Abstract
Thermal insulation is one of the most effective techniques to save energy in terms of heating and cooling in buildings. In terms of energy savings and providing thermal comfort conditions, the insulation material chosen, and the optimum insulation thickness determined are critical. Many studies have been conducted to establish the ideal insulating thickness. The thermal conductivity coefficient (k) of the insulating material is acquired directly from standardized tables in this research, and the best insulation thickness is calculated. The k value of an insulation material varies in real-world applications based on production conditions, density, and temperature. As a result, the density of the insulation material as well as the operating temperature must be considered. As a result, when selecting the ideal insulation thickness, the density of the insulating material and the operating temperature should be considered. The insulation material employed in this investigation was expanded polystyrene foam (EPS) of various densities, and the fuel was coal and natural gas. For the province of Isparta, the optimum insulation thickness as a function of density and temperature was established using the degree-day technique based on energy costs. As a result of the calculations for the k, dry value of the insulating material for the province of Isparta, which is in the third climate zone, the optimum insulation thickness was established as 0.0428 m for EPS with a density of 30 kg⋅m−3. It has been determined that the annual savings are 52.36 % and the payback period is 2.7 years.
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References
R.T. Oğulata, S.N. Oğulata, Solar radiation on Adana, Turkey. Appl. Energy 71(4), 351–358 (2002)
G. Erdal, H. Erdal, K. Esengün, The causality between energy consumption and economic growth in Turkey. Energy Policy 36(10), 3838–3842 (2008)
T.G. Özbalta, A. Sezer, Y. Yıldız, Models for prediction of daily mean indoor temperature and relative humidity: education building in Izmir, Turkey. Indoor Built Environ. 21(6), 772–781 (2012)
Ö. Kaynaklı, A study on residential heating energy requirement and optimum insulation thickness. Renew. Energy 33, 1164–1172 (2008)
M. Özel, Determination of optimum insulation thickness based on cooling transmission load for building walls in a hot climate. Energy Convers. Manag. 66, 106–114 (2013)
A. Kürekçi, A.T. Bardakçı, H. Çubuk, Ö. Emanet, Türkiye’nin tüm illeri için optimum yalıtım kalınlığının belirlenmesi. Tesisat Mühendisliği 131, 5–21 (2012)
D.B. Özkan, C. Onan, S. Erdem, Effect of insulation material thickness on thermal insulation. Sigma 27, 190–196 (2009)
A.E. Gürel, Z. Cingiz, Farklı dış duvar yapıları için optimum ısı yalıtım kalınlığı tespitinin ekonomik analizi. Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi 15(1), 75–81 (2011)
TS 825, 2008. Binalarda Isı Yalıtım Kuralları Standardı, Türk Standartları Enstitüsü, Ankara.
N. Sisman, E. Kahya, N. Aras, H. Aras, Determination of optimum insulation thicknesses of the external walls and roof (ceiling) for Turkey’s different degree-day regions. Energy Policy 35(10), 5151–5155 (2007)
A. Bolattürk, Determination of optimum insulation thickness for building walls with respect to various fuels and climate zones in Turkey. Appl. Therm. Eng. 26, 1301–1309 (2006)
A. Hasan, Optimizing insulation thickness for buildings using life cycle cost. Appl. Energy 63(2), 115–124 (1999)
M.S. Mohsen, B.A. Akash, Some prospects of energy savings in buildings. Energy Convers. Manag. 42(11), 1307–1315 (2001)
Bulut, H., Büyükalaca, O. and Yılmaz, T., 2007. Türkiye için Isıtma ve Soğutma Derece-Gün Bölgeleri, 16. Ulusal Isı Bilimi ve Tekniği Kongresi, Kayseri.
K. Çomaklı, B. Yüksel, Environmental impact of thermal insulation thickness in buildings. Appl. Therm. Eng. 24(5–6), 933–940 (2004)
Ö.A. Dombaycı, The environmental impact of optimum insulation thickness for external walls of buildings. Build. Environ. 42(11), 3855–3859 (2007)
Gölcü, M., Dombaycı, Ö. A. and Abalı S., 2006. Denizli İçin Optimum Yalıtım Kalınlığının Enerji Tasarrufuna Etkisi Ve Sonuçları. Gazi Üniv. Müh. Mim. Fak. Dergisi Cilt 21(4), 639–644.
