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Calculation of Optimum Insulation Thickness Using the Heating Degree-Days Method for the Different Cost Approaches

Journal: International Research Journal of Advanced Engineering and Science (IRJAES) (Vol.3, No. 4)

Publication Date:

Authors : ;

Page : 189-192

Keywords : Heating degree days; life-cycle cost analysis; optimum insulation thickness; simple payback period.;

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In this study, the optimum insulation thickness to be applied to external walls was determined by using the heating degree days method for the different cost approaches. Calculations were made for a sample city in Turkey and extruded polystyrene (XPS) was used as an insulation material. By applying the simple payback method and life-cycle cost analysis, optimum insulation thickness, saving amount and payback period were calculated according to increased insulation thickness. As a result, the optimum insulation thickness was determined as 0.0689 m and 0.0558 m for simple payback method and life-cycle cost analysis, respectively. For the determined insulation thicknesses, the payback periods were varied between 7.09 and 9.23 years. Also, at the optimum insulation thickness, the saving amount was obtained between 20.35 USD/m2 and 35.58 USD/m2 depending on the cost analyses

Last modified: 2018-12-27 21:21:28