7. A typical exterior masonry wall of a house, shown in the accompanying figure, consists of the items in the accompanying table. Assume an inside room temperature of 68°F and an outside air temperature of 10°F and an exposed area of 150 ft'. Calculate the heat loss through the wall. 1. 2. 3. 4. 5. 6. 7. Resistance Items 1. Outside film resistance (winter, 15 mph wind) 2. Face brick (4 in.) 3. Cement mortar (1/2 in.) 4. Cinder block (8 in.) 5. Alr space (3/4 In.) 6. Gypsum wallboard (1/2 in.) 7. Inside film resistance (winter) (h ft? "F/Btu) 0.17 0.44 0.1 1.72 1.28 0.45 0.68
7. A typical exterior masonry wall of a house, shown in the accompanying figure, consists of the items in the accompanying table. Assume an inside room temperature of 68°F and an outside air temperature of 10°F and an exposed area of 150 ft'. Calculate the heat loss through the wall. 1. 2. 3. 4. 5. 6. 7. Resistance Items 1. Outside film resistance (winter, 15 mph wind) 2. Face brick (4 in.) 3. Cement mortar (1/2 in.) 4. Cinder block (8 in.) 5. Alr space (3/4 In.) 6. Gypsum wallboard (1/2 in.) 7. Inside film resistance (winter) (h ft? "F/Btu) 0.17 0.44 0.1 1.72 1.28 0.45 0.68
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
Related questions
Question
A typical exterior masonry wall of a house, shown
in the accompanying figure, consists of the items in the
accompanying table. Assume an inside room temperature of 68F and an outside air temperature of 10F,
with an exposed area of 150 ft2
. Calculate the heat loss
through the wall.
Transcribed Image Text:7. A typical exterior masonry wall of a house, shown in the accompanying figure, consists of the items in
the accompanying table. Assume an inside room temperature of 68°F and an outside air temperature of
10°F and an exposed area of 150 ft'. Calculate the heat loss through the wall.
1. 2. 3. 4.
5. 6. 7.
Resistance
(h ft? "F/Btu)
Items
1. Outside film resistance (winter, 15 mph wind)
2. Face brick (4 in.)
3. Cement mortar (1/2 in.)
4. Cinder block (8 in.)
5. Air space (3/4 In.)
6. Gypsum wallboard (1/2 in.)
7. Inside film resistance (winter)
0.17
0.44
0.1
1.72
1.28
0.45
0.68
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