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Determine the percentage increase in heat transfer associated with attaching aluminum fins of rectangular profile to...
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...
finite element method 2. Aluminum fins with rectangular profiles (5 mm wide and 1 mm thick) are used to remove heat...
finite element method
2. Aluminum fins with rectangular profiles (5 mm wide and 1 mm thick) are used to remove heat from a surface whose temperature is 150°C. The temperature of ambient air is 20°C. The thermal conductivity of aluminium is 168 W/m.K. The natural convective coefficient associated with the surrounding air is 35 W/m2.K. The fins are 150 mm long and the heat loss from the tip of the fin may be neglected. (a) Determine the temperature distribution along...
8. An circular in of rectangular profile is attached to a circular tube having an outside...
8. An circular in of rectangular profile is attached to a circular tube having an outside diameter mm and a surface temperature of 250 °C. The finis 1 mm thick and 10 mm long and the temperature and the convection coefficient associated with the adioining fluid are 25 and 2 W/m .K, respectively. The thermal conductivity of the fin material may be assumed to W/m.ºc. ir fins are spaced at 5-mm increments: Determine the increase in heat transfer from the...
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)...
W kg m-K m3 Two-Dimensional Steady and transient Conduction - Heat Sink Aluminum fins with triangle...
W kg m-K m3 Two-Dimensional Steady and transient Conduction - Heat Sink Aluminum fins with triangle profiles (k = 290 p = 2800 ,C= 900 shown in the accompanying figure, are used to remove heat from a surface kg-K whose temperature is T, = 150°C. The temperature of the surrounding air is 20°C. The natural heat transfer coefficient associated with the surrounding air is h = 190, Determine the temperature distribution along a fin. w m-K Air To, h 20...
Consider a single stack of rectangular fins of length L and thickness t, with convection conditions...
Consider a single stack of rectangular fins of length L and thickness t, with convection conditions corresponding to h and To. The bottom plate is well-insulated and an adiabatic fin tip condition may be assumed (a) Obtain the expression for the fin heat transfer rate (b) In a specific application, a stack that is 200 mm wide and 100 mm deep contains 50 fins, each of length L - 12 mm. The base and fins are made from aluminum (k...
Question 11 (15 points) The wall of a liquid-to-gas heat exchanger has a surface area on...
Question 11 (15 points) The wall of a liquid-to-gas heat exchanger has a surface area on the liquid side of 1.8 m2 (0.6 m * 3.0 m) with a heat transfer coefficient of 255 W/m2 K. On the other side of the heat exchanger wall a gas flows, and the wall has 96 thin rectangular steel fins 0.5 cm thick and 1.25 cm high (k = 3 W/m K) as shown in the figure below. The fins are 3 m...
The wall of a liquid-to-gas heat exchanger has a surface area on the liquid side of...
The wall of a liquid-to-gas heat exchanger has a surface area on the liquid side of 1.8 m2 (0.6 m * 3.0 m) with a heat transfer coefficient of 255 W/m2K. On the other side of the heat exchanger wall a gas flows, and the wall has 96 thin rectangular steel fins 0.5 cm thick and 1.25 cm high (k = 3 W/m K) as shown in the figure below. The fins are 3 m long and the heat transfer...
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 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...
finite element method
2. Aluminum fins with rectangular profiles (5 mm wide and 1 mm thick) are used to remove heat from a surface whose temperature is 150°C. The temperature of ambient air is 20°C. The thermal conductivity of aluminium is 168 W/m.K. The natural convective coefficient associated with the surrounding air is 35 W/m2.K. The fins are 150 mm long and the heat loss from the tip of the fin may be neglected. (a) Determine the temperature distribution along...
8. An circular in of rectangular profile is attached to a circular tube having an outside diameter mm and a surface temperature of 250 °C. The finis 1 mm thick and 10 mm long and the temperature and the convection coefficient associated with the adioining fluid are 25 and 2 W/m .K, respectively. The thermal conductivity of the fin material may be assumed to W/m.ºc. ir fins are spaced at 5-mm increments: Determine the increase in heat transfer from the...
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)...
W kg m-K m3 Two-Dimensional Steady and transient Conduction - Heat Sink Aluminum fins with triangle profiles (k = 290 p = 2800 ,C= 900 shown in the accompanying figure, are used to remove heat from a surface kg-K whose temperature is T, = 150°C. The temperature of the surrounding air is 20°C. The natural heat transfer coefficient associated with the surrounding air is h = 190, Determine the temperature distribution along a fin. w m-K Air To, h 20...
Consider a single stack of rectangular fins of length L and thickness t, with convection conditions corresponding to h and To. The bottom plate is well-insulated and an adiabatic fin tip condition may be assumed (a) Obtain the expression for the fin heat transfer rate (b) In a specific application, a stack that is 200 mm wide and 100 mm deep contains 50 fins, each of length L - 12 mm. The base and fins are made from aluminum (k...
Question 11 (15 points) The wall of a liquid-to-gas heat exchanger has a surface area on the liquid side of 1.8 m2 (0.6 m * 3.0 m) with a heat transfer coefficient of 255 W/m2 K. On the other side of the heat exchanger wall a gas flows, and the wall has 96 thin rectangular steel fins 0.5 cm thick and 1.25 cm high (k = 3 W/m K) as shown in the figure below. The fins are 3 m...
The wall of a liquid-to-gas heat exchanger has a surface area on the liquid side of 1.8 m2 (0.6 m * 3.0 m) with a heat transfer coefficient of 255 W/m2K. On the other side of the heat exchanger wall a gas flows, and the wall has 96 thin rectangular steel fins 0.5 cm thick and 1.25 cm high (k = 3 W/m K) as shown in the figure below. The fins are 3 m long and the heat transfer...
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)...
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