Calculate the convection heat transfer coefficient value on the outer surface of the insulation to ensure that the outer surface temperature does not exceed 40 ° C. Convection coefficient = Answer

Q: The wall of the furnace is 30.48 mm thick and is insulated from outside. Thermal conductivity of the…

A: In this problem, we will calculate the overall heat transfer by the conduction per unit area and the…

Q: The inside surface of an insulation layer is maintained at 350oC and the outside surface dissipates…

A: Given that, Temperature at inside surface, Tb=350 °C,Temperature at outside surface, Ts=225 °C,Wall…

Q: A plane wall is 25 cm thick with an area of 1 m2, and has a thermal conductivity of 0.5 W/mK. If a…

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Q: A slab 0.2 m thick with thermal conductivity of 45 W/mK receives heat from a furnace at 500 K both…

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Q: 1. The rate of heat flow (q) through a plane wall of thickness x = 50 mm is 700 watt/m?. Determine…

A: Heat conduction  x = 50 mm = 0.05 m (x = wall thickness) q = 700 W/m2  ( q = Heat transfer per unit…

Q: The inside surface of an insulation layer is maintained at 350oC and the outside surface dissipates…

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Q: An vacant ball is made of aluminum (k = 202 W/m. "C) with an inner diameter of 4 cm and an outer…

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Q: 1. In summer, the owner of a house-made only of brick walls wants to know the heating transmitting…

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Q: Electric current flows through a 10 mm diameter conducting rod, 1 m long. A rod with a surface…

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Q: An isothermal sphere 3 cm in diameter at 80°C is embedded in a large clay region. The temperature of…

A: Disclaimer: “Since you have asked multiple questions, we will solve the first question for you i.e…

Q: A wall of 25 cm thickness and 10 m2 surface area is to be constructed from a material which has an…

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Q: 12 = 40 cm and 13 = 80 cm, respectively. The leng is 1 meter. The thermal conductivity of the wall…

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Q: Based on the following conditions do a comparison between the heat loss from an uninsulated and an…

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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: The inside surface of an insulation layer is maintained at 350°C and the outside surface dissipates…

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Q: A composite wall layer consists of layer A covered by layer B. The thermal resistance of layer A is…

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Q: r surface of the wall is at 1100◦C, and the room temperature is 25◦C. The heat-transfer coefficient…

A: given:

Q: On a multi-layered rectangular wall, the thermal resistance of the first layer is 0.005 ° C / W, the…

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Q: A tube having a cylindrical shape of length equals to 100 m and diameter equals to 13 cm passes…

A: Length of the cylinder = 100m diameter of the cylinder =13cm surface temperature =110c room…

Q: Question 6 A steel pipe (k = 48 W/m-K) of a heating system carries wet steam at 120 °C. The inner…

A: Given: The conductivity of steel pipe is k1=48 W/m·K. The temperature of the steam is T1=120°C. The…

Q: A 1-inch diameter wire of 10-ft length (which has an internal resistance of 3 kΩ, and thermal…

A: Given data: Diameter of the wire d =1 inch radius of the wire r = 0.5 inch = 0.0127m Length of the…

Q: flat wall is exposed to the environment. The wall is covered with a layer of insulation 1.0 in.…

A: Bulk Temperature of the environment if the outer surface of the insulation does not exceed 105oF is…

Q: Calculate the heat loss through a 3-in. thick insulation board that has an area of 2- ft² and a…

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Q: The wall of the furnace is 30.48 mm thick and is insulated from outside. Thermal conductivity of the…

A: Given: twall=30.48 mmkwall=0.1 W/mKkins=0.01 W/mKTfurnance=T1=650…

Q: The thermal conductivities of human tissues vary greatly. “Fat” and “skin” have conductivities of…

A: In heat transfer analysis, the rate of change of state is evaluated by calculating the rate of heat…

Q: A steel pipe 50 cm in length has an inside diameter of 9 cm with a wall thickness of 15 mm. The…

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Q: Calculate the heat loss in a pipe 109.7 mm inside diameter and 13.7 m length covered with a layer of…

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Q: 1. Judging  from its unit W/m.K can we define thermal conductivity of a  material as the rate of…

A: 1. We can not define thermal conductivity as the rate of heat transfer through the material per unit…

Q: Q1 A composite house wall is constructed from 1.2 cm layer of fiber insulating board, an 8.0 cm…

A: Given Data

Q: A cold-storage room is constructed of an inner layer of 11 mm of pine with thermal conductivity of…

A: Given:- Length of pine(thickness) Lp=11mm=0.011m Length of concrete(thickness) Lc = 75mm=0.075m…

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Q: Electric current flows in a 10 mm diameter conductor device with a length of 1 m. A rod with a…

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Q: 1. A pipe is covered with three insulation layers 250mm and 300mm and the respective thermal…

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Q: A 1,155 ft², 4 in. thick concrete wall has inside and outside surface temperatures of 24°C and 4°C.…

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Q: The inside surface of an insulation layer is maintained at 350°C and the outside surface dissipates…

A: Given data The inside surface temperature, Tb=350°C The temperatures of air T∞ =15oC The thickness…

Q: 700 W/m3 electrical heat is generated in a large plane wall whose one side is insulated while the…

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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.