Abstract:
Hospitals energy policy and planning was studied for the Chaoprayayommarad Hospital by analyzing and identifying according to the Energy Conservation Promotion Act, B.E. 2535 (Revised Edition, B.E. 2550. The Chaoprayayommarad hospital was 602 beds and 1,525 staffs. The total working hours account for 8,760 hours per year. The energy consumptions consisted of air system (71.93%), light system (17.39%) and others (10.69%). According to the sample collections in each system, the major cause of the huge amount of energy usage within hospital was the machine deterioration from long-term usage as the hospital has been established since 1962. Thus, changing the new machine was recommended as the energy saving measures, to help enhancement of the energy efficiency of machines and thus reducing the electric energy consumption. The Chaoprayayommarad hospital has implemented 8 step policies of the Energy Conservation Promotion Act. Due to the implementation of this measure, the total energy consumption was decreased by 13.3%. After the measurement and analysis of energy usage in air conditioning system and lighting system. The 4 energy measures that was worthiness were: 1) The replacement of light bulbs from 18 watt T8 to 10 watt LED resulted in payback period of 1.1 month. 2) The replacement of 5.27 kW split type air conditioner with a new one which EER was 3.49 W/W resulted in payback period of 1.1 year. 3) The replacement of 72 TR old water Chiller to a new one which COP 2.9 W/W resulted in payback period of 4.4 years and 4) The installation of VSD to control speed of water pump from 50 Hz to 34 Hz resulted in payback period of 7 months.