Thermal Analysis of Insulation Materials Used for Exterior Walls of Buildings Considering the Wind Effect

Öz

The optimum thickness of insulation material dependent on wall orientation and wind speed were determined for selected insulation materials and external wall types in different compositions and orientations by using the Life Cycle Cost method. The methodology is applied as a case study by comparing the different combinations of thermally insulated walls with four different insulation materials for four different degree-day regions of Turkey considering the effect of wind speed and direction. In the economic analysis, the costs of the life cycle of each different combination of insulated walls were calculated. It was obtained from these results that heating requirement of the north facing wall was the highest and heating requirement of the south facing wall was the lowest. The optimum thickness of insulation changes from 4.77 to 13.35 cm dependent on the insulation materials and orientations.

Anahtar Kelimeler

• Optimum insulation thickness
• Wind speed
• Insulation material
• Thermal analysis

Kaynakça

1. 1-UNEP-SBCI Buildings and Climate Change: Status, Challenge and Opportunities, UNEP Publication, Paris, France, 2007.
2. 2- K. Yiğit, B. Acarkan, “Assessment of energy performance certificate systems: a case study for residential buildings in Turkey”, Turkish Journal of Electrical Engineering & Computer Sciences, vol.24, pp. 4839 – 4848, 2016.
3. 3-A. Stephan, R.H. Crawford and K. Myttenaere, “Towards a comprehensive life cycle energy analysis framework for residential buildings,” Energy Building, vol.55, pp. 592–600, 2012.
4. 4- M.K. Nematchoua, P. Ricciardi, S. Reiter and A. Yvon, “A comparative study on optimum insulation thickness of walls and energy savings in equatorial and tropical climate,” International Journal of Sustainable Built Environment, vol.6, pp.170-182, 2017.
5. 5- M. Kayfeci, A. Keçebas and E. Gedik, “Determination of optimum insulation thickness of external walls with two different methods in cooling applications,” Applied Thermal Engineering, vol.50 pp. 217-224, 2013.
6. 6- N. A. Kurekci, “Determination of optimum insulation thickness for building walls by using heating and cooling degree-day values of all Turkey’s provincial centers,” Energy and Buildings, vol. 118, pp.197–213, 2016.
7. 7-K. Çomaklı, B. Yüksel, “Optimum insulation thickness of external walls for energy saving,” Applied Thermal Engineering, vol. 23, no.4, pp. 473–479, 2003.
8. 8- K. Saafi, N. Daouas, “A life-cycle cost analysis for an optimum combination of cool coating and thermal insulation of residential building roofs in Tunisia,” Energy, vol.152, pp. 925-938, 2018.

9. 9- A. Bolattürk, “Determination of optimum insulation thickness for building walls with respect to various fuels and climate zones in Turkey,” Applied Thermal Engineering, vol.26, no.11, pp. 1301–1309, 2006.
10. 10- I. Axaopoulos, P. Axaopoulos, G. Panayiotou, S. Kalogirou and J. Gelegenis, “Optimal economic thickness of various insulation materials for different orientations of external walls considering the wind characteristics,” Energy, vol. 90, pp. 939-952, 2015.
11. 11- G. Özel, E. Açıkkalp, B. Görgün, H.Yamık and N. Caner, “Optimum insulation thickness determination using the environmental and life cycle cost analyses based entransy approach,” Sustainable Energy Technologies and Assessments, vol.11, pp. 87-91, 2015.
12. 12- P. Jie, F. Zhang, Z. Fang, H. Wang and Y. Zhao, “Optimizing the insulation thickness of walls and roofs of existing buildings based on primary energy consumption, global cost and pollutant emissions,” Energy, vol. 159, pp. 1132–1147, 2018.
13. 13- TS 825, Thermal Insulation Rules in Buildings, Turkish Standard Institution, Ankara, Turkey, 1998.
14. 14- O. Buyukalaca, H. Bulut and T. Yılmaz, “Analysis of variable-base heating and cooling degree days for Turkey,” Applied Energy, vol.69, pp. 269–283, 2001.
15. 15- C. Ozay, M.S. Celiktas, “Statistical analysis of wind speed using two-parameter Weibull distribution in Alaçatı region,” Energy Conversion and Management, vol.121, pp. 49–54, 2016.
16. 16- A. Ucar, F. Balo, “Effect of fuel type on the optimum thickness of selected insulation materials for the four different climatic regions of Turkey,” Applied Energy, vol. 86, pp.730–736, 2009.
17. 17- Energy and Environmental Systems Magazine (Enerji dünyası dergisi), Teknik yayıncılık tanıtım AŞ, 2008.