Steam is used to pre-heat an air stream before it is fed into a combustion chamber. Steam enters the well-insulated heat exchanger at 415 °C and 300.0 kPa and is isobarically condensed to a saturated liquid. The air enters at 45.0 °C and 125.0 kPa with a rate of 1050 L/s and must be heated to 255.0 °C. Assume air is an ideal gas with MW = 29 and Cp = 3.5*R. What is the flowrate of water leaving the exchanger? flowrate: -0.102 Incorrect What is the heat interaction term for the water? heat interaction term: -260.98 Incorrect L/s kJ/s

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Q: What is the slenderness ratio?

A:

Q: What is the general equation for bending?

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Q: 3- Calculate the number of finished goods (output) or N for the figure illustrated below:

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Q: What material and corresponding stresses is best for HP shape?

A:

Q: 23) The example for forming process is ___________. a. Extrusion b. Tempering c. Die Casting d. Gas…

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Q: When are the thin-walled tubes of the noncircular cross-section often used to construct?

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A: Solution:

Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.