组合式空冷器风量需求规律  

Air demand of combined air coolers

作　　者：陈良才[1] 杨博[1] 朱晓明[2] 张迎恺[3] 

机构地区：[1]华中科技大学能源与动力工程学院,湖北武汉430074 [2]中国石油化工股份有限公司湖北武汉石油分公司,湖北武汉430082 [3]中国石化工程建设公司,北京100101

出　　处：《华中科技大学学报（自然科学版）》2011年第11期129-132,共4页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：中国石油化工股份有限公司技术开发项目(310063)

摘　　要：推导了组合式空冷器所需风量与总热负荷、环境温湿度及热流体交界温度的多公式关联的隐函数关系.取1 000个有实际意义的工况点,拟合了需风量与各变量之间的显函数公式.结果表明:需风量随热负荷线性增加,随环境湿度线性增加;环境温度25℃以上时,需风量随环境温度增减的幅度较大,环境温度10℃以下时,需风量随环境温度增减的幅度较小;热流体交界温度越高,需风量越小.拟合公式反映了各因素影响下的风量需求规律.The implicit functional relation of air quantity of the combined air cooler with total heat load,surrounding air temperature and humidity,and the junctional temperature of hot fluid between finned coils and evaporative coils in the cooler was developed and analyzed.The explicit function of air demand was fitted by calculating 1 000 effective working conditions.The results show that the air demand increases linearly with total heat load,and it increases linearly with environment humidity as well.The air demand increases or decreases faster when the environment temperature is above 25 ℃,and slowly when the temperature is below 10 ℃.The higher the junction temperature of hot fluid,the smaller the air volume is required.The fitted function of air demand indicates the rules of air demand with the variables.

关 键 词：空冷器 风量 组合需求 规律 模型 

分 类 号：TB65[一般工业技术—制冷工程]