Il mio Profilo
Sergio Mario Camporeale
Professore Associato
ING-IND/08 MACCHINE A FLUIDO
Coordinatore del Corso di Laurea Magistrale in Ingegneria Meccanica

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Nato a Molfetta il 30.4.1958.
Laureato con lode in Ingegneria Meccanica il 26.3.1983 presso l'Università degli Studi di Bari.
Dal novembre 1984 al giugno 1992 é stato ricercatore presso l'ENEA (Ente Nazionale per le Nuove Tecnologie, l'Energia e l'Ambiente) sede Centro Ricerche Energia "Casaccia" di Roma, prima presso il Dipartimento Fonti Alternative e Risparmio Energetico e, successivamente, presso l'Area Innovazione.
Presso l'ENEA egli ha svolto attività di sperimentazione nel campo delle applicazioni dell'energia solare, dell'energia geotermica e dei sistemi di risparmio energetico con pompa di calore.
Nel 1991 è risultato vincitore di concorso quale ricercatore presso la Facoltà di Ingegneria dell'Università degli Studi di Reggio Calabria, dove ha prestato servizio dal giugno 1992 fino a settembre 2001.
Nel febbraio 2001 è risultato idoneo a ricoprire il ruolo di professore di II fascia per il settore "Macchine a Fluido", e nel giugno 2001 è stato chiamato a ricoprire tale ruolo dalla I Facoltà di Ingegneria del Politecnico di Bari, dove è attualmente professore associato.
I settori di ricerca sui quali si è sempre concentrata l'attività del prof. Camporeale sono i sistemi di conversione dell'energia e le energie rinnovabili.
Nell'ambito di tali settori, si è occupato di

  • impianti con turbina a gas e a ciclo combinato;
  • impianti innovativi ad elevato rendimento, combustione, impianti solari, turbine eoliche, sistemi per la conversione dell’energia delle onde marine.

E' autore di oltre settanta memorie a contenuto scientifico, la maggior parte delle quali sono state pubblicate su riviste internazionali o presentate a congressi internazionali. E’ stato relatore di oltre cento tesi di laurea di primo e secondo livello, nonché di diverse tesi di dottorato di ricerca.
E’ rappresentante nazionale dei professori associati nella Giunta dei Professori di Macchine e Sistemi Energetici, e Segretario della Sezione Puglia e Basilicata dell’Associazione Termotecnica Italiana.
Fa parte del Collegio dei Docenti del Dottorato di Ricerca in Ingegneria delle Macchine.
E’ stato membro di commissione di PhD presso la School of Engineering della Cranfield University (UK).
E’ referee per diverse riviste scientifiche tra cui Journal of Engineering for Gas Turbines and Power e per Congressi Internazionali quali “ASME Turbo Expo” ed ECOS.
E’ responsabile di contratti di ricerca su temi di ricerca nel settore dell’energia e della combustione con primarie aziende nazionali tra cui Ansaldo Caldaie, Ansaldo Energia, ITEA - Gruppo Sofinter, Bosch.
E’ responsabile per il Politecnico di un progetto di ricerca e sviluppo industriale nell’ambito del Programma “Industria 2015”.
E' stato responsabile di Unità di Ricerca locale nell'ambito di progetti di ricerca nazionale PRIN.

...
+39 080 596 3627
+39 080 596 3411
Sezione Macchine ed Energetica
Via Orabona 4

Pubblicazioni

Il seguente elenco è solo una parte della Produzione scientifica del docente.
Per maggiori informazioni consultare il Catalogo Istituzionale dei prodotti della Ricerca (IRIS) .


  1. Camporeale S M, Laera D and Campa G. Self-excited Combustion Instabilities. Wiley–VCH publishers, 9999. BibTeX

    @inbook{ 11589_60475,
    	author = "Camporeale S M and Laera D and Campa G",
    	title = "Self-excited Combustion Instabilities",
    	year = 9999,
    	publisher = "Wiley–VCH publishers",
    	booktitle = "Handbook of Combustion"
    }
    
  2. Fornarelli F, Camporeale S M, Fortunato B, Torresi M, Oresta P, Magliocchetti L, Miliozzi A and Santo G. CFD analysis of melting process in a shell-and-tube latent heat storage for concentrated solar power plants. APPLIED ENERGY 164:711–722, 2016. DOI BibTeX

    @article{ 11589_59941,
    	author = "Fornarelli F and Camporeale S M and Fortunato B and Torresi M and Oresta P and Magliocchetti L and Miliozzi A and Santo G",
    	title = "CFD analysis of melting process in a shell-and-tube latent heat storage for concentrated solar power plants",
    	year = 2016,
    	journal = "APPLIED ENERGY",
    	volume = 164,
    	abstract = "A latent heat storage system for concentrated solar plants (CSP) is numerically examined by means of CFD simulations. This study aims at identifying the convective flows produced within the melted phase by temperature gradients and gravity. Simulations were carried out on experimental devices for applications to high temperature concentrated solar power plants. A shell-and-tube geometry composed by a vertical cylindrical tank, filled by a Phase Change Material (PCM) and an inner steel tube, in which the heat transfer fluid (HTF) flows, from the top to the bottom, is considered. The conjugate heat transfer process is examined by solving the unsteady Navier–Stokes equations for HTF and PCM and conduction for the tube. In order to take into account the buoyancy effects in the PCM tank the Boussinesq approximation is adopted. The results show that the enhanced heat flux, due to natural convective flow, reduce of about 30% the time needed to charge the heat storage. A detailed description of the convective motion in the melted phase and the heat flux distribution between the HTF and PCM are reported. The effect of the mushy zone constant is also investigated.",
    	keywords = "CFD; Thermal Energy Storage (TES); Phase Change Material (PCM); Molten salts; Shell and tube; Enthalpy-porosity model",
    	doi = "10.1016/j.apenergy.2015.11.106",
    	pages = "711--722"
    }
    
