流体机械
流體機械
류체궤계
Fluid Machinery
2015年
8期
59-63
,共5页
干式地板辐射供暖系统%热工特性%热舒适性%试验研究
榦式地闆輻射供暖繫統%熱工特性%熱舒適性%試驗研究
간식지판복사공난계통%열공특성%열서괄성%시험연구
lightweight radiant floor heating system%thermal performance%thermal comfort%experimental study
对干式地板辐射供暖系统进行了连续供暖和变供水工况测试,分析和评价了干式系统的供暖性能和热舒适性,并与湿式系统进行了比较. 试验结果表明:干式系统稳定运行时,室内空气温度在水平和竖直方向分布均匀,热稳定性和热舒适性好. 辐射换热量约占总换热量的65.6%,总换热量能够满足大部分建筑冬季供暖需求. 干式系统在35~40℃区间内调节供水温度,可明显改变室内温度,而调节供水流量对室内温度影响不大. 与湿式系统相比,干式系统预热时间短,对供水温度要求低,供暖能力强,更适用于需要间歇供暖的场所,但其蓄热能力差. 结果将为干式系统的设计及其应用提供试验数据支撑.
對榦式地闆輻射供暖繫統進行瞭連續供暖和變供水工況測試,分析和評價瞭榦式繫統的供暖性能和熱舒適性,併與濕式繫統進行瞭比較. 試驗結果錶明:榦式繫統穩定運行時,室內空氣溫度在水平和豎直方嚮分佈均勻,熱穩定性和熱舒適性好. 輻射換熱量約佔總換熱量的65.6%,總換熱量能夠滿足大部分建築鼕季供暖需求. 榦式繫統在35~40℃區間內調節供水溫度,可明顯改變室內溫度,而調節供水流量對室內溫度影響不大. 與濕式繫統相比,榦式繫統預熱時間短,對供水溫度要求低,供暖能力彊,更適用于需要間歇供暖的場所,但其蓄熱能力差. 結果將為榦式繫統的設計及其應用提供試驗數據支撐.
대간식지판복사공난계통진행료련속공난화변공수공황측시,분석화평개료간식계통적공난성능화열서괄성,병여습식계통진행료비교. 시험결과표명:간식계통은정운행시,실내공기온도재수평화수직방향분포균균,열은정성화열서괄성호. 복사환열량약점총환열량적65.6%,총환열량능구만족대부분건축동계공난수구. 간식계통재35~40℃구간내조절공수온도,가명현개변실내온도,이조절공수류량대실내온도영향불대. 여습식계통상비,간식계통예열시간단,대공수온도요구저,공난능력강,경괄용우수요간헐공난적장소,단기축열능력차. 결과장위간식계통적설계급기응용제공시험수거지탱.
In order to get a better knowledge of Lightweight radiant floor heating ( LRFH) system,thermal performance and thermal comfort are analyzed.The study results indicate that LRFH system shows fine thermal stability and thermal comfort with u-niform indoor air temperature distribution both in horizontal and vertical directions.When the system reaches stable condition,ra-diant heat transfer accounts for 65.6%of total and the total heat transfer can meet heating demand of most buildings.The indoor air temperature of the LRFH system is obviously changed when the supply water temperature is changed in the range of 35 ~40℃,while the water flow has little influence on it.Compared with heavy radiant floor heating (HRFH) system,it has shorter preheating time,lower temperature requirement of supply water and stronger heating capability,but the heat storage capacity is poor.Results will provide technological foundation for design and application of LRFH system.