Variance in assessment and simulation for effect of double glass unit in built environment.

Due to number of parameters effect with varied variety in energy of the building, it is difficult to judge about the effect of different energy efficacy approaches without simulation implements. The study focus on the annual energy consumption of an residential building simulated in Design Builder software utilizing efficient double glazing window formation with respect to traditional window. The building is in composite climate and window to wall ratio kept is 50%. The authorization of simulation results through electricity records with simulation error in the range of 1.39% - 6.89 %. Two promising strategies are proposed to management for reduction in the energy consumption, first, replacement of traditional glass with low-e double glazed unit having argon gas and secondly by double glazed window formation having air as infill material. The simulations results showed the benefit reap out of these strategies are 36.1 % and 25.04% respectively. Further, economic assessment showed that the payback period for first and second strategy is 1.43 years and 1.73 years respectively. [ABSTRACT FROM AUTHOR]