制冷技术
製冷技術
제랭기술
REFRIGERATION TECHNOLOGY
2014年
1期
6-11
,共6页
空气源热泵热水系统%室内泳池%显热回收%建模
空氣源熱泵熱水繫統%室內泳池%顯熱迴收%建模
공기원열빙열수계통%실내영지%현열회수%건모
Air source heat pump water heater system%Indoor swimming pools%Sensible heat recovery%Model building
针对一种两级冷凝热泵热水系统,本文采用分区集中参数模型对该系统的冷凝器进行了建模研究,并与实验结果进行了比较,模型计算结果与实验结果可以较好地吻合。基于该模型,本文分析了该系统在室内泳池中的应用。当一级冷凝器与二级冷凝器换热管长度之比为23.67%时,该系统可同时满足泳池水和淋浴水在过渡季节的加热需求。通过提高一级冷凝器入口水温至51℃,该系统可满足冬季连续运行的需要。最后,与常规热泵热水器进行比较,采用该系统后,在过渡季节和冬季加热淋浴水的运行费用可分别降低15.05%和3.38%。
針對一種兩級冷凝熱泵熱水繫統,本文採用分區集中參數模型對該繫統的冷凝器進行瞭建模研究,併與實驗結果進行瞭比較,模型計算結果與實驗結果可以較好地吻閤。基于該模型,本文分析瞭該繫統在室內泳池中的應用。噹一級冷凝器與二級冷凝器換熱管長度之比為23.67%時,該繫統可同時滿足泳池水和淋浴水在過渡季節的加熱需求。通過提高一級冷凝器入口水溫至51℃,該繫統可滿足鼕季連續運行的需要。最後,與常規熱泵熱水器進行比較,採用該繫統後,在過渡季節和鼕季加熱淋浴水的運行費用可分彆降低15.05%和3.38%。
침대일충량급냉응열빙열수계통,본문채용분구집중삼수모형대해계통적냉응기진행료건모연구,병여실험결과진행료비교,모형계산결과여실험결과가이교호지문합。기우해모형,본문분석료해계통재실내영지중적응용。당일급냉응기여이급냉응기환열관장도지비위23.67%시,해계통가동시만족영지수화림욕수재과도계절적가열수구。통과제고일급냉응기입구수온지51℃,해계통가만족동계련속운행적수요。최후,여상규열빙열수기진행비교,채용해계통후,재과도계절화동계가열림욕수적운행비용가분별강저15.05%화3.38%。
Aiming at a two-stage condensing heat pump hot water system, a model for the two condensers was developed based on partitioned lumped parameter method. Results from the model were compared with the experimental data, and the predicted results agree well with the experimental data. Based on this model, the application of this system was analyzed in indoor swimming pools. When the ratio of tube length of the first condenser to the second one is set as 23.67%, both swimming water and shower water can be precisely heated by this system during the transition season. In winter, the inlet water temperature of the first condenser should be elevated to 51oC to meet the needs of heating load matching. Comparing with the conventional heat pump water heater, the operating cost of shower water heating can be reduced by 15.05%and 3.38%in the transition season and winter, respectively.