  3. Camporeale Sergio Mario, Ciliberti Patrizia Domenica, Fortunato Bernardo, Torresi Marco and Pantaleo Antonio Marco. Externally Fired Micro Gas Turbine and ORC Bottoming Cycle: Optimal Biomass/Natural Gas CHP Configuration for Residential Energy Demand. In ASME Turbo Expo 2015: Turbine Technical Conference and Exposition . Montreal, Quebec, Canada, June 15–19, 2015. Volume 3. Coal, Biomass and Alternative Fuels; Cycle Innovations; Electric Power; Industrial and Cogeneration. 2015. DOI BibTeX

    @conference{ 11589_55795,
    	author = "Camporeale Sergio Mario and Ciliberti Patrizia Domenica and Fortunato Bernardo and Torresi Marco and Pantaleo Antonio Marco",
    	title = "Externally Fired Micro Gas Turbine and ORC Bottoming Cycle: Optimal Biomass/Natural Gas CHP Configuration for Residential Energy Demand",
    	year = 2015,
    	publisher = "ASME",
    	booktitle = "ASME Turbo Expo 2015: Turbine Technical Conference and Exposition . Montreal, Quebec, Canada, June 15–19, 2015. Volume 3. Coal, Biomass and Alternative Fuels; Cycle Innovations; Electric Power; Industrial and Cogeneration",
    	abstract = "Small scale Combined Heat and Power (CHP) plants present lower electric efficiency in comparison to large scale ones, and this is particularly true when biomass fuels are used. In most cases, the use of both heat and electricity to serve on site energy demand is a key issue to achieve acceptable global energy efficiency and investment profitability. However, the heat demand follows a typical daily and seasonal pattern and is influenced by climatic conditions, in particular in the case of residential and tertiary end users. During low heat demand periods, a lot of heat produced by the CHP plant is discharged. In order to increase the electric conversion efficiency of small scale micro turbine for heat and power cogeneration, a bottoming ORC system can be coupled to the cycle, however this option reduces the temperature and quantity of cogenerated heat available to the load. In this perspective, the paper presents the results of a thermo-economic analysis of small scale CHP plants composed by a micro gas turbine (MGT) and a bottoming Organic Rankine Cycle (ORC), serving a typical residential energy demand. For the topping cycle three different configurations are examined: 1) a simple recuperative micro gas turbine fuelled by natural gas (NG), 2) a dual fuel EFGT cycle, fuelled by biomass and natural gas (50% energy input) (DF) and 3) an externally fired gas turbine (EFGT) with direct combustion of biomass (B). The bottoming cycle is a simple saturated Rankine cycle with regeneration and no superheating. The ORC cycle and the fluid selection are optimized on the basis of the available exhaust gas temperature at the turbine exit. The research assesses the influence of the thermal energy demand typology (residential demand with cold, mild and hot climate conditions) and CHP plant operational strategies (baseload vs heat driven vs electricity driven operation mode) on the global energy efficiency and profitability of the following three configurations: A) MGT with cogeneration; B) MGT+ ORC without cogeneration; C) MGT+ORC with cogeneration. In all cases, a back-up boiler is assumed to match the heat demand of the load (fed by natural gas or biomass). The research explores the profitability of bottoming ORC in view of the following tradeoffs: (i) lower energy conversion efficiency and higher investment cost of high biomass input rate with respect to natural gas; (ii) higher efficiency but higher costs and reduced heat available for cogeneration in the bottoming ORC; (ii) higher primary energy savings and revenues from feed-in tariff available for biomass electricity fed into the grid.",
    	keywords = "Biomass , Natural gas , Combined heat and power , Cycles , Micro gas turbines , Organic Rankine cycle",
    	doi = "10.1115/GT2015-43571"
    }
    
  4. Torresi Marco, De Tomaso Elena, Fortunato Bernardo, Camporeale Sergio Mario and Pascazio Giuseppe. High frequency dynamics of force coefficients in vawt blades under dynamic stall condition. In Proceedings of the ASME Turbo Expo 9. 2015. URL, DOI BibTeX

