ambient at 25°C with  convective heat transfer coefficient of 50 W/m2 -K. It is proposed to apply the insulation of material having  thermal conductivity of 0.5 W/m-K. Calculate the heat loss for 2.5 mm, 7.5 mm and 15 mm thickness of  insulation over 1 m

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Q: 3-185 Circular fins of uniform cross section, with diameter of 10 mm and length of 50 mm, are…

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Q: A 12 mm diameter nuclear fuel element consists of a solid cylindrical rod with a heat transfer…

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A: Heat transfer is the form of energy transfer in which energy is transferred from one body to another…

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A: Write the given data. As1=0.1 m2n=500L=4 cmd=2 mmh=42 W/m2kk=240 W/mK

Q: 5 A double glazed window of 1.5 m² surface consists of two layers of glass (k = 0.78 W m-¹ K-¹) each…

A:

Q: A long, 150-mm-diameter cylindrical metal (k = 20 W/m-K, p = 7900 kg/m³, cp = 650 J/kg-K) billet is…

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Q: A house in Scotland has a back (kitchen) door that is 1 m wide and 2 m high. The lower half of the…

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Q: A flat wall 0.1 m thick and k = 25 W/(m-°C) has a heat generation rate per unit ofvolume of 0.3…

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Q: Explore the effect of insulation thickness on the heat loss q and the temperature of the nsulation…

A: The problem can be sketched as follows,

Q: A pipe transports refrigerant which goes at a temperature of -60 ° C, it has 2 ”internal diameter…

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Q: A house has a composite wall of wood, fiberglass insulation, and plaster board, as indicated in the…

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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: 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: Steam at 200 oC flows in a cast iron pipe (k = 70 W/m.K) whose inner and outer %3D diameters are D1…

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Q: Through a stainless steel wire (k=19W/m°C) of 3mm in diameter and 1m in length passes certain…

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Q: An aluminium panel, thickness 1.8 mm and initial temperature 293 K, is to be heat treated by…

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

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

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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: Required information The upper surface of a 85-cm-thick solid plate (k = 237 W/m-K) is being cooled…

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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: A pin fin of 2024-T6 aluminum has a length and diameter of 8.0 cm and 6.0 mm, respectively. The base…

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Q: A spherical container of negligible thickness holding a hot fluid at 140 oC and having an outer…

A: GivenTh=140oCdo=0.4mt1=50mm=0.05mk1=0.02 W/m Cok2=0.06 W/m Cok3=0.16 W/m CoTc=30oC

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: Problem-2: A 2.2-mm-diameter and 10-m-long electric wire is tightly wrapped with a 1-mm-thick…

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

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Q: A 112 m steel pipe has a 246.4˚C temperature, diameter of 230.8 mm is insulated with a 203.9 mm…

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Q: It is proposed to coat a 10mm diameter metal wire with enamel paint (k=0.1 W/m K) to increase heat…

A: Given                         diameter, d = 10 mm                                           k=0.1…

Q: Fins are used to improve heat transfer by increasing the effective * surface area TRUE O False O

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Q: Ql: Consider a copper ( k= 396 W/m K ) long cylindrical fin 0.25 cm in diameter that protrudes from…

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Q: Calculate the heat transfer rate from a single-pane glass window with aninside surface temperature…

A: The law which describes the rate of heat transfer in conduction is known as Fourier's Law. According…

Q: Ql: Consider a copper ( k= 396 W/m K ) long cylindrical fin 0.25 cm in diameter that protrudes from…

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Q: A wall with a brick and concrete layer is shown in the figure. The wall has a leng 15 m and 6 m…

A: Given:length of wall, l=15 mheight of wall, h=6 mkb=1.3 W/m.Ktb=75mmkc=2…

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

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

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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.