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
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
Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
8th Edition
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
Publisher:Kreith, Frank; Manglik, Raj M.
Chapter1: Basic Modes Of Heat Transfer
Section: Chapter Questions
Problem 1.68P
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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](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F4403ffcd-9bfd-415c-bc52-6273066ff721%2F8f65ae75-a30d-4b60-bd3b-0504a48f5f3e%2F90lc5f8_processed.jpeg&w=3840&q=75)
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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