A steel pipe (K=45.0 W/mK) having a 0.05m O.D. is covered with a 0.042 m thick layer of magnesia (K =0.07W/mK) which in turn covered with a 0.024 m layer of fiberglass insulation (K=0.048 W/mK). The pipe wall outside temperature is 370K and the outer surface temperature of the fiberglass is 305K. What is the interfacial temperature between the magnesia and fiberglass? also calculate the steady state heat transfer.

Q: Steam flows through tubes whose outer radius is 2.5 cm and whose wall are maintained at a…

A: given tube whose outer radius is, r= 2.5 cmwall are maintained at a temperature,T=135occonductivity…

Q: B- in figure below the plat has a width of 1 m. the heater is connected to the heater has length of…

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Q: A wall of 3 m height and 4 m width having an insulation layer is shown in the figure. The thickness…

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Q: The outside wall of a building consists of an inner layer of gypsum plaster, k = 0.17 W/ m K and 1.5…

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Q: Consider an apartment in a tower block as a cube of side L = 7.26 m. Since this apartment is…

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Q: 2- A rectangular cross section fin (k-45 W/m °C) with L= 20 mm, W= 1 m, t = 3 mm thick and T-120 °C…

A: Given Data Thermal conductivity, K=45 W/mKLength of the fin, L=20mmwidth of the fin, W=1mthe…

Q: Consider a pipe-pipe configuration consisting of concentric steel tubes with an intervening…

A: Given Di1=150mmti=to=10mmDi2=250 mmho=500 W/m2Kks=35 W/mKkp=0.075W/mKhi=450 W/m2K

Q: A rectangular fin with k=43 W/m.C, thickness t=2 cm, length L=14 cm and width W=1 m. The base of the…

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Q: Problem (4): solve of the following problem. A circular cross-section area metallic bar (k=85…

A: Write the given data: D=0.025 mL=0.1 mw=0.1 mTb=100°CT∞=20°Ch=25 W/m2°Ck=85 W/m °C

Q: Ice slurry is being transported in a pipe (k = 15 W/m K, D;= 0.025 m, Do= 0.085 m, and L = 5 m) with…

A: Ice slurry is being transported in a pipe;kpipe =15 W/m.KL= 5 mDi= 0.025 mDo= 0.085 mTi=…

Q: none

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Q: A cylindrical cold storage facility with an inner diameter of 4m and height of 2m is constructed.…

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Q: A hot-water pipe (k = 60 W/m K) in a house, made of 3/4-inch schedule 40 pipe (OD = 26.7 mm;…

A: To find: The percentage reduction in heat loss. Given: The inner radius of the pipe is r1=10.48 mm1…

Q: 4 A 20 cm thick slab of aluminums (k = 230 W/mK) is placed in contact w ith a 15 cm thick…

A: Given:Thickness of slab=20 cmK=230 W/mK

Q: The exterior wall of a building consists of 120 mm thick face brick (k = 0.9 W/m∙K), 45 mm thick…

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Q: 1) Hot water at an average temperature of 60°C is flowing through a 10-m section of a cast iron pipe…

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Q: A thick wallet tube of stainless steel (k+10 W/M°C) with 2 cm inside diameter and 4 cm outer…

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Q: A cast iron pipe is used to transfer steam with an inlet temperature of 300 C. Inner radius of the…

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Q: Wall of a building consists of two layers of brick (each 12 cm. thick with k=1.2 W/m K), an…

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Q: A 1.0 m × 1.5 m double glazed window consists of two 4 mm thick glass (k = 0.78 W / m K) layers…

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Q: A cast iron pipe is used to transfer steam with an inlet temperature of 300 C. Inner radius of the…

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Q: A steel pipe (k = 16W/m.K) of D; =2-mm inner diameter and t =4-mm in thickness is covered with t2…

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Q: a-4 ft b= 3 ft C= 2 ft d = 2.5 ft F1 = (-25i+20j+35k} Ib F2 = (-121-28/+40k) Ib

A: Find the resultant of the given forces by adding both the forces.

Q: A long stainless-steel (AISI 316) steam pipe, with an inside diameter of 6.00 cm and an outside…

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Q: Ql: A composite wall is made of 10 mm and 16 mm layers of materials of thermal conductivity 10 and…

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Q: A cast iron pipe is used to transfer steam with an inlet temperature of 350 C. Inner radius of the…

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Q: Exercise: Consider a circumferential aluminum fin (k = 220 W/m.°C) having a thickness of 0.1 mm to…

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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: A straight fin of rectangular profile ( k = 14 W/m . oC ) , thickness of t= 2 mm and L= 23 mm . The…

A: Given Data: The thermal conductivity of the fin is, k=14 W/m·°C. The thickness of the fin is, t=2…

Q: Hot wastewater of a heat recovery system is flowing through a concrete conduct (k = 1.4 W/m-K) of…

A: Given Datak=1.4W/mKt=10cmh=35W/m2K△x=△y=5cm=0.05mT∞=12°CTi=300°C

Q: The wall of a rectangular chemical tank consists of two layers- inner layer with 15 cm of copper (k…

A: Given, Lc = 15 cm kc = 385 W/m k Li = 10 cm ki = 60 W/m k ka = 0.17 W/m k

Q: heat transfer coefficient of 10 W/m2-K. If the inner surface tem- perature of the pipe is maintained…

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

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Q: 2- A rectangular cross section fin (k-45 W/m °C) with L-20 mm, W= 1 m, t = 3 mm L= thick and T,= 120…

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Q: A cylindrical cold storage facility with an inner diameter of 4m and height of 2m is constructed.…

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Q: t is intended to reduce heat losses of a glass window (k = 1.4 W/m.K) with 6 mm thick, covering it…

A: The thermal conductivity of glass window is The thickness of window is The thermla conductivity of…

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.