Theoretical Research on a New Partial Auto-Cascade Heat Pump

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Theoretical Research on a New Partial Auto-Cascade Heat Pump

更新时间：2025-07-09

- Theoretical Research on a New Partial Auto-Cascade Heat Pump
- Vol. 46, Issue 3, Pages: 15-20(2012)
- 作者机构：
  
  西安交通大学能源与动力工程学院,西安,710049
- 作者简介：
- 基金信息：
- DOI：
  CLC： TB65
- Online First：10 March 2012，
  
  Published：2012
- 稿件说明：
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Theoretical Research on a New Partial Auto-Cascade Heat Pump[J]. 2012, 46(3): 15-20.
DOI：

Theoretical Research on a New Partial Auto-Cascade Heat Pump[J]. 2012, 46(3): 15-20. DOI：

摘要

提出了一种新型部分自复叠热泵

通过调节复叠率

该热泵可以控制压缩机的排气温度在安全温度(120 ℃)以内

并且把水加热到生活用热水所要求的温度(55 ℃)

同时使热泵达到最高的能效比(COP).采用Matlab调用NIST制冷剂物性数据库Refprop 7.1编程对该热泵进行理论计算

分析了压缩机排气温度和热泵COP的影响因素

确定了最佳运行状态.理论计算结果表明:采用该新型部分自复叠热泵

可使压缩机排气温度下降30 ℃左右

当工质R22质量分数为0.28、冷凝器出口温度为55 ℃时

调节复叠率为0.717

可使压缩机排气温度降低至120 ℃

系统COP达到2.214.

Abstract

A new partial auto-cascade heat pump(NPACHP)was proposed in this study. By adjusting the auto-cascade ratio

the NPACHP can obtain the safe discharge temperature of the compressor(≤120 ℃)and the required water temperature(55 ℃). The performance of the NPACHP system was calculated with Matlab and refrigerants property database Refprop 7.1 of NIST

and the factors influencing the discharge temperature of the compressor and the COP were analyzed. The best running state of the NPACHP was also determined. The results show that the NPACHP can reduce the discharge temperature of the compressor by about 30 ℃. The compressor discharge temperature can drop to 120 ℃ and the COP can be 2.214 when the auto-cascade ratio of the NPACHP is 0.717

the mass fraction of R22 is 0.28 and the outlet temperature of the condenser is 55 ℃.

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references

MISSIMER D J.Refrigerant conversion of auto refrigerating cascade [J]. International Journal of Refrigeration,1997,20(3):201-207.

GONG M Q, WU J F, LUO E C, et al. Thermodynamic design principle of mixed gases Kleemenko refrigeration cycles[J].Advances in Cryogenic Engineering,2002,47:873-880.

ALEXEEV A,MANTWILL E.Auto-refrigerating cascade and mixed gas Joule-Thomson refrigerator[C]∥Proceeding of the 19th International Cryogenic Engineering Conference. Grenoble, France: Morgan Claypool,2002:335-338.

ALEXEEV A, GOLUBEV D,MANTWILL E.Efficiency of the ARC and mixed gas Joule-Thomson refrigerators[J].Cryocoolers,2003,12:595-601.

NAYAK H G,VENKATARATHNAM G.Performance of an auto refrigerant cascade refrigerator operating in liquid refrigerant supply(LRS)mode with different cascade heat exchangers[J].Cryogenics,2010,50:720-727.

张华,方建良,路向阳.两级自动复叠制冷系统的实验研究[J].制冷空调与电力机械,2004,25(96):14-15,32.

ZHANG Hua, FANG Jianliang, LU Xiangyang. Experimental study on a two-stage auto-cascade refrigeration system[J]. Refrigeration Air Conditioning Electric Power Machinery,2004,25(96):14-15,32.

陶锴,晏刚,张敏, 等.具有中间压力调节功能的新型自复叠热泵[J]. 西安交通大学学报,2010,44(9):43-47.

TAO Kai,YAN Gang,ZHANG Min,et al. A novel auto-cascade heat pump with intermediate pressure adjustment[J].Journal of Xi'an Jiaotong University,2010,44(9):43-47.

吴啸.自复叠热泵换热过程的实验研究[D].广州:华南理工大学,2010.

任挪颖,颜俊,钱伟,等.自复叠制冷循环的研究状况[J].制冷与空调,2006,6(6):5-8.

REN Nuoying,YAN Jun,QIAN Wei, et al.The research status of auto-cascade refrigeration system[J]. Refrigeration and Air-Conditioning,2006,6(6):5-8.

徐卫荣,杜垲.自然复叠式热泵循环系统热力计算与分析[J].低温工程,2009,5:31-36.

XU Weirong, DU Kai. Thermodynamic calculation and analysis on auto-cascade heat pump system[J]. Cryogenics,2009,5:31-36.

杜垲,徐卫荣. R134a/R123自然复叠式热泵系统浓度配比分析[J].制冷学报,2009,30(2):33-38.

DU Kai,XU Weirong. Concentration optimization of R134a/R123 in auto-cascade heat pump systems[J]. Journal of Refrigeration,2009,30(2):33-38.

刘金平,朱海明,刘雪峰.基于Aspen Plus的自复叠热泵模拟[J].制冷,2010,29(1):1-8.

LIU Jinping,ZHU Haiming,LIU Xuefeng.The simulation of auto-cascade heat pump system based on aspen plus[J]. Refrigeration,2010,29(1):1-8.

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