A typical exterior masonry wall of a house, as shown in the accompanying, consists of the items in the accompanying table. Assume an inside room temperature of 20º C and an outside air temperature of −12º C, with an exposed area of 15 m2 . Calculate the heat loss through the wall. i. 2. 3. 4.5. 6. 7.Problem 11.11 ResistanceItems(m² - K/W)1. Outside film resistance0.029(winter, 24 km/h wind)2. Face brick (100 mm)0.0753. Cement mortar (15 mm)0.0174. Cinder block (200 mm)0.2925. Air space (22 mm)0.2186. Gypsum wallboard (15 mm)0.0777. Inside film resistance (winter)0.116

Solution: Calculate the Heat Loss through the wall Heat Loss=Tinside-ToutsideR'total…

i. 2. 3. 4. 5. 6. 7. Problem 11.11 Resistance Items (m² - K/W) 1. Outside film resistance 0.029 (winter, 24 km/h wind) 2. Face brick (100 mm) 0.075 3. Cement mortar (15 mm) 0.017 4. Cinder block (200 mm) 0.292 5. Air space (22 mm) 0.218 6. Gypsum wallboard (15 mm) 0.077 7. Inside film resistance (winter) 0.116

i. 2. 3. 4. 5. 6. 7. Problem 11.11 Resistance Items (m² - K/W) 1. Outside film resistance 0.029 (winter, 24 km/h wind) 2. Face brick (100 mm) 0.075 3. Cement mortar (15 mm) 0.017 4. Cinder block (200 mm) 0.292 5. Air space (22 mm) 0.218 6. Gypsum wallboard (15 mm) 0.077 7. Inside film resistance (winter) 0.116

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Temperature as a Fundamental Dimension

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Question

A typical exterior masonry wall of a house, as shown in the accompanying, consists of the items in the accompanying table. Assume an inside room temperature of 20º C and an outside air temperature of −12º C, with an exposed area of 15 m2 . Calculate the heat loss through the wall.

Resistance
Items
(m² - K/W)
1. Outside film resistance
0.029
(winter, 24 km/h wind)
2. Face brick (100 mm)
0.075
3. Cement mortar (15 mm)
0.017
4. Cinder block (200 mm)
0.292
5. Air space (22 mm)
0.218
6. Gypsum wallboard (15 mm)
0.077
7. Inside film resistance (winter)
0.116

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ISBN:

9781337630931

Author:

KASSIMALI, Aslam.

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