东南大学学报（自然科学版）Issue(1)：55-61,7.DOI:10.3969/j.issn.1001-0505.2016.01.010
间接蒸发冷却多级新风处理系统的性能分析
Performance analysis of multistage indirect evaporative cooling fresh air processing system
摘要
Abstract
According to the heat recovery characteristic of evaporation cooling, an evaporative cool-ing fresh air processing system was proposed.Mathematical models of modules and the system were established based on cardinal module verifications using experimental data and literature data.The simulation results show that:during independent cooling and dehumidification of fresh air, this sys-tem exhibits remarkable energy-saving effect and potential.Under the condition that the temperature of fresh air is 35℃(moisture content 21.68 g), the temperature of supply air is 19.3 ℃(moisture content 9.0 g), the mass transfer unit number of the packings in heat recovery module is 2.5 and the cooling coil heat transfer capability is 1.65 kW/K, the heat recovery efficiency and exhaust exergy utilization efficiency can reach the maximum values of 72.6%and 82.2%, respectively, when cir-culating water flow is 1.6 kg/s.The optimum circulating water flow rate increases with the increase of the humidity difference and the temperature difference of the inlet air, or the decrease of the heat transfer capability of the cooling coil.A little variation of the optimum flow rate is observed with the changed mass transfer unit number.When the mass transfer unit number of the packing is greater than 1.3, the cooling coil heat transfer capability has greater impact on the heat recovery efficiency than the packing heat transfer capability.关键词
蒸发冷却/表冷器/热回收/分析Key words
evaporative cooling/cooling coil/heat recovery/exergy analysis分类
能源科技引用本文复制引用
黄维冬,张伦,张小松..间接蒸发冷却多级新风处理系统的性能分析[J].东南大学学报（自然科学版）,2016,(1):55-61,7.基金项目
“十一五”国家科技支撑计划资助项目（2011BAJ03B14）、国家自然科学基金资助项目（51376044）． （）
