Parametric optimization and exergetic analysis comparison of subcritical and supercritical organic Rankine cycle (ORC) for biogas fuelled combined heat and power (CHP) engine exhaust gas waste heat

In this paper, a subcritical and supercritical organic Rankine cycle (ORC) are designed to recover exhaust gas waste heat of biogas fuelled combined heat and power (CHP) engine. The CHP engine is located in Belgium and uses biogas as fuel which is produced from the digestion of domestic wastes by anaerobic digestion. R245fa is selected as working fluid. First, the system parameters as net power, mass flow rate, pumps total power consumption, total evaporator exergy inlet, thermal efficiency and exergy efficiency are improved by changing turbine inlet temperature and pressure. After which second low analysis of the overall system and system components are determined for the best performed subcritical and supercritical cycles. Compared with subcritical ORC, the supercritical ORC has shown better performance. The best performed cycle net power, thermal efficiency and exergy efficiency are evaluated as 79.23 KW, 15.51% and 27.20% for subcritical ORC and 81.52 kW, 15.93% and 27.76% for supercritical ORC, respectively.

[1]  Andreas Schuster,et al.  Efficiency optimization potential in supercritical Organic Rankine Cycles , 2010 .

[2]  Christopher J. Koroneos,et al.  Exergy analysis of renewable energy sources , 2003 .

[3]  Guo Tao,et al.  Performance comparison and parametric optimization of subcritical Organic Rankine Cycle (ORC) and transcritical power cycle system for low-temperature geothermal power generation , 2011 .

[4]  Feridun Hamdullahpur,et al.  Exergy analysis of an integrated solid oxide fuel cell and organic Rankine cycle for cooling, heating and power production , 2010 .

[5]  Jinliang Xu,et al.  A new design method for Organic Rankine Cycles with constraint of inlet and outlet heat carrier fluid temperatures coupling with the heat source , 2012 .

[6]  Gequn Shu,et al.  Fluids and parameters optimization for the organic Rankine cycles (ORCs) used in exhaust heat recovery of Internal Combustion Engine (ICE) , 2012 .

[7]  Y. Çengel,et al.  Thermodynamics : An Engineering Approach , 1989 .

[8]  A. Demirbas,et al.  Potential applications of renewable energy sources, biomass combustion problems in boiler power systems and combustion related environmental issues , 2005 .

[9]  K. Srinivasan,et al.  Analysis of exhaust waste heat recovery from a dual fuel low temperature combustion engine using an Organic Rankine Cycle , 2010 .

[10]  Angelo Algieri,et al.  Comparative energetic analysis of high-temperature subcritical and transcritical Organic Rankine Cycle (ORC). A biomass application in the Sibari district , 2012 .

[11]  J. M. Owens,et al.  Renewable methane from anaerobic digestion of biomass , 1997 .

[12]  Brian Ó Gallachóir,et al.  Fossil fuel and CO2 emissions savings on a high renewable electricity system: A single year case study for Ireland , 2015 .

[13]  G. Shu,et al.  Theoretical research on working fluid selection for a high-temperature regenerative transcritical dual-loop engine organic Rankine cycle , 2014 .

[14]  Benedikt Kölsch,et al.  Utilisation of diesel engine waste heat by Organic Rankine Cycle , 2015 .

[15]  F. Barbir.  PEM electrolysis for production of hydrogen from renewable energy sources , 2005 .

[16]  Andreas Schuster,et al.  Energetic and economic investigation of Organic Rankine Cycle applications , 2009 .

[17]  Brian Vad Mathiesen,et al.  Smart Energy Systems for coherent 100% renewable energy and transport solutions , 2015 .

[18]  W. Worek,et al.  Optimum design criteria for an Organic Rankine cycle using low-temperature geothermal heat sources , 2007 .

[19]  İlker Mert,et al.  A statistical analysis of wind speed data using Burr, generalized gamma, and Weibull distributions in Antakya, Turkey , 2015 .

[20]  Olav Bolland,et al.  Working fluids for low-temperature heat source , 2010 .

[21]  Mehmet Kanoglu,et al.  Exergetic and thermoeconomic analyses of diesel engine powered cogeneration: Part 1 – Formulations , 2009 .

[22]  I. Dincer,et al.  Thermoeconomic optimization of three trigeneration systems using organic Rankine cycles: Part II – Applications , 2013 .

[23]  Takahisa Yamamoto,et al.  Design and testing of the Organic Rankine Cycle , 2001 .

[24]  S. Riffat,et al.  Experimental investigation of a biomass-fired ORC-based micro-CHP for domestic applications , 2012 .

[25]  F. Geels.  Regime Resistance against Low-Carbon Transitions: Introducing Politics and Power into the Multi-Level Perspective , 2014 .

[26]  Maogang He,et al.  A combined thermodynamic cycle used for waste heat recovery of internal combustion engine , 2011 .

[27]  Markus Preißinger,et al.  Low grade waste heat recovery with subcritical and supercritical Organic Rankine Cycle based on natural refrigerants and their binary mixtures , 2015 .

[28]  M. J. Moran,et al.  Thermal design and optimization , 1995 .

[29]  Samveg Saxena,et al.  Experimental evaluation of strategies to increase the operating range of a biogas-fueled HCCI engine for power generation , 2012 .

[30]  Zhaolin Gu,et al.  Optimization of cyclic parameters of a supercritical cycle for geothermal power generation , 2001 .

[31]  Sylvain Quoilin.  Experimental study and modeling of a low temperature Rankine Cycle for small scale cogeneration , 2007 .

[32]  Wojciech M. Budzianowski,et al.  Sustainable biogas energy in Poland: Prospects and challenges , 2012 .