Crawlspace heating system in detached house with insulated foundation

Two practical crawlspace heating systems introduced in detached houses have been chosen as a field study. One is the crawlspace warm air heating system and the other is the crawlspace hot water circulation system. Based on the field study result, by using the simulation software, THERB, the effectiveness of the crawlspace warm air heating system has been examined. The effect of the factors, such as the wind amount circulating between crawlspace and indoor space, foundation insulation condition, and heat amount into the crawlspace, on the indoor thermal environment has been analyzed. Based on these analyses, the measured crawlspace heating system can make the average temperature of the living room above 20 °C. These two houses have excellent thermal environment. According to the simulating result, heat amount input into crawlspace, which can make comfortable indoor thermal environment, for every month in heating period has been roughly concluded, and they are 600 W in December and March and 800 W in February and January, respectively.

[1]  Myoung Souk Yeo,et al.  Evaluation of the control performance of hydronic radiant heating systems based on the emulation usi , 2011 .

[2]  S. H Cho,et al.  Predictive control of intermittently operated radiant floor heating systems , 2003 .

[3]  Jian-Sheng Huang,et al.  Evaluation of cooling ceiling and mechanical ventilation systems on thermal comfort using CFD study in an office for subtropical region , 2012 .

[4]  Dominique Derome,et al.  Experimental assessment of the velocity and temperature distribution in an indoor displacement ventilation jet , 2012 .

[5]  Maxime Tye-Gingras,et al.  Investigation on heat transfer modeling assumptions for radiant panels with serpentine layout , 2011 .

[6]  雄三 坂本,et al.  梅雨時期を含む夏期の基礎断熱床下空間の温湿度環境 : 温暖地における基礎断熱工法に関する研究 その2 , 2000 .

[7]  Joseph Virgone,et al.  Evaluation of thermal comfort using combined CFD and experimentation study in a test room equipped with a cooling ceiling , 2009 .

[8]  Zhen Tian,et al.  A field study of occupant thermal comfort and thermal environments with radiant slab cooling , 2008 .

[9]  B. Olesen,et al.  Experimental evaluation of heat transfer coefficients between radiant ceiling and room , 2009 .

[10]  Byung-Cheon Ahn,et al.  Control characteristics and heating performance analysis of automatic thermostatic valves for radiant slab heating system in residential apartments , 2010 .

[11]  Mahmut Uludag,et al.  A simplified model for radiant heating and cooling panels , 1994, Simul. Pract. Theory.

[12]  Jiang He,et al.  A design supporting simulation system for predicting and evaluating the cool microclimate creating effect of passive evaporative cooling walls , 2011 .

[13]  M. Rahimi,et al.  Experimental study of radiation and free convection in an enclosure with a radiant ceiling heating system , 2010 .

[14]  Abdelaziz Laouadi.  Development of a radiant heating and cooling model for building energy simulation software , 2004 .

[15]  Xing Jin,et al.  Numerical simulation of radiant floor cooling system: The effects of thermal resistance of pipe and water velocity on the performance , 2010 .