| Keywords |
Life Cycle Cost ; Energy Simulation ; Primary Plant Load ; Load Calculation |
| Abstract |
By increasing energy resource cost, the annual energy consumption for a HVAC has been an importantfactor as well as an initial cost of mechanic system to select a primary plant system. Hence, Life Cycle Cost (LCC)analysis is inevitable and needs to evaluate the efficiency of plant system. In this study, an economical efficiencyof various plant system was validated to present the optimized plant solution for the new hospital for children. Anannual HVAC energy consumption was calculated by energy simulation program (DOE 2.1E) and an economicefficiency of each plant system evaluated by LCC analysis method. The essential conclusions of this study are asfollows; 1) Because of many specific rooms which need 24hour HAVC, energy consumption per area of the designbuilding is higher than other buildings, 2) A totally hot and chilled water generator (HCWG) system (ALT-1) isthe most profitable system in the point of initial cost, However 3) Considering a annual gross energy bill, whichis fluctuated by energy source type and a initial cost of system, a composit system (ALT-2), a coupled system byan ice storage system and a HCWG system, is more effective than other systems during system life cycle, 4) Atotally absorption system (ALT-3) has no merits of installing the plant system in the point of initial and runningcost. Consequently, it is revealed that a composit system (ALT-2) is the most economical plant system for the newconstructed building. |