    @conference{ 11589_62873,
    	author = "Torresi Marco and De Tomaso Elena and Fortunato Bernardo and Camporeale Sergio Mario and Pascazio Giuseppe",
    	title = "High frequency dynamics of force coefficients in vawt blades under dynamic stall condition",
    	year = 2015,
    	publisher = "American Society of Mechanical Engineers (ASME)",
    	volume = 9,
    	booktitle = "Proceedings of the ASME Turbo Expo",
    	abstract = "Blades of lift driven Vertical Axis Wind Turbines can experience dynamic stall especially at low tip speed ratios. Dynamic stall has significant consequences in terms of performance, vibration, noise and structural integrity of the blades. For this reason, it is worth to investigate this complex phenomenon. In particular, detailed CFD analyses have been carried out on a pitching NACA 0015 airfoil performing several cycles using a RANS approach and implementing the Transition SST turbulence model in order to take into account the laminar-to-turbulent boundary layer transition. A good agreement has been achieved in terms of phase-averaged force coefficients versus angle of attack when comparing these numerical results with the experimental data obtained at Glasgow University. However, looking at the instantaneous time-dependent force coefficients over several cycles, it appears that, in particular during the blade down-stroke, the hysteresis cycles are quite different one from the other and all from the phase-averaged one. Moreover, each hysteresis cycle shows oscillations at frequencies higher than that of the pitching motion. The investigation of such a behavior can be important in order to avoid the occurrence of dangerous resonance conditions at the blade natural frequency.",
    	keywords = "CFD; Dynamic stall; Pitching airfoil; Transition SST turbulence model; VAWT; Engineering (all)",
    	url = "http://www.asmedl.org/journals/doc/ASMEDL-home/proc/",
    	doi = "10.1115/GT2015-42987"
    }
    
  5. Antonio M Pantaleo, Patrizia Ciliberti, Camporeale S and Nilay Shah. Thermo-economic assessment of small scale biomass CHP: steam turbines vs ORC in different energy demand segments. In The 7th International Conference on Applied Energy – ICAE2015 75. 2015, 1609–1617. DOI BibTeX

    @conference{ 11589_18358,
    	author = "Antonio M Pantaleo and Patrizia Ciliberti and Camporeale S and Nilay Shah",
    	title = "Thermo-economic assessment of small scale biomass CHP: steam turbines vs ORC in different energy demand segments",
    	year = 2015,
    	publisher = "Elsevier",
    	journal = "ENERGY PROCEDIA",
    	volume = 75,
    	booktitle = "The 7th International Conference on Applied Energy – ICAE2015",
    	abstract = "The energy performance and profitability of CHP plants, and the selection of the optimal conversion technology and size, are highly influenced by the typology of energy demand (load-duration curve, temperature of heat demand, heat and electricity load patterns). In the small scale range, where CHP can be particularly promising to match local heat and power demand, the technologies based on boilers coupled to steam turbines (ST) and bottoming Organic Rankine Cycle (ORC) can be operated in flexible mode to match the energy demand. This is particularly important when high temperature heat is required (i.e. industrial end users). In the case of solid biomass fired CHP, the boiler + ST/ORC option could be competitive with the alternatives of boiler + Stirling engine, externally fired GT or gasification + ICE. In this paper, a thermo-economic comparison of the following biomass-CHP configurations is proposed: (A) boiler + ST + bottoming ORC, (B) boiler + ST, (C) boiler + ORC and (D) configuration (A) with option to switch on or off the bottoming ORC on the basis of the heat demand available. The focus is on a 1 MWt biomass boiler, and the plants are operated to serve residential (r), tertiary (t) and industrial (i) heat and power demand. The thermodynamic cycles are modeled by Cycle-Tempo, while the energy demand is modeled through simplified indicators (temperature of heat demand, equivalent thermal demand hours). On the basis of the results of thermodynamic simulations, upfront and operational costs assessment, and Italian energy policy scenario (feed-in tariffs for biomass electricity), the global energy conversion efficiency and investment profitability is estimated, for each CHP configuration and energy demand segment. The results indicate the optimal CHP configuration for each end user and the key technical and economic factors in the Italian legislative framework.",
    	doi = "10.1016/j.egypro.2015.07.381",
    	pages = "1609--1617"
    }
    
  6. Camporeale Sergio M, Pantaleo Antonio M, Ciliberti Patrizia D and Fortunato Bernardo. Cycle configuration analysis and techno-economic sensitivity of biomass externally fired gas turbine with bottoming ORC. ENERGY CONVERSION AND MANAGEMENT 105:1239–1250, 2015. DOI BibTeX

    @article{ 11589_55683,
    	author = "Camporeale Sergio M and Pantaleo Antonio M and Ciliberti Patrizia D and Fortunato Bernardo",
    	title = "Cycle configuration analysis and techno-economic sensitivity of biomass externally fired gas turbine with bottoming ORC",
    	year = 2015,
    	journal = "ENERGY CONVERSION AND MANAGEMENT",
    	volume = 105,
    	abstract = "This paper focuses on the energy analysis of a combined cycle composed by a topping 1.3 MW Externally Fired Gas Turbine (EFGT) with direct combustion of biomass and a bottoming Organic Rankine Cycle (ORC). A non recuperative scheme is assumed for the EFGT in order to avoid the costs of the recuperator. This scheme presents lower conversion efficiency in comparison to a recuperative one, however the heat available for the bottoming cycle is at a higher temperature (about 400 °C). In the present work, evaporation pressure and superheating temperature of ORC cycle are ranged in order to examine different bottoming cycles, including supercritical ones. Different organic fluids are investigated, such as siloxanes and toluene, aiming to analyze how the fluid choice influences both the plant performance and important features for the ORC turbine design. On the basis of the results of the thermodynamic simulation, a thermo-economic assessment is proposed, to investigate the profitability of the bottoming ORC in comparison to only topping EFGT, and the most influencing techno-economic factors that influence the selection of the optimal cycle. In order to propose real case studies, the Italian bioenergy subsidy framework is assumed, and the sensitivity assessment includes the options of only electricity and CHP, at different biomass cost, thermal energy demand and heat selling price values.",
    	doi = "10.1016/j.enconman.2015.08.069",
    	pages = "1239--1250"
    }
    
