基于Trnsys的空调系统水泵变频节能改造  

Energy-saving transformation of air-conditioning system using frequency conversion water pumps based on Trnsys

作　　者：任凯飞 Ren Kaifei(School of Infrastructure Engineering,Nanchang University;Shanxi Haobang Energy Saving and Environmental Protection Technology Co.,Ltd.)

机构地区：[1]南昌大学工程建设学院 [2]山西皓邦节能环保科技有限公司

出　　处：《制冷与空调》2024年第7期18-22,共5页Refrigeration and Air-Conditioning

摘　　要：以太原市某商业建筑为研究对象,利用Trnsys仿真平台建立水泵变频和定频2种空调系统各部件数学模型,变频水系统中水流量根据末端负荷按需分配,对其节能性进行研究。结果表明:相较于水泵定频运行,水泵变频运行使得每个空调运营季空调系统节约电量335 322 kW·h,且空调运营季的系统EER显著提升,每月运营成本由4.60元/米^(2)下降至3.71元/米^(2),变频改造投资回收期仅为0.86年,整体节能效果和经济效益明显。Taking a building in Taiyuan city as the research object,two mathematical models of frequency conversion and constant frequency water pumps in air-conditioning system are established using Trnsys simulation platform.The water flow rate in frequency conversion water system is distributed according to the terminal load on demand,and its energy-saving performance is studied.The results show that the frequency conversion operation of water pumps in the air-conditioning system saves 335 322 kW·h in each air-conditioning operation season compared with the constant frequency operation.The EER of the system in the air-conditioning operation season increases significantly,and the operation cost per month decreases from 4.60 yuan/m~2 to 3.71 yuan/m~2.The investment recovery period of frequency conversion transformation is only 0.86 years,and the overall energy-saving effect and economic benefits are obvious.

关 键 词：空调系统 变频 水系统 TRNSYS 仿真模拟 节能 

分 类 号：TB6[一般工业技术—制冷工程]