| Title |
Flow Distribution Characteristics According to Variation of Flow Resistance in the Header Supplying Working Fluid to Multiple Fan Coil Units |
| Authors |
Jinsub Kim ; Ji Hwan Jeong |
| DOI |
https://doi.org/10.6110/KJACR.2021.33.8.413 |
| Keywords |
유량분배; 유동저항; 유량계수; 팬코일유닛; 냉난방시스템 Flow distribution; Flow resistance; Flow coefficient; Fan coil unit; Heating and cooling system |
| Abstract |
If a working fluid is not properly distributed in a heating and cooling system, the energy loss will increase. The flow distribution is affected by the flow resistance of piping, valves, heat exchangers, and so on. In addition, flow distribution can be controlled by the change of flow resistance of valves. Therefore, it is necessary to study flow distribution considering the flow resistance. In the present study, a numerical flow network model was developed to predict the flow distribution in a flow distribution system supplying the working fluid to multiple fan coil units. The flow resistance generated in each channel was represented by the valve flow coefficient. The variation of flow distribution was analyzed by changing the flow coefficient. The numerically predicted flow distribution was compared with experimental data for validation of the flow network model. |