Question

A fin of rectangular profile has a thermal conductivity of 14 W/m C, thickness of 2.0...

A fin of rectangular profile has a thermal conductivity of 14 W/m C, thickness of 2.0 mm, and length of 23 mm. The base of the fin is maintained at a temperature of 220 o C while the fin is exposed to a convection environment at 23 o C with h=25 W/m2 o C. Calculate heat lost per meter of fin depth for the three tip conditions. (a) Convection, (b) Adiabatic, and (c) T (x=L) = 23 o C.

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The extent to which the tip condition affects the thermal performance of a fin depends on...
The extent to which the tip condition affects the thermal performance of a fin depends on the fin geometry and thermal conductivity, as well as the convection coefficient. Consider an alloyed aluminum (k = 180 W/m*K) rectangular fin of length L = 10 mm, thickness t = 1 mm, and width w >> t. The base temperature of the fin is Tb = 100°C, and the fin is exposed to a fluid of temperature T∞ = 25°C. Assuming a uniform...
For a straight, rectangular fin that is 2 cm in length, and 1 cm in thickness,...
For a straight, rectangular fin that is 2 cm in length, and 1 cm in thickness, with a thermal conductivity of 55 W/moC, density = 8000 kg/m3, and a wall temperature of 500oC in an environment where h=50 W/m2oC and Tair = 25oC, what is the heat dissipated from the fin per meter of depth?
Consider an aluminum pin fin (k = 240 W/m·K) with a 2 mm by 2 mm...
Consider an aluminum pin fin (k = 240 W/m·K) with a 2 mm by 2 mm square cross-section and a length of 4 cm that is attached to a surface at 100o C. The fin is exposed to air at 25o C with a convection heat transfer coefficient of 20 W/m2 · o C. Determine the rate of heat transfer and the tip temperature of the fin for the following cases: (a) Convection from the fin tip. (b) Adiabatic tip...
71 mm thick horizontal plate made of an opaque material of thermal conductivity k= 25 W/m-K....
71 mm thick horizontal plate made of an opaque material of thermal conductivity k= 25 W/m-K. At the bottom, water flows at a temperature of T∞,w = 25C, whereas air flows at the top of the plate at T∞,a = 710 C having convection coefficient of ha= 71 W/m2-K. Assuming a diffused top of the plate that receives an irradiated flux of 7100W/m2, of which 30% is reflected back. The top and bottom surface temperatures are maintained at 43 C...
Consider a large uranium plate of thickness 5 cm and thermal conductivity k = 28 W/m...
Consider a large uranium plate of thickness 5 cm and thermal conductivity k = 28 W/m K in which heat is generated uniformly at a constant rate of q˙ = 6 × 10^5 W/m^3 . One side of the plate is insulated while the other side is subjected to convection in an environment at 30◦C with a heat transfer coefficient of h = 60 W/m2 K. Considering six equally spaced nodes with a nodal spacing of 1 cm, (a) Sketch...
A stainless-steel fin (k = 16 W/m. °C) has a length of 15 cm and a...
A stainless-steel fin (k = 16 W/m. °C) has a length of 15 cm and a square cross section 12.5 by 12.5 mm attached to a wall maintained at 250 °C. The heat-transfer coefficient is 40 W/m. °C, and the environment temperature is 90 °C. Calculate the percentage increase in heat transfer after attaching the fin.
A certain material has a thermal conductivity of 0.90 W/(m oC). If the area of a...
A certain material has a thermal conductivity of 0.90 W/(m oC). If the area of a wall made of the material is 20 m2, the thickness of the wall is 0.6 m, and the heat transfer through that wall by conduction is 400 W, what is the temperature difference between the surfaces of the wall? Give your answer in terms of oC . (Enter the number only -- do not include the units in your answer.)
A 40-mm-thick plain wall of thermal conductivity 0.04 W/m-K and of temperature 304 K is exposed...
A 40-mm-thick plain wall of thermal conductivity 0.04 W/m-K and of temperature 304 K is exposed to both cold fluid and surroundings both at 298 K. The cold fluid and wall provide that the heat transfer coefficient is 10.5 W/m2-K and the emissivity of the wall is 0.83. Given that the area of the wall is 1.5m2 If the total heat transferred is 140.6987W, find the temperature of the other side of the plain wall
A pin fin, fabricated from an aluminum alloy (k = 185 W/m K), has a diameter...
A pin fin, fabricated from an aluminum alloy (k = 185 W/m K), has a diameter of D = 3 mm and a length of L = 15 mm. Its base temperature is Tb = 100°C, and it is exposed to a fluid for which T∞ = 20°C and h = 50 W/m2 K. Provide a sketch and state your assumptions (1 point) Use Table 3.5 in the book (grading is based on the use of that particular table) to...
A spherical tank, 1.5 m in diameter, is maintained at a temperature of 120 ◦C and...
A spherical tank, 1.5 m in diameter, is maintained at a temperature of 120 ◦C and exposed to a convection environment with heat transfer coefficient, h=15 W/m2 ◦C and T∞ =20 ◦C. For the same surface temperature of the tank, it is desired to insulate the tank in order to decrease the heat loss by 45 percent, determine the thickness of insulation layer (k=0.2 W/m ◦C ) and the outer surface temperature.
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT