Chemical and Biochemical Engineering Homework Solutions

Heat Transfer through Two Cylindrical Aluminium Bars

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Rate of Heat Loss through a Window

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Fourier's Law of conduction: Conduction through a Plane Wall (Contact Resistance)

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Steady Heat Conduction: Effect of Plastic Insulation

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Lumped System Analysis

Please see the attached file for the fully formatted problem(s). The temperature of a gas stream is measured by a thermocouple. Find the time it takes to reach 99% of delta T.

Lumped System Analysis: Quenching of Brass Balls

Please see the attached file for the fully formatted problem(s). A number of brass balls are to be quenched at a specific rate. The temperature of the balls after quenching and the rate at which heat neds to be removed from the water in order to keep its temperature constant are to be determined.

Forced Convection: Flow over Flat Plates

Please see the attached file for the fully formatted problem(s). Hot engine oil flows over a flat plate. The total drag force and rate of heat transfer per unit width of the plate are to be determined.

Forced Convection: Flow over Flat Plates

Please see the attached file for the fully formatted problem(s). Wind is blowing parallel to the wall of a house. The rate of heat loss is to be determined.

Forced Convection: Flow over Flat Plates

Please see the attached file for the fully formatted problem(s). The top surface of the passenger car of a train in motionis absorbing solar radiation. The equilibrium temperature of the top surface is to be determined.

Forced Convection

Please see the attached file for the fully formatted problem(s). A hot stainless steel ball is cooled by forced air. The average convection heat transfer coefficient and the cooling time are to be determined.

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