An aluminum fins 1.5 cm wide and 1 mm thick are placed on a 2.5 cm diameter tube to dissipate the heat . The tube surface temperature is 170 oC . Calculate the heat loss per fin for h= 130 W/m2 .oC for aluminum.

Q: Heat is generated in a 2.0-cm-square copper rod at the rate of 30 MW/m³. The rod is exposed to a…

A: Given data: a=2.0 cmQ˙=30 MW/m3T∞=25°Ch=5 kW/m2 Need to determine the surface temperature of the…

Q: A furnace wall 200 mm thick is made of a material having thermal conductivity of 1.45 W/m. K. The…

A: Answer: (a) The rate of heat transfer through the wall is 3213.675 Watt. (b) The temperatures on the…

Q: Q5: The piston cylinder device (radius=10 cm) contains a liquid with a pressure 100 kpa and…

A: Given, for a liquid container,Pressure, P1=100KPaTemperature, T1=20°CRadius of the container,…

Q: A steam turbine casing is made of a 6mm thick steel plate. At one location it has an inside surface…

A: Given data: The thickness of steel, LS = 6 mm. Inside surface temperature, Ti = 100°C. Ambient…

Q: A cubical tank of 2 m sides is constructed of special metal plate 12 mm and contains water at 75°C.…

A: Sides =2 m Thermal conductivity = 48 W/m2.k  coefficient of heat transfer of water is 2.5 kW/m2-K…

Q: A cold storage room has a walls constructed of 0.102-m corkboard contained between double wooden…

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Q: In a quenching process, a copper plate of 3 mm thick is heated up to 350°C and then suddenly, it is…

A: Explanation: first Bi number is calculated to check the validity of lumped analysis which must be…

Q: Hot gases at 278 ºC flow on one side of a metal plate of 10 mm thickness and air at 48 ºC flows on…

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Q: Q3) A total of 10 rectangular aluminum fins (k = 203 W/m.K) are places on the outside flat surface…

A:

Q: I have a 2m diameter rod that is 15m long. I will be putting it underground by 3 meters. The rod has…

A: Given data: ◆ The diameter of the rod: D = 2 m ◆ The length of the rod: L = 15 m ◆ The underground…

Q: Calculate the thermal conductivity (in W/m-K) of a material having a heat loss of 1028 watts, inside…

A: Given: The heat loss is Q=1028 W. The inside diameter is d1=59.4 cm. The thickness is t=118.4 mm.…

Q: 3.) A fluid has a temperature of 100C and thermal film coefficient of W 50 Solve for the heat…

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Q: The thermal conductivity coefficient of a 0.2 m thick concrete wall is known as 1.2W / (mK). Since…

A:

Q: A small stainless-steel rod 7 mm in diameter was heated so it is at 300 °C. It is quenched in a bath…

A: given data  d= 7mm Ts = 300°c h= 30 w/m2 k to find time t

Q: To increase the rate of heat transfer from a device, which has 0.1 m² of exposed surface, you added…

A: Given data: Area of exposed surface = A = 0.1 m2 Length of fin = l = 4 cm = 0.04 m Diameter of fin =…

Q: A 90-amp electric current is flowing through a 6-mm diameter lead wire. The thermal conductivity of…

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Q: fin made of AL metal with thermal conductivity (199 W / mK). Fin dimensions 3 cm long and 2.5 mm…

A: given data: fin metal : Al : k = 199 W/mK length; l = 0.03 m thickness; t = 2.5 mm wall temperature;…

Q: A spherical shaped vessel of 1.4 m diameter is 90 mm thick. Find the rate of heat leakage, if the…

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Q: What is the fin effectiveness of a rectangular plate fin made of aluminum O.3 mm thick mounted on a…

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Q: Water flows at 67 C inside a 2.5 cm inside diameter tube such that hi = 3500 W/m² .C. The tube has a…

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Q: Consider 469 mm × 447 mm window in an aircraft. For a temperature difference of 98°C from the inner…

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Q: Calculate the quantity of heat conducted per minute through a duralumin circular disc 127 mm…

A: Given data as per the   question Diameter of the disc  =127 mm The thickness of the disk =  19 mm…

Q: Calculate the quantity of heat conducted per minute through a duralumin circular disc 119mm diameter…

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Q: Water flows at 50 C inside a 2.5-cm-inside-diameter tube such that h, =3500 W/m2 C. The tube has a…

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Q: 3. A pipe carrying the liquid at -20°C is 10 mm in outer diameter and is exposed to ambient at 25°C…

A: Write the given data. Ti=-20 °Cr1=5 mmh∞=50 W/m2KT∞=25 °Ckins=0.5 W/mKL=1 mt1=2.5 mmt2=7.5 mmt3=15…

Q: Calculate the heat transfer per hour through a solid brick wall 6 m long, 3 m high, and 240 mm…

A: find the heat transfer per hour.

Q: Heat transfer through composite walls The wall of a refrigerated van is of 1.5 mm steel sheet at…

A: GivenTemperature at outer surface, To==(273-15) K=258KTemperature at outer surface, Ti=

Q: One vessel having a carbon-steel wall of thickness 5 mm carrying saturated steam and water at 423K.…

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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.