The heat generation rate in a plane wall of 0.24 m thickness is 0.4 MW/m3 ....
The heat generation rate in a plane wall of 0.24 m thickness is 0.4 MW/m3
. The wall is exposed
on both sides to convection at 30°C. (a) Determine and compare the
maximum temperatures
for k = 25, k = 50, k = 200 and k = 410 W/mK assuming h = 250
W/m2K. (b) Determine and
compare the maximum temperature for h = 50, 250, 500 and 1000 W/m2K
with k = 25 W/mK.
Homework Answers
![6 TE 495 +0.4810 [. 0.0144] 2x25 IT = 6.10.2k for k= 50 W/ bik T=495 + 0.LiX10C (0.0144] = 55206. 2 x 50 for k=200 w/mk T2495](http://img.homeworklib.com/questions/bf855730-55e8-11eb-a881-e7b6dffe84e1.png?x-oss-process=image/resize,w_560)
Add Answer to:
The heat generation rate in a plane wall of 0.24 m thickness is
0.4 MW/m3
....
The heat generation rate in a plane wall of 0.24 m thickness is 0.4 MW/m^3. The...
The heat generation rate in a plane wall of 0.24 m thickness is 0.4 MW/m^3. The wall is exposed on both sides to convection at 30°C. a) Determine and compare the maximum temperatures for k=25, k=50, k=200 and k= 410 W/mK assuming h=250W/m^2 K. b) Determine and compare the maximum temperatures for h=50, 250, 500 and 1000 W/m^2K with k =W/mK
A plane wall is composed of two materials. Material A has a uniform heat generation of...
A plane wall is composed of two materials. Material A has a uniform heat generation of 100 kW/m3, a thermal conductivity of 50 W/mK, and a thickness of 10 cm. The inner surface of material A is well insulated. The other surface of material A is connected to Material B which has no generation with a thermal conductivity of 100 W/mK and a thickness of 20 cm. The outer surface of material B is cooled by ambient air at 300...
Heat is uniformly generated at the rate of 2x 10W/m* in a wall of thermal conductivity...
Heat is uniformly generated at the rate of 2x 10W/m* in a wall of thermal conductivity 25 W/m-K and thickness 60 mm. The wall is exposed to convection on both sides, with different heat transfer coefficients and temperatures as shown. There are straight rectangular fins on the right-hand side of the wall, with dimensions as shown (L =20 mm) and thermal conductivity of 250 W/m-K. What is the maximum temperature that will occur in the wall? L tt-2 mm k=25...
The one-dimensional plane wall, shown in the figure below, is of thickness L =75 mm and...
The one-dimensional plane wall, shown in the figure below, is of thickness L =75 mm and thermal conductivity k = 15 W/ mK. The fluid temperatures are T, 200°C and T2 = 100°C, respectively. Using the minimum and maximum typical values of the convection heat! transfer coefficients listed in the table below, determine the minimum and maximum steady-state heat fluxes through the wall for free convection in gases and free convection in liquids. Typical values of the convection heat transfer...
Reviewer Score 3. A plane wall of thickness 0.12m and thermal conductivity 40W/m K having uniform volumetric ene...
Reviewer Score 3. A plane wall of thickness 0.12m and thermal conductivity 40W/m K having uniform volumetric energy generation of 0.4MW/m3 is insulated on one side, while the other side is exposed to a fluid at 52 C. The convection heat transfer coefficient between the wall and the fluid is 400W/m2-K. Determine the (20 scores) maximum temperature in the wall. 4. r,rod OA rotates with uniform o o. At the moment, AB- 6r Signatory Score leration of block B at...
Q2) A constant heat flux (a -50 W/m2) is applied to a 1-D plane wall (k...
Q2) A constant heat flux (a -50 W/m2) is applied to a 1-D plane wall (k - 0.4 W/m K) on one side. The other side is subjected to convective boundary condition (h- 10 W/m? .K.Tm-25°C). A volumetric heat (q = 300 W/m*) is generated in the plane wall. If the plane wall has a thickness of L = 100 mm, a) Calculate surface temperatures T(x 0) and T(xL). b) Determine the location of the maximum temperature in the slab....
3.68 Consider o conduction in a plane com- posite wall. The outer surfaces are exposed to...
3.68 Consider o conduction in a plane com- posite wall. The outer surfaces are exposed to a fluid at 25°C and a convection heat transfer coefficient of 1000 Wim K. The generation q8, while there is no generation in walls A and C. The temperatures at 261°C and T2-211 C. middle wall B experiences uniform heat the interfaces are T, T. 9a k,-25 W/rm-K LA = 30 mm c-50 W/m-K L 30 mm L 20 mnm (a) Assuming negligible contact...
Circular pipe of 23.9 mm OD and 1.5 mm wall thickness and length 90 mm is...
Circular pipe of 23.9 mm OD and 1.5 mm wall thickness and length 90 mm is used as a fin on a wall at 200°C. The outside is exposed to air at 35°C with a convection coefficient of 15 W/m2K. The conductivity of the material is 45 W/mK. Determine the heat loss from the fin and also the mid section and tip temperature.
P1 (50 pts.) - A large plane wall has a thickness L-60 cm and thermal conductivity...
P1 (50 pts.) - A large plane wall has a thickness L-60 cm and thermal conductivity k 25 W/m-K. On the left surface (x-0), it is subjected to a uniform heat flux qo while the surface temperature To is constant. On the right surface, it experiences convection and radiation heat transfer while the surface temperature is TL-225°C and the surrounding temperature is 25°C. The emissivity and the convection heat transfer coefficient on the right surface are 0.7 and 15 W/m2-K,...
