A refrigeration cycle is chosen to maintain a freezer compartment a that is at 90.0°F. If 200. Btu/min are extracted from the freezer con transfer and the freezer is driven by a 1.00 hp electric mot dimensionless coefficient of performance (COP)of the unit, defined divided by the input power. Determine the energy transport rate for the system shown in Figure Fuel flow Top heat loss 180,000 Btu/h Exhaust flow Epuet 15,000 Btu/min Eathaur=500, Btu/min System boundary Engine-generator set 200. hp Bottom heat loss 54,000 Btu/h 50.0 hn

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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a) A refrigeration cycle is chosen to maintain a freezer compartment at 10.0°F in a room
that is at 90.0°F. If 200. Btu/min are extracted from the freezer compartment by heat
transfer and the freezer is driven by a 1.00 hp electric motor, determine the
dimensionless coefficient of performance (COP)of the unit, defined as the cooling rate
divided by the input power.
b) Determine the energy transport rate for the system shown in Figure below.
Fuel flow
Top heat loss
Exhaust flow
Epuet=15,000 Btu/min
180,000 Btu/h
Ecshaut =500. Btu/min
System
boundary
Engine-generator set
200. hp
Bottom heat loss
54,000 Btu/h
50.0 hp
Electrical workout
Transcribed Image Text:a) A refrigeration cycle is chosen to maintain a freezer compartment at 10.0°F in a room that is at 90.0°F. If 200. Btu/min are extracted from the freezer compartment by heat transfer and the freezer is driven by a 1.00 hp electric motor, determine the dimensionless coefficient of performance (COP)of the unit, defined as the cooling rate divided by the input power. b) Determine the energy transport rate for the system shown in Figure below. Fuel flow Top heat loss Exhaust flow Epuet=15,000 Btu/min 180,000 Btu/h Ecshaut =500. Btu/min System boundary Engine-generator set 200. hp Bottom heat loss 54,000 Btu/h 50.0 hp Electrical workout
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