EBK ENGINEERING FUNDAMENTALS: AN INTROD
5th Edition
ISBN: 9780100543409
Author: MOAVENI
Publisher: YUZU
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Chapter 11, Problem 11P
To determine
Find the heat loss through the wall.
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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?
A double-pane glass window consists of two pieces of glass, each having athickness of 8 mm, with a thermal conductivity of k = 1.4 W⁄m ⋅ K . The twoglass panes are separated by an air gap of 10 mm, as shown in Figure 11.10 .Assuming the thermal conductivity of air to be k = 0.025 W⁄m ⋅ K , determinethe total R-value for this window. The total thermal resistance of the window is obtained by adding the resistance offered by each pane of glass and the air gap in the following manner:
Chapter 11 Solutions
EBK ENGINEERING FUNDAMENTALS: AN INTROD
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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- 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_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_forwardWhat is the pressure inside the raindrop that is 0.06 in diameter when the temperature is 70⁰ F? The answer was already given, please show the solution. ANSWER: 0.0276 psigarrow_forward
- I need the answer as soon as possiblearrow_forwardDetermine the friction factor for water flowing at a rate of 1 cfs in a cast iron pipe 2 inches in diameter at 80°F. [Kinematic viscosity, v, of water at 80°F = iron = 8.0*10 ft.] 0.93x10 ft/s; Roughness of castarrow_forward1.37 What is the specific weight of air at 70 psia and 70 °F?arrow_forward
- Read the question carefully. Given question 6.12 is question number not the grade. Answer : V=30.9 ft/secarrow_forwardDo ghknarrow_forwardCalculate the R-value for the following materials:a. 100 mm thick brickb. 10 cm thick brickc. 30 cm thick concrete slabd. 20 cm thick concrete slabe. 1 cm thick human fat layerarrow_forward
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