| 纸机供汽系统热泵能量效率与 效率分析比较 |
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| 引用本文： | 乔丽洁,陈海峰,史诺.纸机供汽系统热泵能量效率与 效率分析比较[J].西北轻工业学院学报,2009,27(3):93-97. |
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| 作者姓名： | 乔丽洁 陈海峰 史诺 |
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| 作者单位： | 陕西科技大学机电工程学院,陕西,西安,710021 |
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| 摘 要： | 对热泵运行的效率进行了分析比较，找出了能量效率（COP）值与火用]效率（η）值在评价热泵时的差异，对计算实例进行了COP分析和η分析并加以评价对比，并计算出了热泵实际的COP值、η和火用]损失率（Ω）．研究表明，η和Ω值在评价热泵装置时比COP评价具有更多优势，因此采用η和Ω来评价一个热泵系统运行的可用能效率更为有效．
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| 关 键 词： | 热泵 能量效率(COP) 火用效率(η) 损失率(Ω) |
ANALYSIS AND COMPARISON OF COEFFICIENTS OF PERFORMENCE AND RATE OF EXERGY OF HEAT PUMP APPLIED IN HEAT ENERGY SUPPLY SYSTEM OF PAPER MACHINE |
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| QIAO Li-jie,CHEN Hai-feng,SHI Nuo.ANALYSIS AND COMPARISON OF COEFFICIENTS OF PERFORMENCE AND RATE OF EXERGY OF HEAT PUMP APPLIED IN HEAT ENERGY SUPPLY SYSTEM OF PAPER MACHINE[J].Journal of Northwest University of Light Industry,2009,27(3):93-97. |
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| Authors: | QIAO Li-jie CHEN Hai-feng SHI Nuo |
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| Affiliation: | (School of Mechanical and Electrical Engineering, Shaanxi University of Seienee ＆ Teehnology, Xi＇ an 710021, China) |
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| Abstract: | The paper introduces two assessment methodologies of energy efficiency to a heat pump system： the coefficient of performance （COP） and the rate of exergy utilization. Used the two methods to compare and analyze a running heat pump to get the coefficient of performance （COP） , the rate of exergy utilization and exergy loss rate. Find out the differences between the two methodologies. Results of calculation show that exergy efficiency and exergy loss rate assessments is much better than COP. |
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| Keywords: | heat pump exergy efficiency （η） coefficient of performance （COP） exergy lossrate （Ω） |
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