400 circumferential fins of rectangular profile (k = 386 W/m oC) are installed on a tube having a diameter of 3 cm and 1 m length that is maintained at a temperature of 200oC. The single fin has a length of 2 cm and a thickness of 0.7 mm. The heat is transferred to the surrounding air at 100oC with a convection heat-transfer coefficient of 524 W/m2 oC. How many times is the heat transfer rate enhanced when the fins are installed on the tube?

Q: (2) juhäi The heat is dissipated from the plate by convection and radiation into surrounds at 20 C.…

A: We are restricted to solve one question at a time. Please ask other questions in the next post.…

Q: Q3- A 7cm diameter tube has circumferential fins of rectangular profile. The fins are constructed of…

A: (1) the no. of fins per meter of length of the tube, N=1m in mm/space between fins=1000/12=83.3 83…

Q: 1. The operations of the industrial management plant where you work asks you to determine the length…

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Q: Considering fins with adiabatic tips, plot the fin efficiency, n,, as a function of length (from 1…

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Q: A 30 mm diameter aluminium pipe is used to carry hot water, the external surface of the pipe is…

A: Given that, Diameter of Al pipe = d = 30 mm Convective heat transfer coefficient = h = 8 W/m2K…

Q: Engine oil at 54oC54oC flows over the upper surface of a 5m5m long plate whose temperature is…

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Q: 03-As shown in the figure, four circumferential fins of aluminum rectangular profile are installed…

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Q: A cylindrical tube with inner and outer radius are 10 mm and 20 mm respectively and the temperature…

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Q: 8 A copper hot-water cylinder of length 1-0 m and radius 0-20 m is lagged by 20m of material of…

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Q: A type K size 8 copper tube is carrying cyclohexane at an average temperature of 50°C. The pipe is…

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Q: One-dimensional steady state heat transfer problem - Consider a 60-mm long aluminum fin W mK (k =…

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Q: Plate glass 5 mm thick at200°C is to be cooled fromb bothsides using air at 40°C. Ifs surfacecracks…

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Q: Q- For fully developed flow through a pipe, the wall temperature is maintained at 500°C. If the…

A: A fully developed flow through a pipe-Wall temperature is maintained at 500°C.Fluid has a thermal…

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: Electrically heated draw batch furnaces are commonly used in the heat treatment industry. Consider a…

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Q: °C) at the outer surface. Find the temperature distribution equation and determine the surface…

A: Given: L=6 m Q= 2 kW d=0.2 cm r=0.1 cm=0.001 m k=1.51 W/moC T∞=30oC h=140 W/m2 To determine: The…

Q: A Francis water turbine has a runner of 1m outer diameter. It rotates at a speed of 160 rpm, flow…

A: Given  Flow velocity, Vf = 2.8 m/s               Head, h = 10 m             Speed, N = 160 rpm Find…

Q: Hot oil flows at a temperature of 165 oC through a steel pipe with an outer diameter of 38.0mm and a…

A: Given, Temperature of the fluid T∞1=165°C Outer diameter of the piper do=38mm Thickness of the pipe…

Q: Steam in a heating system flows through tubes whose outer diameter is 10 cm and whose walls are…

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Q: An ordinary egg can be approximated as a 5.5-cm-diameter sphere whose thermal conductivity of…

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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: Esitmate the heat flux through a composite wall with an average conducitivity of 0.15 W/m/K and a…

A: Given Data: The thickness of the wall, t=150 mm

Q: Consider the cooling system for the back of an integrated circuit. The chip has dimension 10 cmx 21…

A: Given-Infromation:To Determine:Heat transfer from the fin.Individual fin effectiveness.overall fin…

Q: r and copper alloys as specified by the copper development association CDA and are designated as…

A: No, It is false.

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

A:

Q: Water (5.2 L'min) is flowing in a tube "D-3 cm, L-5 m" and is to be heated from 15°C to 59.9°C by…

A: Given:Volume Flow rate,Q=5.2Lmin=5.2×10-360m3secDiameter,D=3cm=0.03mLength of tube,L=5mInitial…

Q: The piston cylinder of a motorcycle engine is constructed of AISI 316 stainless steel, having a…

A: solution: The value of thermal conductivity of AISI 316 stainless steel as 15 W/m.K The heat…

Q: This problem is for us to practice convection coefficient calculation for internal flow. You will…

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Q: Consider the cooling system for the back of an integrated circuit. The chip has dimension 10 cmx 21…

A: Given-Infromation: Dimenisons:10cm×21cm.Evenly spaced fins:6.Length of fins:2cm.Thickness:…

Q: A flat wall is exposed to an environmental temperature of 38oC. The wall is covered with a layer of…

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Q: A hot plate (0.15 m, and 0.2 m) is to be cooled by attaching aluminum fins of square cross section…

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Q: Electrically heated draw batch furnaces are commonly used in the heat treatment industry. Consider a…

A: Given data: Thickness, L = 20 mm K = 25 w/m* k T surr = 20 deg c = 293 K h = 10 w/m^2 * k Heat flux…

Q: The use of fins is most effective in application involving low convective heat transfer coefficient

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Q: Hot water (cp=4.18 kJ/kg.K, m = 2.8 kg/min) flows inside a tube (inner diameter = 9 mm, Length = 93…

A: From the given data, heat flux on the tube outer surface is (q") = 204×103 W/m2. Touter = 93 oC and…

Q: Q- For fully developed flow through a pipe, the wall temperature is maintained at 500°C. If the…

A:

Q: Fluid is flowing through a 20 mm inside diameter and 25 mm outside diameter brass tube at no leaking…

A: To calculate the total heat transfer from the fluid to the surrounding, we must use the equation…