Regional Characteristics Transition of Winter Thermal Performance and Occupants' Behavior of Detached Houses in Tohoku City Area for 20 Years

Abstract

Indoor thermal environment ， energy consumption and occupant 「 s behavior of 620 detached houses in 12cities ofTohoku dis 廿ict were investigated in the winter of2002 by mcans of the questionnaire and the measurement using liquid crysta1 therrnometers ， The same investigations have been perforrned at an i ' nten ・ al of 10years since l982 ， The pゆ ose of this stUdy is to grasp the trend of indoor thermal environment and energy consumption in houses， fblm the view of the change fbr 20 years ， and to obtain more infommation en the indoor enviroment design in the future ． This paper describes the change fbr 20 years of indoor temperatures ， occupants ' behavior and kerosene consumption d曲 g the heat 血 g season in each cities ， and analyzed resUlt on regional characteristics of winter therrna1 perforrnance ． As a reslut ， it was concluded that cities of Tohoku area could be divided into three groups from the viewpolnt ofthemlal perfbn 皿 ance and occupant 「 s behavior ． Aomori was similar to Sapporo， and these of TohokU city area become more and more like Sapporo duhng 20 years ，

The dynamics of thermal comfort expectations: The problem, challenge and impication

“…Long-term trends in winter-time residential temperatures in the UK, the US, Japan and northern China (based on reference[29,30,31,32,33]). …”

“…ASHRAE comfort zone for winter (based on reference[11]) Increasing trend of Air Conditioning (AC) units in the US and China (based on reference[26,27,28]Long-term trends in winter-time residential temperatures in the UK, the US, Japan and northern China (based on reference[29,30,31,32,33]). …”

Indoor climate experience, migration, and thermal comfort expectation in buildings

“…It shows that typical indoor winter temperatures in these countries are narrowing over time, converging to some neutral temperature of about 20 o C. Some researcher even named this trend as 'homogenization of built environment' [9] and 'comfort capsules' [10]. § Figure 2 Historical trends of wintertime residential temperatures (US 1988(US -2008 and UK Sources are based on the review work of [11]; US 1800s [12]; Northern Japan [13]; China [14,15])…”

Indoor environmental problems and health status in water-damaged homes due to tsunami disaster in Japan

“…In the surveyed area, single glazing on openings are used in more 50% of houses, and the thermal performance of building envelopes in these houses may be low. This trend is common to houses in Tohoku District including the damaged area by tsunami disaster [37]. In flood-damaged homes, only 9.8% of homes operated a mechanical ventilation system all the time and 67.2% operated it intermittently.…”