For an array of rectangular straight fins. For the first answer, find the efficiency of a...
For an array of rectangular straight fins. For the first answer,
find the efficiency of a single fin. For the second answer, find
the efficiency of the array of fins, with the given
parameters:
L = 10 mm
t = 2 mm, w = 5 mm
qt = 100 watts
k = 200 w/mk
Tinf = 20C
Tbase = 100C
Prime area: Ab = 25 mm2
h = 500 w/m2k
Number of fins in array: N = 50
** if you used the table to get the values show me how
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For an array of rectangular straight fins. For the first answer,
find the efficiency of a...
please show work use chart to get correct length and fin efficiency 4. Straight metal fins...
please show work
use chart to get correct length and fin efficiency
4. Straight metal fins (k = 45 W/m °C) of triangular profile installed on a l m 1 m wall. The wall is maintained at 200 °C and are exposed to a convection environment at 25 °C with h = 204 W/m² °C. The fins have a length of 8 mm and a thickness of 2 mm. The space between two adjacent fins is 3 mm. Calculate (a)...
Annular aluminum fins of rectangular profile are attached to a circular tube having an outside diameter...
Annular aluminum fins of rectangular profile are attached to a circular tube having an outside diameter of 50 mm and an outer surface temperature of 400°C. The fins are mm thick and 20 mm long. The system is in ambient air at a temperature of 20°C, and the surface convection coefficient is 40 W/ mK. (a) What are the fin efficiency and effectiveness? (b) If there are 125 such fins per meter of tube length, what is the rate of...
G4 Problem Statement: Circular fins of uniform cross section, with diameter of 14 mm and length 7...
G4 Problem Statement: Circular fins of uniform cross section, with diameter of 14 mm and length 70 mm are attached to the wall with surface temperature o C. The fin is made of material with thermal conductivity of 210 W/mk, and exposed to an ambient air condition of 24 °C and the convection heat transfer coefficient of 190 W/m2k. f 300 1- Plot the temperature variation for the following boundary conditions a- Infinitely long fin b- Adiabatic fin tip c-...
2. Straight metal fins (k = 100 W/m°C) with rectangular profile protrude from a l m...
2. Straight metal fins (k = 100 W/m°C) with rectangular profile protrude from a l m high wall. The wall is maintained at 200 °C and exposed to a convection environment at 25°C with h = 20 W/m² °C. The fins have a length (L) of 8 cm and a thickness (1) of 3 mm. The space between two adjacent fins is 2 mm. Calculate the following for per unit depth of wall: (a) the fin efficiency, (8 points) (b)...
Lecture Assignment #7 A heat sink is composed of an array of rectangular fins. h-63 W/m-K...
Lecture Assignment #7 A heat sink is composed of an array of rectangular fins. h-63 W/m-K T 35°C a=2 mm b-2 mm FL-14 mm W-24 cm th, 0.75 cm k-35 W/m-K p 8200 kg/m The heat sink is square with base side dimension W 24 cm and base thickness ths- 0.75 cm. The fins are square and have side dimension a 2 mm and length L 14 mm. Fins are separated by a distance b 2 mm. (Note that there...
4. An exothermic material is encased in a 1-m-long thin tubular sleeve. The material generates heat...
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blem 4 (20 pts) A square chip that is 12.7mm on a side has a maximum allowable chip operating temperature -75°C. To dissipate heat produced in the chip, a 4 x 4 array of copper (k-400 W/m.K) pin fins...
blem 4 (20 pts) A square chip that is 12.7mm on a side has a maximum allowable chip operating temperature -75°C. To dissipate heat produced in the chip, a 4 x 4 array of copper (k-400 W/m.K) pin fins is proposed to be etallurgically joined to the outer surface of the chip. The convection coefficient is h-250 W/m'K and ambient air mperature isTo-20°C. The pin fin dimeter is D,-1.5mm and length is L,-16mm. Assuming steady-state uniform chip temperature Te-75°C and...
An array of electronic chips is mounted within a sealed rectangular enclosure, and cooling is implemented...
