Life cycle cost analysis of the buildings in Turkey related to energy consumption due to external wall insulation

Abstract

For five different climate zones which specified on Turkey building thermal insulation standard (TS 825) depending on the different thermal insulationmaterials, minimum insulation thickness, life cycle saving (LCS), life cycle total cost (LCT), energy saving (ES), and payback period of energy consumption for ten years are found. Then the life cycle saving (LCS), life cycle total cost (LCT), energy saving (ES), and payback period of the energy consumption are investigated according to optimum insulation thickness for the degree-day values base on the heating system efficiency and the cooling performance coefficient value (COP). Minimum insulation thickness and optimum insulation thickness are compared for life cycle saving (LCS) and life cycle total cost (LCT) depending on energy consumption and energy saving (ES). Extruded polystyrene (XPS), expanded polystyrene (EPS), glass wool, rock wool, and polyurethane are used as a thermal insulation material and electricity is used as an energy source.