Question

Leaking steam completely fills a room, pushing out all of the air. The steam is at atmospheric pressure. Because the mortar cement siding walls are initially cool, at a uniform temperature of 22C, the steam begins to condense on the walls. Find the rate of condensation per square meter of wall at (a) 10 s and (b) 30 s after the leak. The wall is 10 cm thick, and you may assume that the other side of 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 is infinitely high and remains constant

 The effects of radiation are negligible.

Answer 1