楼宇自动控制系统、设备及配件、制冷及空调系统、设备及配件的技术研究开发、技术转让、技术服务。（依法须经批准的项目，经相关部门批准后方可开展经营活动）
High-power density data centers are developing rapidly, and how to ensure the safe and reliable operation of IT equipment and reduce data center energy consumption is a key issue in the industry. From the perspective of air flow organization, the sealing of cold or hot aisle closure can effectively solve the problems of doping of cold and hot air flow,local hot spots, and waste of cooling capacity, and improve the COP of the cooling system. This paper discusses the application of hot and cold aisle closure in data centers from the perspectives of thermal management, cold and hot aisle closure characteristics, practical application examples and applicable cooling equipment types. There is no accurate distinction between good and bad, and each has its own advantages.
The performance test methods and conditions in national standard GB/T 18430.1-2007"Water chilling (heat pump) packages using the vapor compression cycle Part 1: Water chilling (heat pump) packages for industrial & commercial and similar applications"were interpreted in detail,which provides guidance for proper understanding of the provisions of the standard and accurate measurement of the performance of the water chilling (heat pump) packages.
