摘要
针对一个实际工程问题,分析了室外景观水池与外界的热交换过程,介绍了水池非稳态换热过程数值模型,利用该数值模型在TRNSYS平台下建立了水池换热模块,搭建了水池换热系统模型,对冬季景观水池温度进行了全年动态模拟,确定了防冻加热负荷。在此基础上,提出了采用地埋管直接换热的系统节能方案,在原模型中加入了地埋管换热器模块,模拟了该系统的水温和换热量,并对地埋管的热平衡进行了模拟验证。该水池换热模块适用于各类室外较浅的静水体的动态换热计算问题,采用的计算方法和优化方案为类似项目提供了参考。
The heat exchange process between outside environment and an outdoor landscape pool is analyzed for a project. The unsteady heat transfer numerical model of the pool is introduced. The heat transfer module and system simulation have been established in TRNSYS platform by this numerical model.Anti-freezing load has been calculated through the dynamic simulation of the pool temperature in winter.Then an energy-saving program is proposed by using a set of ground heat exchanger system. After adding the ground heat exchanger module into the initial model, the new system has been simulated, and a method of thermal equilibrium of the ground heat exchanger has been proposed and verified. The pool dynamic heat transfer module described in this article can be applied to many kinds of outdoor shallow static water body, providing a reference for the similar projects in calculation and optimization programs.
出处
《建筑节能》
CAS
2014年第12期53-56,65,共5页
BUILDING ENERGY EFFICIENCY
基金
"十二五"国家科技支撑计划:建筑节能评估方法和指标体系研究(2012BAJ12B03)
关键词
景观水池
防冻负荷
水池换热模型
地埋管系统
TRNSYS
landscape pool
anti-freezing load
pool heat transfer model
ground heat exchange system
TRNSYS
