A theoretical study on the performance of a scroll expander in an organic Rankine cycle with hydrofluoroolefins (HFOs) in place of R245fa

被引:27
作者
Giuffrida, Antonio [1 ]
机构
[1] Politecn Milan, Dipartimento Energia, Via R Lambruschini 4, I-20156 Milan, Italy
关键词
Organic Rankine cycle; R1234ze(Z); R1224yd(Z); R1233zd(E); R1336mzz(Z); Scroll expander; EQUATION-OF-STATE; LOW-GRADE HEAT; WORKING FLUID; THERMODYNAMIC PROPERTIES; POWER-GENERATION; VAPOR-PRESSURE; ORC; SYSTEM; REPLACEMENT; HCFO-1233ZD-E;
D O I
10.1016/j.energy.2018.07.146
中图分类号
O414.1 [热力学];
学科分类号
摘要
Global warming is the leading environmental concern of the 21st century, promoting active areas of research as the development of low global warming potential (GWP) refrigerants such as hydro-fluoroolefins (HFOs). This work investigates the performance of a 2 kW hermetic scroll expander by means of a semi empirical model when replacing the original working fluid (R245fa) with low-GWP fluids. Calculation results of micro organic Rankine cycle (ORC) systems are presented, after setting the power output from the expander, and the relation between cycle efficiency and maximum cycle temperature is reported for seven selected fluids. In detail, almost equal performance of R1234ze(Z) compared to R245fa and slightly better performance when using R1224yd(Z) or R1233zd(E) are achieved, even though a modest increase of the fluid temperature at the expander inlet is necessary for the last two fluids. In case of lower heat sources, R1234yf, R1243zf and R1234ze(E) are indicated as working fluids and mixtures of HFOs are also considered to extend the operation range of the expander. On the other hand, limited to this case study, R1336mzz(Z) does not seem to be an interesting fluid, because of the calculated higher temperature at the expander inlet and lower expander efficiency. (C) 2018 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1172 / 1180
页数:9
相关论文
共 48 条
[1]  
Akasaka R, 2018, J CHEM ENG DATA
[2]  
Akasaka R, 2017, EUR C THERM PROP SEP
[3]  
Akasaka R, 2016, 8 AS C REFR AIR COND
[4]   A Fundamental Equation of State for 1,1,1,3,3-Pentafluoropropane (R-245fa) [J].
Akasaka, Ryo ;
Zhou, Yong ;
Lemmon, Eric W. .
JOURNAL OF PHYSICAL AND CHEMICAL REFERENCE DATA, 2015, 44 (01)
[5]  
[Anonymous], 1949, T AM SOC MECH ENG
[6]  
[Anonymous], 1946, T AM SOC MECH ENG
[7]   A review of working fluid and expander selections for organic Rankine cycle [J].
Bao, Junjiang ;
Zhao, Li .
RENEWABLE & SUSTAINABLE ENERGY REVIEWS, 2013, 24 :325-342
[8]   Experimental performance evaluation of a multi-diaphragm pump of a micro-ORC system [J].
Carraro, Gianluca ;
Pallis, Platon ;
Leontaritis, Aris D. ;
Karellas, Sotirios ;
Vourliotis, Panagiotis ;
Rech, Sergio ;
Lazzaretto, Andrea .
4TH INTERNATIONAL SEMINAR ON ORC POWER SYSTEMS, 2017, 129 :1018-1025
[9]   A review of thermodynamic cycles and working fluids for the conversion of low-grade heat [J].
Chen, Huijuan ;
Goswami, D. Yogi ;
Stefanakos, Elias K. .
RENEWABLE & SUSTAINABLE ENERGY REVIEWS, 2010, 14 (09) :3059-3067
[10]   Organic Rankine Cycle Power Systems: From the Concept to Current Technology, Applications, and an Outlook to the Future [J].
Colonna, Piero ;
Casati, Emiliano ;
Trapp, Carsten ;
Mathijssen, Tiemo ;
Larjola, Jaakko ;
Turunen-Saaresti, Teemu ;
Uusitalo, Antti .
JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER-TRANSACTIONS OF THE ASME, 2015, 137 (10)