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25,085,000 Yen (FY1993 8,794,000 Yen)
To clarify the regional characteristics of the thermal performance of the houses and the occupant's behavior in winter time a survey using questionnaires was conducted focusing on Tohoku district and Sendai area. Comparison study with the result which observed ten years before showed living quality of Tohoku district is improving toward the level of living quality in Sapporo.
Statistical analysis to clarify the energy consumption trend from residential sector in Sendai and future emission estimation was conducted.Energy consumption trend from residential sector in Sendai was analyzed. In Sendai city gas consumption has been increasing. Future trend of carbon dioxide from household in Sendai is also estimated. The carbon monoxide emission from household in Sendai in 1990 is estimated 801 (1000tons/Year), in 2000 is 1,020, in 2010 is 1,049. After 2000 increasing speed will be decreased. Annual increase of total emission between 1990 to 2000 is 3.59% and between 2000 to 2010 it is 1.29%.
A series of wind tunnel Study was also conducted to clarify the relationship between model house locating interval and natural ventilation rate of house. Pressure differences were measured at four pairs located at wall and roof. Air change rate per hour decreases as model interval decrease due to the decrease of pressure difference especially at wall point measurement between windward wall and leeward wall. On the contrary when air comes from windward roof air change rate per hour showed small difference against the changes of model interval.
Domestic energy consumption, Residential environment, Urban environment