Browse > Article

The Freezing Process of the Water Supply Pipe in an Exterior Wall  

Kang, Han-Gi (Department of Mechanical Engineering, Graduate School of Hanyang Univ.)
Lee, Jae-Heon (Department of Mechanical Engineering, Hanyang Univ.)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.19, no.11, 2007 , pp. 782-788 More about this Journal
Abstract
In this paper, the freezing process of the water supply pipe in the exterior wall of an apartment house was analyzed by numerical method. The thickness of the pipe insulation and the percentage of insulation damage were considered as parameters in this paper. In the cases of the 0%, 8% and 20% damaged of the 5mm thickness insulation, the freezing was completed after 13 hours, 10 hours and 7 hours respectively. And in cases of the 10mm thickness insulation, the freezing was completed after 18 hours, 10.5 hours and 8 hours respectively. As a result, it is predicted that the water freezing would occurred when the water supply pipe with 8% or 20% damaged insulation are installed in the exterior wall. However, the water freezing would not occurred when the water supply pipe with 10mm thickness insulation of 0% damage is installed in the exterior wall.
Keywords
Freezing; Water supply pipe; Pipe insulation; Exterior wall; Bathroom;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 SAREK, 1996, Development of the standard computer software and weather data for cooling and heating load calculation, Ministry of Commerce, Industry and Energy
2 KNHC, 2003, Building equipment design handbook, Korea National Housing Corporation
3 SAREK, 2005, Building mechanical system design guidelines, Ministry of Construction & Transportation
4 Hibbert, S. E., Markatos, N. C. and Voller, V. R, 1988, Computer simulation of moving-interface, convective, phase-change processes, Int. J. Heat Mass Transfer, Vol. 31, No.9, pp.1785-1795   DOI   ScienceOn
5 Kim, H. K, Jeong, S. Y., Hur, N. K, Lim, T. W. and Park, Y. S., 2007, Numerical analysis of the melting process of ice using plate heaters with constant heat flux, Korean Journal of Air-conditioning and Refrigeration Engineering, Vol. 19, No.6, pp. 434-440   과학기술학회마을
6 KNHC, 2005, Technical Guidelines: Building Equipment, Korea National Housing Corporation
7 Swaminathan, C. R and Voller, V. R, 1992, A general enthalpy method for modeling solidification process, metallurgical transactions B, Vol. 23B, pp. 651-664
8 Kim, Y. H. and Park, J. W., 1999, The newest air conditioning system, Bomoondang, Inc