Working fluid selection for a small-scale organic Rankine cycle recovering engine waste heat

被引：10
作者：
Lu, Yiji [1 ]
Roskilly, Anthony Paul [1 ]
Jiang, Long [1 ,2 ]
Yu, Xiaoli [3 ]
机构：
[1] Newcastle Univ, Sir Joseph Swan Ctr Energy Res, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England
[2] Shanghai Jiao Tong Univ, Inst Refrigerat & Cryogen, Shanghai 200240, Peoples R China
[3] Zhejiang Univ, Dept Energy Engn, Hangzhou 310027, Zhejiang, Peoples R China
来源：
PROCEEDINGS OF 1ST INTERNATIONAL CONFERENCE ON SUSTAINABLE ENERGY AND RESOURCE USE IN FOOD CHAINS (ICFES 2017), INCLUDING SYMPOSIUM ON HEAT RECOVERY AND EFFICIENT CONVERSION AND UTILISATION OF WASTE HEAT | 2017年 / 123卷
基金：
英国工程与自然科学研究理事会;
关键词：
Organic Rankine Cycle; scroll expander; coolant and exhaust recovery; Internal Combustion Engine; EXHAUST; CONVERSION; R245FA; SYSTEM; POWER; ORC;
D O I：
10.1016/j.egypro.2017.07.266
中图分类号：
F3 [农业经济];
学科分类号：
0202 ; 020205 ; 1203 ;
摘要：
This paper reports the design and evaluation of a 1 kWe Organic Rankine cycle using different working fluids for engine coolant and exhaust recovery from a 6.5 kW small ICE. Six working fluids have been selected to evaluate and compare the performance of the ORC system. The net power output, thermal efficiency, rotational speed of the scroll expander and condenser load of the ORC system have been studied. Results indicated R134a and R125a have better overall performance than other candidates when the designed inlet temperature of the expander is higher than 150 degrees C. The highest net power and thermal efficiency are respectively 1.2 kW and 13% when R125a is used as the working fluid. R600 and R245fa are desirable to be used when the optimal rotational speed of the scroll expander is about 3000 RPM. The proposed ORC engine coolant and exhaust waste heat recovery system has the advantages of simple system layout, low dumped heat load of condenser, high power output. (C) 2017 The Authors. Published by Elsevier Ltd.
引用
收藏
页码：346 / 352
页数：7
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