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Forensic Engineering Fundamentals
book

Forensic Engineering Fundamentals

by Harold Franck, Darren Franck
December 2012
Beginner to intermediate content levelBeginner to intermediate
487 pages
17h
English
CRC Press
Content preview from Forensic Engineering Fundamentals
144 Forensic Engineering Fundamentals
is capacity is also the same as 12,000 Btu/h or 200 Btu/min. e eciency of a vapor
compression system is given by the horsepower used per ton of refrigeration. If the refrig-
eration is N tons, or 200 N Btu/min, and since 1 hp = 42.44 Btu/min, then
hp
N
==
200
42 44
472
.
.
γγ
(6.6)
Equation 6.6 represents the horsepower per ton of refrigeration required for the cycle.
Figure 6.6 represents a compression refrigeration cycle. e main components include a
compressor, a condenser, an expansion valve, and an evaporator.
e refrigeration takes place on either side of the evaporator where
Qh
rE
=∆ Btu/lb
(6.7)
In the heati ...
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Publisher Resources

ISBN: 9781439878392