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Öğe Empirical modeling between degree days and optimum insulation thickness for external wall(Taylor & Francis, 2020-03) Karakaya, Hakan; Kallioğlu, Mehmet Ali; Ercan, Umut; Avcı, Ali Serkan; Fidan, CihatInsulating is the most effective method that is used to save energy in buildings. Samples from cities from different climatic zones from TS 825 (Turkey) first. Optimum insulation thickness () analysis is based on two types of insulating and four different fuels (natural gas, coal, fuel oil and electric) of related cities. Cost accounts, payback period and CO2-SO2 emission calculations were performed based on these analyses. Second of all, the relationship between a number of degree day (NDD) and optimum insulation thickness () was developed by linear, quadratic and cubic correlations. Thirty different mathematical correlations based on different fuel types by using XPS and EPS insulating materials. Twenty-four of these models that were developed were generated peculiar to the fuel type; six of them were generated based on average insulation thickness. R2 values of related correlations are between 0.9989 most and 0.9952 at least as well as it is pretty close to (R ≤ 1) one value. The model among these models is the cubic mathematical model that gives the best average value. a = 0.0036, b = 5E-05, c = – 7E-09 and d = 6E-13 are the values for XPS material. Following values are for EPS material; a = 0.0028, b = 5E-13, c = – 7E-09 and d = 4E-05. R2 determination coefficient of both two equations is pretty close to 0.9989 and 1; the models obtained are less-than-stellar. Optimum insulation thickness of the area can be known based on the type of material via the number of degree day without the need for long analyses. According to the R2 values, the use of all models is recommended for academic and industrial users.Öğe Environmental and economic analysis of optimum heat insulation thickness in energy saving(European Journal of Technique (EJT), 2016-08-01) Karakaya, Hakan; Kallioğlu, Mehmet Ali; Arca Batı, Zülal; Durmuş, AylaDeveloping technology and increasing population cause the natural energy resources rapidly. This has compulsorily forced the countries such as Turkey, which import almost all energy needs and use great deal of it in home heating, to save energy. It will provide benefits for users, indirectly the economy of the country, with saving obtained from insulation. One of the most effective methods attaining gain of energy is heat insulation. While heat insulation is carried out, by determining the optimum efficiency point, the amount of fuel used decreases, which leads to cost reduction and highest efficiency level. Therefore, it is possible to tolerate harmful emissions. In this study, optimum insulation thickness, total cost, energy saving, duration of pay-back and environmental analysis for heating were conducted in Diyarbakır by utilizing different fuel and insulation types. When extruded polystyrene (XPS) was used, average optimum thickness was 0,0675 (m), annual return was 62,165%, duration of pay back was 1,83 (years) and CO2 and SO2 emissions were 76% lesser. When expanded polystyrene (EPS) was used, the parameters such as average optimum thickness 0,0825 (m), annual return 73,06%, duration of pay back 1,245 (years) and CO2 and SO2 emissions 85% lesser.Öğe Environmental and economic analysis of optimum heat insulatıon thickness in energy saving(Dicle University, 2016) Kallioğlu, Mehmet Ali; Karakaya, Hakan; Arca Batı, ZülalDeveloping technology and increasing population cause the natural energy resources rapidly. This has compulsorily forced the countries such as Turkey, which import almost all energy needs and use great deal of it in home heating, to save energy. It will provide benefits for users, indirectly the economy of the country, with saving obtained from insulation. One of the most effective methods attaining gain of energy is heat insulation. While heat insulation is carried out, by determining the optimum efficiency point, the amount of fuel used decreases, which leads to cost reduction and highest efficiency level. Therefore, it is possible to tolerate harmful emissions. In this study, optimum insulation thickness, total cost, energy saving, duration of pay-back and environmental analysis for heating were conducted in Diyarbakır by utilizing different fuel and insulation types. When extruded polystyrene (XPS) was used, average optimum thickness was 0,0675 (m), annual return was 62,165%, duration of pay back was 1,83 (years) and CO2 and SO2 emissions were 76% lesser. When expanded polystyrene (EPS) was used, the parameters such as average optimum thickness 0,0825 (m), annual return 73,06%, duration of pay back 1,245 (years) and CO2 and SO2 emissions 85% lesser.