Bolattürk, A., 2003. Binalarda optimum yalıtım kalınlıklarının hesabı ve enerji tasarrufundaki rolü. 14. Ulusal Isı Bilimi ve Tekniği Kongresi, 41–47.
O. Arslan, R. Kose, Thermoeconomic optimization of insulation thickness considering condensed vapor in buildings. Energy Build. 38(12), 1400–1408 (2006)
N. Daouas, Z. Hassen, H.B. Aissia, Analytical periodic solution for the study of thermal performance and optimum insulation thickness of building walls in Tunisia. Appl. Therm. Eng. 30(4), 319–326 (2010)
J. Yu, C. Yang, L. Tian, D. Liao, A study on optimum insulation thicknesses of external walls in hot summer and cold winter zone of China. Appl. Energy 86(11), 2520–2529 (2009)
Ö. Kaynaklı, M. Mutlu, M. Kılıç, Bina duvarlarına uygulanan ısıl yalıtım kalınlığının enerji maliyeti odaklı optimizasyonu. Tesisat Mühendisliği 126, 48–54 (2012)
M. Özel, M. Duranay, Farklı Yönlere Bakan Bina Duvarlarında Duvar Kalınlığı ile Yalıtım Kalınlığı Arasındaki İlişkinin Isıl Yük Seviyesi Açısından İncelenmesi. Fırat Üniversitesi Fen ve Mühendislik Bilimleri Dergisi 17(1), 181–189 (2005)
U.T. Aksoy, Ö. Keleşoğlu, Bina Kabuğu Yüzey Alani Ve Yalitim Kalinliğinin Isitma Maliyeti Üzerinde Etkileri. Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi 22(1), 103–109 (2007)
M. Özel, K. Pıhtılı, Determination of optimum insulation thickness by using heating and cooling degree-day values. J. Eng. Nat. Sci 26, 191–197 (2008)
A. Ucar, F. Balo, Effect of fuel type on the optimum thickness of selected insulation materials for the four different climatic regions of Turkey. Appl. Energy 86(5), 730–736 (2009)
A.E. Gürel, A. Daşdemir, Türkiye’nin dört farklı iklim bölgesinde ısıtma ve soğutma yükleri için optimum yalıtım kalınlıklarının belirlenmesi. Erciyes Üniversitesi Fen Bilimleri Enstitüsü Fen Bilimleri Dergisi 27(4), 346–353 (2011)
D. Karpov, O. Dyudina, M. Pavlov, A review on modern heat-insulating materials for improving the energy efficiency of buildings and life-support utilities. In E3S Web of Conferences, EDP Sciences. 288, 1099 (2021)
M. Koru, Determination of thermal conductivity of closed-cell insulation materials that depend on temperature and density. Arab. J. Sci. Eng. 41(11), 4337–4346 (2016)
G. Feng, Y. Feng, L. Qiu, X. Zhang, Pore scale simulation for melting of composite phase change materials considering interfacial thermal resistance. Appl. Therm. Eng. 212, 118624 (2022)
L. Qiu, Y. Ouyang, Y. Feng, X. Zhang, X. Wang, J. Wu, Thermal barrier effect from internal pore channels on thickened aluminum nanofilm. Int. J. Therm. Sci. 162, 106781 (2021)
L. Qiu, Y. Ma, Y. Ouyang, Y. Feng, X. Zhang, Freestanding flexible sensor based on 3 ω technique for anisotropic thermal conductivity measurement of potassium dihydrogen phosphate crystal. Sensors 21(23), 7968 (2021)
L. Qiu, H. Zou, D. Tang, D. Wen, Y. Feng, X. Zhang, Inhomogeneity in pore size appreciably lowering thermal conductivity for porous thermal insulators. Appl. Therm. Eng. 130, 1004–1011 (2018)
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Koru, M., Korkmaz, E. & Kan, M. Determination of the Effect of the Change in the Thermal Conductivity Coefficient of EPS Depending on the Density and Temperature on the Optimum Insulation Thickness. Int J Thermophys 43, 143 (2022). https://doi.org/10.1007/s10765-022-03071-4
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DOI: https://doi.org/10.1007/s10765-022-03071-4