Browse > Article
http://dx.doi.org/10.7735/ksmte.2016.25.1.54

Numerical Study on the Discharge of Humidity in the Drum of a Washing Machine  

Jung, Chung-Hyo (Samsung Electronics Co., Ltd.)
Sohn, Deok-Young (Department of Mechanical Engineering, Ajou University)
Na, Seon-Uk (Samsung Electronics Co., Ltd.)
Choi, Yun-Ho (Department of Mechanical Engineering, Ajou University)
Publication Information
Journal of the Korean Society of Manufacturing Technology Engineers / v.25, no.1, 2016 , pp. 54-61 More about this Journal
Abstract
Washing machine manufacturers typically advise consumers to maintain the relative humidity in the drum less than 80% for three days after the termination of a washing cycle in order to prevent bacteria proliferation. A vent installed in the back of a washing machine is used to release moisture to satisfy this condition. Up to now, the design and installation of the vent have been based on experiments without understanding its roles and physical phenomena. In this study, various CFD results are presented in order to explain the physical mechanism of moisture release in a washing machine. Two methods of moisture release (diffusion and convection) were studied; diffusion was found to be the dominant process in removing moisture. Experiments were also performed to validate this behavior. In addition, this study will aid in the efficient design of vents to keep the relative humidity low inside the drum.
Keywords
Washing machine; Relative humidity; Mass fraction; Vent; Convection-diffusion; Computational fluid dynamics;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Kim, J. Y., Noh, K. C., Oh, M. D., 2002, Study on the Performance Evaluation of the Air-tightened Exhibition Case in the Museum, Korean Journal of Air-conditioning and Refrigeration Engineering, 14:2 184-190.
2 Kim, J. Y., Oh, M. D., 2003, Analysis of Dynamic Humidity Control Characteristics of Museum Showcase with Adsorption Material, Korean Journal of Air-conditioning and Refrigeration Engineering, 15:12 1070-1077.
3 Lee, K. S., Lim, K. O., Ahn, K. H., Jung, Y. S., 2001, Analysis of Temperature and Humidity Distribution in a Dry Room, Korean Journal of Air-conditioning and Refrigeration Engineering, 13:6 524-532.
4 Ji, M. K., Bae, C. W., Chin, J. H., Jeong, H. M., Chu, M. S., Chung, H. S., 2000, Numerical Analysis for Temperature and Humidity in Bed Mattress, Proceeding of the Summer Conference on Society of Air-conditioning and Refrigerating Engineers of Korea, 56-61.
5 Kim, T., 2001, Indoor Cooling/Heating Load Analysis Based on Coupled Simulation of Convection, Radiation, and HVAC System Control for Attaining a Given PMV Value, Proceeding of the Spring Conference on Architectural Institute of Korea, 21:1 673-677.
6 ANSYS, 2011, ANSYS FLUENT 13.0 - User's Guide, ANSYS, Inc.
7 The Japan Society of Mechanical Engineers, 1997, JSME Data Book: Thermophysical Properties of Fluids, The Japan Society of Mechanical Engineers, Tokyo, 162.