摘要
对甲鱼温室太阳能与地源热泵联合供暖系统的各组成设备进行能量平衡及热力学第二定律的分析,建立了能量利用质量模型——Exergy分析模型,通过可用能损失、可用能效率及可用能损失比等评价指标对系统的热力学性能进行分析和探讨。结果表明:地表水换热器的可用能效率最高,达到92.0%;而太阳能集热器、热泵机组和储热水箱的可用能损失较大,可用能损失比达到88.1%,不可逆性大,是系统优化的关键。试验期间水源热泵机组的制热性能系数达到2.26。
The energy and exergy analytical method was used to analyze the performance of solar-assisted ground source heat pump （GSHP） system installed in a building for soft-shell turtle culture and related Exergy analytical models were developed. The performance of the system was evaluated in terms of the thermodynamic parameters of exergy destruction rate, exergy efficiency and exergetic factor. The results showed that the heat exchanger of surface water had an exergy efficiency of 92.0% , higher than other parts of the system. The exergy destruction of solar collectors, heat pump unit and thermal storage tank was large and exergetic factor reached to 88.1% , which had a higher irreversibility and was the key of system optimization. The coefficient of performance of GSHP unit reached to 2.26.
出处
《农业机械学报》
EI
CAS
CSCD
北大核心
2013年第4期233-238,232,共7页
Transactions of the Chinese Society for Agricultural Machinery
基金
国家科技重大专项资助项目(2008ZX07101-006)
浙江省重大科技专项资助项目(2008C01016-1)
关键词
太阳能
地源热泵
水产养殖
热力学分析
可用能
Solar energy Ground source heat pump Aquaculture Thermodynamic analysis Exergey
