Transient heat transfer Leaking steam completely fills a room, pushing out all of the air. The steam...

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Mechanical Engineering

Transient heat transfer

Leaking steam completely fills a room, pushing out all of theair. The steam is at atmospheric pressure. Because the mortarcement siding walls are initially cool, at a uniform temperature of22C, the steam begins to condense on the walls. Find the rate ofcondensation per square meter of wall at (a) 10 s and (b) 30 safter the leak.

The wall is 10 cm thick, and you may assume that the other sideof the wall, the side not in contact with the steam, is insulated.You may make the following simplifying assumptions:

• The convective heat transfer rate due to steam condensation isinfinitely high and remains constant

• The effects of radiation are negligible.

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