土壤源热泵系统运行特性的快速预测方法  

A fast forecast method for operation characteristics of ground-coupled heat pump system

作　　者：张长兴[1,2] 郭占军[3] 刘玉峰[1,2] 胡松涛[4] 丛晓春[1,2] 

机构地区：[1]山东科技大学土木建筑学院,青岛266590 [2]山东省土木工程防灾减灾重点实验室,青岛266590 [3]华北水利水电学院环境与市政工程学院,郑州450011 [4]青岛理工大学环境与市政工程学院,青岛266033

出　　处：《农业工程学报》2012年第24期173-178,共6页Transactions of the Chinese Society of Agricultural Engineering

基　　金：山东省科技发展计划项目(2008GG10005007);山东科技大学"春蕾计划"项目(2010AZZ130);山东科技大学土木建筑学院科研创新团队支持计划项目

摘　　要：土壤源热泵系统的逐时运行特性预测对于系统设计和运行策略评估是十分重要的。该文在分析地埋管换热器传热基本原理的基础上,通过与动态负荷作用下"负荷叠加"的G函数法的对比,提出了一种热泵系统运行特性的快速预测方法。在进行年逐时运行特性预测时,通过与采用有限长线热源模型加准三维钻孔热阻模型换热器的某热泵系统算例计算结果的比较,该文预测方法对应的主要性能指标相对误差均低于1%,计算耗时仅为原方法的1/1000。该方法对于土壤源热泵系统的设计和应用具有十分重要的意义。It is important to forecast hourly operation characteristic for design and strategy evaluation of ground-coupled heat pump system （GCHPs）. Based on the basic heat transfer principle of ground heat exchanger （GHE）, this paper presented a fast forecast method for operation characteristic of GCHPs by comparing with the G function method for the superposition of heat transfer rate corresponding to different contribution of each time step. In order to validate the method, the annual hourly calculated results were compared with the sample results of the GCHPs based on the finite het source model outside the borehole and quasi-three dimension heat resistances inside the borehole. Result showed that the relative errors of characteristic parameters were all less than 1% and the computation time was only 1/1000. This study is helpful for the design and application of GCHPs.

关 键 词：泵 算法 模型 运行特性 埋管换热器 卷积算法 精度 

分 类 号：TU111[建筑科学—建筑理论] TK52[动力工程及工程热物理—热能工程]