部分加熱되는 空間의 室內溫度 分布에 관한 실험적 硏究 = Experimental Study on the Indoor Air Temperature Distribution in the Partially Heated Room

다국어 초록 (Multilingual Abstract)

This study shows how the variation of size, position and temperature of a heated floor has an effect on the behavior of vertical indoor air temperature distribution and the formation of comfort condition. And a scaled-down model which has a similarity to the real model in the all kinds of physical properties is made and used for the experiment.
The test has done under the condition of three floor surface temperatures, 30, 36 and 42, five sizes of heating area, 20%, 40%, 60%, 80% and 100%, and three types of heating position, L&R, LorR, and C.
The summaries of the study are as follows;
① It is general that L&R type is more effective than LorR type and C type for keeping out the cold air from envelopes and also the iso-thermal line of indoor air temperature is uniform in L&R type.
② In case of C type it is found that the indoor air temperatures at some points are recorded more highly than other types. And when the ratio of heated floor area to total floor area is 20% and 40%, the distribution of ndoor air temperature take shapes of recipro-triangle.
③ At the heating area less than 60% the indoor air temperature distribution is affected by where the heating position is but at over 60% the position of heating has a little effect on the distribution of indoor air temperature
④ When heated the floor partially, 60-80% of total floor area, its energy efficiency is better than total floor heating method.
⑤ Judging from the test results, the partial heating method with 60% of floor area, 30 of floor surface temperature and L&R type of heating position is the most effective in the matter of energy use.
⑥ It total floor heating method the comfort range of floor surface temperature becomes stable at about 30.
From the above mentioned results it is possible to estimate that the range of thermal comfort of indoor air temperature and surface temperature of floor will be fullfilled by the partial heating system as well as total floor heating system. It means that the active research on partial heating system is needed to reach the goal of energy saving in residential building in the coming years.