conditions shown in the diagram, how much heat is saved if the air supply is 5,000 cfm and the wheel is 95% effective?

Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
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The enthalpy wheel saves energy in the
winter season by warming the incoming
outdoor air with the return air. For the
conditions shown in the diagram, how
much heat is saved if the air supply is 5,000
cfm and the wheel is 95% effective?
Answer: About 110,000 Btu/h.]
WINTER CONDITIONS
SUPPLY AIR
53°F DB
40°F WB
RETURN AIR
72°F DB
54°F WB
OUTDOOR AIR
7°F DB
6°F WB
EXHAUST AIR
27°F DB
20°F WB
Transcribed Image Text:The enthalpy wheel saves energy in the winter season by warming the incoming outdoor air with the return air. For the conditions shown in the diagram, how much heat is saved if the air supply is 5,000 cfm and the wheel is 95% effective? Answer: About 110,000 Btu/h.] WINTER CONDITIONS SUPPLY AIR 53°F DB 40°F WB RETURN AIR 72°F DB 54°F WB OUTDOOR AIR 7°F DB 6°F WB EXHAUST AIR 27°F DB 20°F WB
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