The aim of this study is to experimentally grasp distribution of incident heat flux from opening fire plume ejected from horizontal opening to vertical wall. The effect of estimated excess fuel gas has been discussed. The main results are as follows.

1. 𝐿_{𝑓,𝑡𝑖𝑝,𝑒𝑥𝑝} ∕(𝐻−𝑍_𝑛) increased with 𝑄^∗_{𝑒+𝑒𝑓,𝑤} to 2/3 power.

2. Incident heat flux attenuated gradually when 𝑧/𝐿_{𝑓,𝑡𝑖𝑝,𝑒𝑥𝑝} is under around 0.4 and attenuated distinctly when 𝑧/𝐿_{𝑓,𝑡𝑖𝑝,𝑒𝑥𝑝} is over around 0.4.

3. Incident heat flux generally exhibit a tendency gathering around a curve related with 𝑍^∗/𝑄^∗_{𝑒+𝑒𝑓,𝑊} ^2⁄3.

Phase Change Material utilizes direct gain to absorb solar radiation during the day and dissipate it at night, resulting in energy savings. However, narrow-detached houses with little solar radiation acquisition due to neighboring buildings may not absorb heat sufficiently, resulting in low room temperatures, and there is little knowledge of PCM utilization in such environments. In this study, the effect of reducing air conditioning power consumption in winter of the system of storing heat in PCM by hydronic floor heating using solar power generated on the roof surface for its own consumption is verified from a systematic heat load simulation.

In a food factory, it is important to keep working environment clean. Therefore, HACCP was introduced to Japanese food company in 2018 and all food factories in Japan need to achieve an appropriate environment. In this study, CFD simulation was used to compare the thermal environment, air conditioning load, and dew condensation between conventional air conditioning systems and ceiling-supplied displacement ventilation systems. Furthermore, in ceiling-supplied displacement ventilation systems, appropriate ventilation volume and insulation performance of the exterior skin was examined from the viewpoint of dew condensation suppression.

In this study, according to AIJES, the odor standard value of sidestream smoke of cigarettes and other than mainstream aerosol of heated tobacco products (HTPs) was examined. The acceptability of each odor sample was examined by 60 panels who passed the selection test, and the odor concentration of the unacceptable rate of 15%, 20%, and 30% was indicated. The results showed that the standard values of other than mainstream aerosol of HTPs were 1.2～1.5 times higher than standard values of AIJES, and indicating that HTPs was more acceptable at higher concentrations than cigarettes.

We distributed portable anemometers to the residents of Musashi-Kosugi area, Kawasaki city, Kanagawa prefecture and conducted a field investigation concerning the wind environment. The participants were asked to measure wind speed anytime anywhere in the Musashi-Kosugi area and freely describe the things they observed and their impression about the wind at that time. Using the wind speed data measured by the participants and the descriptive information (i.e. impression on the things they saw and the wind), a new wind force scale was proposed.