R41跨临界单级压缩带回热器热泵系统研究

白涛; 晏刚; 张倩

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R41跨临界单级压缩带回热器热泵系统研究

更新时间：2025-07-09

- R41跨临界单级压缩带回热器热泵系统研究
- Transcritical R41 Single-Stage Compression Heat Pump Cycle with Internal Heat Exchanger
- 西安交通大学学报 2011年45卷第3期页码：35-39
- 作者机构：
  
  西安交通大学制冷与低温工程研究所,西安,710049
- 作者简介：
- 基金信息：
  
  : 2010-09-03. 作者简介: 白涛(1986-),男,硕士生;晏刚(联系人),男,博士,讲师. 基金项目: 国家科技支撑资助项目(266009BAA17B00)
- DOI：
  中图分类号： TB61
- 网络首发：2011-03-10，
  
  纸质出版：2011
- 稿件说明：
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白涛, 晏刚, 张倩. R41跨临界单级压缩带回热器热泵系统研究[J]. 西安交通大学学报, 2011,45(3):35-39.

Transcritical R41 Single-Stage Compression Heat Pump Cycle with Internal Heat Exchanger[J]. 2011, 45(3): 35-39.
白涛, 晏刚, 张倩. R41跨临界单级压缩带回热器热泵系统研究[J]. 西安交通大学学报, 2011,45(3):35-39. DOI：

Transcritical R41 Single-Stage Compression Heat Pump Cycle with Internal Heat Exchanger[J]. 2011, 45(3): 35-39. DOI：

摘要

建立了跨临界单级压缩带回热器热泵系统的理论模型

并对R41(一氟甲烷)与CO

的循环特性进行了热力性能和火用的分析比较.结果表明:两种工质在常温下进行跨临界循环

R41系统的整体性能优于CO

系统.在选定工况下

R41系统比CO

系统的最优高压侧压力平均降低40.6%以上

系统性能系数平均提高14.2%以上

系统火用效率平均提高14.3%

且R41系统在单位质量制热量和压缩机排气温度方面均优于CO

系统.最后提出了通过减小气体冷却器传热温差、降低节流压差

以及合理利用蒸发器冷量来提高系统火用效率的观点.

Abstract

A theoretical model for the transcritical single-stage compression heat pump cycle with an internal heat exchanger was established

and the performances of the cycles using R41(fluoromethane)and CO

were analyzed respectively. The results show that both of them run in the transcritical ones at normal temperature

and the R41 cycle displays better comprehensive performance than that of the CO

cycle. Compared with the CO

cycle under the specified conditions

the average value of the optimal high side pressure of the R41 cycle decreases by more than 40.6% and the COP increases by over 14.2%

and the second law efficiency increases by 14.3%. Moreover

the greater heating capacity and the lower discharge temperature of the R41 cycle can be obtained. In addition

an idea was put forward to improve the exergy efficiency of system by reducing the tempera

ture difference of gas cooler and the pressure difference of throttling process

and making full use of the cold energy in the evaporator.

关键词

Keywords

references

KRUSE H, RUSSMANN H. The natural fluid nitrous oxide-an option as substitute for low temperature synthetic refrigerants [J]. International Journal of Refrigeration, 2006, 29(5): 799-806.

SARKAR J, BHATTACHARYYA S. Thermodynamic analyses and optimization of a transcritical N2O refrigeration cycle [J]. International Journal of Refrigeration, 2010, 33(1): 33-40.

钱文波, 晏刚, 冯永斌, 等. N2O跨临界喷射/压缩制冷循环性能比较的理论研究 [J]. 西安交通大学学报, 2010, 44(1): 66-70.

QIAN Wenbo, YAN Gang, FENG Yongbin, et al. Theoretical analysis of N2O transcritical compression/ejection refrigeration cycle [J]. Journal of Xi'an Jiaotong University, 2010, 44(1): 66-70.

钱文波, 晏刚, 冯永斌, 等. N2O跨临界双级压缩带膨胀机制冷循环 [J]. 低温工程, 2009(6): 1-6.

QIAN Wenbo, YAN Gan, FENG Yongbin, et al. Study of N2O transcritical two stage compression expander refrigeration cycle [J]. Cryogenics, 2009(6): 1-6.

XIANG Jiangzhou, ZHI Weilian, ZHI Huali, et al. Experimental study on HFC125 critical heat pump [J]. Applied Thermal Engineering, 2007, 27(5/6): 988-993.

CALM J M, HOURAHAN G C. Refrigerant data summary [J]. Engineered Systems, 2001, 18(11): 74-88.

KONDO S, TAKAHASHI A, TOKUHASHI K, et al. RF number as a new index for assessing combustion hazard of flammable gases [J]. Journal of Hazardous Materials, 2002, 93(3): 259-267.

ZHOU Guobing, ZHANG Yufeng, HAO Hong. Numerical modeling of the performance of R22 and R290 in adiabatic capillary tubes considering metastable two-phase region-flow characteristics and parametric analysis of R22 and R290 [J]. Journal of Tianjin University, 2005, 11(4): 255-261.

ROBINSON D M, GROLL E A. Efficiencies of transcritical CO2 cycles with and without an expansion turbine [J]. International Journal of Refrigeration, 1998, 21(7): 577-589.

SARKAR J, BHATTACHARYYA S, RAMGOPAL M. Optimization of a transcritical CO2 heat pump cycle for simultaneous cooling and heating applications [J]. International Journal of Refrigeration, 2004, 27(8): 830-838.

LEMMON E W, HUBER M L, MCLINDEN M O. NIST thermodynamic and transport properties of refrigerants and refrigerant mixtures [DB]∥NIST Standard Reference Database. Gaithersburg, Maryland, USA: NIST, 2007.

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

室外换热器流路布置对热泵空调器的性能影响分析. 西安交通大学学报,2010,44(7):33-37.

回热型氨-水-溴化锂吸收式制冷机的实验研究. 西安交通大学学报,2010,44(7):38-41.

带喷射器的跨临界CO2热泵热水器系统的实验研究. 西安交通大学学报,2009,43(11):51-55.

R22与R410A热泵中蒸发器性能随支路数变化的比较. 西安交通大学学报,2009,43(7):58-62.

脉管制冷机的整机数值模拟. 西安交通大学学报,2009,43(3):1-9.

室温磁制冷活性蓄冷器多孔介质模型及其数值模拟. 西安交通大学学报,2009,43(3):31-35.

一种新型余热回收高温热泵机组的性能研究. 西安交通大学学报,2008,42(10):1309-1312.

丝网回热器中换热性能的优化. 西安交通大学学报,2008,42(9):1070-1075.

基于中心复合设计的平板型脉动热管传热性能研究. 西安交通大学学报,2008,42(9):1102-1106.

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