A closed feedwater heater, with a transmittance of U=350Btu/hr-ft²-F, uses condensing steam at 20 psia (tsat=227.96F) for heating 85,000lb/hr of water from 60F to 215F. What is the transmitting area? a. 627 ft² b. 622ft² d. 234ft² c. 876ft²

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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A closed feedwater heater, with a transmittance of U=350Btu/hr-ft²-F, uses condensing steam at 20
psia (tsat=227.96F) for heating 85,000lb/hr of water from 60F to 215F. What is the transmitting
area?
a. 627 ft² b. 622ft²
c. 876ft²
d. 234ft²
Transcribed Image Text:A closed feedwater heater, with a transmittance of U=350Btu/hr-ft²-F, uses condensing steam at 20 psia (tsat=227.96F) for heating 85,000lb/hr of water from 60F to 215F. What is the transmitting area? a. 627 ft² b. 622ft² c. 876ft² d. 234ft²
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