| 具有等熵压缩、膨胀过程的回热式布雷顿热泵循环有限时间热力学性能 |
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| 引用本文： | 牛克华,陈林根,倪宁,孙丰瑞.具有等熵压缩、膨胀过程的回热式布雷顿热泵循环有限时间热力学性能[J].海军工程大学学报,1997(1). |
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| 作者姓名： | 牛克华 陈林根 倪宁 孙丰瑞 |
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| 作者单位： | 海军工程学院海军装备修理部
(牛克华)，海军工程学院舰船蒸汽燃气核动力系
(陈林根，倪宁)，海军工程学院舰船蒸汽燃气核动力系(孙丰瑞) |
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| 摘 要： | 研究恒温和变温热源条件下具有等熵压缩、膨胀过程的闭式回热式布雷顿热泵循环有限时间热力学性能,导出循环供热率和供热系数与循环压比间的解析关系,由此可得最佳供热率、供热系数关系。分析中计入了工质与高、低温热源间换热器和回热器的热阻损失。
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| 关 键 词： | 有限时间热力学 布雷顿热泵 回热循环 最优化 |
Finite-Time Thermodynamic Performance Characteristics of Isentropic Closed-Regenerated Brayton Heat Pump Cycles |
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| Niu Kehua Chen Lingen Ni Ning Sun Fengrui.Finite-Time Thermodynamic Performance Characteristics of Isentropic Closed-Regenerated Brayton Heat Pump Cycles[J].Journal of Naval University of Engineering,1997(1). |
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| Authors: | Niu Kehua Chen Lingen Ni Ning Sun Fengrui |
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| Institution: | Niu Kehua Chen Lingen Ni Ning Sun Fengrui |
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| Abstract: | Finite-time thermodynamic performance characteristics of isentropic closed-regenerated Brayton heat pump cycles with constant-and variable-temperature heat reservoirs have been studied in this paper. The relations between heating load and pressure ratio, and between COP and pressure ratio are derived for two cases of heat reservoir conditions, and then the optimal heating load versus COP characteristics are obtained. In the process of analysis the heat resistance losses in the heat exchangers between working fluids and high-and low-temperature heat reservoirs and the regenerator are taken into account. |
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| Keywords: | Finte-time thermodynamics Brayton heat pump Regenerated cycle Optimization |
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