Consider a large plane wall of thickness L=0.4 m, thermal conductivity k=2.3 W/m-C, and surface area...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
Consider a large plane wall of thickness L=0.4 m, thermal conductivity k=2.3 W/m-°C, and surface area A=30 m2. The left side of the wall is maintained at a 2. k constant temperature of T1=90°C while the right side T;=90°C loses heat by convection to the surrounding air at T= 4=30 m² 25°C with a heat transfer coefficient of h= 24 W/m2 °C. T =25°C h=24 W/m2.°C L=0.4 m Assuming constant thermal conductivity and no heat generation in the wall, (a) express the differential equation and the boundary conditions for steady one-dimensional heat conduction through the wall (15p) (b) obtain a relation for the variation of temperature in the wall by solving the differential equation (15p) (c) evaluate the rate of heat transfer through the wall (15p) Consider a large plane wall of thickness L=0.4 m, thermal conductivity k=2.3 W/m-°C, and surface area A=30 m2. The left side of the wall is maintained at a 2. k constant temperature of T1=90°C while the right side T;=90°C loses heat by convection to the surrounding air at T= 4=30 m² 25°C with a heat transfer coefficient of h= 24 W/m2 °C. T =25°C h=24 W/m2.°C L=0.4 m Assuming constant thermal conductivity and no heat generation in the wall, (a) express the differential equation and the boundary conditions for steady one-dimensional heat conduction through the wall (15p) (b) obtain a relation for the variation of temperature in the wall by solving the differential equation (15p) (c) evaluate the rate of heat transfer through the wall (15p)
Expert Answer:
Related Book For
Principles of heat transfer
ISBN: 978-0495667704
7th Edition
Authors: Frank Kreith, Raj M. Manglik, Mark S. Bohn
Posted Date:
Students also viewed these mechanical engineering questions
-
A plane wall of thickness L = 0.1 m experiences uniform volumetric heating at a rate q. One surface of the wall (x = 0) is insulated, while the other surface is exposed to a fluid at Too = 20C, with...
-
2. Consider a large plane wall L=0.2 m, thermal conductivity k= 1.2 W/mK and surface area A= 15 m2. The two sides of the wall are maintained at constant temperatures of T1= 120 C and T2= 50 C....
-
A plane wall 15 cm thick has a thermal conductivity given by the relationk = 2.0 + 0.0005 T W/(m K)where T is in degrees Kelvin. If one surface of this wall is maintained at 150 ?C and the other at...
-
A heating contractor must heat 0.2 kg/s of water from 15C to 35C using hot gases in cross flow over a thin-walled tube. Your assignment is to develop a series of design graphs that can be used to...
-
In Original Source 1, the researchers addressed some limitations with the study. One of them was: First, there was a relatively small number of subjects who participated and this limited our...
-
Compute t s for the latch of Figure 27.4 in terms of the delays of the individual gates. Assume that the delay of gate Ui is t i . Data in Figure 27.4 g d U1 U2 U3 S' gu U4 U5 q q'
-
How has the Internet increased the risks of investing in collectibles?
-
Presented below is information related to equipment owned by Suarez Company at December 31, 2007. Cost ............... $9,000,000 Accumulated depreciation to date ... 1,000,000 Expected future net...
-
Help me, please. This is to fulfill my task.. Soal 6.1 Pada tanggal 2 Januari 2012, PT Koalisi mengakuisisi 75% saham PT Partai sebesar Rp. 5 miliar. Tidak ade diferential yang timbul dari akuisisi...
-
Badlands, Inc. manufactures a household fan that sells for $40 per unit. All sales are on account, with 40 percent of sales collected in the month of sale and 60 percent collected in the following...
-
How will a decrease in the federal government's budget deficit affect the equilibrium interest rate in the bond market? Explain using the bond demand and supply framework.
-
Duke Inc. is considering to change its capital structure of a $ 1 million:$ 3 million debt - equity mix ( in terms of market values ) , by taking out a $ 3 million loan which is used to pay a large...
-
You manage a risky portfolio with an expected rate of return of 1 8 % and a standard deviation of 2 8 % . The T - bill rate is 8 % . Stock A 2 5 % Stock B 3 2 % Stock C 4 3 % Your client s degree of...
-
(d) Use the variable substitution x t2 to solve the differential equation ty" + (t 1)y' + ty = t, t>0. -
-
1. Time spent serving a customer at a cafe is normally distributed, with = 7 minutes and 1.8 minutes. (a) If you select a random sample of duration serving twenty five (25) customers, determine the...
-
Question: A Theory : Select a Transformational Leadership theory like "Teamwork" explains reasons for choosing this theory out of a relatively simple spectrum of leadership theories.
-
The Sun's gravity is a function of the Sun's? Group of answer choices Magnetic field Mass Strong Nuclear forces Volume
-
Does log 81 (2401) = log 3 (7)? Verify the claim algebraically.
-
A small oven with a surface area of 3 ft2 is located in a room in which the walls and the air are at a temperature of 80?F. The exterior surface of the oven is at 300?F and the net heat transfer by...
-
A platinum hot-wire anemometer operated in the constant-temperature mode has been used to measure the velocity of a helium stream. The wire diameter is 20 m, its length is 5 mm, and it is operated at...
-
An aluminum sheet, 0.4 m tall, 1 m long, and 0.002 m thick is to be cooled from an initial temperature of 150?C to 50?C by immersing it suddenly in water at 20?C. The sheet is suspended from two...
-
Think of an idea for a new company and prepare a corporate charter for your business. You can find sample charters online. For extra credit, do one charter for your state and one for Delaware. Using...
-
10. ROLE REVERSAL Write a short-answer question that deals with the duty of care under the business judgment rule.
-
Question: Dr. Warfield hired Wolfe, a young carpenter, to build his house. A week or so after they signed the contract, Wolfe filed Articles of Incorporation for Wolfe Construction, Inc. Warfield...
Study smarter with the SolutionInn App