  7. S M Camporeale, Antonio Pantaleo, Patrizia Domenica Ciliberti and Bernardo Fortunato. THERMO-ECONOMIC ANALYSIS AND FLUID SELECTION OF THE BOTTOMING ORC CYCLE COUPLED WITH AN EXTERNALLY FIRED GAS TURBINE. In ASME ATI UIT 2015. 2015. BibTeX

    @conference{ 11589_23022,
    	author = "S M Camporeale and Antonio Pantaleo and Patrizia Domenica Ciliberti and Bernardo Fortunato",
    	title = "THERMO-ECONOMIC ANALYSIS AND FLUID SELECTION OF THE BOTTOMING ORC CYCLE COUPLED WITH AN EXTERNALLY FIRED GAS TURBINE",
    	year = 2015,
    	booktitle = "ASME ATI UIT 2015",
    	abstract = "This paper is focused on the energy analysis of a bottoming Organic Rankine Cycle (ORC) coupled to a topping 1.3 MW. Externally Fired Gas Turbine (EFGT) with direct combustion of biomass. In particular, in this paper the ORC evaporation pressure and superheating temperature are ranged in order to examine different bottoming cycles, including supercritical ones. Different organic fluids are also examined, such as siloxanes and toluene, aiming to analyze how the fluid choice influences both the plant performance and important features for the ORC turbine design. On the basis of the results of the thermodynamic simulation, a thermo-economic assessment is proposed, to investigate the relative profitability of the bottoming ORC in comparison to only topping EFGT. For this purpose, the Italian bioenergy subsidy framework is assumed, and a sensitivity assessment is proposed, comparing the options of only electricity and CHP, and varying the biomass cost, thermal energy demand and heat selling price."
    }
    
  8. Camporeale S, Fortunato B, Torresi M, Turi F, Pantaleo A and Pellerano A. Part Load Performance and Operating Strategies of a Natural Gas—Biomass Dual Fueled Microturbine for Combined Heat and Power Generation. JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER 137:121401–121413, 2015. DOI BibTeX

    @article{ 11589_624,
    	author = "Camporeale S and Fortunato B and Torresi M and Turi F and Pantaleo A and Pellerano A",
    	title = "Part Load Performance and Operating Strategies of a Natural Gas—Biomass Dual Fueled Microturbine for Combined Heat and Power Generation",
    	year = 2015,
    	journal = "JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER",
    	volume = 137,
    	abstract = "The focus of this paper is on the part load performance of a small scale (100 kWe) combined heat and power (CHP) plant fired by natural gas (NG) and solid biomass to serve a residential energy demand. The plant is based on a modified regenerative microgas turbine (MGT), where compressed air exiting from recuperator is externally heated by the hot gases produced in a biomass furnace; then the air is conveyed to combustion chamber where a conventional internal combustion with NG takes place, reaching the maximum cycle temperature allowed by the turbine blades. The hot gas expands in the turbine and then feeds the recuperator, while the biomass combustion flue gases are used for preheating the combustion air that feeds the furnace. The part load efficiency is examined considering a single shaft layout of the gas turbine and variable speed regulation. In this layout, the turbine shaft is connected to a high speed electric generator and a frequency converter is used to adjust the frequency of the produced electric power. The results show that the variable rotational speed operation allows high the part load efficiency, mainly due to maximum cycle temperature that can be kept about constant. Different biomass/NG energy input ratios are also modeled, in order to assess the trade-offs between: (i) lower energy conversion efficiency and higher investment cost when increasing the biomass input rate and (ii) higher primary energy savings (PESs) and revenues from feed-in tariff available for biomass electricity fed into the grid. The strategies of baseload (BL), heat driven (HD), and electricity driven (ED) plant operation are compared, for an aggregate of residential end-users in cold, average, and mild climate conditions",
    	doi = "10.1115/1.4030499",
    	pages = "121401--121413"
    }
    
  9. Laera Davide, Gentile Andrea, Camporeale Sergio M, Bertolotto Edoardo, Rofi Luca and Bonzani Federico. Numerical and Experimental Investigation of Thermo–Acoustic Combustion Instability in a Longitudinal Combustion Chamber: Influence of the Geometry of the Plenum. In ASME Turbo Expo 2015: Turbine Technical Conference and Exposition, Volume 4A: Combustion, Fuels and Emissions, Montreal, Quebec, Canada, June 15–19, 2015 Volume 4A: Combustion, Fuels and Emissions. 2015. DOI BibTeX

    @conference{ 11589_55797,
    	author = "Laera Davide and Gentile Andrea and Camporeale Sergio M and Bertolotto Edoardo and Rofi Luca and Bonzani Federico",
    	title = "Numerical and Experimental Investigation of Thermo–Acoustic Combustion Instability in a Longitudinal Combustion Chamber: Influence of the Geometry of the Plenum",
    	year = 2015,
    	volume = "Volume 4A: Combustion, Fuels and Emissions",
    	booktitle = "ASME Turbo Expo 2015: Turbine Technical Conference and Exposition, Volume 4A: Combustion, Fuels and Emissions, Montreal, Quebec, Canada, June 15–19, 2015",
    	doi = "10.1115/GT2015-42322"
    }
    
