As shown in the figure, Refrigerant 22 enters the compressor of an air conditioning unit operating at steady state at 40°F, 80 lbf/in² and is compressed to 160°F, 200 lb/in2. The refrigerant exiting the compressor enters a condenser where energy transfer to air as a separate stream occurs, and the refrigerant exits as a liquid at 200 lb/in², 90°F. Air enters the condenser at 80°F, 14.7 lb-/in² with a volumetric flow rate of 750 ft³/min and exits at 110°F. Neglect stray heat transfer and kinetic and potential energy effects, and assume ideal gas behavior for the air. 5 1; -110°F www www Compressor 1+R22 at T₂=160°F P₂-200 lbf in ¹ Condenser 4 + Air at T₁ P4-14.71bfin² (AV)4 7₁-90°F P=200 lbf/in. ² T₂ = 60°F T₂ = 90°F T₁ = 40°F P2 P3200 lb/in² AF Pi = 80 Ibrin² I₁ = 40°F P1-80 lbf/in² Determine the mass flow rate of refrigerant, in lb/min, and the compressor power, in horsepower.

As shown in the figure, Refrigerant 22 enters the compressor of an air conditioning unit operating at steady state at 40°F, 80 lbf/in² and is compressed to 160°F, 200 lb/in2. The refrigerant exiting the compressor enters a condenser where energy transfer to air as a separate stream occurs, and the refrigerant exits as a liquid at 200 lb/in², 90°F. Air enters the condenser at 80°F, 14.7 lb-/in² with a volumetric flow rate of 750 ft³/min and exits at 110°F. Neglect stray heat transfer and kinetic and potential energy effects, and assume ideal gas behavior for the air. 5 1; -110°F www www Compressor 1+R22 at T₂=160°F P₂-200 lbf in ¹ Condenser 4 + Air at T₁ P4-14.71bfin² (AV)4 7₁-90°F P=200 lbf/in. ² T₂ = 60°F T₂ = 90°F T₁ = 40°F P2 P3200 lb/in² AF Pi = 80 Ibrin² I₁ = 40°F P1-80 lbf/in² Determine the mass flow rate of refrigerant, in lb/min, and the compressor power, in horsepower.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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A rigid tank whose volume is 0.5 m³, initially containing ammonia at 20°C, 1.5 bar, is connected by a valve to a large supply line carrying ammonia at 12 bar, 130°C. The valve is opened only as long as required to fill the tank with additional ammonia, bringing the total mass of ammonia in the tank to 136.7 kg. Finally, the tank holds a two-phase liquid-vapor mixture at 20°C. Determine the heat transfer to the ammonia in the tank from the surroundings, in kJ, ignoring kinetic and potential energy effects. lev = eTextbook and Media Hint ! kJ.
As shown in the figure, Refrigerant 22 enters the compressor of an air conditioning unit operating at steady state at 40°F, 80 lbp/in² and is compressed to 160°F. 200 lb/in?. The refrigerant exiting the compressor enters a condenser where energy transfer to air as a separate stream occurs, and the refrigerant exits as a liquid at 200 lb/in², 90°F. Air enters the condenser at 75°F, 14.7 lb/in² with a volumetric flow rate of 1000 ft3/min and exits at 110°F. Neglect stray heat transfer and kinetic and potential energy effects, and assume ideal gas behavior for the air. Step 1 Compresser 1+R22 Hint Step 2 mg22 = 7.026 7-11 wwwww www Wa= 7₂=160 F P-200 7₁-4FF P-80² Your answer is correct. Determine the mass flow rate of refrigerant, in lb/min. Determine the mass flow rate of refrigerant, in lb/min, and the compressor power, in horsepower. * Your answer is incorrect. 2.125 -Condemer lb/min Determine the compressor power, in horsepower. Aus at T P 1471² (AV) 7₁-90°F Py = 200 m² hp P == 300…
Refrigerant 134a enters a well-insulated nozzle at 200 lbf/in.2, 140°F, with a velocity of 120 ft/s and exits at 10 lbf/in.² with a velocity of 1500 ft/s. For steady-state operation, and neglecting potential energy effects, determine the temperature, in °F, and the quality of the refrigerant at the exit. T₂ = i 29.615 x2 = 78.516 % °F
As shown in the figure, Refrigerant 22 enters the compressor of an air conditioning unit operating at steady state at 40°F, 80 lb;/in? and is compressed to 160°F, 200 Ib;/in?. The refrigerant exiting the compressor enters a condenser where energy transfer to air as a separate stream occurs, and the refrigerant exits as a liquid at 200 Ib:/in?, 90°F. Air enters the condenser at 70°F, 14.7 lb:/in? with a volumetric flow rate of 750 ft/min and exits at 110°F. Neglect stray heat transfer and kinetic and potential energy effects, and assume ideal gas behavior for the air. Condenser Air at T P4=14.7 1bf'in.? (AV), 5 4 wwww T I; =110°F 3 p2 = p3 = 200 ib/in = 60°F T,= 160°F P2= 200 lbfin. T3- 90'F P=200 Ibf/in2 T3 = 90°F pi = 80 lbrin? T1 Compressor = 40°F 1+ R22 at Iz = 40°F Pi - 80 Ibf/in.? Determine the mass flow rate of refrigerant, in Ib/min, and the compressor power, in horsepower.
Thermodynamics 1
A rigid tank whose volume is 0.5 m³, initially containing ammonia at 20°C, 1.5 bar, is connected by a valve to a large supply line carrying ammonia at 12 bar, 200°C. The valve is opened only as long as required to fill the tank with additional ammonia, bringing the total mass of ammonia in the tank to 143.4 kg. Finally, the tank holds a two-phase liquid-vapor mixture at 20°C. Determine the heat transfer to the ammonia in the tank from the surroundings, in kJ, ignoring kinetic and potential energy effects. Qey = i 181532.33 kJ
Refrigerant 134a enters an insulated diffuser as a saturated vapor at 80°F with a velocity of 1400 ft/s. The inlet area is 1.4 in². At the exit, the pressure is 400 lb/in² and the velocity is negligible. The diffuser operates at steady state and potential energy effects can be eglected. Determine the mass flow rate, in lb/s, and the exit temperature, in °F. Step 1 Your answer is correct. Determine the mass flow rate, in lb/s. m = 28.887 Hint Step 2 lb/s. Determine the exit temperature, in °F. T₂ = i OF Attempts: 1 of 4 used
A system consisting of a gas contained in a cylinder with a frictionless piston is taken around the closed path a→b→c→a where the process c→a is isothermal. During the closed cycle, the system expels 150 J to the environment. If the work done on the system during the isobaric leg b→c of the cycle is 250 J, what is the heat expelled/absorbed by the gas in the isothermal leg c→a in J.
Refrigerant 134a enters a well-insulated nozzle at 200 Ibf/in.?, 170°F, with a velocity of 120 ft/s and exits at 50 Ibf/in.2 with a velocity of 1500 ft/s. For steady-state operation, and neglecting potential energy effects, determine the temperature, in °F, and the quality of the refrigerant at the exit. T2 = i °F i % X2 =