Propane is to be burned with 25.0% excess air. Before entering the furnace, the air is preheated

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Propane is to be burned with 25.0% excess air. Before entering the furnace, the air is preheated from 32°F to 575°F.

(a) At what rate (Btu/h) must heat be transferred to the air if the feed rate of propane is 1.35x10⁵ SCFH (ft³/h at STP)?

(b) The stack gas leaves the furnace at 855°F. How is the air likely to be preheated?

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Elementary Principles of Chemical Processes

ISBN: 978-1119498759

4th edition

Authors: Richard M. Felder, ‎ Ronald W. Rousseau, ‎ Lisa G. Bullard

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Question Posted: May 21, 2020 07:54 AM

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Propane is to be burned with 25.0% excess air. Before entering the furnace, the air is preheated

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a Rxn Of Combustion b When we taken 25 excess air the N 2 also comes in air and 25 o...View the full answer

Elementary Principles of Chemical Processes

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