b) A steam turbine that uses refrigerant 134-a as the working fluid is passed through a diffuser. The state of refrigerant before entering the diffuser is saturated vapor and the inlet conditions are 600 kPa and 200 m/s. The refrigerant leaves the diffuser at 800 kPa and 40 °C. If the exit area is 70% larger than the inlet area of the diffuser, 1) Compute the velocity of refrigerant at the exit ii) If the diffuser is found to be losing heat at a rate of 10 kJ/s throughout the process, compute the mass flow rate of the refrigerant

b) A steam turbine that uses refrigerant 134-a as the working fluid is passed through a diffuser. The state of refrigerant before entering the diffuser is saturated vapor and the inlet conditions are 600 kPa and 200 m/s. The refrigerant leaves the diffuser at 800 kPa and 40 °C. If the exit area is 70% larger than the inlet area of the diffuser, 1) Compute the velocity of refrigerant at the exit ii) If the diffuser is found to be losing heat at a rate of 10 kJ/s throughout the process, compute the mass flow rate of the refrigerant

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter40: Typical Operating Conditions

Section: Chapter Questions

Problem 10RQ: The seasonal energy efficiency ratio (SEER) includes the energy used in the _____and _____cycles.

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Pls answer thank you! Steam enters the turbine at the rate of 2.5 kg/s with enthalpy of 3200 kj/kg and exhaust enthalpy of 1100 kj/kg . Steam is extracted from the turbine at the rate of 1 kg/s for heating purposes with enthalpy of 2750 kj/kg. What is the turbine work in KW.
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In a Geothermal field, saturated steam at 5 MPa is available flowing at a rate of 90,000 kg/hr per extraction well. There will be two 25 Megawatts of steam turbine-generator units to be installed. Exhaust is at 7 kPa and the over-all efficiency of the the steam generator is 80%. How many wells has to be operated to drive the 2 units of steam generators at fulI capacity considering steam enters the turbine at 4.8 MPa? Sketch the plant schematic diagram and the t-s diagram.