A 2 m wide, 3 m high, and 50 mm thick sheet of XPS insulation (M = 50 ng/Pa.s.m2), has a vapor pressure of 1500 Pa on one side, and 3500 Pa on the other. Calculate the vapor flow rate (Qv), vapor flux (qv), permeability, Rv value and the permeability (μ)

A 2 m wide, 3 m high, and 50 mm thick sheet of XPS insulation (M = 50 ng/Pa.s.m2), has a vapor pressure of 1500 Pa on one side, and 3500 Pa on the other. Calculate the vapor flow rate (Qv), vapor flux (qv), permeability, Rv value and the permeability (μ)

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter8: Natural Convection

Section: Chapter Questions

Problem 8.28P

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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.

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