基于数据拟合的江水源热泵系统能效模型研究  

Study on energy efficiency model of river water source heat pump system based on data fitting

作　　者：程丽莉 张启万 胡澄[2] Cheng Lili;Zhang Qiwan;Hu Cheng(Guiyang College of Information Science and Technology,Guiyang Guizhou 550025,China;College of Civil Engineering,Guizhou University,Guiyang Guizhou 550025,China)

机构地区：[1]贵阳信息科技学院,贵州贵阳550025 [2]贵州大学土木工程学院,贵州贵阳550025

出　　处：《山西建筑》2024年第15期18-22,共5页Shanxi Architecture

基　　金：贵州省科技计划项目“贵州喀斯特地区垂直地埋管换热特性研究”(编号:黔科合基础[2019]1102);贵州省教育厅教学内容和课程体系改革项目“基于应用型人才培养的《建筑设备》课程教学改革研究”(编号:2021371)。

摘　　要：采用数据拟合建立了制热工况下江水源热泵机组基础性能系数模型,在此基础上考虑蒸发器和冷凝器侧水温、水量对机组性能的影响,拟合得到变工况下江水源热泵机组制热能效模型;同时基于水泵“最小二乘法”拟合公式,建立了江水取水侧和用户侧水泵能耗模型。依托于重庆市某区域复合供能系统项目实测数据,机组能效模型误差为-5.84%~13.65%,输配系统能耗模型误差为-5.94%~9.99%,说明模型具有较高精确度,在0.2≤ε≤1.0,46℃≤t c,o≤54℃,5℃≤t e,i≤10℃,0.6≤n c≤1.2,0.6≤n e≤1.0范围内能够用于变工况下热泵机组和水泵能耗的有效预测。Based on the data fitting,the basic performance coefficient model of river water source heat pump unit under heating conditions is established and the heat efficiency model of river water source heat pump unit under varying working conditions is obtained by considering the influence of water temperature and water quantity on the performance of the unit.At the same time,the energy consumption models of the water pump on the water intake side and the user side are established on account of the fitting formula of“least square method”.According to the measured data of a regional composite energy supply system project in Chongqing,the unit energy efficiency model error is-5.84%~13.65%,and the energy consumption model error of the transmission and distribution system is-5.94%~9.99%,indicating that the model has a high accuracy,ranging from 0.2≤ε≤1.0,46℃≤t c,o≤54℃,5℃≤t e,i≤10℃.Within the range of 0.6≤n c≤1.2,0.6≤n e≤1.0,it can be used for the effective prediction of energy consumption of heat pump units and pumps under varying working conditions.

关 键 词：江水源热泵机组 基础制热性能系数 负荷率 水温 水量 水泵能耗 

分 类 号：TU822[建筑科学]