摘要
在流体运动基本方程N-S方程的基础上,利用水温、质量和能量方程,建立了湖水源热泵系统利用水体水温变化的二维数学模型,并耦合求解得到水体水温的数值解。以夏季取水温度限值为依据,求解出在供冷期间不同负荷特征以及不同初始水温下水体能够承受的最大排热量。通过回归方法,得到水体热承载能力的检验方程。根据工程案例测试数据分析,该计算方法下的理论结果和实际测试结果较吻合,能够应用于湖水源热泵系统的可行性研究。
Based on N-S equations, dynamic two-dimensional model of lake water used for lake-water source heat pump system was built using temperature equation mass equation and energy equation. And arithmetic solution of ware temperature was attained by coupled solution. Based on limit temperature of water abstraction in summer, the largest quantity of heat the water can carried was obtained in different load and different start water temperature in heating period. Through regression, heat carrying capacity of water was obtained. Based on test data analysis, engineering project, theoretical result and test result in this computational method were coincide well, and this computational method can be used in feasibility study for lake-water source heat pump system.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2012年第9期1541-1546,共6页
Acta Energiae Solaris Sinica
基金
国家科技部"十一五"科技攻关项目(2006BAJ01A06)
建筑用能系统高效节能技术应用研究与产品开发(CSTC
2008AB7110)
关键词
湖水源源热泵
水温限值
耦合
热承载力
lake-water source heat pump
limit temperature
coupling
heat carrying capacity
