Performance analysis of a multistage centrifugal pump used in an organic Rankine cycle (ORC) system under various condensation conditions
Performance analysis of a multistage centrifugal pump used in an organic Rankine cycle (ORC) system under various condensation conditions
复制标题
有机朗肯循环（ORC）系统中使用的多级离心泵在不同冷凝条件下的性能分析
DOI：
10.1007/s11630-019-1069-9
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发表时间：
2019-07
影响因子：
2.5
通讯作者：
Gao Jianbing
中科院分区：
文献类型：
--
作者：
Yang Yuxin;Zhang Hongguang;Tian Guohong;Xu Yonghong;Wang Chongyao;Gao Jianbing
在有机朗肯循环（ORC）系统中，工作流体泵对系统性能起着重要作用。研究了多级离心泵在不同转速和冷凝条件下的运行特性。为了评估ORC系统对泵性能的影响，进行了实验研究，特别关注实际净输出功率、热效率和回功比（BWR）。结果表明，泵转速的增加导致质量流量的增加，出口压力的工作范围扩大。质量流量随出口压力从0.22 ~ 2.41 MPa的增加呈非线性减小；当泵转速为1160 ~ 2900 r/min时，泵的电耗变化在151.54 ~ 2409.34 W之间，机械效率变化在7.90% ~ 61.88%之间。此外，在较低的泵比转速下，ORC系统获得了更高的热效率，这表明超低比转速泵是ORC系统的理想选择。结果还表明，随着泵转速的增加，凝结条件对泵性能的影响减小，沸水比对凝结条件相对敏感，特别是在泵转速较低时。
n an organic Rankine cycle (ORC) system, the working fluid pump plays an important role in the system performance. This paper focused on the operating characteristics of a multistage centrifugal pump at various speeds and condensation conditions. The experimental investigation was carried out to assess the influence of the performance of the pump by the ORC system with special attention to actual net power output, thermal efficiency as well as back work ratio (BWR). The results showed that an increase in the pump speed led to an increase in the mass flow rate and expand in the operating range of the outlet pressure. The mass flow rate decreased nonlinearly with the increase of the outlet pressure from 0.22 to 2.41 MPa; the electric power consumption changed between 151.54 and 2409.34 W and the mechanical efficiency of the pump changed from 7.90% to 61.88% when the pump speed varied from 1160 to 2900 r/min. Furthermore, at lower pump specific speed the ORC system achieved higher thermal efficiency, which suggested that an ultra-low specific speed pump was a promising candidate for an ORC system. The results also suggested that the effects of condensation conditions on the pump performance decreased with the pump speed increasing and BWR was relatively sensitive to the condensation conditions, especially at low pump speed.
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DOI：
10.1016/j.egypro.2014.01.140
发表时间：
2014
期刊：
Energy Procedia
影响因子：
--
作者：
G. Cammarata;L. Cammarata;G. Petrone
通讯作者：
G. Cammarata;L. Cammarata;G. Petrone
检查膨胀机在可变有机朗肯循环运行中留下的损失
影响因子：
10.4
作者：
Pei Gang;Li Yunzhu;Wang Dongyue;Ji Jie
通讯作者：
Ji Jie
DOI：
--
发表时间：
2008
期刊：
--
影响因子：
--
作者：
Cynthia Lin
通讯作者：
Cynthia Lin
影响因子：
8.7
作者：
G. Qiu
通讯作者：
G. Qiu
影响因子：
10.4
作者：
B. Lei;Jingfu Wang;Yu-ting Wu;Chong-fang Ma;W. Wang;Lei Zhang;Jingya Li
通讯作者：
B. Lei;Jingfu Wang;Yu-ting Wu;Chong-fang Ma;W. Wang;Lei Zhang;Jingya Li