水基玻璃壁面的辐射供冷特性和优化研究.pdfVIP

areaofWBGP,increasingtheaspectratioisanalternativetostrengthenthecoolingcapacity,

reducethesurfacetemperature,andhomogenizethesurfacetemperature.

RoomtemperaturecanbereducedbyincreasingtheWBGPinstallationarea;whilethe

averageroomtemperaturesaresimilarforWBGPswiththesameareabutdifferentinstallation

options.TheroomtemperaturedistributionismoreuniformwithWBGPinstalledondifferent

walls.ByincreasingthesurfacetemperatureofWBGP,thetemperaturegradientintheworking

areadecreases,andtheoveralltemperaturedistributionismoreuniform.However,theroom

temperatureisincreasedandreachesthehighestvalueof26.71℃(inthecomforttemperature

range)withthesurfacetemperatureofWBGPincreasedto22℃.Theroomtemperatureandthe

temperaturegradientincreasewiththeincreaseofinternalheatsource.Theroomtemperature

reaches26.81°C,andtheverticalairtemperaturedifferencebetweenheadandanklesin

standingpositionis2.65°Cwiththemaximuminternalheatsourceof600W,forminga

satisfactoryindoorthermalenvironment.Withenoughinstallationarea,WBGPiscapableof

creatingaproperthermalenvironmentforregularofficespacetakingintoconsiderationinternal

heatsourcesfromoccupant,equipmentandlighting.

KeyWords:Radiantcooling;water-basedglasspartition;CFDsimulation;flowfield;

temperaturedistribution

目录

摘要I

AbstractII

1绪论1

1.1研究背景1

1.2国内外研究现状1

1.2.1壁面辐射末端的热性能和热环境调节性能1

1.2.2水流窗的节能性、热性能和热环境调节性能3

1.2.3辐射供冷供暖特性和窗体传热的CFD模拟研究5

1.3研究目的及意义6

1.4论文主要内容6

2WBGP辐射供冷特性的实验研究8

2.1实验设计8

2.1.1实验平台8

2.1.2实验方法和方案12

2.2理论分析与实验数据处理13

2.3实验结果与