提高水源热泵机组效率的技术条件分析  

TECHNICAL CONDITIONS ANALYSIS OF IMPROVING WATER-SOURCE HEAT PUMP EFFICIENCY

作　　者：马一太[1] 刘春涛[1] 田华[1] 袁秋霞[1] 赵丽[1] 

机构地区：[1]天津大学热能研究所,天津300072

出　　处：《太阳能学报》2012年第1期30-36,共7页Acta Energiae Solaris Sinica

基　　金：国家科技支撑计划(2006BAK04A22-3)

摘　　要：以热力学完善度为评价指标,分析水源热泵在标准工况下各部件的不可逆损失程度,其中由压缩机和换热器引起的不可逆损失占总不可逆损失的80%以上。在此基础上,针对水源热泵的特点,对几种能提高其能效水平的技术进行定性和定量分析,结果表明均能有效提高机组的热力学完善度。对采用这些技术的水源热泵机组进行的测试中,制冷,45℃、55℃制热工况下,性能系数分别达到6.64、4.79和3.99。对市场上的部分水源热泵产品样本进行统计分析,结果表明制冷和制热工况的性能水平较低,热力学完善度平均值分别为0.270和0.423,绝大部分产品的性能提升空间超过20%。The thermodynamic perfectibility was adopted as evaluation index, and more than 80% of irreversible loss was caused by compressor and heat exchangers under standard conditions of water-source heat pump. Based on this, according to the characteristic of water-source heat pump, the qualitative and quantitative analysis of technolo- gies for improving energy efficiency were carried out, results showed that the technologies were analyzed can effec- tively increase thermodynamic perfectibility. And in the actual testing, the coefficient of performance for refrigera- tion condition, heating condition of 45℃ and 55℃ respectively reach 6.64, 4.79 and 3.99. The statistics analysis for water-source heat pump in the market had also been drew, it had been found that the product performance was rather low with the average thermodynamic perfectibility was 0.270 and 0. 423 for refrigeration and heating condi- tion respectively, there is still much improvement by above 20% for most of products.

关 键 词：水源热泵 热力学完善度 不可逆损失 技术条件 

分 类 号：TB61[一般工业技术—制冷工程]