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《冬季大空间室内两种典型气流组织的试验研究.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、2010年第38卷第3期流体机械53文章编号:1005--0329(2010)03—o053—O5冬季大空问室内两种典型气流组织的试验研究任荣,黄展,赵惠忠。陈雷(上海理工大学,上海200093)摘要:试验研究并分析了喷口单侧送风和柱状下送风2种典型气流组织的5个工况下冬季室内的垂直温度分布、居住域温度场、速度场、PMV以及供热量等试验结果。试验A、B、C、D、E5个工况依次为:喷口下调30。、l5。侧上送侧下回风2个工况,柱状下送上回方式,分设计送风面积、削减下部送风面积40%、削减上部送风面积60%3个工况。试验风量为7275~8506m/h,室
2、外空气综合温度为9.0~9.3~C。试验结果表明:A、B、C、D、E5个工况的单位室内外温差供热量依次为1832、1673、2210、2016和1836w/℃时,居住域的平均温度相应可达23.1、23.1,18.7,19.7和21.3℃,其PMV均值分别为0.48,0.33,0.02,0.03和0.34。试验和理论研究结果表明,在同样的舒适度的条件下,冬季喷口送风节能性、稳定时间要好于柱状送风气流组织,从居住域的热环境均匀性、局部吹风感角度出发,柱状送风要好于喷口送风。关键词:冬季;试验研究;大空问;气流组织;舒适性;节能性中图分类号:TB6文献标识
3、码:Adoi:10.3969/j.issn.1005—0329.2010.03.012ExperimentalStudyforTwoTypicalAirDistributionsinLargeSpaceinWinterRENRong,HUANGChen,ZHAOHui—zhong,CHENLei(UniversityofShanghaiforScienceandTechnology,Shanghai200093,China)Abstract:Experimentshavebeencarriedoutintheexperimentalbasesunde
4、rtwotypicalairdistributionsofventside—supplyingandcolumndown-supplyingdistributionsinwinter,parameterslikeindoorverticaltemperaturedistribution、temperatureandve-locityfieldinthelivingdomain、PMVandheatingloadhavebeenanalyzed,ThefivedistributionsofA、B、C、D、Eareasfollows:thenozzled
5、eclining30side—supplyingdownside·returning,thenozzledeclining15side·supplyingdownside—returning,colum—narsupplying,columnarsupplyingwithlower40%areasealedandcolumnarsupplyingwithupper40%areasealeddistribution.Theexperimentalvolumesrangefrom7275~8506m/h,andtheoutdoorcomprehensiv
6、etemperatureisabout9.0~9.3~C。Theresultsshowthat:whenheatingloadat1832、1673、2210、2016and1836W/℃respectively,theaveragetemperatureinlivingdomaincanreach23.1、23.1、18.7、19.7and21.3℃,andaveragePMVvaluesare0.48,0.33,0.02,0.03and0.34according—ly,Frombothexperimentandtheoryitshowsthat:
7、Whenreachthesamecomfort,nozzlesupplyingisbetterthancolumnarsuppl—yingdistributionfromthepointofenergyconservationandstabilizationtime.Whileconsideringtheuniformityandthedraftinthelivingdomain,columnarsupplyingisbetterthannozzlesupplyingdistribution.Keywords:winter;experiment~st
8、udy;largespace;airdistributions;comfort;energyconserva
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