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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Textbook Question
Chapter 40, Problem 3RQ
The evaporator will normally operate at a(n) _____°F boiling temperature when the indoor temperature is 75°Fwith a 50% humidity condition.
A. 40
B. 50
c. 60
D. 70
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Chapter 40 Solutions
Refrigeration and Air Conditioning Technology (MindTap Course List)
Ch. 40 - The standard design conditions for...Ch. 40 - The typical temperature relationship between a...Ch. 40 - The evaporator will normally operate at a(n)...Ch. 40 - A typical temperature relationship between a...Ch. 40 - How is condenser high efficiency obtained?Ch. 40 - High-efficiency air-conditioning systems may use...Ch. 40 - What does the head pressure do If the suction...Ch. 40 - What will cause the suction pressure to rise?Ch. 40 - The evaporator design temperature may in some...Ch. 40 - The seasonal energy efficiency ratio (SEER)...
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- Which process would best represent the opposite ofexhausting air from a system?A. CoolingB. VentilatingC. HeatingD. Filteringarrow_forward1- What is the pressure at the Economizer (in bar)? 2- What is the pressure at the Evaporator (in bar)? 3- How much heat received by the Economizer (kW)? 4- How much heat received by the Evaporator (kW)? 5- How much heat received by the Superheater (kW)? 6- How much heat received by the FWH (KW)?.. 7- How much heat received from the fuel burning (kW)? 8- How much heat rejected at the chimney (kW)?. T=35 C From the Pump m-1.3 kg/s + Cpw=4.2 kJ/kg.C ****************** T=150 C, To the Turbine Cp 1.008kJ/kg.K T=400C 44 T=212.2 X=0.0 X=0.85 Chimney Hoo bou to Economizer Evaporator Super Heater -Air, m-4 kg/s, T=20 C P=5 bar, X=0.8, m=0.3 kg/s from FWH X=1 1 Fuel, T-20 C, m=0.2 kg/s, C.V=33.5 MJ/kg Bumerarrow_forwardTrue or False? Evaporative Cooling does not occur at Dew Point Temperature.arrow_forward
- Choose correct answer: In a condenser, the vacuum is found to be 2 N/cm2. The barometer reads 735 mm of Hg, then its approximate absolute pressure is ____________ A. 786.47 kPa B. None of the answers given C. 0.078647 N/mm2 D. 786470 N/m2arrow_forwardThe standard design conditions for air-conditioning systemsestablished by the Air-Conditioning, Heating andRefrigeration Institute (AHRI) are outside temperature______°F, inside temperature ______°F, with a humidityof ______%.arrow_forwardWhat is the purpose of multiple passes in a chiller evaporator?arrow_forward
- The typical temperature relationship between a standard-efficiency air-cooled condenser and the ambient temperature is A. 50F. B. 40F C. 30F. D. 20F.arrow_forwardWhen the air temperature in a domestic freezer is 0F, the plate-type evaporator temperature may be as low as A. -30F. B. -12F. C. -6F. D. 0F.arrow_forwardDescribe the operation of the evaporative system integrity check.arrow_forward
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