Experiments on Heat Exchanger Solidity for Coal-Fired Fluidized Bed Applications

[+] Author and Article Information
G. Miller, V. Zakkay

Department of Applied Science, New York University, 26-36 Stuyvesant Street, New York, N. Y. 10003

J. Heat Transfer 102(4), 731-735 (Nov 01, 1980) (5 pages) doi:10.1115/1.3244381 History: Received October 29, 1979; Online October 20, 2009


The efficient extraction of a high-temperature working fluid from a coal-fired fluidized bed combustor depends, to a great extent, on the design of the immersed heat exchanger. Of special importance is the solidity of the cooling tubes immersed in the bed. The interaction between increasing solidity and the consequent degradation of proper fluidization and circulation is being studied at the New York University fluidized bed combustion facility. In a preliminary set of experiments it was found that under certain conditions, the solidity of heat exchanger in the bed may be significantly increased, giving designers an additional variable parameter.

Copyright © 1980 by ASME
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