|1. Field Study of indoor air quality in residential house at Niigata prefecture.|
The investigationof indoor chemistry concentration and questionnaire survey of a consciousness
of occupants are conducted. The purpose of the investigation is to clarify the relationship between
life styles, air tightness and indoor air quality
(1) About 60 percents of residentsat this time know a “sick house” and “chemical sensitivity”.
(2) When air tightness improves,indoor air formaldehyde concentration becomes high.
(3) When the age of house is old, indoorair formaldehyde concentration becomes low.
(4) Life style of residents hasalso high influence on indoor air pollution.
|2. Study on highly efficient ventilation and air conditioning system by considering the distribution
of fresh air.
In an air conditioning office building, the ventilation air is normally mixed with return air from the room within an air
The CFD simulation was carried out to compare the age of air and the concentration of contaminant between two
|3. The validation for the prediction accuracy of CFD technique for the flowfield around buildings.|
The wind tunnel experiment for two rectangular buildings model with the scale ratio of 2:1:1 in parallel arrangement
|4. Researchon the validity of photovoltaic generation in Tohoku district|
|The purpose of this research is to make the map of solar power generation of the whole country of Japan... Then in
this research we calculate the effects on an economical and environmental evaluation when solar power generation
was introduced in detached houses. To evaluate the system of solar power generation effectively, investigation of the
energy consumption and of the measurement of electric energy consumption are carried out. The effects of solar
power generation are examined by comparing it with the electric energy consumption that was consumed in detached
houses. The effects on an economy and environmental evaluation are examined by introducing the detached houses
in seven prefectures in Tohoku area of Japan. Finally the validity of the system of solar power generation is examined.
|5.Detail survey of long term energy consumption and thermal environment for many houses in
principal cities of Japan
In order to obtain the fundamental information for discussing residential energy saving strategies, long term
|6. Study on the evaluation method of a cross ventilated building performance.|
In this study, we evaluate cross ventilation by the multi zone network air flow simulation and the CFD. Cross-
The multi-zone airflow network model analysis using TRNSYS-COMIS simulate the indoor temperature. Two
This study can report the evaluation index of natural cross ventilation performance.
|7.Experimental and numerical study on kitchen ventilation.|
This study was conducted by experimental and numerical method to analyses the ventilation efficiency for