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Language: korean

Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received March 9, 2006
Accepted June 20, 2006

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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지능형 헬스케어 욕조시스템 개발을 위한 온수 온도변화

Change of the Warm Water Temperature for the Development of Smart Healthecare Bathing System

김기범^†

Gi-Beum Kim^†

전북대학교 공과대학 생체정보공학부·공학연구원 공업기술연구센터·실버공학연구센터, 561-756 전북 전주시 덕진구 덕진동1가 664-14

Division of Bionics and Bioinformatics, The Research Center of Industrial Technology, The Research Center of Silver Engineering,Engineering Research Institute, College of Engineering, Chonbuk National University, 664-14, Duckjin-dong 1ga, Duckjin-gu, Jeonju, Jeonbuk 561-756, Korea

kgb70@chonbuk.ac.kr

Korean Chemical Engineering Research, June 2006, 44(3), 270-276(7), NONE Epub 19 July 2006

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Abstract

본 연구에서는 전도열손실과 증발에 의한 열손실을 바탕으로 욕조의 자유표면에서 일어나는 온수의 열손실을 해석하고자 한다. 연구결과 욕조의 성능을 평가할 수 있는 식을 열전달 기본식으로 부터 관계식을 도출하였으며 이식은 매우 시성적이며 정량적이었다. 특히 욕조 내 온수의 냉각은 증발에 의한 열손실이 지배적이었다. 또한, 온수의 온도 냉각 속도는 온수의 온도에는 크게 영향을 받지 않으나 욕실의 습도에 따라 크게 영향을 받는 것으로 확인되었다. 그러므로 욕조의 온도는 41~45 °C를 유지하며 욕실의 습도가 95％를 유지하는 것이 가장 효과적이라 판단된다.

In this study, heat loss through free surface of water contained in bathtub due to conduction and evaporation has been analyzed. As a result of this study, a relational equation has been derived based on the basic theory of heat transfer to evaluate the performance of bath tubes. The derived equation was rational and quantitative. The major heat loss was found to be due to evaporation. Moreover, it has been found out that the speed of heat loss depends more on the humidity of the bathroom than the temperature of water contained in the bathtub. So, it is best to maintain the temperature of bathtub water to be between 41 to 45 °C and the humidity of bathroom to be 95％.

Keywords

Bathing System Heat Transfer Evaporation Heat Loss Conductivity Heat Loss Evaporation Latent Heat

References

Kim YC, Yu M, Kim HJ, Kwon TK, Hong CU, Kim NG, “Analysis of Thermal Environmental System in the Bathroom,” 2005 Spring Joint Confcrence of ESK & KOSES, and The 8th Korea Japan Joint Symposium on Ergonomics, 375-378 (2005)
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