动力舱冷却模块优化匹配方法实验  

Experiments on match optimization of underhood cooling module

作　　者：刘震涛[1] 吕锋[1] 俞小莉[1] 

机构地区：[1]浙江大学动力机械及车辆工程研究所,浙江杭州310027

出　　处：《浙江大学学报（工学版）》2011年第11期1997-2001,共5页Journal of Zhejiang University：Engineering Science

摘　　要：为了优化商用车冷却系统的匹配设计,提出基于动力舱前端模块风洞实验的冷却模块优化匹配方法.并以某商用车为原型,进行应用验证.将动力舱内前端模块按设计要求试制成前端零部件模型、冷凝器、中冷器、水散热器4排布置,在风洞试验台上进行性能试验研究.完成冷却模块与风扇的匹配设计,并通过道路试验检验该冷却系统的运行性能.研究结果表明,在4.0～10.0 m/s风速下,单个水散热器的冷却风压降占舱内前端模块总压降的55%～58%,舱内零部件对压降约有3%～5%的影响.当有效迎风速度达到7.0 m/s时,模块散热量已满足系统额定点要求.基于本方法匹配的冷却系统性能达到设计要求,前端冷却模块的匹配试验可提高系统设计精度,且有利于节能.To improve the design and match of commercial vehicle cooling system,a cooling module matching method based on underhood front module test in wind tunnel was proposed.And to a commercial vehicle for the prototype,it has been verified.The underhood front module was composed of air duct parts＇ modle,A/C condencer,charge air cooler（CAC） and radiator in four rows.It was tested in a wind tunnel test stand according to design requirement.The design and match of cooling module and fan were finished according to the wind test result.Finally the cooling system performance was trialed by the road test.The test results showed that when the air speed is 4.0-10.0 m/s,the single radiator＇s pressure drop is 55%-58% of the total number,and the air duct parts＇ pressure drop influence is about 3%-5%.The module＇s heat dissipating capacity meets the system requirement at rated load and with the effective wind speed being 7.0 m/s.The cooling system,which was designed by this method,was of good performance on road.The front end cooling module testing is propitious to improve the system design precision and save energy.

关 键 词：动力舱 冷却模块 风洞 匹配方法 压降 

分 类 号：TK424.2[动力工程及工程热物理—动力机械及工程]