  10. Dr -Ing Roberto Saracino, Dipl -Ing Giuseppe Toto, Dipl -Ing Nora Ludewig, Dipl -Sönke Mannal, Stefan Motz, Michael Krüger, S M Camporeale and Andrea Nitti. Cylinder Pressure-based Functions: Overview, Benefits and Algorithm Considerations. In Symposium for Combustion Control 2015. 2015. BibTeX

    @conference{ 11589_21848,
    	author = "Dr -Ing Roberto Saracino and Dipl -Ing Giuseppe Toto and Dipl -Ing Nora Ludewig and Dipl -Sönke Mannal and Stefan Motz and Michael Krüger and S M Camporeale and Andrea Nitti",
    	title = "Cylinder Pressure-based Functions: Overview, Benefits and Algorithm Considerations",
    	year = 2015,
    	booktitle = "Symposium for Combustion Control 2015",
    	abstract = "The strategies adopted to control the combustion in Diesel applications play a key role when dealing with current and future requirements of the automotive market for Diesel powertrain systems. Direct measurement of the combustion process, e.g. by means of in-cylinder pressure sensor, offers the possibility to achieve the target “quasi” automatically all over the vehicle lifetime in widely different operating conditions. Beside the traditional combustion control in closed loop (i.e. based on inner torque and/or combustion timing), the exploitation of in-cylinder pressure signal offers a variety of possible further applications, e.g. smart detection of Diesel fuel quality variation, control of combustion noise, modeling engine exhaust emission (e.g. NOx). In this contribution we like to address two main topics. A) an overview about the ongoing cylinder pressure based function development activities is given and the respective benefits are illustrated showing some experimental results. B) Additionally we like to present the results of recent developments regarding efficient implementations of some cylinder pressure based features helping to limit the impact of these new functionalities on ECU resources."
    }
    
  11. Torresi M, De Benedittis F A, Fortunato B and Camporeale S M. Performance and flow field evaluation of a Savonius rotor tested in a wind tunnel. ENERGY PROCEDIA 45:207–216, 2014. URL, DOI BibTeX

    @article{ 11589_3686,
    	author = "Torresi M and De Benedittis F A and Fortunato B and Camporeale S M",
    	title = "Performance and flow field evaluation of a Savonius rotor tested in a wind tunnel",
    	year = 2014,
    	journal = "ENERGY PROCEDIA",
    	volume = 45,
    	abstract = "A renewed interest on Vertical Axis Wind Turbines (VAWTs) arose from their great capacity for integration within urban areas and for applications of distributed generation. In order to be able to highly improve their performance, making them competitive with respect to the more consolidated Horizontal Axis Wind Turbines (HAWTs), it is fundamental to have a deeper comprehension of their fluid dynamic behavior. In order to reach this goal, a two-bucket Savonius rotor has been designed, built from a PVC pipe with a nominal diameter of 200 mm, and tested in the wind tunnel of the Department of Mechanics, Mathematics and Managment (DMMM) of the Politecnico di Bari. The Savonius rotor is connected to an AC brushless servo motor, able to control either the braking torque or the rotational speed. This paper describes the experimental evaluation of the unsteady flow field downstream the rotor by means of a Constant Temperature hot wire Anemometer (CTA). Whilst, for performance analysis, the torque measurements have been obtained directly from the Servo Amplifier torque monitor.",
    	keywords = "Vertical Axis Wind Turbines; Savonius Rotor; Wind Tunnel tests",
    	url = "http://www.sciencedirect.com/science/article/pii/S1876610214000241",
    	doi = "10.1016/j.egypro.2014.01.023",
    	pages = "207--216"
    }
    
  12. Fortunato B, Lippolis A, Vacca G, Amirante R, Camporeale S M, Dambrosio, Oresta P, Torresi M and Fornarelli F. Activities of the research group on energy efficiency and renewable energy. In Groups mResearch on KERTS and SCS - 1st Workshop on the State of the Art and Challenges of Research Efforts of POLIBA B. 2014, 173–177. BibTeX

    @conference{ 11589_18396,
    	author = "Fortunato B and Lippolis A and Vacca G and Amirante R and Camporeale S M and Dambrosio and Oresta P and Torresi M and Fornarelli F",
    	title = "Activities of the research group on energy efficiency and renewable energy",
    	year = 2014,
    	publisher = "Gangemi",
    	address = "ROMA",
    	volume = "B",
    	booktitle = "Groups mResearch on KERTS and SCS - 1st Workshop on the State of the Art and Challenges of Research Efforts of POLIBA",
    	keywords = "Energy ; Renewable; Efficiency",
    	pages = "173--177"
    }
    
  13. Camporeale SM, Fortunato B, Torresi M, Turi F, Pantaleo AM and Pellerano A. Part load performance and operating strategies of a natural gas–biomass dual fuelled microturbine for CHP generation. In Proceedings of ASME Turbo Expo 2014: Power for Land, Sea and Air GT2014. 2014. BibTeX

