Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : October 08, 2022 - October 09, 2022
This paper numerically investigates the mechanism of effective heat insulation characteristics on five fundamental models. The numerical model with two chambers cold and hot is divided by airflows, which have constant temperature 30 ℃ with flow velocities, 0, 2.5, 5, and 10 m/s to evaluate heat insulation performance. Two-dimensional simulation was conducted to obtain heat transmission coefficients playing a crucial role in evaluating heat insulations. As a result, it is found that heat transmission coefficients decrease in proportion to velocity of airflows and that the air curtain system is promising to enhance the heat insulation performance.
