As shown in the figure, Refrigerant 22 enters the compressor of an air conditioning unit operating at steady state at 40°F, 80 lb/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 75°F, 14.7 lb,/in² with a volumetric flow rate of 1500 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.

As shown in the figure, Refrigerant 22 enters the compressor of an air conditioning unit operating at steady state at 40°F, 80 lb/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 75°F, 14.7 lb,/in² with a volumetric flow rate of 1500 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.

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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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 Ibp/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 lbf/in?, 90°F. Air enters the condenser at 80°F, 14.7 Ibf/in² 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 wwww www Air at T P4=14.7lbfin? (AV), I;=110°F hn 00 ק = P2 | Tz= 160°F P2=200 lb£in_? T;-90°F P3 =200 bf/n ² T2 = 60°F = 90°F pi = 80 brin? Compressor = 40°F 1- R22 at Iz=40°F P-80 Ibfin_? Determine the mass flow rate of refrigerant, in Ib/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 40oF, 80 lbf/in2 and is compressed to 160oF, 200 lbf/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 lbf/in2, 90oF. Air enters the condenser at 70oF, 14.7 lbf/in2 with a volumetric flow rate of 1500 ft3/min and exits at 110oF. Neglect stray heat transfer and kinetic and potential energy effects, and assume ideal gas behavior for the air.
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…
As shown in the figure, Refrigerant 22 enters the compressor of an air conditioning unit operating at steady state at 40°F, 80 Ib/in? and is compressed to 160°F, 200 Ib/in². The refrigerant exiting the compressor enters a condenser where energy transfer to air as a lisco separate stream occurs, and the refrigerant exits as a liquid at 200 lb/in?, 90°F. Air enters the condenser at 70°F, 14.7 Ib:/in? with a volumetric flow rate of 1000 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 wwww Air at T, Pa=14.7 lbfin (AV), 110°F P2 = p3= 200 Ibn I3-90'F A=200 bin 2 = 60°F = 160 F P-200 1fin. = 90°F pi= 30 Ibrin T. Campressor = 40'F 1 R22 at I-40°F P-80 Itlin? Determine the mass flow rate of refrigerant, in Ib/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 Ibf/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 lb/in?, 90°F. Air enters the condenser at 75°F, 14.7 Ibf/in?with a volumetric flow rate of 1250 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 bfin? (AV), P2 = p3 = 200 1b/in² T: = 60°F T,= 160°F P2=200 lbfin? T3-90'F A=200 bf/in 2 T3 = 90°F pi = 80 1brin? Compressor = 40°F 1+ R22 at I=40°F Pi - 80 Ibflin ? Determine the mass flow rate of refrigerant, in Ib/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 lb/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 70°F, 14.7 lb-/in² with a volumetric flow rate of 1500 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 I₁-110°F Compressor 1+ R22 at MR22 = www www T₂-160°F P₁-200 lbfin.² Condenser Air at T₁ P4-14.71bfin.² (AV), 7₁-90°F P-200 lbf/in² T₁=40°F Pi-80 lbfin.² Determine the mass flow rate of refrigerant, in lb/min, and the compressor power, in horsepower. Determine the mass flow rate of refrigerant, in lb/min. lb/min T₂ <- 60°F T₁ = 90°F T₁ = 40°F Pa = Pa = 200 bin² P-801brin²
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 lbf/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 lbf/in², 90°F. Air enters the condenser at 75°F, 14.7 lbf/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. I, 110°F Compressor 1+ R22 at 7₂=160°F P₂-200 lbfin2 T₁=40°F P1-80 lbf/in 2 -Condenser мишин -www Air at T₁ P4-14.7 lbfin.² (AV)4 73-90°F P=200 lbf/in ² T₂ <= 60°F T₁ = 90°F T₁ = 40°F - A Determine the mass flow rate of refrigerant, in lb/min, and the compressor power, in horsepower. P2 P3200 lb/in² pi = 80 lbrin²
The figure belows shows three components of an air-conditioning system, where 105°F and 4.5 lb/s. Refrigerant 134a flows through a throttling valve and a heat exchanger while air flows through a fan and the same heat exchanger. Data for steady-state operation are given on the figure. There is no significant heat transfer between any of the components and the surroundings. Kinetic and potential energy effects are negligible. Modeling air as an ideal gas with constant cp = 0.240 Btu/lb · °R, determine the mass flow rate of the air, in lb/s.
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.
4.30 Refrigerant 134a enters a heat exchanger operating ai steady state as a superheated vapour at 10 bars. 60°C. where it is cooled and condensed to saturated liquid at 10 bars. The mass flow rate of the refrigerant is 10 kg/min. A separate stream of air enters the heat exchanger at 37°C with a mass flow rate of 80 kg/min. Ignoring heat transfer from the outside of the heat exchanger and neglecting kinetic and potential energy effects, determine the exit air temperature, in °C.
CHR 6. An inventor comes to you with a device that produces work. She tells you helium gas at 10 atm and 650 K enters the device and exits at 2 atm and 260 K. Assume an ideal gas with constant specific heat and the surroundings are at 25 C, Cp = 5.2 kJ/kg-K. Is this process possible assuming steady-state operation?
4. Considering the Typical Energy Balance for gasoline engine, @ atmospheric condition of 1.013 bar and 26°C with constant speed of 2800 rpm, intake air flow rate of 190 Kg/hr, and volumetric efficiency of 75%. If 16.61 KW of energy loss to surrounding was considered. Determine a. The amount of torque in Nm needed b. The mass flow rate of fuel in Kg/hr with calorific value of 45 400 KJ/Kg c. The volume displacement Note: Typical Full Load Energy Balance for Gasoline Engine based on 100% fuel input ЕСТВР -25% ELTCW -30% ELTEG - 37% ELTS 8%