科技通报
科技通報
과기통보
BULLETIN OF SCIENCE AND TECHNOLOGY
2015年
4期
218-221
,共4页
热泵%海水淡化%蒸发压力%性能
熱泵%海水淡化%蒸髮壓力%性能
열빙%해수담화%증발압력%성능
heat pump%seawater desalination%evaporation pressure%performance
对热泵低温蒸发海水淡化中的传热与海水淡化性能进行了理论分析。建立了热泵低温蒸发海水淡化系统的传热和热力学模型。编制计算机程序，分析了蒸发压力对系统性能的影响。计算结果表明，蒸发压力的提升，对系统的性能有利有弊：蒸发压力的提升，换热管的换热增强，淡水能耗降低，系统产水效率提高；但所需换热面积增加并且单位换热面积的产水效率降低。
對熱泵低溫蒸髮海水淡化中的傳熱與海水淡化性能進行瞭理論分析。建立瞭熱泵低溫蒸髮海水淡化繫統的傳熱和熱力學模型。編製計算機程序，分析瞭蒸髮壓力對繫統性能的影響。計算結果錶明，蒸髮壓力的提升，對繫統的性能有利有弊：蒸髮壓力的提升，換熱管的換熱增彊，淡水能耗降低，繫統產水效率提高；但所需換熱麵積增加併且單位換熱麵積的產水效率降低。
대열빙저온증발해수담화중적전열여해수담화성능진행료이론분석。건립료열빙저온증발해수담화계통적전열화열역학모형。편제계산궤정서，분석료증발압력대계통성능적영향。계산결과표명，증발압력적제승，대계통적성능유리유폐：증발압력적제승，환열관적환열증강，담수능모강저，계통산수효솔제고；단소수환열면적증가병차단위환열면적적산수효솔강저。
The investigation on the thermal and desalination performance of low temperature evaporation heat pump was carried out in this paper. heat transfer and thermodynamics model of heat pump low temperature evaporation desalination system were built. Compiled computer program and the effect of evaporation pressure on system performance were analyzed. The results show that the ascension of evaporating pressure cut both ways:the ascension of evaporating pressure enhance heat transfer, reduces the energy consumption and improves the efficiency of water production, but need to increase heat exchange area as well as the efficiency of unit heat exchange area of water production reduce.
