TY - JOUR
T1 - Performance of regenerative organic rankine cycle over whole operating range of diesel engine
AU - Zhang, Hongguang
AU - Zhang, Jian
AU - Yang, Kai
AU - Zhao, Guangyao
AU - Liu, Hao
AU - Yao, Baofeng
PY - 2014/8/25
Y1 - 2014/8/25
N2 - A regenerative organic Rankine cycle (RORC) system is designed to recover the exhaust heat of diesel engine. The organic working fluids under investigation are the pure fluid R245fa and the zeotropic mixture Mix (isopentane and R245fa mixed in 7/3 mole fraction). The influence of intermediate pressure (pressures at which the steam is extracted from the expander) on the performance parameters of the RORC system, such as the net power output, the thermal efficiency, and the mass flow rate of the working fluid, are analyzed, and on the basis of the analysis results, the intermediate pressure is set to 1.15 MPa for the RORC system using Mix and 1.2 MPa for the RORC system using R245fa. Then the performance of the RORC system using the two different working fluids is analyzed over the whole operating range of the diesel engine, respectively. The calculation results show that Mix is the better selection for the RORC system than R245fa.
AB - A regenerative organic Rankine cycle (RORC) system is designed to recover the exhaust heat of diesel engine. The organic working fluids under investigation are the pure fluid R245fa and the zeotropic mixture Mix (isopentane and R245fa mixed in 7/3 mole fraction). The influence of intermediate pressure (pressures at which the steam is extracted from the expander) on the performance parameters of the RORC system, such as the net power output, the thermal efficiency, and the mass flow rate of the working fluid, are analyzed, and on the basis of the analysis results, the intermediate pressure is set to 1.15 MPa for the RORC system using Mix and 1.2 MPa for the RORC system using R245fa. Then the performance of the RORC system using the two different working fluids is analyzed over the whole operating range of the diesel engine, respectively. The calculation results show that Mix is the better selection for the RORC system than R245fa.
KW - Diesel engine
KW - Organic Rankine cycle
KW - Regeneration
KW - Waste heat recovery
KW - Whole operating range
KW - Zeotropic mixture
UR - http://www.scopus.com/inward/record.url?scp=84906914965&partnerID=8YFLogxK
U2 - 10.6041/j.issn.1000-1298.2014.08.004
DO - 10.6041/j.issn.1000-1298.2014.08.004
M3 - Article
AN - SCOPUS:84906914965
SN - 1000-1298
VL - 45
SP - 19
EP - 26
JO - Nongye Jixie Xuebao/Transactions of the Chinese Society for Agricultural Machinery
JF - Nongye Jixie Xuebao/Transactions of the Chinese Society for Agricultural Machinery
IS - 8
ER -