空气节能器在空调系统中的应用
Application of air-side economizer to air conditioning systems
摘要：
空气节能器是美国大中型建筑全空气系统和空气-水系统中应用广泛的一种节能设备。ANSI/ASHRAE/IESNA Standard 90.1-2007规定，凡是带风机的冷却系统都应考虑使用空气侧或水侧节能器。介绍了空气节能器的组成、控制方式和4种运行模式，并指出空气节能器运行中容易出现的问题。鉴于我国的气候、大气污染状况及空调系统形式，认为目前空气节能器应用于我国大中型建筑的空调系统中的条件尚不成熟。
Abstract：
Air-side economizers are widely used in all-air or air-water air conditioning systems of large and medium buildings in US as energy-saving equipment. ANSI/ASHRAE/IESNA Standard 90.1-2007 requires that each cooling system with a fan should include either an air-side economizer or a water side economizer. Presents the components, control types and four kinds operating modes of the fresh air economizers. Points out some problems tending to occur in their operation. Indicates that owing to the climate, the atmosphere pollution situation and the types of air conditioning systems in China, the fresh air economizers are inappropriate choice in air conditioning systems of large and medium buildings in China at present.
Keywords:air-sideeconomizer,airconditioningsystem,energysaving,controlmethod