间接蒸发冷却技术在空调系统中的节能分析

Energy Saving Analyses of Indirect Evaporative Cooling Technology in Air Conditioning System

探讨间接蒸发冷却技术在细纱车间空调系统的最佳应用形式及节能效果。以西安地区为例,分析了不同室外气象参数条件下,在细纱车间空调系统中采用间接蒸发冷却技术的不同运行模式及运行时长,统计出每年机械制冷运行时长约857 h(约36 d),分析计算在机械制冷开启时段中,间接蒸发冷却在不同应用形式下的预冷节能效果。经对比,当预冷新风、新风作为二次空气时,间接蒸发冷却预冷效果较好,每10万m^(3)/h送风量,每年可净节约机械制冷系统电耗9590 kW·h。认为:在细纱车间空调系统中科学选用间接蒸发冷却技术的应用形式,可取得较好的节能效果。

The optimal application form and energy saving effect of indirect evaporative cooling technology in air conditioning system of spinning workshop were discussed.Xi’an area was taken as an example.Different running modes and running time of adopting indirect evaporative cooling technology in air conditioning system of spinning workshop under different out door climatic parameters were analyzed.It was counted that the annual mechanical refrigeration running time was around 857 h(about 36 d).The precooling energy saving effects of indirect evaporative cooling in different application forms were analyzed and calculated in the mechanical cooling open time frame.After comparison,when precooling fresh air and fresh air were used as secondary air,the precooling effect of the indirect evaporative cooling was better.For every 100000 m^(3)/h air output,the annual net saving of mechanical cooling system power consumption was 9590 kW·h.It is considered that better energy saving effect can be obtained by scientifically selecting the application form of air conditioning system indirect evaporative cooling technology in spinning workshop.