    @conference{ 11589_23346,
    	author = "Camporeale SM and Fortunato B and Torresi M and Turi F and Pantaleo AM and Pellerano A",
    	title = "Part load performance and operating strategies of a natural gas–biomass dual fuelled microturbine for CHP generation",
    	year = 2014,
    	booktitle = "Proceedings of ASME Turbo Expo 2014: Power for Land, Sea and Air GT2014",
    	abstract = "The focus of this paper is on the part load performance of a small scale (100kWe) combined heat and power (CHP) plant fired by natural gas and solid biomass to serve a residential energy demand. The plant is based on a modified regenerative micro gas turbine (MGT), where compressed air exiting from recuperator is externally heated by the hot gases produced in a biomass furnace; then the air is conveyed to combustion chamber where a conventional internal combustion with natural gas takes place, reaching the maximum cycle temperature allowed by the turbine blades. The hot gas expands in the turbine and then feeds the recuperator, while the biomass combustion flue gases are used for pre-heating the combustion air that feeds the furnace. The part load efficiency is examined considering a single shaft layout of the gas turbine and variable speed regulation. In this layout, the turbine shaft is connected to a high speed electric generator and a frequency converter is used to adjust the frequency of the produced electric power. The results show that the variable rotational speed operation allows high the part load efficiency, mainly due to maximum cycle temperature that can be kept about constant. Different biomass/natural gas energy input ratios are also modelled, in order to assess the trade-offs between: (i) lower energy conversion efficiency and higher investment cost when increasing the biomass input rate; (ii) higher primary energy savings and revenues from feed-in tariff available for biomass electricity fed into the grid. The strategies of base load (BL), heat driven (HD) and electricity driven (ED) plant operation are compared, for an aggregate of residential end-users in cold, average and mild climate conditions.",
    	keywords = "cogeneration; microturbine; externally fired"
    }
    
  14. Morgese G, Torresi M, Fortunato B and Camporeale S M. Design of an axial impulse turbine for enthalpy drop recovery. In Proceedings of ASME Turbo Expo 2014: Power for Land, Sea and Air GT2014. 2014. DOI BibTeX

    @conference{ 11589_16491,
    	author = "Morgese G and Torresi M and Fortunato B and Camporeale S M",
    	title = "Design of an axial impulse turbine for enthalpy drop recovery",
    	year = 2014,
    	booktitle = "Proceedings of ASME Turbo Expo 2014: Power for Land, Sea and Air GT2014",
    	abstract = "In industrial process plants, often there is the need to reduce the pressure of the operating flow. Generally this is performed by means of valves which expand the flow without any work done. The same operation could be performed by replacing these valves with turbines, with the advantage of energy recovery, hence improving the overall efficiency of the system. In this work, a simple and rapid method is shown in order to design a single stage, straight bladed, axial impulse turbine for enthalpy recovery. Assigned the desired flow rate and the minimum power output, the turbine design is performed according to a one-dimensional study into which loss effects are considered by means of appropriate coefficients. From the one-dimensional analysis the heights, the pitch angle, the inlet and outlet angles of both rotor and stator blades are obtained. Actually, the rotor and stator blade profiles are defined by means of several analytical functions. The blade design is then validated by means of CFD simulations. The definition of loss coefficients and blade geometrical parameters is clearly an iterative process, which needs to be repeated until convergence is reached. Furthermore, by means of fully 3D simulations, the effect of the rotor-stator distance is investigated in order to maximize the turbine performance.",
    	keywords = "Axial impulse turbine ; CFD; enthalpy drop recovery",
    	doi = "10.1115/GT2014-25284"
    }
    
  15. Torresi M, Fortunato B, Camporeale S M and Dambrosio L. Vertical axis wind turbines for distributed power generation. In Contributi di Ricerca 2 - Research Contributions 2 C2. 2014, 75–79. BibTeX

    @conference{ 11589_18246,
    	author = "Torresi M and Fortunato B and Camporeale S M and Dambrosio L",
    	title = "Vertical axis wind turbines for distributed power generation",
    	year = 2014,
    	publisher = "Gangemi",
    	address = "ROMA",
    	volume = "C2",
    	booktitle = "Contributi di Ricerca 2 - Research Contributions 2",
    	abstract = "A renewed interest on Vertical Axis Wind Turbines (VAWTs) arose from their ability to be effectively integrated within urban contests in the spirit of distributed generation. In order to improve their performance, a deeper comprehension of their fluid dynamic behavior is necessary. In the last years, at Politecnico di Bari a great effort has been addressed toward the numerical and experimental investigation of both lift- and drag-driven VAWTs. In particular, constant temperature hot wire anemometry (CTA) is used for the evaluation of the unsteady flow field downstream the VAWT prototypes tested in the subsonic closed-loop wind tunnel of the Politecnico di Bari, whilst, torque measurements are obtained directly from the servo amplifier monitor. Furthermore, by means of CFD analysis, a deep insight into the complex fluid-dynamics of the VAWTs has been obtained. All the acquired experience ended in the development of an innovative lift-driven VAWT prototype currently under investigation",
    	keywords = "Renewable energy; wind tunnel",
    	pages = "75--79"
    }
    
  16. Laera Davide, Campa Giovanni, Camporeale Sergio M, Bertolotto Edoardo, Rizzo Sergio, Bonzani Federico and Ferrante Antonio. Modelling of Thermoacoustic Combustion Instabilities Phenomena: Application to an Experimental Rig for Testing Full Scale Burners. In ASME Turbo Expo 2014: Turbine Technical Conference and Exposition Volume 4A: Combustion, Fuels and Emissions Düsseldorf, Germany, June 16–20, 2014. 2014. DOI BibTeX

