| Title |
A Study on the Status and Improvement of Double Pipe System in Apartment Buildings |
| Authors |
김명석(Myoung-Seok Kim) ; 김영일(Youngil Kim) ; 정광섭(Kwang-Seop Chung) |
| DOI |
http://dx.doi.org/10.6110/KJACR.2013.25.1.037 |
| Keywords |
이중관 시스템 ; 폴리브틸렌 ; 전선 ; 공동주택 ; 콘크리트 압축강도 ; 열손실 Double pipe system ; PB ; CD ; Apartment ; Concrete compressive strength ; Heat loss ; |
| Abstract |
Double pipe system in which PB pipe is inserted in CD pipe buried in the concrete slab is widely used for cold and hot water supplies in apartment housings. The system, however becomes complicated and the overlaying pipes in the concrete slab weaken the compressive strength of the slab. Also, insufficient insulation increases energy loss. In this work, the problems of the double pipe system are studied and plans A, B, and C are suggested for improvement. In terms of compressive strength of the concrete slab, plan A(total pipe length 73 m) was the weakest and plan B(2 m) was the strongest. Energy loss of plan A was the largest with 558.9 W and plan B was the lowest with 220.7 W. However, considering the combined effect of strength and heat loss, plan C becomes the best choice, which retains the advantage of the double pipe system. |