Refrigeration and Air Conditioning Technology (MindTap Course List)
8th Edition
ISBN: 9781305578296
Author: John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher: Cengage Learning
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Chapter 28, Problem 16RQ
An R-404A system is operating with a -50°F evaporator and the condenser is operating at 115°F. What is the compression ratio of this system?
A. 16.9 to 1
B. 17.8 to 1
C. 19.1 to 1
D. 21.33 to 1
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Chapter 28 Solutions
Refrigeration and Air Conditioning Technology (MindTap Course List)
Ch. 28 - List the evaporating temperatures for liquid...Ch. 28 - Prob. 2RQCh. 28 - Prob. 3RQCh. 28 - Prob. 4RQCh. 28 - Prob. 5RQCh. 28 - Prob. 6RQCh. 28 - Prob. 7RQCh. 28 - Which are power supplies used for truck...Ch. 28 - What type of reserve capacity does truck...Ch. 28 - Why is truck refrigeration designed to provide...
Ch. 28 - How is the air distributed over the cargo in truck...Ch. 28 - Name two types of engines used for truck...Ch. 28 - Prob. 13RQCh. 28 - Truck trailers with their own refrigeration...Ch. 28 - Why is two-stage compression popular for...Ch. 28 - An R-404A system is operating with a -50F...Ch. 28 - Describe cascade refrigeration and tell why more...Ch. 28 - Why is a circulating brine system more attractive...Ch. 28 - Two methods used to power refrigeration...
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- Can you answer this question?arrow_forwardA gear has a gear wheel with 16 teeth. The gear should be dimensioned for the highest and lowest gear ratio. Looking for output power, torque, speed?nin= 2000 rpmmin = 30Nmn=0,9a max= 450 mmModule 4Gear limitsz1 z213 13-1614 14-2615 15-4516 16-10117 17-131418 18-…..I have calculate but I can’t get the right answers…..√16 =459x60/56x57=1.1 lowest59x60/13x13=20,94 highestnut=2000/1.1= 1818rpmnut=2000/20.94=95.5 rpmMut=1.1x30=33 NmMut=20.94x30=628,2 Nm(Right answer)LowestZ=13, M=24,4Nm, n=2462 rpmHighestZ=92, M=172,5Nm, n=347,8 rpmP=5655W on botharrow_forwardPlease see attached pic.arrow_forward
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