You are trying to assess the performance of a heat sink with fins. It has straight rectangular profile fins. The fin length is 20 cm. The fins have a thermal conductivity of 280 W/m-K. The average coefficient of the air around the fins is 80 W/m²-K. The thickness of the fins is 1 cm and the width is 2 cm. The temperature of the air is 20°C. The temperature at the base of the fin is 70°C. Find the efficiency and effectiveness of a single fin. 0.51 and 30.9

Q: The wall of a furnace has a thickness of 5 cm and thermal conductivity of 0.7 W/m-°C. The inside…

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Q: The hollow sphere has an outside radius of 1 m and is made of polystyrene foam with a thickness of 1…

A: Given data  Outside radius = 1m Thickness = 1cm Temperature difference=5.20°C Thermal conductivity =…

Q: A homeowner wants to reduce their monthly heating bill and carbon footprint and is considering…

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Q: Required information The upper surface of a 85-cm-thick solid plate (k= 237 W/m-K) is being cooled…

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Q: A 4-mm-diameter, 10-cm-long aluminum fin (k = 237 W/m-K) is attached to a surface. If the heat…

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Q: A steam pipe with 80 mm diameter passes through a room at 25°C (both air and walls). The pipe is…

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Q: 2. Compare the heat loss from insulated and uninsulated copper pipe (k-400 W/m K) under the…

A: Given:The thermal conductivity of the copper is The pipe internal diameter isThe pipe outside…

Q: A house in Scotland has a back (kitchen) door that is 1 m wide and 2 m high. The lower half of the…

A: (1) To find: The rate of heat loss. Given: The width of the door is w=1 m. The height of the door is…

Q: A long pipe carrying hot water loses heat to the ambient air. The heat loss was measured to be 480…

A: To find: The convection coefficient of the air. Given: The heat flux is q˙=480 W/m2. The temperature…

Q: The addition of aluminum fins has been suggested to increase the rate of heat dissipation from one…

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Q: One end of a 0.3 m long steel rod is connected to a wall at 204°C. The other end is connected to a…

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Q: A steel pipe having a 0.05m outer diameter is covered with a 0.042 m thick layer of magnesia (kes…

A: Givend=0.05mt1=0.042mkmg=0.07 W/m.Kt2=0.024mkf=0.048 W/mKT1=370KT3=305 K

Q: An electronic chip, of cross sectional area 0.001 m², has a set of 10 fins added to it to improve…

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Q: A solid plate, with a thickness of 15 cm and a thermal conductivity of 80 W/m-K, is being cooled at…

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Q: Rock has often been suggested as a medium for the thermal storage of energy. A cylindrical piece of…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: The top of a large industrial hot water heater has been left uninsulated. The top may be modeled as…

A: To calculate the heat transfer rate from the top of the hot water heater, we need to consider both…

Q: Consider a 1.2-m-high and 2-m-wide glass window (refer to the Figure) whose thickness is 6 mm and…

A: The given values are - T∞1=24°C, T∞2=-5°C, Area A=1.2×2 m2 , Thickness L=6×10-3 m2h1=10 Wm2K , h2=25…

Conduction and Convection

When energy travels from one object to another it is said to have undergone heat transfer. Heat transfer is nothing but the transfer of thermal energy or internal energy from one thing to another, like e.g., when a vessel with water, kept on top of a burner, heats up because of the flame underneath it.