Answer this ASAP,thx An empty sphere is made of aluminum (k = 202 W/m. °C) with an inner diameter of 4 cm and an outer diameter of 8 cm. The inside temperature is 100°C and If the ball above is coated with an insulating material having k = 50 mW/m. °C 1 cm thick. The outside of this insulation is in contact with an environment having h = 20 W/m.°C and Ts = 10°C, calculate the heat transfer under these conditions.

Q: HEAT CONDUCTION ON PLANE WALLS 11. A composite wall is formed of a 2.5-cm bronze plate (k = 26…

A: Given: Length of bronze plate→L1=2.5 Cm=0.025 m Conductivity of the bronze plate→k1=26 W/m°C Length…

Q: A cylindrical electrical heating element is used to heat up a baking oven. The heating element bears…

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Q: A cylindrical tank is constructed from aluminum (kal = 240 W/m2.K) with 1 m inner diameter and 10 mm…

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Q: A composite walls are constructed from an inner brick wall with thick L1= 25 cm and k1= 0.4 W/m K, a…

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Q: A metal cube of 0.1 m sides is being cooled down uniformly from 300°C to 30°C by placing it in cold…

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Q: 20-m pipe has an outside diameter of 50 mm. Pipe is insulated with a layer of asbestos, then…

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Q: A large concrete wall is 300 mm thick and has a thermal conductivity of 1.2 W/m C. The heat flux…

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Q: Consider a thick spherical wall with insulation at both mk mk the inner and outer walls. The inner…

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Q: A glass window with an area of 0.625 m² is installed in the wooden outside wall of a room. The wall…

A: GivenAg=0.625 m2Aw=25×3.05 m2kw=0.151 W/mKtw=3.05 cmkg=0.692 W/mKtg=5 mmTi=27oCTo=268K=-5oC

Q: A metal furnace with a 1.25 m x 0.75 m metal door is placed in a room and set to 400K. A 0.3 m x 0.3…

A: Given: Temperature of the furnace→T1=400 K size of the metal door→A1=1.25×0.75=0.93 m2 Size of the…

Q: Consider a plate whose thickness is 2L=16 cm and thermal conductivity is 50 W/mK. Heat generation…

A: Given : The thickness of the plate, 2L= 16 cm The thermal conductivity of plate = 50 W/mK The…

Q: Consider a cylindrical steel pipe of an inner radius of 2.9m, an outer radius of 3.2m, and thermal…

A: Given A cylindrical steel pipeinner radius (r1)=2.9 mouter radius (r2)=3.2 mThermal conductivity…

Q: A steam pipe, made of copper, has an inside diameter of 5 cm and an outside diameter of 6.2 cm. To…

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Q: The temperatures of each node are shown in the figure and all values are given. Find the heat loss…

A: The goal is to determine the heat loss from the top surface of the plate to the environment. we can…

Q: The heat flux that is applied to the left face of a plane wall is q" = 50 W/m². The wall is of…

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Q: Q1 The inner and outer surfaces a spherical shell with radii of 1 cm and 2 cm are 300°C and 100°C,…

A: We have to find heat transfer through the shell

Q: An oven made of stone with 3 m length and semi-cylindrical shape losses heat from inlet section of…

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Q: Find the total conductive thermal resistance of a 2-m long two-layered cylindrical insulation jacket…

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Q: A spherical tank with internal diameter of 2 m made of 2.0-cm-thick stainless steel (k=15 W/m.K) is…

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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: As shown in the figure, a 100 W/m² heat flux is applied to one side of the slab having thickness of…

A: q" = 100 W/m2L = 10 cm = 0.1 mk = 1 W/m.Kh = 10 W/K.m2To find temperature at L = 8 cm = 0.08 m

Q: With a linear profile inside the brick wall of thermal conductivity of 0.71 W/(mk), determine the…

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Q: hermometric well is placed in a pipe having diameter of 55 mm. Pipe wall temperature is 100°C and…

A: For solution refer below images.

Q: A rectangular wall of length "L" m and height "H" m is made from a thick bricklayer. The rectangular…

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Q: A long, thin copper rod 5 mm in diameter is exposed to an environment at 20°C. The base temperature…

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Q: Heat loss through an insulation (k = 0.05 W/m·C) is 125 W/m2. The temperature gradient across the…

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Q: Q: A large plane wall of thickness (L= 0.3 m), thermal conductivity ( k = 40 W/m-°C), and surface…

A: Given, L = 0.3 mk = 40 W/m °CA = 0.4 m2T(0) = 70 °Cq' = 1200kk + 20L=1200 (40)40 + 20 (0.3)=1043.48…

Q: A glass window with an area of 0.625 m² is installed in the wooden outside wall of a room. The wall…

A: Given:Glass window area=0.625 m2Ag=0.625 m2Temperature inside of the room=27o CT1=300 K Temperature…

Q: B- A pipe 1.2 m in length having an inside surface temperature of 260 C has an inside diameter of 8…

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Q: An industrial wall is constructed of 20 cm thick fireclay of thermal conductivity 1W/m 0C. This is…

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Q: 3. A cylindrical pipe of negligible thickness holding a hot fluid at 140°C and having an outer…

A: GivenT1=140oCd=0.4mt=70mm=0.070mk1=0.02 W/mKk2=0.06 W/mKk3=0.16  W/mKTo=30oC

Q: A wall thickness is 0.05. If the temperature of the inner surface is 40°C and the outer surface is…

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Q: A steam bath center in a gym consists of a wall three different material layers. First two layers…

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Q: The surfaces of a wall with uniform heat generation of 16535W/m³ are at 269°C and 108°C. If the wall…

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Q: Consider a composite wall of overall height H = 30 mm and thickness L = 40 mm. Section A has…

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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.