该文搭建了使用R410A制冷剂涡旋式压缩机的高能效空气源燃气热泵实验平台。在实验台上进行不同进水温度tw,in（8.8~18.8 ℃）、发动机转速Neng（1400~2400 r/min）、环境温度Tamb（24~43 ℃）、进水流量Gw（9.16~18.32 m3/h）影响下的制冷特性研究,得到制冷量（Qc）、耗气功率（Pgas）、压缩机功率（Pcomp）、一次能源利用率（RPER）、总一次能源利用率（RPER,all）及性能系数（RCOP）的变化规律。结果表明,RPER受RCOP与发动机热效率ηeng的双重影响,制冷运行时RPER、RPER,all与ηeng分别处于0.935~1.224、1.388~1.720与27.56%~35.25%之间。由不确定度分析可得Qc、Pgas和RPER的相对不确定度分别为5.61%、1.00%和5.70%,表明系统测试结果稳定可靠。
Abstract
In this paper, an energy-efficient air source gas engine-driven heat pump (GHP) experimental platform was built innovatively based on the use of scroll compressors with R410A. The cooling performance characteristics of the GHP system were investigated. The changes of cooling capacity (Qc), gas consumption power (Pgas), compressor power (Pcomp), primary energy ratio (RPER), total primary energy ratio (RPER,all) and coefficient of performance (RCOP) were obtained under the conditions of a wide range of water inlet temperatures tw,in (8.8-18.8 ℃), engine speeds Neng (1400-2400 r/min), ambient air temperatures Tamb (24-43 ℃) and water inlet flow rates Gw (9.16-18.32 m3/h). The results show that RPER is affected by both RCOP and engine thermal efficiency ηeng. In cooling operation, RPER, RPER,all and ηeng are between 0.935-1.224, 1.388-1.720 and 27.56%-35.25%, respectively. According to the uncertainty analysis, the maximum relative uncertainties of Qc, Pgas and RPER are 5.61%, 1.00% and 5.70% respectively, indicating that the test results are stable and reliable.
关键词
制冷 /
热回收 /
性能系数 /
一次能源利用率 /
燃气热泵 /
分布式能源
Key words
cooling /
heat recovery /
coefficient of performance /
primary energy ratio /
gas engine-driven heat pump /
distributed energy resources
{{custom_sec.title}}
{{custom_sec.title}}
{{custom_sec.content}}
参考文献
[1] ROSELLI C, MARRASSO E, SASSO M.Gas engine-driven heat pumps for small-scale applications: state-of-the-art and future perspectives[J]. Energies, 2021, 14(16): 4845.
[2] ELGENDY E, SCHMIDT J, KHALIL A, et al.Modelling and validation of a gas engine heat pump working with R410A for cooling applications[J]. Applied energy, 2011, 88(12): 4980-4988.
[3] ZHANG W, WANG T, ZHENG S L, et al.Experimental study of the gas engine driven heat pump with engine heat recovery[J]. Mathematical problems in engineering, 2015, 2015(3): 1-10.
[4] ELGENDY E, SCHMIDT J, KHALIL A, et al.Performance of a gas engine heat pump(GEHP) using R410A for heating and cooling applications[J]. Energy, 2010, 35(12): 4941-4948.
[5] 逯红梅, 秦朝葵, 詹友超, 等. 燃气热泵结合除湿转轮的温湿度独立控制空调系统[J]. 暖通空调, 2009, 39(5): 149-151.
LU H M, QIN C K, ZHAN Y C, et al.Temperature and humidity independent control air conditioning system combined gas heat pump and rotary dehumidifier[J]. Journal of HVAC, 2009, 39(5): 149-151.
[6] GUNGOR A, ERBAY Z, HEPBASLI A.Exergetic analysis and evaluation of a new application of gas engine heat pumps(GEHPs) for food drying processes[J]. Applied energy, 2011, 88(3): 882-891.
[7] LIU F G, TIAN Z Y, MA Z X, et al.Experimental research on the property of water source gas engine-driven heat pump system with chilled and hot water in summer[J]. Applied thermal engineering, 2020, 165: 114532.
[8] YANG Z, WANG W B, WU X.Thermal modeling and operating tests for a gas-engine driven heat pump working as a water heater in winter[J]. Energy and buildings, 2013, 58: 219-226.
[9] 秦朝葵, 张扬. 燃气热泵在夏热冬冷地区的经济性分析[J]. 城市燃气, 2015(2): 4-9.
QIN C K, ZHANG Y.Economic analysis of gas heat pump in hot-summer and cold-winter area[J]. Chengshi ranqi, 2015(2): 4-9.
[10] ZHANG Q, YANG Z, LI N, et al.A novel solar photovoltaic/thermal assisted gas engine driven energy storage heat pump system (SESGEHPs) and its performance analysis[J]. Energy conversion and management, 2019, 184: 301-314.
[11] 王明涛, 杨昭, 陈轶光. 燃气机热泵余热利用理论分析[J]. 农业机械学报, 2011, 42(1): 35-38.
WANG M T, YANG Z, CHEN Y G.Recovery of waste heat of gas engine heat pump[J]. Transactions of the Chinese Society for Agricultural Machinery, 2011, 42(1): 35-38.
[12] LIU H W, ZHOU Q S, ZHAO H B.Experimental study on cooling performance and energy saving of gas engine-driven heat pump system with evaporative condenser[J]. Energy conversion and management, 2016, 123: 200-208.
[13] YANG Z, CHENG H, WU X, et al.Research on improving energy efficiency and the annual distributing structure in electricity and gas consumption by extending use of GEHP[J]. Energy policy, 2011, 39(9): 5192-5202.
[14] 张薇, 彭学院, 尤利超, 等. 余热直接利用型燃气机热泵变转速特性实验研究[J]. 西安交通大学学报, 2013, 47(8): 141-144.
ZHANG W, PENG X Y, YOU L C, et al.Experimental on waste heat utilization type heat pump driven by gas engine at varied speeds[J]. Journal of Xi’an Jiaotong University, 2013, 47(8): 141-144.
[15] JI W X, CAI L, MENG Q K, et al.Experimental research and performance study of a coaxial hybrid-power gas engine heat pump system based on LiFePO4 battery[J]. Energy and buildings, 2016, 113: 1-8.
基金
国家重点研发计划（2021YFE0112500）
PDF(1607 KB)
