Roslizar Aiman, Alghoul M A, Bakhtyar B, Asim Nilofar, Sopian K
Mechanical Engineering Faculty, Universiti Teknikal Malaysia Melaka, 76100 Melaka, Malaysia.
Solar Energy Research Institute, Universiti Kebangsaan Malaysia, 43600 Bangi, Malaysia.
ScientificWorldJournal. 2014;2014:310539. doi: 10.1155/2014/310539. Epub 2014 Nov 18.
Buildings are among the largest consumers of energy. Part of the energy is wasted due to the habits of users and equipment conditions. A solution to this problem is efficient energy usage. To this end, an energy audit can be conducted to assess the energy efficiency. This study aims to analyze the energy usage of a primary school and identify the potential energy reductions and cost savings. A preliminary audit was conducted, and several energy conservation measures were proposed. The energy conservation measures, with reference to the MS1525:2007 standard, were modelled to identify the potential energy reduction and cost savings. It was found that the school's usage of electricity exceeded its need, incurring an excess expenditure of RM 2947.42. From the lighting system alone, it was found that there is a potential energy reduction of 5489.06 kWh, which gives a cost saving of RM 2282.52 via the improvement of lighting system design and its operating hours. Overall, it was found that there is a potential energy reduction and cost saving of 20.7% when the energy conservation measures are earnestly implemented. The previous energy intensity of the school was found to be 50.6 kWh/m(2)/year, but can theoretically be reduced to 40.19 kWh/mm(2)/year.
建筑物是能源的最大消耗者之一。部分能源因用户习惯和设备状况而被浪费。解决这个问题的一个办法是高效利用能源。为此，可以进行能源审计以评估能源效率。本研究旨在分析一所小学的能源使用情况，并确定潜在的能源减少量和成本节约情况。进行了初步审计，并提出了几项节能措施。参照MS1525:2007标准对节能措施进行建模，以确定潜在的能源减少量和成本节约情况。结果发现，该校的用电量超过了需求，导致额外支出2947.42马来西亚林吉特。仅从照明系统来看，通过改进照明系统设计及其运行时间，发现有5489.06千瓦时的潜在能源减少量，成本节约2282.52马来西亚林吉特。总体而言，当认真实施节能措施时，发现有20.7%的潜在能源减少量和成本节约。该校之前的能源强度为50.6千瓦时/平方米/年，但理论上可降至40.19千瓦时/平方米/年。
