Experimental study on cooling characteristics of a radiant floor cooling system in Beijing

Author

Li, Qingqing ; Chen, Chao ; Lin, Jie ; Wang, Guojian

Author_Institution

Coll. of Archit. & Civil Eng., Beijing Univ. of Technol., Beijing, China

fYear

2011

fDate

15-17 July 2011

Firstpage

2167

Lastpage

2170

Abstract

The cooling characteristics of a radiant floor cooling system with the embedded pipes for an office building in Beijing had been researched mainly by experiments in this paper. The indoor air and floor temperature changed with supply water and outdoor temperature were tested and analyzed. The experimental results show that: 1) temperature of supply water plays a more important role on the characteristics of a radiant floor cooling system than water velocity and shall be controlled above 17 C to prevent condensation on the floor surface, 2) when the radiant floor cooling system is adopted, indoor mean radiant temperature and operative temperature are lower than air temperature respectively. 3)The vertical air temperature difference is about 2.1-4 1°C at the height of 0.1m to 1.1m above the floor and meets the related standard during 95% of 24 hours in a day.

Keywords

condensation; cooling; floors; heat radiation; pipes; Beijing; condensation; cooling characteristics; embedded pipes; floor temperature; indoor air temperature; office building; outdoor temperature; radiant floor cooling system; supply water; vertical air temperature; Cooling; Floors; Heat transfer; Space heating; Temperature; cooling characteristic; experiment; radiant floor cooling system;

fLanguage

English

Publisher

ieee

Conference_Titel

Mechanic Automation and Control Engineering (MACE), 2011 Second International Conference on

Conference_Location

Hohhot

Print_ISBN

978-1-4244-9436-1

Type

conf

DOI

10.1109/MACE.2011.5987407

Filename

5987407