DETERMINATION OF HEAT TRANSFER COEFFICIENTs UNDER CLIMATIC CONDITIONS OF ISTANBUL. Mustafa Kemal Kaymak and Ahmet Duran Şahin İstanbul Technical University, Aerospace and Aeronautics Faculty, Meteorology Department, Energy Group, 80626 Maslak/İstanbul
Figure Wind rose for considered region
In here,V1 represents measured wind speed values at 10 m that is reference level for this paper and V2represents wind speed at desired building height.
Figure Wind profile changes during day for different heights in Sarıyer-İstanbul
for the winward side
for leeward as
hw = 7.4 + 4.0 V
hw = 4.2 + 3.5 V
Figure Heat loss coefficient variation during day for different heights in Sarıyer-İstanbul on windward side.
For leeward side of the building approximately 25% less than windward heat losses occur. Atmospheric boundary layer conditions also effect low level urban conditions on the leeward side.
Figure . Heat loss coefficient variation during day for different heights in Sarıyer-İstanbul at leeward side.
Summation of WCB gives heating or cooling degree of the building.