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Study on the Organic Rankine-EVI (with efficiency by secondary suction) Vapor Compression Refrigeration Cycle System Powered by Solar Energy
Received date: 2014-07-02
Revised date: 2014-08-28
Online published: 2014-10-30
To utilize solar energy efficiently, a thermodynamic model of Rankine-EVI (with efficiency by secondary suction) Vapor Compression refrigeration system was established. Under the proposed working conditions, working fluid R236fa, R245fa, RC318 and R141b were selected and compared by investigating the effects of generating temperature, condensation temperature, condensing temperature, evaporation temperature, expander isentropic expansion efficiency and compressor isentropic compression efficiency on the system performance to identify suitable working fluid which may yield high system efficiencies. The calculated results showed that R141b was the most appropriate working fluid for the system. Condensation temperature and condensing temperature had important influences on system performance. The COPs reached 0.2528 when the generating temperature was 85oC, the condensation temperature was 40oC, the condensing temperature was 40oC and the evaporation temperature was −15oC. The application of EVI technology has a great advantage in north areas with rich solar energy and low ambient temperature.
Key words： solar energy; Rankine-EVI; Vapor Compression; refrigeration
SHAO Zhen-hua , YU Wen-yuan , CHEN Xiao-jiao , Dong Ru-xi . Study on the Organic Rankine-EVI (with efficiency by secondary suction) Vapor Compression Refrigeration Cycle System Powered by Solar Energy[J]. Advances in New and Renewable Energy, 2014 , 2(5) : 373 -379 . DOI: 10.3969/j.issn.2095-560X.2014.05.008
[1] Wei M S, Fang J L, Ma C C, et al. Waste heat recovery from heavy-duty diesel engine exhaust gases by medium temperature ORC system[J]. Science China-technological Science, 2011, 54(10): 2746-2753.
[2] Hung T C, Wang S K, Kuo C H, et al. Tsai A study of organic working fluids on system efficiency of an ORC using low-grade energy sources[J]. Energy, 2010, 35(3): 1403-1411.
[3] Quoilin S, Orosz M, Hemond H, et al. Performance and design optimization of a low-cost solar organic Rankine cycle for remote power generation[J]. Solar Energy, 2011, 85(5): 955-966.
[4] 韩中合, 叶依林, 刘赟. 不同工质对太阳能有机朗肯循环系统性能的影响[J]. 动力工程学报, 2012, 32(3): 229-234.
[5] 王辉涛, 王华, 龙恩深, 等. 低温废弃余热驱动有机朗肯循环的优化[J]. 太阳能学报, 2013, 34(7): 1183-1188.
[6] 刘怀亮, 何雅玲, 程泽东, 崔福庆. 槽式太阳能有机朗肯热发电系统模拟[J]. 工程热物理学报, 2010, 31 (10): 1631-1634.
[7] Wang M, Wang, J F, Zhao Y Z, et al. Thermodynamic analysis and optimization of a solar-driven regenerative organic Rankine cycle (ORC) based on flat-plate solar collectors[J]. Applied Thermal Engineering, 2013, 50(1): 816-825.
[8] Cao F, Wang, K, Wang S G, et al. Investigation of the heat pump water heater using economizer vapor injection system and mixture of R22/R600a[J]. International Journal of Refrigeration, 2009, 32(3): 509-514.
[9] 王文毅, 毛晓倩, 胡斌, 等. 中间补气量对经济器热泵系统性能的影响[J]. 制冷学报, 2013, 34(4): 40-46.
[10] 杨丽, 王文, 白云飞. 经济器对压缩制冷循环影响分析[J]. 制冷学报, 2010, 31(4): 35-38.
[11] Wang X D, Zhao L, Wang J L, et al. Performance evaluation of a low-temperature solar Rankine cycle system utilizing R245fa[J]. Solar Energy, 2010, 84(3): 353-364.
[12] 王令宝, 卜宪标, 李华山, 等. 重型卡车朗肯−朗肯制冷系统热力学研究[J]. 新能源进展, 2014, 2(2): 76-80.
[13] 卜宪标, 李华山, 王令宝. 船舶余热驱动的有机朗肯−蒸汽压缩空调性能分析与工质选择[J]. 大连海事大学学报, 2013, 39(4): 99-106.
[14] Li M Q, Wang J F, He W F, et al. Construction and preliminary test of a low-temperature regenerative Organic Rankine Cycle (ORC) using R123[J]. Renewable Energy, 2013, 57: 216-222.
[15] Wang M, Wang J F, Zhao Y Z, et al. Thermodynamic analysis and optimization of a solar-driven regenerative organic Rankine cycle (ORC) based on flat-plate solar collectors[J]. Applied Thermal Engineering, 2013, 50(1): 816-825.
[16] Li H S, Bu X B, Wang L B, et al. Hydrocarbon working fluids for a Rankine cycle powered vapor compression refrigeration system using low-grade thermal energy[J]. Energy and Buildings, 2013, 65: 167-172.
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