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차광석(Kwang Seok Cha),김강석(Kangsuk Kim),조보람(Bo Ram Jo),장영(Yeong Jang),한창완(Chang-wan Han),이용춘(Yong Chun Lee),이명호(Myung-Ho Lee),박춘건(Chun Kun Park),이대우(Dae Woo Lee) 대한설비공학회 2009 대한설비공학회 학술발표대회논문집 Vol.2009 No.-
Current water distribution systems like branch type and separate type piping systems have still had some limitation with instability for temperature and flow rate when using multi water-taps simultaneously in a house and waste of water resources when using hot water. To improve these problems, we have developed a water-saving hot water piping system using thermo valve. The present study was undertaken in order to evaluate performance of the improved system compared with the existing system. The results show that our system restrains a waste of water and we can immediately use water at set temperature after 78~87 sec circulation. Also, in cases of using multi water-taps, average temperature deviation was below 0.6℃ and decrement of flow rate reduced over double.