An Ezperimental Study on Continuous and Intermittent Control for Radiant Floor Heating System with DSHP
An experimental study on continuous and intermittent control for a new kind of radiant floor heating system using refrigerant flow as directly heating medium was studied in this paper. The two control modes were compared in terms of thermal comfort and energy consumption by measured indoor and outdoor air temperatures, humidity and energy consumption. The result shows that the system was capable of creating a comfortable environment in both operating modes. During the continuous operating mode, the tin, two, tf were small variation and not varied by outdoor environment. The vertical gradient of temperature between bodys ankle (0.1m) and head (1.75m) was about 0.4℃. While during the intermittent operating mode, there were a 2℃ variation in room air-temperature (21-23℃) and a 4℃ variation in the floor-slab temperature (23-27℃). The vertical gradient of temperature between bodys ankle (0.1m) and head (1.75m) was about 0.5℃. When using intermittent heating mode, heating time could be reduced, leading to more than 30％ energy saving compared with the continuous mode in the experimental conditions. The thermal comfort and energy saving of the intermittent operating mode will be further enhanced when a new kind of thermal insulation material for wall and optimizing control strategy of building automatic systems are used in the heating system.
DSHP Radiant floor heating system Operating mode Thermal comfort Energy saving
Xinli Wei Jinjing Wu Zhangchuan Zeng Jifu Lu WanRen Chen ZongDi Wei
School of Chemical and Engineering,Zhengzhou University,Zhengzhou,China Henan Rebom Energy Technology Development Co.,Ltd,Zhengzhou,China
国际会议
The 6th International Symposium on Heating,Ventilating and Air Conditioning(第六届国际暖通空调学术会议)
南京
英文
1545-1552
2009-11-06（万方平台首次上网日期，不代表论文的发表时间）