毛细管网供冷室内环境对比实验研究
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摘要
在18℃供水温度下,对重庆地区毛细管网辐射供冷系统进行实验测试,分析了毛细管网顶棚、墙面、地面3种敷设方式的室内热工参数。结果表明:毛细管网顶棚、墙面、地面3种敷设方式供冷稳定时,人员活动区的平均温度依次为26.27、27.22、26.57℃,辐射表面平均温度依次为20.96、21.14、22.76℃,PMV依次为-0.27、0.32、-0.2,PPD依次为7.06%、7.47%、6.34%。在实验条件下,3种敷设方式供冷时室内温度均能满足≤28℃的要求,PMV、PPD均能满足《民用建筑室内热湿环境评价标准》(GB/T50785—2012)Ⅰ级热舒适评价指标。
Tests of capillary radiant cooling system in Chongqing were carried out and thermal parameter were analyzed in conditions of three different capillary laying modes(ceiling,wall and floor)with 18 ℃ supply water temperature.It concluded that when capillaries were laid on the ceiling,wall and floor respectively,the average temperature of working area was 26.27,27.22 and 26.57℃ respectively and the radiation surface temperature was 20.96,21.14 and 22.76 ℃ in turn.By calculation,the PMV of three conditions was -0.27,0.32 and -0.2 PPD results were 7.06%,7.47% and 6.34% respectively.It illustrated that all three laying ways at this experimental conditions could meet the air temperature requirements(no more than 28℃)and PMV,PPD attain thermal environment category Ⅰ.
Tests of capillary radiant cooling system in Chongqing were carried out and thermal parameter were analyzed in conditions of three different capillary laying modes(ceiling,wall and floor)with 18 ℃ supply water temperature.It concluded that when capillaries were laid on the ceiling,wall and floor respectively,the average temperature of working area was 26.27,27.22 and 26.57℃ respectively and the radiation surface temperature was 20.96,21.14 and 22.76 ℃ in turn.By calculation,the PMV of three conditions was -0.27,0.32 and -0.2 PPD results were 7.06%,7.47% and 6.34% respectively.It illustrated that all three laying ways at this experimental conditions could meet the air temperature requirements(no more than 28℃)and PMV,PPD attain thermal environment category Ⅰ.
引文
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[16]梁秋锦.毛细管网不同敷设方式供冷性能研究[D].重庆:重庆大学,2017.LIANG Q J.Study on cooling performance with capillary different laying ways[D].Chongqing:Chongqing University,2017.(in Chinese)
[17]陈金华,梁秋锦,李楠,等.毛细管网供暖室内环境对比实验研究[J].土木建筑与环境工程,2018,40(2):88-94.CHEN J H,LIANG Q J,LI N,et al.Comparative experimental analysis of capillary radiant heating on indoor environment[J].Journal of Civil,Architectural&Environmental Engineering,2018,40(2):88-94.(in Chinese)
[18]Ergonomics of the thermal environment-Analytical determination and interpretation of thermal comfort using calculation of the PMV and PPD indices and local thermal comfort criteria:ISO 7730[S].
[19]民用建筑供暖通风及空气调节设计规范:GB 50736-2012[S].北京:中国建筑工业出版社,2012.Regulations on the design of heating ventilation and air conditioning for civil buildings:GB 50736-2012[S].Beijing:China Architecture and Building Press,2012.(in Chinese)
[2]MIKESKA T,SVENDSEN S.Dynamic behavior of radiant cooling system based on capillary tubes in walls made of high performance concrete[J].Energy and Buildings,2015,108:92-100.
[3]KEBLAWI A,GHADDAR N,GHALI K.Modelbased optimal supervisory control of chilled ceiling displacement ventilation system[J].Energy and Buildings,2011,43(6):1359-1370.
[4]LEE K G,HONG W H.Thermal-environment characteristics and comfort of combined radiant-floor(Korean heating system ondol)and convective cooling system[J].Journal of Central South University.2013,20(12):3589-3603.
[5]EUSEBIO Z E,CONCECAON,MANUELA J R,et al.Evaluation of thermal comfort conditions in a classroom equipped with radiant cooling systems and subjected to uniform convective environment[J].Applied Mathematical Modeling,2011,35(3):1292-1305.
[6]KYU N R,KWANG W K.A 50year review of basic and applied research in radiant heating and cooling systems for the built environment[J].Building and Environment,2015,91:166-190.
