Performance Simulation of Residential Building Envelope with Real Environment in Thimphu, The Capital City of Bhutan

Buildings are one of the worlds largest consumers of energy and also there are many strategies to reduce the energy consumptions in the present era. The strategies can be applied right from the design phase for the new buildings and retrofits can also be done to the old buildings. In-order to apply the best strategies of energy consumption reduction and to understand building energy consumption pattern, needs to carry out Energy performance of the buildings. Energy performance of building can be evaluated by measuring energy consumptions or performing simple or detailed simulation. In this study, one of the buildings from Ministers Enclave of Bhutan is selected as model building. The simulation was carried out to evaluate the building performance by creating different scenarios based on building envelope. The different scenarios were created for simulation purpose only. The energy saving were deduced by comparing the output result obtained from simulation in EnergyPlus. The EnergyPlus and DesignBuilder were eTools used for simulation. The EnergyPlus as the main simulation engine and DesignBuilder as Graphics User Interface for EnergyPlus. All the output from the simulation was analyzed and details were presented in the subsequent sections.