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EFFECTIVENESS OF SUBTERRANEAN HEAT USE IN AN EARTH TUBE COMMUNITY HOUSE |
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| รหัสดีโอไอ | |
| Creator | Ayumi JIMBO |
| Title | EFFECTIVENESS OF SUBTERRANEAN HEAT USE IN AN EARTH TUBE COMMUNITY HOUSE |
| Contributor | Hiroo TARUMI |
| Publisher | TUENGR |
| Publication Year | 2561 |
| Journal Title | International Transaction Journal of Engineering, Management, & Applied Sciences & Technologies |
| Journal Vol. | 9 |
| Journal No. | 2 |
| Page no. | 107-117 |
| Keyword | Earth tube system, Subterranean heat use, Measurement survey, ventilation, in house humidity |
| URL Website | http://tuengr.com |
| Website title | International Transaction Journal of Engineering, Management, & Applied Sciences & Technologies |
| ISSN | 2228-9860 |
| Abstract | This study involves a year-round measurement survey of outside air and indoor outlet temperature and humidity for a community house with an earth tube system constructed in Japan. The effectiveness of using subterranean heat in a house in the Hokuriku region is examined by calculating heat extraction in summer and heat addition in winter. The main features of this research are as follows: (1) an earth tube system (total length approximately 125 m) is installed beside a house at a depth of 2 m to reduce excavation costs; (2) measurements are taken under the condition of a ventilation rate of 0.33?times/h (ventilation air volume, approximately 260 ?/h), which represents a fresh air load reduction and (3) the sensible and latent heat of the heat extraction in summer and the heat addition in winter under Hokuriku climate conditions in Japan are analyzed. The thermal effect of an earth tube system in summer is larger than in winter. The peak in heat extraction by the earth tube system was -1722 MJ/month in July and the latent heat portion of -906 MJ/month has exceeded the sensible heat portion of -866 MJ/month. |
