Q4/ A room on the second floor of a house with a balcony has a door. The door made of teak (wood) and it contains a large sheet of glass (outside winter type) in the middle and constitutes 80% of the area of the door. Door thickness is 40 mm and the temperature in the room 25 °C when the temperature is in the balcony 8 °C. Calculate the rate of heat loss from the room to the balcony through the door. The door dimensions 2m x 1m. Assume Inside and outside still air thermal resistance f= 8.29 W/m2 °C and fo= 34.1 W/m2 °C respectively

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Q4/ A room on the second floor of a house with a balcony has a door. The door made
of teak (wood) and it contains a large sheet of glass (outside winter type) in the
middle and constitutes 80% of the area of the door. Door thickness is 40 mm and the
temperature in the room 25. °C when the temperature is in the balcony 8 °C. Calculate
the rate of heat loss from the room to the balcony through the door. The door
dimensions 2m x 1m. Assume Inside and outside still air thermal resistance f= 8.29
W/m2 °C and f. 34.1 W/m2 °C respectively
Transcribed Image Text:Q4/ A room on the second floor of a house with a balcony has a door. The door made of teak (wood) and it contains a large sheet of glass (outside winter type) in the middle and constitutes 80% of the area of the door. Door thickness is 40 mm and the temperature in the room 25. °C when the temperature is in the balcony 8 °C. Calculate the rate of heat loss from the room to the balcony through the door. The door dimensions 2m x 1m. Assume Inside and outside still air thermal resistance f= 8.29 W/m2 °C and f. 34.1 W/m2 °C respectively
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