建筑物内空气调节应注意的两个问题

本文涉及两个具体领域：（１）对建筑物中空气渗透率进行有效估计的必要性；（２）蒸汽压缩式空气调节系统与制冷剂充灌量的关系。本文表明，通过象“风机测试”这样的简单测试所进行的对空气渗透的估计是不适用的。此外，在制冷剂充灌中如较多地偏离最佳值，可能会导致空气调节系统容量的显著下降（可达１０％）。     

NCPI是一体化机房的核心

对于一体化机房的整体解决方案,APC提出了NCPI(网络关键物理基础设施)的概念,它包含5个关键子系统:机架支撑、电力供应、空气调节、线缆管理、消防安全,这些子系统通过专业的系统管理、服务紧密地结合起来,     

谈高层建筑空调设计中几个有争议的问题

近十年来我国高层建筑空调蓬勃发展,从中总结了很多经验和教训,人们在对实践中反映出来的各式各样问题进行探讨研究的过程中,对一些问题存在着争议。现就当前几个有争议的问题谈谈看法。     

迈科VAV终端箱控制器——UAV0560L／UAV0520L

Matrix iS21是由迈科智控有限公司开发研制，可通用的软硬件系列产品，专为HVAC（采暖、通风、空气调节）、智能楼宇自动控制系统而设计。     

Evaluation on Snow Infiltration into Heating Ventilation and Air Conditioning Intake： A Numerical Study

A HVAC （heating ventilating and air conditioning） system is generally designed to ventilate an indoor space. In windy and snowy climates dispersed snow particles in ambient air can enter the intake duct, potentially causing a serious problem. The study addresses the influence of suction volumetric flow rates, the potential discrepancy of snow intake based upon the wind direction in relation to the intake vent, and the possible difference in amounts of infiltrated snow particles in varying intake vent design and locations. The necessary characteristic quantities are defined. The simulation results show the rate of infiltration and the efficiency of the chosen intake designs. The magnitude and direction of wind influences snow infiltration significantly. The daily amount of infiltrated snow is introduced to be the characteristic measure of the infiltration in design of the HVAC systems.     

The Feasibility Study of the Waste Heat Air—Conditioning System for Automobile

ＴｈｅＦｅａｓｉｂｉｌｉｔｙＳｔｕｄｙｏｆｔｈｅＷａｓｔｅＨｅａｔＡｉｒ－ＣｏｎｄｉｔｉｏｎｉｎｇＳｙｓｔｅｍｆｏｒＡｕｔｏｍｏｂｉｌｅ￥Ｇｕｉ－ｐｉｎｇＬｉｎ；Ｘｉｕ－ｇａｎＹｕａｎ；Ｚｈｉ－ｇｕａｎｇＭｅｉ（Ａｉｒ－Ｃｏｎｄｉｔｉｏｎｉｎｇａｎｄ...