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Title:	Passive design strategies towards energy efficiency in existing large-scale hospital of Universiti Kebangsaan Malaysia Medical Centre
Authors:	Saeid Moghimi (P54680)
Supervisor:	Solar Energy Research Institute
Keywords:	Passive design strategies Energy efficiency Existing large-scale hospital Universiti Kebangsaan Malaysia Medical Centre Universiti Kebangsaan Malaysia -- Dissertations
Issue Date:	26-Jun-2014
Description:	Energy efficiency plays a key role in reducing world energy consumption. This would lead to decreasing greenhouse emissions as well as global warming. Buildings with efficient energy consumption will result in positive impact to the environment. Hospitals utilize high levels of energy due to their round-the-clock operation. Cooling constitutes the largest portion of end-use energy in Malaysian air-conditioned hospitals. The main objective of this study was to achieve energy reduction by applying passive strategies to the hospital. Universiti Kebangsaan Malaysia Medical Centre (UKMMC) is a large-scale hospital in Malaysia. It was selected for this case study. The total built-up area of this hospital is 240000 m2. The average annual electricity consumption over 2009 to 2011 was 41379 MWh, of which 62% was utilized by the cooling systems. The annual electricity cost of bills is nearly an average of RM 14,000,000. Firstly, field energy monitoring and energy audit were carried out. Subsequently, a base case model was software-simulated. IES (Integrated Environmental Solution) was software used to simulate the energy performance of the hospital. Next, the software was validated and the energy consumptions from the base case model were compared to the field study measurements. Moreover passive strategies were applied using software models. The energy performances of each strategy were also simulated. Shading, glazing and insulation as passive strategies in hot and humid climates were applied to the envelope of the hospital. Economic analyses such as life cycle cost and payback period time were calculated. The results indicated that applying shading devices can reduce solar gain by 802 MWh and save 219 MWh of electricity. The annual cost saving was RM 74,513 and payback period was 5 years. The optimum glazing model was double low-e glass yielded 1854 MWh solar gain reduction along with 659 MWh electricity and RM 224,145 annual savings with a 4-year payback period. Moreover applying mass insulation in external walls resulted in 340 MWh of electricity and RM 115,900 cost saving with a 11-year payback period. It can be concluded that passive strategies are adequate in reducing energy consumption, thus resulting in energy efficiency in hospitals.,PhD
Pages:	221
Publisher:	UKM, Bangi
Appears in Collections:	Solar Energy Research Institute / Institut Penyelidikan Tenaga Suria (SERI)

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