学术
摘 要:
为了从理论上研究系统在环境温度改变时的运行特性，需要耦合系统各个部件的数学模型来确定系统的运行性能．在采用已有数据的基础上，对系统部件的运行参数进行拟合，建立起一组表示部件特性的经验关联式，进而联立求解，得到系统变工况下的运行特性．结果表明：在夏季温度为33～35℃、冬季温度为0～5℃时系统的运行性能最佳；当环境温度向两端偏离最佳温度区域时，都将导致有效燃气消耗率增加，一次能源利用率降低；制热工况一次能源利用率高于制冷工况，其最大值约是制冷工况最大值的1．7倍．[著者文摘]
文章出处:
《西安交通大学学报》-2007年41卷1期 -28-31页
栏目信息:
分 类 号:
文献标识码:
A
文章编号:
0253-987X（2007）01-0028-04
Performance Analysis of a Household Gas Engine Driven Heat Pump at Varied Environment Temperature
Deng Jianqiang, Li Wenliang, Zhang Zaoxiao （School of Energy and Power Engineering, Xi＇an Jiaotong University, Xi＇an 710049, China）
Abstract:
In order to analyze system performance, empirical equations were fitted with the operating performance curves of the system parts. By coupling the equations, the relationships of primary energy ratio （PER） and effective gas consume rate （EGCR） with environment temperature were obtained. The result shows that the system had its optimum performance at 33-35 ℃ in summer and 0-5 ℃ in winter. When the environment temperature diverged from the appropriate temperature, the EGCR of the system would increase and the PER of the system would decrease. The system PER in heating conditions is higher than that in refrigerating conditions. Its maximum system PER in heating condition is about 1.7 times that in refrigerating condition.[著者文摘]
Key words:
gas engine driven heat pump; environment temperature; primary energy ratio; effec-tive gas consume rate
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