| Part of a refrigeration system operates at steady state with Refrigerant 22 as shown in the figurebelow. There is no significant heat transfer to or from the heat exchanger, valve, and piping. Kineticand potential energy effects are negligible.State 1 is a saturated liquid. What temperature is it, in °F?Describe the refrigerant at state 4 as one of the following: compressed liquid, saturatedliquid, tyro-phase mixture, saturated vapor, or superheated vapor.Determine the required mass flow for the given operating conditions, in lb/min.Determine the rate of heat transfer between the evaporator and its surroundings, inb.Btu/min. Make sure to clearly state the direction of heat transfer.1.T=10°FP= 15 Ibf in(AV), = 9.5 ft/min.Pi= 120 Ibf/in.?HeatexchangerThrottlingvalveEvaporatorP 15 lbfin.2X3 = 1.0P2= 15 lbf/in.2

a) At state 1 , saturated liquid at 120 lbf/in2. from the R-22 table : Tsat=61.942 °F

|Part of a refrigeration system operates at steady state with Refrigerant 22 as shown in the figure below. There is no significant heat transfer to or from the heat exchanger, valve, and piping. Kinetic and potential energy effects are negligible. State I is a saturated liquid. What temperature is it, in °F? Describe the refrigerant at state 4 as one of the following: compressed liquid, saturated liquid, tyo-phase mixture, saturated vapor, or superheated vapor. Determine the required mass flow for the given operating conditions, in lb/min. Determine the rate of heat transfer between the evaporator and its surroundings, in Btu/min. Make sure to clearly state the direction of heat transfer. b. T-10 F p. = 15 Ibfi. (AV), = 9.5 ft min. P= 120 lbf/in.? Heat exchanger Throttling valve Evaporator P 15 lbfin ² x3 =1.0 P2=15 lbf/in.2

|Part of a refrigeration system operates at steady state with Refrigerant 22 as shown in the figure below. There is no significant heat transfer to or from the heat exchanger, valve, and piping. Kinetic and potential energy effects are negligible. State I is a saturated liquid. What temperature is it, in °F? Describe the refrigerant at state 4 as one of the following: compressed liquid, saturated liquid, tyo-phase mixture, saturated vapor, or superheated vapor. Determine the required mass flow for the given operating conditions, in lb/min. Determine the rate of heat transfer between the evaporator and its surroundings, in Btu/min. Make sure to clearly state the direction of heat transfer. b. T-10 F p. = 15 Ibfi. (AV), = 9.5 ft min. P= 120 lbf/in.? Heat exchanger Throttling valve Evaporator P 15 lbfin ² x3 =1.0 P2=15 lbf/in.2

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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Concept explainers

Heat Exchangers

Heat exchangers are the types of equipment that are primarily employed to transfer the thermal energy from one fluid to another, provided that one of the fluids should be at a higher thermal energy content than the other fluid.

Heat Exchanger

The heat exchanger is a combination of two words ''Heat'' and ''Exchanger''. It is a mechanical device that is used to exchange heat energy between two fluids.

Question

| Part of a refrigeration system operates at steady state with Refrigerant 22 as shown in the figure
below. There is no significant heat transfer to or from the heat exchanger, valve, and piping. Kinetic
and potential energy effects are negligible.
State 1 is a saturated liquid. What temperature is it, in °F?
Describe the refrigerant at state 4 as one of the following: compressed liquid, saturated
liquid, tyro-phase mixture, saturated vapor, or superheated vapor.
Determine the required mass flow for the given operating conditions, in lb/min.
Determine the rate of heat transfer between the evaporator and its surroundings, in
b.
Btu/min. Make sure to clearly state the direction of heat transfer.
1.
T=10°F
P= 15 Ibf in
(AV), = 9.5 ft/min.
Pi= 120 Ibf/in.?
Heat
exchanger
Throttling
valve
Evaporator
P 15 lbfin.2
X3 = 1.0
P2= 15 lbf/in.2

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