[7]李炅,高珊,贾甲,等.毛细管辐射供冷系统性能的试验及数值模拟研究[J].制冷技术,2014,34(4):18-22.(in Chinese)LI J,GAO S,JIA J,et al.Experimental and numerical simulation study on the performance of capillary radiation cooling system[J].Journal of Refrigeration Technology,2014,34(4):18-22.
[8]朱备,翟晓强,尹亚领,等.毛细管辐射供冷的换热及结露特性的实验研究[J].制冷技术,2013,33(4):5-10.ZHU B,ZHAI X Q,YIN Y L,et al.Experimental investigation of heat transfer and dew performances of capillary radiant cooling[J].Chinese Journal of Refrigeration Technology,2013,33(4):5-10.(in Chinese)
[9]谢东,王赟,廖买利,等.基于不同管径毛细管辐射顶板供冷性能模拟[J].建筑热能通风空调,2016,35(11):1-4,48.XIE D,WANG Y,LIAO M L,et al.Numerical modeling of cooling performance for capillary ceiling radiant cooling panel based on pipe diameters[J].Building Energy&Environment,2016,35(11):1-4,48.(in Chinese)
[10]王赟,谢东,莫顺权,等.毛细管辐射冷却顶板供冷性能的数值模拟研究[J].制冷与空调,2016,30(3):287-290,294.WANG Y,XIE D,MO S Q,et al.Numerical modeling on cooling performance of capillary ceiling radiant cooling panel[J].Refrigeration&Air Conditioning,2016,30(3):287-290,294.(in Chinese)
[11]张金明.壁面辐射供冷与独立新风复合空调的数值模拟研究[D].西安:西安科技大学,2015.ZHANG J M.The numerical simulation research of the wall radiant cooling air conditioning system with independent fresh air[D].Xi'an:Xi'an University of Science and Technology,2015.(in Chinese)
[12]刘猛,王旭弟.湿热地区毛细管地板供冷末端性能实测分析[J].土木建筑与环境工程,2017,39(1):1-6.LIU M,WANG X D.Experimental analysis of terminal performance for floor cooling with capillary tubes in hot-humid area[J].Journal of Civil,Architectural&Environmental Engineering,2017,39(1):1-6.(in Chinese)
[13]李妍,许彬,贾军华,等.毛细管网抹灰安装供冷能力分析[J].暖通空调,2017,47(1):97-102.LI Y,XU B,JIA J H,et al.Cooling capacity analysis of capillary network with plasterer paving[J].Heating Ventilating&Air Conditioning,2017,47(1):97-102.(in Chinese)
[14]陈金华,杨雯芳,沈雪莲,等.不同供水工况毛细管网地板辐射供暖实验研究[J].湖南大学学报(自然科学版),2017,44(11):205-212.CHEN J H,YANG W F,SHEN X L,et al.Experimental research on capillary floor radiant heating in different water supply temperature[J].Journal of Hunan University(Natural Sciences),2017,44(11):205-212.(in Chinese)
[15]陈露,廖胜明.三种方式辐射供冷室内热环境对比分析[J].建筑热能通风空调,2010,29(3):53-56.CHEN L,LIAO S M.Three approaches to the comparative study of indoor thermal environment for radiant cooling system[J].Building Energy&Environment,2010,29(3):53-56.(in Chinese)
[16]梁秋锦.毛细管网不同敷设方式供冷性能研究[D].重庆:重庆大学,2017.LIANG Q J.Study on cooling performance with capillary different laying ways[D].Chongqing:Chongqing University,2017.(in Chinese)
[17]陈金华,梁秋锦,李楠,等.毛细管网供暖室内环境对比实验研究[J].土木建筑与环境工程,2018,40(2):88-94.CHEN J H,LIANG Q J,LI N,et al.Comparative experimental analysis of capillary radiant heating on indoor environment[J].Journal of Civil,Architectural&Environmental Engineering,2018,40(2):88-94.(in Chinese)
[18]Ergonomics of the thermal environment-Analytical determination and interpretation of thermal comfort using calculation of the PMV and PPD indices and local thermal comfort criteria:ISO 7730[S].
[19]民用建筑供暖通风及空气调节设计规范:GB 50736-2012[S].北京:中国建筑工业出版社,2012.Regulations on the design of heating ventilation and air conditioning for civil buildings:GB 50736-2012[S].Beijing:China Architecture and Building Press,2012.(in Chinese)