Refrigerant-134a is throttled from the saturated liquid state at 700 kPa to a pressure of 170.9 kPa. Determine the temperature dropduring this process and the final specific volume of the refrigerant. The inlet enthalpy of R-134a is 88.82 kJ/kg and saturationtemperature is 26.69°C.P₁= 700 kPasat. liquidR-134aP₂ kPaThe temperature drop is°C.The final specific volume ism³/kg. (Round the final answer to three decimal places.)

Step 1:Given dataInlet (1) : Saturated liquid ,P1 = 700kPa, h1 = 88.82kJ/kg, T1 = 26.69oCOutlet…

Answered: Refrigerant-134a is throttled from the…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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B6
Atmospheric air at 40°C dbt and 55% RH is passed over a cooling coil at the rate of 600 m'/mint. At exit from coil the air is saturated and its temperature is 8°C. The condensate also leaves at 8°C. Determine the amount of condensate leaving coil per minute and refrigeration in kW, The specific heat of superheated steam may be assumed to be 1.88 kJ/kg-K. Solve the problem without psychromatic chart.
Isentropic efficiency of compressor
Refrigerant-134a is throttled from the saturated liquid state at 800 kPa to a temperature of -20°C. a. Determine the pressure of the refrigerant at the final state. b. Determine the quality of the refrigerant at the final state.
(3) Refrigerant-134a is throttled from the saturated liquid state at 700 kPa to a pressure of 160 kPa. Determine (a) The temperature drop during this process (b) The final specific volume of the refrigerant. P = 700 kPa Sat. liquid R-134a P; = 160 kPa
A mixture of refrigerant-134a at 120 kPa enters an evaporator with quality 0.12 and leaves it as fully vaporized (quality equal to 1). The latent heat is provided by 16.4 kg/s of air entering in the device at 23 ºC and exiting at 7 °C. Assume constant specific heat of the air cp=1.005 kJ/(kg K). Calculate the mass flow rate of the refrigerant in kg/s to 2 decimal places.
Refrigerant -134a at 200 kPa and 40 C flows through a refrigeration line. Determine its specific volume.
Air enters a refrigeration coil at 32°C db and 24°C wb at a rate of 40 m3 /min. The apparatus dew point temperature of the coil is 13°C. If 18 kW of refrigeration are produced, what is the dry bulb temperature of the air leaving the coil? Assume sea-level pressure. Show the states on psychrometric chart showing all the points.
Thermodynamics
An adiabatic capillary tube is used in some refrigeration systems to drop the pressure of the refrigerant from the condenser level to the evaporator level. The R-134a enters the capillary tube as a saturated liquid at 50°C and leaves at -22.00°C. Determine the quality of the refrigerant at the inlet of the evaporator. Use data from the tables. (Round the final answer to three decimal places.) The quality of the refrigerant is
NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. An adiabatic air compressor compresses 10.4 L/s of air at 120 kPa and 20°C to 1000 kPa and 300°C. The constant pressure specific heat of air at the average temperature of 160°C = 433 K is cp= 1.018 kJ/kg.K. The gas constant of air is R = 0.287 kPa.m³/kg-K. 1 MPa 300°C Compressor 120 kPa 20°C Vus Determine the work required by the compressor. (You must provide an answer before moving on to the next part.) The work required by the compressor is -4.578 kJ/kg.
NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. An adiabatic air compressor compresses 10.4 L/s of air at 120 kPa and 20°C to 1000 kPa and 300°C. The constant pressure specific heat of air at the average temperature of 160°C = 433 K is cp= 1.018 kJ/kg.K. The gas constant of air is R = 0.287 kPa.m³/kg.K. 1 MPa 300°C Compressor 120 kPa 20°C Vus Determine the power required to drive the air compressor in kW. The power required to drive the air compressor is o kW.

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