基于微热管阵列的地板辐射采暖系统性能实验研究
|
摘要
设计并搭建了基于微热管阵列的新型地板辐射采暖系统,对系统核心换热单元的热性能进行实验研究,主要对不同供水温度、流量和流动阻力进行了测试。结果表明:地板表面温度和散热量随供水温度的升高而明显增加,随流量的增加呈缓慢上升趋势。当供水温度为40℃,流量为300 L/h时,传热模块的传热功率达154.93 W/m2,在相同室内设计温度条件下,比传统地板辐射采暖系统的传热功率高29.33 W/m2,新型地板辐射采暖系统在较低的供水温度下即可满足供暖需求,且换热更高效,具有一定优势。
A new type of radiant floor heating system based on micro heat pipe array is designed,and the performance of the core heat exchanger unit is experimentally studied. The water supply temperature,flow rate and water pipe resistance were tested. The experimental results showed that the surface temperature and heat transfer rate of the floor increased obviously with the rise of water supply temperature,while increasing slightly with the rise of the flow rate. When the water supply temperature was 40 ℃ and the flow rate was 300 L/h,the floor heat dissipation of the heat transfer module would be 154. 93 W/m2. At the same indoor design temperature,the heat transfer power of the floor radiant heating system was 29. 33 W/m2 higher than that of the traditional floor radiant heating system. The new floor radiant heating system could meet the heating needs at a lower water temperature,and the heat exchange was more efficient.
A new type of radiant floor heating system based on micro heat pipe array is designed,and the performance of the core heat exchanger unit is experimentally studied. The water supply temperature,flow rate and water pipe resistance were tested. The experimental results showed that the surface temperature and heat transfer rate of the floor increased obviously with the rise of water supply temperature,while increasing slightly with the rise of the flow rate. When the water supply temperature was 40 ℃ and the flow rate was 300 L/h,the floor heat dissipation of the heat transfer module would be 154. 93 W/m2. At the same indoor design temperature,the heat transfer power of the floor radiant heating system was 29. 33 W/m2 higher than that of the traditional floor radiant heating system. The new floor radiant heating system could meet the heating needs at a lower water temperature,and the heat exchange was more efficient.
引文
[1]中国建筑节能年度发展研究报告2016[M].北京:建筑工业出版社,2016
[2]张于峰,郝斌,谢慧,等.热管地板辐射供暖的特性[J].天津大学学报(自然科学与工程技术版),2007,40(10):1209-1214
[3]谢慧.热管地板辐射供暖基础理论研究[D].天津:天津大学,2006
[4]撖文辉.热管技术在太阳能地板辐射采暖中的应用[J].山西建筑,2014,(28):127-129
[5]Kim J S,Kim Y S,Sung Bok K O,et al.Study on Performance of Under-floor Heating System Using Oschlating Capillary Tube Heat Pipe[C]//Proceedings of ACRA-2002 Asian Conference on REfrigeration and Air Conditioning.2002
[6]赵耀华,王宏燕,刁彦华,等.平板微热管阵列及其传热特性[J].化工学报,2011,62(2):336-343
[7]卜一德.地板采暖与分户热计量技术[M].2版.北京:中国建筑工业出版社,2007
[2]张于峰,郝斌,谢慧,等.热管地板辐射供暖的特性[J].天津大学学报(自然科学与工程技术版),2007,40(10):1209-1214
[3]谢慧.热管地板辐射供暖基础理论研究[D].天津:天津大学,2006
[4]撖文辉.热管技术在太阳能地板辐射采暖中的应用[J].山西建筑,2014,(28):127-129
[5]Kim J S,Kim Y S,Sung Bok K O,et al.Study on Performance of Under-floor Heating System Using Oschlating Capillary Tube Heat Pipe[C]//Proceedings of ACRA-2002 Asian Conference on REfrigeration and Air Conditioning.2002
[6]赵耀华,王宏燕,刁彦华,等.平板微热管阵列及其传热特性[J].化工学报,2011,62(2):336-343
[7]卜一德.地板采暖与分户热计量技术[M].2版.北京:中国建筑工业出版社,2007