    @conference{ 11589_55800,
    	author = "Laera Davide and Campa Giovanni and Camporeale Sergio M and Bertolotto Edoardo and Rizzo Sergio and Bonzani Federico and Ferrante Antonio",
    	title = "Modelling of Thermoacoustic Combustion Instabilities Phenomena: Application to an Experimental Rig for Testing Full Scale Burners",
    	year = 2014,
    	booktitle = "ASME Turbo Expo 2014: Turbine Technical Conference and Exposition Volume 4A: Combustion, Fuels and Emissions Düsseldorf, Germany, June 16–20, 2014",
    	doi = "10.1115/GT2014-25273"
    }
    
  17. Campa Giovanni and Camporeale Sergio Mario. Influence of Nonlinear Effects on the Limit Cycle in a Combustion Chamber Equipped With Helmholtz Resonator. In ASME Turbo Expo 2014: Turbine Technical Conference and Exposition Volume 4A: Combustion, Fuels and Emissions Düsseldorf, Germany, June 16–20, 2014. 2014. DOI BibTeX

    @conference{ 11589_55799,
    	author = "Campa Giovanni and Camporeale Sergio Mario",
    	title = "Influence of Nonlinear Effects on the Limit Cycle in a Combustion Chamber Equipped With Helmholtz Resonator",
    	year = 2014,
    	booktitle = "ASME Turbo Expo 2014: Turbine Technical Conference and Exposition Volume 4A: Combustion, Fuels and Emissions Düsseldorf, Germany, June 16–20, 2014",
    	abstract = "The influence of the introduction of a Helmholtz resonator as a passive damper in a gas turbine combustion chamber on the bifurcation mechanism that characterizes the transition to instability is investigated. Bifurcation diagrams are tracked in order to identify the conditions for which the machine works in a stable zone and which are the operative parameters that bring the machine to unstable conditions. This work shows that a properly designed passive damper system increases the stable zone, moving the unstable zone and the bistable zone (in the case of a subcritical bifurcation) to higher values of the operative parameters, while have a limited influence on the amplitude of limit cycle. In order to examine the effect of the damper, a gas turbine combustion chamber is first modeled as a simple cylindrical duct, where the flame is concentrated in a narrow area at around one quarter of the duct. Heat release fluctuations are coupled to the velocity fluctuations at the entrance of the combustion chamber by means of a nonlinear correlation. This correlation is a polynomial function in which each term is an odd-powered term. The corresponding bifurcation diagrams are tracked and the passive damper is designed in order to increase the stability zone, so reducing the risk to have an unstable condition. Then both plenum and combustion chamber are modeled with annular shape and the influence of Helmholtz resonators on the bifurcation is examined.",
    	keywords = "Combustion chambers, Themoacoustic combustion instability, Limit cycles",
    	doi = "10.1115/GT2014-25228"
    }
    
  18. Antonio M Pantaleo, S M Camporeale and Nilay Shah. Natural gas–biomass dual fuelled microturbines: Comparison of operating strategies in the Italian residential sector. APPLIED THERMAL ENGINEERING 71:686–696, 2014. DOI BibTeX

    @article{ 11589_1588,
    	author = "Antonio M Pantaleo and S M Camporeale and Nilay Shah",
    	title = "Natural gas–biomass dual fuelled microturbines: Comparison of operating strategies in the Italian residential sector",
    	year = 2014,
    	journal = "APPLIED THERMAL ENGINEERING",
    	volume = 71,
    	abstract = "This paper compares different operating strategies for small scale (100 kWe) combined heat and power (CHP) plants fired by natural gas and solid biomass to serve a residential energy demand. The focus is on a dual fuel micro gas turbine (MGT) cycle. Various biomass/natural gas energy input ratios are modelled, in order to assess the trade-offs between: (i) lower energy conversion efficiency and higher investment cost when increasing the biomass input rate; (ii) higher primary energy savings and revenues from feedin tariff available for biomass electricity fed into the grid. The strategies of baseload (BL), heat driven (HD) and electricity driven (ED) plant operation are compared, for an aggregate of residential end-users in cold, average and mild climate conditions. On the basis of the results from thermodynamic assessment and simulation at partial load operation, CAPEX and OPEX estimates, and Italian energy policy scenario (incentives available for biomass electricity, on-site and high efficiency CHP), the maximum global energy efficiency, primary energy savings and investment profitability is found, as a function of biomass/ natural gas ratio, plant operating strategy and energy demand typology. The thermal and electric conversion efficiency ranged respectively between 46 and 38% and 30 and 19% for the natural gas and biomass fired case studies. The IRR of the investment was highly influenced by the load/CHP thermal power ratio and by the operation mode. The availability of high heat demand levels was also a key factor, to avoid wasted cogenerated heat and maximize CHP sales revenues. BL operation presented the highest profitability because of the higher revenues from electricity sales. Climate area was another important factor, mainly in case of low load/CHP ratios. Moreover, at low load/CHP power ratio and for the BL operation mode, the dual fuel option presented the highest profitability. This is due to the lower cost of biomass fuel in comparison to natural gas and the high subsidies available for biomass electricity by feedin tariffs. The results show that dual fuel MT can be an interesting option to increase efficiencies, flexibility and plant reliability at low cost in comparison to only biomass systems, facilitating an integration of renewable and fossil fuel systems.",
    	keywords = "EFGT; Biomass; Microturbine",
    	doi = "http://dx.doi.org/10.1016/j.applthermaleng.2013.10.056",
    	pages = "686--696"
    }
    
