NOTE: This is a multi-part question Once an answer is submitted you will be unable to return to t...
NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. Refrigerant-134a enters an adiabatic compressor as saturated vapor at 100 kPa at a rate of 1.3 m3/min and exits at 1-MPa pressure. The isentropic efficiency of the compressor is 87 percent. 1 MPa R-134a Compressor 100 kPa sat. vapor Determine the temperature of the refrigerant at the exit of the compressor. Use the tables for R-134a. (You must provide an...
-Week 12 6 Help S Required information NOTE: This is a multi-part question. Once an answer is submitted. you wiw be unable to retuwn to this part A two-stage compression refrigeration system operates with refrigerant-134a between the pressure limits of 1.4 MPa and 010 MPa. The refrigerant leaves the condenser as a saturated liquid and is throttled to a flash chamber operating at 0.6 MPa. he flash chamber is maintained at the same pressure as the low pressure discharge which...
Problem 2 (30 pts): Consider a two-stage vapor-compression refrigeration system operating between the pressure limits of 1.5 MPa and 150 kPa with refrigerant-134a as the working fluid. The refrigerant leaves the condenser as a saturated liquid and is throttled to a flash chamber operating at 0.45 MPa. The mass flow rate of the refrigerant through the low pressure compressor is 0.15 kg/s. Assuming the refrigerant leaves the evaporator as a saturated vapor, determine (a) the mass flow rate of the...
(12 points) A refrigerator using refrigerant-134a as the working fluid operates on the vapor compression cycle. The cycle operates between 200 kPa and 1.2 MPa. The refrigerant flows through the cycle at a rate of 0.019 kg/s. The (actual) refrigerator has a compressor with an isentropic efficiency of 85%. The refrigerant enters the compressor slightly superheated by 56 C hint add this to the saturation temperature). The refrigerant leaves the condenser slightly subcooled by 1.9°C. What is the rate of...
Tt (12 points) A refrigerator using refrigerant-134a as the working fluid operates on the vapor compression cycle. The cycle operates between 200 kPa and 1.2 MPa. The refrigerant flows through the cycle at a rate of 0.015 kg/s. The actual) refrigerator has a compressor with an isentropic efficiency of 82%. The refrigerant enters the compressor slightly superheated by 6.2°C (hint: add this to the saturation temperature). The refrigerant leaves the condenser slightly subcooled by 1.8°C. What is the rate of...
please answer all parts and show all work. Please include P-h chart work as welll Problem 2 (30 pts): Consider a two-stage vapor-compression refrigeration system operating between the pressure limits of 1.5 MPa and 150 kPa with refrigerant-134a as the working fluid. The refrigerant leaves the condenser as a saturated liquid and is throttled to a flash chamber operating at 0.45 MPa. The mass flow rate of the refrigerant through the low pressure compressor is 0.15 kg/s. Assuming the refrigerant...
NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. The gas-turbine cycle of a combined gas-steam power plant has a pressure ratio of 8. Air enters the compressor at 290 K and the turbine at 1400 K. The combustion gases leaving the gas turbine are used to heat the steam at 15 MPa to 450°C in a heat exchanger. The combustion gases leave the heat exchanger at 247°C. Steam...
Consider a two-stage cascade refrigeration system operating between the pressure limits of 0.8 and 0.14 MPa. Each stage operates on the ideal vapor-compression refrigeration cycle with refrigerant-134a as the working fluid. Heat rejection from the lower cycle to the upper cycle takes place in an adiabatic counterflow heat exchanger where both streams enter at about 0.55 MPa. The mass flow rate of the refrigerant through the upper cycle is 0.24 kg/s(a) Illustrate the two-stage cascade refrigeration cycle on both a...
1. Refrigerant 134a enters the compressor of a refrigerator as superheated vapor at 0.20 MPa and -10 °C at a rate of 0.07 kg/s, and it leaves at 1.2 MPa and 70 °C. The refrigerant is cooled in the condenser to 44 °C and 1.130 MPa and it is throttled to 0.20 MPa. Disregarding heat transfer and pressure drop in the connecting lines between the components, show the cycle on a T-s diagram with respect to the saturation line. Determine...
Required Information NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to retum to this part. Refrigerant-134a enters an adiabatic compressor as saturated vapor at 100 kPa at a rate of 0.9 m/min and exits at 1MPa pressure. The Isentropic efficiency of the compressor is 87 percent. 1 MPа R-134a Compressor 100 kPa sal vapor Determine the temperature of the refrigerant at the exit of the compressor. Use the tables for R-134a. (You must...