Evaluation of TS 825 Thermal Insulation Requirements in Buildings in Terms of Solar Radiation

Bekta� Ekici, Bet�l

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Evaluation of TS 825 Thermal Insulation Requirements in Buildings in Terms of Solar Radiation [Megaron]

Megaron. 2015; 10(1): 14-24 | DOI: 10.5505/megaron.2015.08370

Evaluation of TS 825 Thermal Insulation Requirements in Buildings in Terms of Solar Radiation

Bet�l Bekta� Ekici
F�rat University, Faculty Of Technical Education, Department Of Construction Education

TTS 825 Thermal Insulation Requirements in Buildings (the obligatory standard) is still in effect and used for calculating the heating energy requirements of buildings in Turkey. The total solar heat gain through windows is calculated with the solar radiation table given in Appendix-C of TS 825. Although Turkey is divided into four different degree day regions according to this standard, Appendix-C offers the same solar radiation data for all regions. This study is aimed to investigate the appropriateness of the Appendix-C table for the different degree day regions. The hourly solar radiation on the vertical surfaces of a building envelope was calculated for 16 selected cities. Long-term sunshine duration data for each location were obtained from Turkish State Meteorological Service.
It is demonstrated that the solar radiation table given in Appendix-C of TS 825 is not appropriate for the four degree day regions. The calculated solar radiation values of the cities are considerably different from the table values, with the ratios varying between 3.03% and 69.15% for horizontal surfaces, 0.171% and 53.29% for south, 0.25% and 22.15% for north and 0.60% and 40.42% for east and west oriented surfaces.

Keywords: solar radiation, solar heat gain, orientation, window, TS 825

TS 825 Binalarda Is� Yal�t�m Kurallar� Standard�n�n G�ne� I��n�m� A��s�ndan De�erlendirilmesi

Bet�l Bekta� Ekici
F�rat �niversitesi, Teknik E�itim Fak�ltesi, Yap� E�itimi B�l�m�

TS 825 Binalarda �si Yal�t�m Kurallar� Standard� (zorunlu standart) T�rkiye�de binalar�n �s�tma enerjisi ihtiya�lar�n�n hesaplanmas�nda halen kullan�lmaktad�r. Pencerelerden olan g�ne� �s�s� kazan�lar� TS 825 EK-C�de verilen g�ne� ��n�m� tablosu ile hesaplanmaktad�r. Bu standarda g�re T�rkiye d�rt farkl� derece g�n b�lgesine ayr�lm�� olmas�na ra�men EK-C her b�lge i�in ayn� g�ne� ��n�m� verilerini �nermektedir. Bu �al��ma EK-C tablosunun farkl� derece g�n b�lgeleri i�in uygunlu�unu de�erlendirmeyi ama�lamaktad�r. Bina kabu�unun d��ey y�zeyleri �zerindeki saatlik g�ne� ��n�m� de�erlerini se�ilmi� 16 �ehir i�in hesaplam��t�r. Her bir yerle�im yerine ait uzun y�llar g�nl�k g�ne�lenme s�resi verisi Devlet Meteoroloji ��leri Genel M�d�rl��nden temin edilmi�tir.
Sonu� olarak, TS 825 EK-C�de verilen g�ne� ��n�m� tablosunun d�rt derece g�n b�lgesi i�in de uygun olmad�� kan�tlanm��t�r. �ehirler i�in hesaplanan g�ne� ��n�m� de�erlerinin yatay y�zeyler i�in % 3.03 ve % 69.15, g�ney i�in % 0.171ve % 53.29, kuzey i�in % 0.25 ve % 22.15 ve do�u ve bat� y�nleri i�in % 0.60 ve % 40.42 aras�nda de�i�en �nemli oranlarda farkl�l�klar g�stermektedir.

Anahtar Kelimeler: g�ne� ��n�m�, g�ne� �s�s� kazanc�, y�nlenme, pencere, TS 825

Bet�l Bekta� Ekici. Evaluation of TS 825 Thermal Insulation Requirements in Buildings in Terms of Solar Radiation. Megaron. 2015; 10(1): 14-24

Corresponding Author: Bet�l Bekta� Ekici, T�rkiye

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