小型有机朗肯循环系统中工质泵的效率

doi:10.16085/j.issn.1000-6613.2016.04.010

化工进展 ›› 2016, Vol. 35 ›› Issue (04): 1027-1032.DOI: 10.16085/j.issn.1000-6613.2016.04.010

小型有机朗肯循环系统中工质泵的效率

叶佳琦, 赵力, 邓帅, 王晓东, 苏文

天津大学中低温热能高效利用教育部重点实验室, 天津 300072

收稿日期:2015-10-28 修回日期:2015-11-16 出版日期:2016-04-05 发布日期:2016-04-05
通讯作者: 赵力,博士,教授,主要研究方向为太阳能热利用.E-mail:jons@tju.edu.cn.
作者简介:叶佳琦(1990-),男,硕士研究生,主要研究方向为新型节能技术的利用.
基金资助:
国家自然科学基金面上项目(51476110).

Efficiency of working fluid pump in a small-scale organic Rankine cycle system

YE Jiaqi, ZHAO Li, DENG Shuai, WANG Xiaodong, SU Wen

Key Laboratory of Efficient Utilization of Low and Medium Grade Energy of Ministry of Education, Tianjin University, Tianjin 300072, China

Received:2015-10-28 Revised:2015-11-16 Online:2016-04-05 Published:2016-04-05

摘要/Abstract

摘要： 对小型有机朗肯循环系统中工质泵的性能进行了实验研究,建立了应用R245fa工质的小型工质泵性能研究试验台,针对容积型工质泵的效率展开实验研究,对工质泵出口压力、进出口压差和系统质量流量分别进行控制,获得了工质泵等熵效率随上述3个变量的变化曲线.实验结果表明,在蒸发温度75℃、冷凝温度11℃条件下,有机朗肯循环系统中工质泵的等熵效率范围为15%~47%,随着系统质量流量的增大和工质泵进出口压差的增加,工质泵等熵效率升高,且受到系统质量流量的影响较大.实验证实了有机朗肯循环系统中工质泵的实际运行效率比以往模拟、理论计算研究中应用的工程经验值低.依据本研究实验结果,工质泵等熵效率宜取平均值30%;基于理论循环等熵过程的分析,泵功占膨胀机输出功的比例约为8%,而实际过程中,综合考虑泵的效率、电机效率、膨胀机机械效率,其比值可达到12%以上.

关键词: 泵, 有机朗肯循环, 等熵效率, 有机工质, 焓, 熵

Abstract: The isentropic efficiency of the working fluid pump in a small-scale power system of organic Rankine cycle (ORC) was experimentally studied under designed variable conditions. The selection and principle of the working fluid pump were focused. A small-scale power system of ORC using R245fa as working fluid was established. The volume type working fluid pump was chosen. The pressure difference of pump inlet and outlet pressure and the mass flowrate of system were controlled respectively. The experimental results showed that, the ORC system working fluid pump's isentropic efficiency was about 15% to 47% under the condition that evaporation temperature is 75℃ and condensing temperature is 11℃. The pressure difference between the inlet and outlet of the working fluid pump increased with the increase of mass flowrate of system. The isentropic efficiency increased, and largerly affected by the mass flowrate. The experiments confirmed that the estimation efficiency of the working fluid pump in the ORC system is much lower than that of the previously value used in simulation, calculation and industrial applications. The experimental working fluid pump isentropic efficiency of the average value of 30% is more appropriate. From isentropic aspect, the ratio of pump power for expander to output power should be 8%. For the actual process, the ratio should be greater than 12% by considering the efficiency of the pump and the motor.

Key words: pump, rganic Rankine cycle, isentropic efficiency, organic working fluid, enthalpy, entropy

中图分类号:

TK11⁺4

叶佳琦, 赵力, 邓帅, 王晓东, 苏文. 小型有机朗肯循环系统中工质泵的效率[J]. 化工进展, 2016, 35(04): 1027-1032.

YE Jiaqi, ZHAO Li, DENG Shuai, WANG Xiaodong, SU Wen. Efficiency of working fluid pump in a small-scale organic Rankine cycle system[J]. Chemical Industry and Engineering Progree, 2016, 35(04): 1027-1032.

参考文献

[1] BAO J,ZHAO L. A review of working fluid and expander selections for organic Rankine cycle[J]. Renewable & Sustainable Energy Reviews,2013,24(10):325-342.
[2] QUOILIN S,LEMORT V,LEBRUN J. Experimental study and modeling of an organic rankine cycle using scroll expander[J]. Applied Energy,2010,87(4):1260-1268.
[3] BORSUKIEWICZ-GOZDUR A. Pumping work in the organic Rankine cycle[J]. Applied Thermal Engineering,2013,51(1/2):781-786.
[4] FORD G. CSP:bright future for linear fresnel technology?[J]. Renewable Energy Focus,2008,9(8):48-49,51.
[5] VELEZ F,SEGOVIAJ J,MARTIN M C,et al. A technical,economical and market review of organic Rankine cycles for the conversion of low-grade heat for power generation[J]. General Information,2012,16(6):4175-4189.
[6] 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.
[7] REID A D. Low temperature power generation using HFE-7000 in a Rankine cycle[D]. Master thesis San Diego:San Diego State University,2010.
[8] QUOILIN S. Sustainable energy conversion through the use of organic rankine cycle for waste heat recovery and solar applications[D]. Liege:University of Liege,2011.
[9] BALA E J,O'CALLAGHAN P W,PROBERT S D. Influence of organic working fluids on the performance of a positive-displacement pump with sliding vanes[J]. Applied Energy,1985,20(2):153-159.
[10] MELOTTE N. Development and optimization of organic Rankine cycle control strategies[D]. Liege:University of Liege,2012.
[11] TCHANCHE B F,PAPADAKIS G,LAMBRINOS G,et al. Fluid selection for a low-temperature solar organic Rankine cycle[J]. Applied Thermal Engineering,2009,29(11/12):2468-2476.
[12] DELGADO-TORRES A M,GARCIA-RODRIGUEZ L. Analysis and optimization of the low-temperature solar organic Rankine cycle (ORC)[J]. Energy Conversion & Management,2010,51(12):2846-2856.
[13] 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.
[14] 韩中合,杜燕,王智. 有机朗肯循环低温余热回收系统的工质选择[J]. 化工进展,2014,33(9):2279-2285.

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小型有机朗肯循环系统中工质泵的效率

Efficiency of working fluid pump in a small-scale organic Rankine cycle system

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