| Title |
Design of Chilled Water Temperature Condition of Large Temperature Differential Chiller for Saving Building Energy |
| Authors |
Jeong Tak Jin ; Youn Jin Seok ; Hong Jae Cho ; Sul Geon Choi ; Dong Kon Hwang |
| DOI |
https://doi.org/10.6110/KJACR.2023.35.2.090 |
| Keywords |
건물 에너지; 냉수; 에너지절감; 대온도차 냉동기 Building energy; Chilled water; Energy saving; Large temperature differential chiller |
| Abstract |
The purpose of this study was to determine chilled water temperature. Conventionally, a design of chilled-water temperature differential across cooling coils of 5℃ was used, which resulted in a flow rate of 2.6 L/min per kW. In recent years, due to increasing demand for zero-energy building, carbon neutrality 2050 has led to a reexamination of the design used in selecting chiller system with a goal to reduce energy consumption. Large temperature differential chiller is considered by MEP Engineers. The chiller system is designed by reducing circulation water with a chilled-water temperature differential above 7℃. Increasing temperature differential can reduce circulation water by the law of conservation of energy. Reducing chilled-water flow rates can save energy, operating cost, and pipe installation cost. |