| Keywords |
Flow balancing ; Heating pipe network ; Hot-water distribution ; Radiant floor heating |
| Abstract |
The structural characteristics of high-rise buildings have allowed a household space to be enlarged but to be more complicated. This has caused fluctuation of thermal load in relation to orientations to be increased. As a result, there are greater inequalities in room temperatures among rooms in a household space. Judging from the heating medium characteristics of the radiant floor heating system, the most efficient way to reduce such inequality of room temperatures among rooms in a household space is through optimal distribution of hot-water in accordance with the fluctuation of thermal load through a heating pipe network. In this study, we performed measurements and analyses of flow rate of the heating pipe network of existing residential buildings through a field survey in order to find out the actual conditions and the existing problems. In addition, we compared the performance of existing pipe network with hot-water distribution systems equipped with automatic flow limiting valves and/or balancing valves and performed analysis thereon through computer simulation for heating pipe networks. |