Experimental and simulation study on the thermal performance of cavity-type radiant floor heating systems
LI Chengtong
LIANG Xiaoguang
DONG Leilei
LI Jian
ZHAO Shengzhong
Abstract：Aiming at the problems of long construction period,high load and unfavorable evaluation of prefabricated buildings in traditional wet floor radiant heating,a cavity-type radiant heating system that combines prefabrication and heating comfort is proposed.By setting up an experimental platform,the thermal performance differences between this system and the traditional wet radiant heating system under different water supply parameters are compared and analyzed.With the aid of numerical simulation,the influence of the temperature field and flow field distribution of the surface layer structure and the size of the cavity module is studied.The results show that the air interlayer of the cavity-type radiant heating system has good thermal insulation performance and can meet the comfort requirements at a lower water supply temperature.The air velocity distribution within the air interlayer presents an'∞'shaped circulation.Appropriately increasing the height and width of the cavity module can effectively improve the floor surface temperature and heat flux density.
Keywords：cavity-type radiant heating systemthermal performancewater supply parametersmodule size
Publication Date：2026-01-31
Online Publishing Date：2026-03-11(First online date of this platform, not the publication date of the document)
Pages：5( 1-5 )