PART A ONLY ( USE IMAGE BELOW) In a standard ideal refrigeration cycle (Fig. 1), the refrigerant 134a enters adiabatically isolated expansion valve as a saturated liquid at a pressure P1 = 1 MPa and leaves the device at a pressure P2 = 100kPa. Then the refrigerant enters the evaporator, where it changes into the saturated vapor. Subsequently, the vapor is compressed in an isentropic compressor to the pressure 1MPa and condensed in the condenser back to the initial saturated-liquid state. PART A - Determine the heat qL absorbed by the refrigerant in the evaporator and the compressor work win (per 1 kg of the refrigerant).

PART A ONLY ( USE IMAGE BELOW) In a standard ideal refrigeration cycle (Fig. 1), the refrigerant 134a enters adiabatically isolated expansion valve as a saturated liquid at a pressure P1 = 1 MPa and leaves the device at a pressure P2 = 100kPa. Then the refrigerant enters the evaporator, where it changes into the saturated vapor. Subsequently, the vapor is compressed in an isentropic compressor to the pressure 1MPa and condensed in the condenser back to the initial saturated-liquid state. PART A - Determine the heat qL absorbed by the refrigerant in the evaporator and the compressor work win (per 1 kg of the refrigerant).

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter9: Heat Transfer With Phase Change

Section: Chapter Questions

Problem 9.28P

See similar textbooks

Similar questions

Which process results in the greatest endothermic change for 10.0g of H2O
If 14.8kJ of heat is given off when 1.6g of HCI condenses from vapor to liquid. What is ΔHcond for this substance?
What is the dryness fraction at state 6 to 3 d.p.
Steam of 1.4MN/m2 and of dryness fraction 0.7 is throttled to 0.11MN/m2 determine the dryness fraction of the steam after throttling?
A total of 250 g of CO2 gas at 373 K is heated to 873 K at a pressure of 101.32 kPa. Calculate the amount of heat needed in: a. cal b. btu c. kJ
Moist air at 30oC and 50% relative humidity is cooled to 10oC. If the air has a volumetric flow rate of 20m3/min, and condensate water at 10oC is collected, draw the cycle on the attached chart and determine: b) The amount of water collected in the dehumidifier
Butane is a common fuel used in cigarette lighters and camping stoves. Normally supplied in metal containers under pressure, the fuel exists as a mixture of liquid and gas, so high temperatures may cause the container to explode. At 25.0oC, the vapor pressure of butane is 2.3 atm. What is the pressure in the container at 1358C (∆H o vap = 24.3 kJ/mol)?
Read the question carefully and give me right solution according to the question. One m3/s of air at 12°C and 50% RH is heated and humidified using saturated steam at 100 °C to a final state of 38°C and 50% relative humidity. Sketch the process on the psychrometric chart and calculate the following: (a) Mass flow rate (b) Steam flow rate needed (c) Heating coil capacity
Identify if the following phase is saturated, subcooled, superheated, or wet-mixture. Pressure Specific Volume Phase MPa m3/kg 3 0.001213 ?
1. The liquid-vapor equilibrium curve for R134A over the range from the triple point to the critical point may be expressed by the Wagner formula: T, (In[C])= ar + br15+cr + drº Where Pr & Tr are reduced pressure and temperature respectively and al-T, While the P and T are the saturation pressure (kPa) and temperature [K] in the reduced pressure & temperature relations, and the a,b,c, and d are constant. Drive an expression for enthalpy of condensation in terms of the constants a, b, c, d and T and Vig.
determine the properties of H2O using steam table 1. saturated liquid at T= 253.5 deg C please explain the interpolation process and how to get the result
A kilogram of wet steam is taken as a sample for study. It has a pressure of 0.805 MPa and an enthalpy of 2287 kJ/kg. What is the moisture percentage of the steam?