An array of electronic chips is mounted within a sealed rectangular enclosure, and cooling is implemented by attaching an aluminum heat sink (k = 180 W/m-K). The base of the heat sink has dimensions of wi = wº = 100 mm, while the 6 fins are of thickness: = 10 mm and pitch S = 18 mm. The fin length is 1; = 50 mm, and the base of the heat sink has a thickness of Ls = 15 mm....
Please work on this with process (please complete within one hour.) *I will rate* thank you...
Please work on this with
process (please complete within one hour.) *I will rate*
thank you
Heat is uniformly generated at the rate of 4 x 105 W/m3 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 (Lf = 16.25 mm) and thermal...
please show work
use chart to get correct length and fin efficiency
4. Straight metal fins (k = 45 W/m °C) of triangular profile installed on a l m 1 m wall. The wall is maintained at 200 °C and are exposed to a convection environment at 25 °C with h = 204 W/m² °C. The fins have a length of 8 mm and a thickness of 2 mm. The space between two adjacent fins is 3 mm. Calculate (a)...
Annular aluminum fins of rectangular profile are attached to a circular tube having an outside diameter of 50 mm and an outer surface temperature of 400°C. The fins are mm thick and 20 mm long. The system is in ambient air at a temperature of 20°C, and the surface convection coefficient is 40 W/ mK. (a) What are the fin efficiency and effectiveness? (b) If there are 125 such fins per meter of tube length, what is the rate of...
G4 Problem Statement: Circular fins of uniform cross section, with diameter of 14 mm and length 70 mm are attached to the wall with surface temperature o C. The fin is made of material with thermal conductivity of 210 W/mk, and exposed to an ambient air condition of 24 °C and the convection heat transfer coefficient of 190 W/m2k. f 300 1- Plot the temperature variation for the following boundary conditions a- Infinitely long fin b- Adiabatic fin tip c-...
2. Straight metal fins (k = 100 W/m°C) with rectangular profile protrude from a l m high wall. The wall is maintained at 200 °C and exposed to a convection environment at 25°C with h = 20 W/m² °C. The fins have a length (L) of 8 cm and a thickness (1) of 3 mm. The space between two adjacent fins is 2 mm. Calculate the following for per unit depth of wall: (a) the fin efficiency, (8 points) (b)...
Lecture Assignment #7 A heat sink is composed of an array of rectangular fins. h-63 W/m-K T 35°C a=2 mm b-2 mm FL-14 mm W-24 cm th, 0.75 cm k-35 W/m-K p 8200 kg/m The heat sink is square with base side dimension W 24 cm and base thickness ths- 0.75 cm. The fins are square and have side dimension a 2 mm and length L 14 mm. Fins are separated by a distance b 2 mm. (Note that there...
4. An exothermic material is encased in a 1-m-long thin tubular sleeve. The material generates heat at a steady rate of 4800 W/m. The thermal conductivity of the exothermic material is 22 W/mK. The radius of the tube is 30 cm, and you can neglect the thickness of the sleeve. Also assume the ends of the tube are perfectly insulated. (a) If the tube is exposed to air at 20°C, and if the convection coefficient between air and the tube...
blem 4 (20 pts) A square chip that is 12.7mm on a side has a maximum allowable chip operating temperature -75°C. To dissipate heat produced in the chip, a 4 x 4 array of copper (k-400 W/m.K) pin fins is proposed to be etallurgically joined to the outer surface of the chip. The convection coefficient is h-250 W/m'K and ambient air mperature isTo-20°C. The pin fin dimeter is D,-1.5mm and length is L,-16mm. Assuming steady-state uniform chip temperature Te-75°C and...
An array of electronic chips is mounted within a sealed rectangular enclosure, and cooling is implemented by attaching an aluminum heat sink (k = 180 W/m-K). The base of the heat sink has dimensions of wi = wº = 100 mm, while the 6 fins are of thickness: = 10 mm and pitch S = 18 mm. The fin length is 1; = 50 mm, and the base of the heat sink has a thickness of Ls = 15 mm....
Please work on this with
process (please complete within one hour.) *I will rate*
thank you
Heat is uniformly generated at the rate of 4 x 105 W/m3 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 (Lf = 16.25 mm) and thermal...
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