Title:Computer Aided energy efficient Design: Evaluation of optimum orientation for residential buildings in Pakistan.
Abstract
The buildings start utilizing energy in various forms from the constructional work to the operational use. There is a need to conserve energy to save the resources and environmental catastrophe. One of the primary features of passive design is the orientation of a building on a particular location. As the client of IT era demands for testing, validity, practicality, authenticity and sustainability of a building project before execution, the computer based simulations are the only practical way to predict the complex energy performance and cost analysis for a large number of passive design solutions. 
This paper presents the investigational study at Lahore, 32 deg. N, Pakistan, to predict the optimum orientation w.r.t. minimum energy consumption in a residential building with the help of computer based program to validate the measured temperatures.
This paper concludes the optimum positioning of living spaces w.r.t. their orientation in a layout of a residential building which was not possible without the involvement of the digital design tool.