4) A 15 cm wall is known to have an internal heat generation rate of 1.7.10...
4) A 15 cm wall is known to have an internal heat generation rate of 1.7.10 . The wall is insulated on its inner surface and exposed to air with properties of To-88℃ and ho 490 W/m2K on its outer surface. The maximum temperature of the wall is found to be equal to 270 °C. a. b. c. Draw the resistance circuit. Determine the thermal conductivity of the wall. Determine the heat flux leaving the wall. enovo
A plane wall is composed of two materials. Material A has a uniform heat generation of 100 kW/m3, a thermal conductivity of 50 W/mK, and a thickness of 10 cm. The inner surface of material A is well insulated. The other surface of material A is connected to Material B which has no generation with a thermal conductivity of 100 W/mK and a thickness of 20 cm. The outer surface of material B is cooled by ambient air at 300...
Heat is uniformly generated at the rate of 2x 10W/m* in a wall of thermal conductivity 25 W/m-K and thickness 60 mm. The wall is exposed to convection on both sides, with different heat transfer coefficients and temperatures as shown. There are straight rectangular fins on the right-hand side of the wall, with dimensions as shown (L =20 mm) and thermal conductivity of 250 W/m-K. What is the maximum temperature that will occur in the wall? L tt-2 mm k=25...
The one-dimensional plane wall, shown in the figure below, is of thickness L =75 mm and thermal conductivity k = 15 W/ mK. The fluid temperatures are T, 200°C and T2 = 100°C, respectively. Using the minimum and maximum typical values of the convection heat! transfer coefficients listed in the table below, determine the minimum and maximum steady-state heat fluxes through the wall for free convection in gases and free convection in liquids. Typical values of the convection heat transfer...
Reviewer Score 3. A plane wall of thickness 0.12m and thermal conductivity 40W/m K having uniform volumetric energy generation of 0.4MW/m3 is insulated on one side, while the other side is exposed to a fluid at 52 C. The convection heat transfer coefficient between the wall and the fluid is 400W/m2-K. Determine the (20 scores) maximum temperature in the wall. 4. r,rod OA rotates with uniform o o. At the moment, AB- 6r Signatory Score leration of block B at...
Q2) A constant heat flux (a -50 W/m2) is applied to a 1-D plane wall (k - 0.4 W/m K) on one side. The other side is subjected to convective boundary condition (h- 10 W/m? .K.Tm-25°C). A volumetric heat (q = 300 W/m*) is generated in the plane wall. If the plane wall has a thickness of L = 100 mm, a) Calculate surface temperatures T(x 0) and T(xL). b) Determine the location of the maximum temperature in the slab....
3.68 Consider o conduction in a plane com- posite wall. The outer surfaces are exposed to a fluid at 25°C and a convection heat transfer coefficient of 1000 Wim K. The generation q8, while there is no generation in walls A and C. The temperatures at 261°C and T2-211 C. middle wall B experiences uniform heat the interfaces are T, T. 9a k,-25 W/rm-K LA = 30 mm c-50 W/m-K L 30 mm L 20 mnm (a) Assuming negligible contact...
P1 (50 pts.) - A large plane wall has a thickness L-60 cm and thermal conductivity k 25 W/m-K. On the left surface (x-0), it is subjected to a uniform heat flux qo while the surface temperature To is constant. On the right surface, it experiences convection and radiation heat transfer while the surface temperature is TL-225°C and the surrounding temperature is 25°C. The emissivity and the convection heat transfer coefficient on the right surface are 0.7 and 15 W/m2-K,...
4) A 15 cm wall is known to have an internal heat generation rate of 1.7.10 . The wall is insulated on its inner surface and exposed to air with properties of To-88℃ and ho 490 W/m2K on its outer surface. The maximum temperature of the wall is found to be equal to 270 °C. a. b. c. Draw the resistance circuit. Determine the thermal conductivity of the wall. Determine the heat flux leaving the wall. enovo
Most questions answered within 3 hours.
-
A speeding car is traveling along a straight road with a
constant speed of 100 km/hour....
asked 11 minutes ago -
When 60.1 gg of calcium is reacted with nitrogen gas, 31.7 gg of
calcium nitride is...
asked 16 minutes ago -
The random variable X is exponentially distributed, where X
represents the time it takes for a...
asked 31 minutes ago -
a) Write a verilog module for 1:4 Demultiplexer using verilog
primitives.
b) Design 1-to-4 DEMUX using...
asked 26 minutes ago -
MATLAB
write a MATLAB function (1) output a third-order polynomial
function with the coefficients as the...
asked 39 minutes ago -
A z-score
communicates a raw score’s "relative standing"
under the normal curve in relation to:
asked 47 minutes ago -
An object is vibrating on a spring with the following equation
of motion:
?=(30 ??)cos((2?)/(160)?)
a)...
asked 46 minutes ago -
Vulcan Flyovers offers scenic overflights of Mount St. Helens,
the volcano in Washington State that explosively...
asked 49 minutes ago -
If organizations do not adapt fast enough and move incrementally
from the twentieth-century model to the...
asked 50 minutes ago -
A helium balloon with 2.5L of gas has a gauge pressure of 10,000
Pa. The balloon...
asked 54 minutes ago -
What is responsible for Jupiter's enormous magnetic field?
asked 1 hour ago -
At the end of the year, a company offered to buy 5,000 units of
a product...
asked 1 hour ago