Condenser pressure: Boiler pressure: Turbine inlet temperature: Compressed liquid phase: 2.5 kPa 3 MPa 700 °C Assume Incompressible Liquid (ICL) Problem #1: Assume the cycle uses only the basic, ideal Rankine cycle processes (no irreversibilities, no feedwater heaters, etc.) and perform the following tasks: a) draw a schematic for the power plant, b) draw the T-s diagram with state labels corresponding to your schematic, c) analyze the cycle and determine thermal efficiency. Problem #2: Using your cycle from problem #1, add an open feedwater heater to the cycle and repeat steps a-c from problem #1. Note that you will have to select (i.e. design) the pressure of your open feedwater heater and then determine the steam extraction ratio (v) required such that the feedwater heater exit condition is exactly saturated liquid. Problem #3: Repeat problem #2 but using a closed feedwater heater. Note that for CFWH the feedwater exit state is compressed liquid at the boiler pressure and saturation temperature of the extracted steam.

Condenser pressure: Boiler pressure: Turbine inlet temperature: Compressed liquid phase: 2.5 kPa 3 MPa 700 °C Assume Incompressible Liquid (ICL) Problem #1: Assume the cycle uses only the basic, ideal Rankine cycle processes (no irreversibilities, no feedwater heaters, etc.) and perform the following tasks: a) draw a schematic for the power plant, b) draw the T-s diagram with state labels corresponding to your schematic, c) analyze the cycle and determine thermal efficiency. Problem #2: Using your cycle from problem #1, add an open feedwater heater to the cycle and repeat steps a-c from problem #1. Note that you will have to select (i.e. design) the pressure of your open feedwater heater and then determine the steam extraction ratio (v) required such that the feedwater heater exit condition is exactly saturated liquid. Problem #3: Repeat problem #2 but using a closed feedwater heater. Note that for CFWH the feedwater exit state is compressed liquid at the boiler pressure and saturation temperature of the extracted steam.

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

Chapter45: Domestic Refrigerators And Freezers

Section: Chapter Questions

Problem 9RQ: The defrost cycle in a domestic refrigerator may be terminated by two methods: ___and___.

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