日本建築学会環境系論文集
Online ISSN : 1881-817X
Print ISSN : 1348-0685
ISSN-L : 1348-0685
空調制御による夏期の睡眠環境に関する研究
全熱交換型全館空調住宅における影響
岩城 朱美秋元 孝之古橋 拓也
著者情報
ジャーナル フリー

2020 年 85 巻 777 号 p. 871-880

詳細
抄録

 It is common to use an air conditioner as a summer sleep measure to improve the quality of sleep; when using an air conditioner at night, however, having an air conditioning control that does not affect people is necessary as concerns about adverse effects on one’s physical conditions exist. The purpose of this study is to investigate the thermal environment that can influence satisfactory sleep and to create a comfortable sleep environment. We compared individual air- conditioning (room air-conditioning), which allows for rapid temperature changes as well as entire-room air conditioning, using a total heat exchange ventilation system, and investigated their effects on sleep.

 In this study, we conducted an experiment in a whole-house air-conditioned model house in Tokyo in the summer. As previous studies have not shown the effect of whole-building air conditioning control on sleep, we conducted a subject experiment with the aim of grasping the indoor environmental conditions at bedtime so as not to cause thermal discomfort to the human body while improving its sleep. Using the entire building air-conditioning model house, which is compliant with the 2016 energy saving standard, the relationship between the thermal air flow control during sleep and the psychological as well as physiological state of the subject was clarified. As an air conditioning comparison, individual air-conditioning (room air-conditioning) was used a condition. The participants were six young men in their twenties, four of whom were used in the analysis.

 As a result, the quality of sleep (δ power) was improved by the whole-house air-conditioning, which was controlled in a step-by-step manner. In contrast, sleep latencies were affected by sudden temperature changes. Therefore, it can be reasonably stated that to control the temperature gently without causing a sudden temperature drop at the time of falling asleep creates a comfortable sleep environment.

 In addition, as a significant relationship between subjective evaluation and the measured values was recognized, the temperature setting performed in this experiment is considered suitable for a sleep environment.

 As other physiological quantities, such as heart rate, decrease with deepening sleep, the parasympathetic nerves predominate and tension is relaxed; thus, it is presumed that this is closely related to the δ power. In the future, it is predicted that the use of air conditioning that automatically controls temperature over time will progress.

著者関連情報
© 2020 日本建築学会
前の記事 次の記事
feedback
Top