文献类型：期刊文献

中文题名：空气源冷水机组性能的实验分析

英文题名：Experimental analysis of water-cooled unit performance with air source

作者：陈鑫[1];冯士伟[2];李旭阁[1];桂超[2]

第一作者：陈鑫

机构：[1]郑州市建筑设计院,郑州450052;[2]新乡学院土木工程与建筑学院,新乡453003

第一机构：郑州市建筑设计院,郑州450052

年份：2020

卷号：48

期号：10

起止页码：85-89

中文期刊名：低温与超导

外文期刊名：Cryogenics and Superconductivity

收录：北大核心:【北大核心2017】；

语种：中文

中文关键词：制冷量;COP;风量;出水温度;风温;水流量

外文关键词：Refrigerating capacity;COP;Air volume;Outlet water temperature;Air temperature;Water flow rate

摘要：基于现有机组对设备运行环境对机组性能的影响进行分析,不仅可为机组故障分析提供方向,还可为提高机组整体性能提供改进方案。经实验验证发现:实验变量均通过改变系统高低压影响机组性能,其中冷凝温度随风量的增加、风温的降低而降低,蒸发温度随出水温度的升高、水流量的减小而升高;工质流量和单位质量制冷量直接影响机组制冷量,而机组制冷量随风温的升高、出水温度的降低、风量的减小、水流量的增大而减小;机组功耗主要包括压缩机功耗、风机功耗、水泵功耗三部分,风温和出水温度主要通过影响压缩机功耗改变机组总功耗,而风量、水流量的增加直接增大了风机功耗、水泵功耗,因此,机组COP随风温的升高、出水温度的降低、水量的增大而减小,随风量的增加呈现先升高后减小的变化趋势。
Influence of the equipment operating environment on the unit performance was analyzed based on the existing unit,not only to provide direction for failure analysis,but also to provide an improvement scheme for the overall unit performance.The experimental results show that:experimental variables affect the unit performance by changing the system high and low pressures,condensation temperature decreases with the increase of air volume and the decrease of air temperature,while evaporation temperature increases with the increase of outlet water temperature and the decrease of water flow rate;medium flow rate and refrigerating capacity per unit directly affect the unit refrigerating capacity,the unit refrigerating capacity decreases with the increase of air temperature and water flow rate,the decrease of outlet water temperature and air volume;the unit total power consumption mainly includes power consumptions of compressor,fan and pump,air temperature and outlet water temperature affect the unit total power consumption by changing the comptessor power consumption while the increase of air volume and water flow rate increases the power consumption of fan and pump,therefore,COP decreases with the increase of air temperature,the decrease of outlet water temperature and water flow rate,and increases initially and decreases afterwards with the increase of air volume.