  19. G Campa and S M camporeale. Prediction of the Thermoacoustic Combustion Instabilities in Practical Annular Combustors. JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER 136:1–10, 2014. URL, DOI BibTeX

    @article{ 11589_8206,
    	author = "G Campa and S M camporeale",
    	title = "Prediction of the Thermoacoustic Combustion Instabilities in Practical Annular Combustors",
    	year = 2014,
    	journal = "JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER",
    	volume = 136,
    	abstract = "A three-dimensional finite element code is used for the eigenvalue analysis of the thermoacoustic combustion instabilities modeled through the Helmholtz equation. A full annular combustion chamber, equipped with several burners, is examined. Spatial distributions for the heat release intensity and for the time delay are used for the linear flame model. Burners, connecting the plenum and the chamber, are modeled by means of the transfer matrix method. The influence of the parameters characterizing the burners and the flame on the stability levels of each mode of the system is investigated. The obtained results show the influence of the 3D distribution of the flame on the modes. Additionally, the results show what types of modes are most likely to yield humming in an annular combustion chamber. The proposed methodology is intended to be a practical tool for the interpretation of the thermoacoustic phenomenon (in terms of modes, frequencies, and stability maps) both in the design stage and in the check stage of gas turbine combustion chambers.",
    	url = "http://gasturbinespower.asmedigitalcollection.asme.org/",
    	doi = "10.1115/1.4027067",
    	pages = "1--10"
    }
    
  20. Davide Laera, Giovanni Campa, S M Camporeale, Edoardo Bertolotto, Sergio Rizzo, Federico Bonzani, Antonio Ferrante and Alessandro Saponaro. Modelling of Thermoacoustic Combustion Instabilities Phenomena: Application to an Experimental Test Rig. ENERGY PROCEDIA 45:1392–1401, 2014. URL, DOI BibTeX

    @article{ 11589_861,
    	author = "Davide Laera and Giovanni Campa and S M Camporeale and Edoardo Bertolotto and Sergio Rizzo and Federico Bonzani and Antonio Ferrante and Alessandro Saponaro",
    	title = "Modelling of Thermoacoustic Combustion Instabilities Phenomena: Application to an Experimental Test Rig",
    	year = 2014,
    	journal = "ENERGY PROCEDIA",
    	volume = 45,
    	abstract = "Lean premixed combustion chambers fuelled by natural gas and used in modern gas turbines for power generation are often affected by combustion instabilities generated by mutual interactions between pressure fluctuations and heat oscillations produced by the flame. Due to propagation and reflection of the acoustic waves in the combustion chamber, very strong pressure oscillations are generated and the chamber may be damaged. This phenomenon is generally referred as thermoacoustic instability, or humming, owing to the cited coupling mechanism of pressure waves and heat release fluctuations. Over the years, several different approaches have been developed in order to model this phenomenon and to define a method able to predict the onset of thermoacoustic instabilities. In order to validate analytical and numerical thermoacoustic models, experimental data are required. In this context, an experimental test rig is designed and operated in order to characterize the propensity of the burner to determine thermoacoustic instabilities. In this paper, a method able to predict the onset of thermoacoustic instabilities is examined and applied to a test rig in order to validate the proposed methodology. The experimental test is designed to evaluate the propensity to thermoacoustic instabilities of full scale Ansaldo Energia burners used in gas turbine systems for production of energy. The experimental work is conducted in collaboration with Ansaldo Energia and CCA (Centro Combustione e Ambiente) at the Ansaldo Caldaie facility in Gioia del Colle (Italy). Under the hypotheses of low Mach number approximation and linear behaviour of the acoustic waves, the heat release fluctua- tions are introduced in the acoustic equations as source term. In the frequency domain, a complex eigenvalue problem is solved. It allow us to identify the frequencies of thermoacoustic instabilities and the growth rate of the pressure oscillations. The Burner Transfer Matrix (BTM) approach is used to characterize the influence of the burner characteristics. Furthermore, the influence of different operative conditions is examined considering temperature gradients along the combustion chamber.",
    	url = "http://www.sciencedirect.com/science/article/pii/S1876610214001477",
    	doi = "10.1016/j.egypro.2014.01.146",
    	pages = "1392--1401"
    }
    

 

Attività Didattiche

Motori a combustione interna [Laurea Magistrale in Ingegneria Meccanica] (Primo semestre - Secondo Anno)


Centrali Termiche [Laurea Magistrale in Ingegneria Meccanica] (secondo semestre - Secondo Anno)


Sistemi energetici II (Taranto) [Laurea Magistrale in Ingegneria Meccanica] (primo semestre - primo Anno)


Per maggiori informazioni consultare il sito di Ateneo e il portale della Didattica .

Attività di Ricerca

PE8 Products and process engineering: product design, process design and control, construction methods, civil engineering, energy systems, material engineering
PE8_5 Fluid mechanics, hydraulic-, turbo-, and piston engines
PE8_6 Energy processes engineering

Sistemi di conversione dell'energia.

Energie rinnovabili.

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