Reducing the Operational Energy Demand in Shopping Malls Buildings within Abuja, through Passive Design Approach
David L. Pogu1, Dr. A.J. Ango2
Department of Architecture, Faculty of Environmental Design
Ahmadu Bello University, Zaria, Nigeria.
Email: pogudave@gmail.com, aaronango@gmail.com
ABSTRACT
Buildings are responsible for at least 40% of energy used in most countries. In Nigeria construction activities has pervaded most urban centres as in the case of Abuja, buildings are design and build without considering the principles of passive design that will be peculiar to the local climate of the region. The following methodology were followed, all the selected 3 case studies were visited for a field survey, interviews were conducted photographs were taken, notes and sketches were collected. Ceddi Plaza Abuja and Silverbird Entertainment Centre Abuja (i.e. Case study 1 and 2) were modelled and analysed with the aid of Autodesk Ecotect Analysis simulation software to determine the annual operational energy demand of the buildings. The simulation results show that case study 1 and 2 has a total annual operational energy consumption of 192.497kwh per square meter and 164.134kwh per square meter respectively, this results indicate that case 2 is more apply more passive design principles than case study 1. Furthermore, at the end of the research the proposed shopping design was simulated and the results indicate a decrease in the annual operational energy demand by 36.3% and 24.3% with respects to case study 1 and 2. Therefore building simulation and investigating the performance of the building virtually in the pre-construction stage will help architects and other consultants to apply suitable passive design principles that will suit a particular local climate and reduces the building annual operational energy demand. Keywords: Operational Energy Demand, Passive Design, Energy Consumption, Natural Ventilation, Shopping mall, Sustainability
