Impact of heat transfer on the performance of micro gas turbines

The miniaturisation of gas turbine engines poses significant challenges to the performance in heat management due to the close proximity of the hot and cold components. This paper examines the scale and significance of heat transfer within micro gas turbines and aims to quantify the corresponding impacts on performance and efficiency. To study these effects, a reduced order lumped capacitance heat transfer network is developed. Two different micro turbine configurations are investigated and the effect of micro turbine size and material selection is explored. The investigation shows that the choice of configuration and materials influences the impact of heat transfer on the micro turbine performance and heat management is therefore key to achieving the full potential of micro turbines.

[1]  Hyung Hee Cho,et al.  Effect of the thermal insulation on generator and micro gas turbine system , 2013 .

[2]  Isashi Takehara,et al.  Summary of CGT302 Ceramic Gas Turbine Research and Development Program , 2002 .

[3]  C. Rodgers.  25-5 Kwe Microturbine Design Aspects , 2000 .

[4]  Tom Verstraete,et al.  Multidisciplinary Optimization of a Radial Compressor for Microgas Turbine Applications , 2010 .

[5]  Aristide F. Massardo,et al.  Micro gas turbine thermodynamic and economic analysis up to 500kWe size , 2011 .

[6]  A. H. Epstein,et al.  Aerothermodynamics of Micro-Turbomachinery , 2004 .

[7]  J. R. Serrano,et al.  An experimental procedure to determine heat transfer properties of turbochargers , 2010 .

[8]  Kyuho Sim,et al.  Development and performance measurement of micro-power pack using micro-gas turbine driven automotive alternators , 2013 .

[9]  David Gordon Wilson,et al.  The utilization of recuperated and regenerated engine cycles for high-efficiency gas turbines in the 21st century , 1996 .

[10]  M. A. Reyes-Belmonte,et al.  Determination of heat flows inside turbochargers by means of a one dimensional lumped model , 2013, Math. Comput. Model..

[11]  Tong Seop Kim,et al.  The effect of firing biogas on the performance and operating characteristics of simple and recuperative cycle gas turbine combined heat and power systems , 2012 .

[12]  Keith Robert Pullen,et al.  Design Overview of a Three Kilowatt Recuperated Ceramic Turboshaft Engine , 2010 .

[13]  Dries Verstraete,et al.  Development of a Mixer Model to Compare Mixed and Unmixed HBPR Turbofans , 2008 .

[14]  T. M. Fesich,et al.  The Efficiency of Turbocharger Compressors With Diabatic Flows , 2010 .

[15]  C. Rodgers.  Some Effects of Size on the Performances of Small Gas Turbines , 2003 .

[16]  Siaw Kiang Chou,et al.  Performance study of a microturbine system for cogeneration application , 2004 .

[17]  Francesco Martelli,et al.  Exhaust emissions from liquid fuel micro gas turbine fed with diesel oil, biodiesel and vegetable oil , 2013 .

[18]  Colin F. McDonald,et al.  Recuperator considerations for future higher efficiency microturbines , 2003 .

[19]  Dries Verstraete,et al.  Development of a micro turboprop to extend altitude capabilities of small UAVs , 2011 .

[20]  Dieter Bohn,et al.  Conjugate Flow and Heat Transfer Investigation of a Turbo Charger: Part II — Experimental Results , 2003 .

[21]  Colin Rodgers,et al.  The Ubiquitous Personal Turbine—A Power Vision for the 21st Century , 2002 .

[22]  Dries Verstraete,et al.  Development and Validation Of A Modular Gas Turbine Engine Performance Model For The Assessment Of Advanced Engine Technologies , 2007 .

[23]  J. Hétet,et al.  Turbocharger Heat Transfer Modeling Under Steady and Transient Conditions , 2009 .

[24]  P. R. Spina,et al.  Analysis of innovative micro-CHP systems to meet household energy demands , 2012 .

[25]  Ian A. Waitz,et al.  High Power Density Silicon Combustion Systems for Micro Gas Turbine Engines , 2003 .

[26]  Ricardo Martinez-Botas,et al.  Heat transfer analysis in a turbocharger turbine: An experimental and computational evaluation , 2012 .

[27]  Tom Verstraete,et al.  Numerical Study of the Heat Transfer in Micro Gas Turbines , 2007 .

[28]  M. Malobabic,et al.  IGTC-73 INFLUENCE OF HEAT TRANSFER BETWEEN TURBINE AND COMPRESSOR ON THE PERFORMANCE OF SMALL TURBOCHARGERS(Session B-9 Turbocharger I) , 1984 .

[29]  P. A. Pilavachi.  Mini- and micro-gas turbines for combined heat and power , 2002 .

[30]  P Pilidis,et al.  Performance evaluation and case studies of microturbines fuelled with natural gas and diesel , 2004 .

[31]  Francesco Martelli,et al.  Straight vegetable oil use in Micro-Gas Turbines: System adaptation and testing , 2012 .

[32]  M. Rautenberg,,et al.  Influence of heat transfer between turbine and compressor on the performance of small turbochargers , 1984 .

[33]  P Fiorini,et al.  Micropower generation with microgasturbines: A challenge , 2007 .

[34]  Dries Verstraete,et al.  IMPACT OF HEAT TRANSFER ON CENTRIFUGAL COMPRESSORS OF MICRO TURBINES , 2012 .

[35]  Colin Rodgers,et al.  Small recuperated ceramic microturbine demonstrator concept , 2008 .

[36]  Christelle Périlhon,et al.  Influence of Heat Transfer on Gas Turbine Performance , 2011 .

[37]  J. Seume,et al.  Impact of Turbocharger Non-Adiabatic Operation on Engine Volumetric Efficiency and Turbo Lag , 2012 .

[38]  Karl Wygant,et al.  The Analysis of Heat Transfer in Automotive Turbochargers , 2010 .

[39]  Dries Verstraete,et al.  Micro Turbines from the Standpoint of Potential Users , 2005 .