Engineering Fundamentals: An Introduction to Engineering (MindTap Course List)
5th Edition
ISBN: 9781305084766
Author: Saeed Moaveni
Publisher: Cengage Learning
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Chapter 11, Problem 11P
To determine
Find the heat loss through the wall.
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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.
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4.34
14.34
34.14
24.43
A 30 m steel tape is 2 mm long at 20 degrees Celsius with a pull of 55 N. A rectangle is measured with this The sides are recorded at 144.95 m and 113.00 m. The average temperature during the measurement is 30 degrees Celsius with a pull of 55 N. Use coefficient of expansion of steel tape as a 0.0000116 per degree Celsius.
Compute the actual length of tape during measurement
What is the true area?
What is the error in sq.m?
Chapter 11 Solutions
Engineering Fundamentals: An Introduction to Engineering (MindTap Course List)
Ch. 11.2 - Prob. 1BYGCh. 11.2 - Prob. 2BYGCh. 11.2 - Prob. 3BYGCh. 11.2 - Prob. 4BYGCh. 11.2 - Prob. 5BYGCh. 11.2 - Prob. BYGVCh. 11.4 - Prob. 1BYGCh. 11.4 - Prob. 2BYGCh. 11.4 - Prob. 3BYGCh. 11.4 - Prob. 4BYG
Ch. 11.4 - Prob. BYGVCh. 11.6 - Prob. 1BYGCh. 11.6 - Prob. 2BYGCh. 11.6 - Prob. 3BYGCh. 11.6 - Prob. 4BYGCh. 11.6 - Prob. BYGVCh. 11 - Prob. 1PCh. 11 - Prob. 2PCh. 11 - Alcohol thermometers can measure temperatures in...Ch. 11 - Prob. 4PCh. 11 - Prob. 5PCh. 11 - Prob. 6PCh. 11 - Prob. 7PCh. 11 - Prob. 8PCh. 11 - Calculate the R-value for the following materials:...Ch. 11 - Calculate the thermal resistance due to convection...Ch. 11 - Prob. 11PCh. 11 - Prob. 12PCh. 11 - Prob. 13PCh. 11 - Estimate the change in the length of a power...Ch. 11 - Calculate the change in 5 m long copper wire when...Ch. 11 - Prob. 16PCh. 11 - Prob. 17PCh. 11 - Prob. 19PCh. 11 - Prob. 20PCh. 11 - Prob. 23PCh. 11 - Prob. 24PCh. 11 - Prob. 26PCh. 11 - Prob. 27PCh. 11 - Prob. 28PCh. 11 - Prob. 29PCh. 11 - Prob. 30PCh. 11 - Prob. 31PCh. 11 - Prob. 32PCh. 11 - Prob. 33PCh. 11 - Prob. 34PCh. 11 - Prob. 35PCh. 11 - For Problems 11.11, 11.12, and 11.13, calculate...Ch. 11 - Prob. 37PCh. 11 - Prob. 38PCh. 11 - Prob. 39PCh. 11 - Prob. 40PCh. 11 - Prob. 41PCh. 11 - Prob. 42PCh. 11 - Prob. 43PCh. 11 - Prob. 44PCh. 11 - Prob. 45PCh. 11 - Prob. 46PCh. 11 - Prob. 47PCh. 11 - Prob. 48PCh. 11 - Prob. 49P
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- the answer for a is 40.3 degree Celsius. please answer letter B only. thank youarrow_forwardCalculate the R-value for the following materials: a. 4 in. thick brick b. 10 cm thick brick c. 12 in. thick concrete slab d. 20 cm thick concrete slab e. 1 cm thick human fat layerarrow_forwardPlease do it handwrittenarrow_forward
- 3. A 30 m steel tape is 2 mm too long at 20°C with a pull of 55 N. A rectangle is measured with this The sides are recorded as 144.95 m and 113.00 m. The average temperature during the measurement is 30°C with a pull of 55 N. Use coefficient of expansion of steel tape as a 0.0000116 m /°C. tape. a) Compute the actual length of tape during measurement. b) What is the true area? c) What is the error in area in sq.m.arrow_forward6- A liquid has a specific weight of 59 lb/ft and a dynamic viscosity of 2.75 lb . s/ft'. Determine its kinematic viscosity.arrow_forwardanswer key : 2.51 x 10^-3 in.arrow_forward
- A 1,065 ft², 7 in. thick concrete wall has inside and outside surface temperatures of 25°C and 9°C. A 2 in. insulation batt with a thermal conductivity of k = 0.03 Btu/(h· ft· °F) is added to the wall. Determine the reduction in heat transfer rate. What is the thickness of the insulation in meters? m What is the thermal conductivity value of the insulation batt in W/(m .K)? W/(mK) What is the R-value of the concrete wall (in m². K/W)? m². K/W What is the R-value of the insulation batt (in m². K/W)? m². K/W What is the heat transfer rate (in W) when the insulation is added? W What is the percent reduction in the heat transfer rate? %arrow_forwardDraw a graph showing the emulsification breaker effect over time points (W X Y Z) .arrow_forwardA 30 meter tape is 2mm too long at 20℃ with a pull of 55N. A rectangle is measured with this tape. The ideas are recorded as 144.95 meter and 113.00 meter. The average temperature during the measurement is 30℃ with a pull of 55N. Use coefficient of expansion of steel tape as a 0.0000116/℃. Compute the actual length of tape during measurement. What is the true area. What is the error in area in sq.meter.arrow_forward
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