TY  - JOUR
TT  - Investigation of the Effect of the Roof Geometry on Building Thermal Behaviour
AU  - Yıldırım, Erdal
AU  - Fıratoğlu, Zeynel Abidin
AU  - Yeşilata, Bülent
PY  - 2017
DA  - December
Y2  - 2017
DO  - 10.17482/uumfd.330923
JF  - Uludağ Üniversitesi Mühendislik Fakültesi Dergisi
JO  - UUJFE
PB  - Bursa Uludağ Üniversitesi
WT  - DergiPark
SN  - 2148-4155
SP  - 187
EP  - 200
VL  - 22
IS  - 3
KW  - Harran evi
KW  - Çatı geometrisi
KW  - Isıl performans
KW  - Doğal havalandırma
N2  - Main objective of this study is to investigateeffect of the roof geometry on indoor air conditions in terms of energyefficiency in summer. Harran’s conical roofed building has for this purposebeen compared with flat roofed building of equivalent thermo-physicalproperties, base area and volume. Three dimensional CFD simulations using thelow-Reynolds number modeling (LRNM) and standard turbulence models are performed. The effect ofroof geometry on natural ventilation is investigated. Cross ventilation flowrates and convection heat transfer coefficients for these two roof types areevaluated for this purpose. Cross ventilation flow rate for the house withconical roof is found to be 8% higher than that of the flat one. The result ofthe numerical analysis reveals as well that the conical roof transfers 30% lessheat to interior side for a representative summer day, resulting in lowerindoor air temperature in the house.
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UR  - https://doi.org/10.17482/uumfd.330923
L1  - https://dergipark.org.tr/tr/download/article-file/400525
ER  -