Consider the cycle in the diagram (very similar to the Rankine Cycle) using water as the working fluid. B A D Process A-B: Saturated liquid water is pumped from low to high pressure in iso-entropic process. (Also assume an adiabatic process.) Process B-C: The high pressure liquid enters a boiler where it is heated at constant pressure process by an external heat source to a saturated vapor. Process C-D: The saturated vapor expands through a turbine, generating power. Assume an adiabatic process and neglect kinetic energy and potent energy changes. Process D-A: The vapor then enters a condenser where it is condensed at a constant pressure process back to its original state. The boiler operates at 5 MPa (points B & C) and the condenser operates at100 kPa (points A & D). Assume a mass flow r of 1 kg/s. a) Make a table of the temperature, pressure, volume, internal energy, enthalpy, entropy and quality factor (T, P, V, U, H & x) at the start of each process. b) Make a table of the change in internal energy, heat flow, work done, change in enthalpy, and change in entropy (AU

Consider the cycle in the diagram (very similar to the Rankine Cycle) using water as the working fluid. B A D Process A-B: Saturated liquid water is pumped from low to high pressure in iso-entropic process. (Also assume an adiabatic process.) Process B-C: The high pressure liquid enters a boiler where it is heated at constant pressure process by an external heat source to a saturated vapor. Process C-D: The saturated vapor expands through a turbine, generating power. Assume an adiabatic process and neglect kinetic energy and potent energy changes. Process D-A: The vapor then enters a condenser where it is condensed at a constant pressure process back to its original state. The boiler operates at 5 MPa (points B & C) and the condenser operates at100 kPa (points A & D). Assume a mass flow r of 1 kg/s. a) Make a table of the temperature, pressure, volume, internal energy, enthalpy, entropy and quality factor (T, P, V, U, H & x) at the start of each process. b) Make a table of the change in internal energy, heat flow, work done, change in enthalpy, and change in entropy (AU

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

_Consider the cycle in the diagram (very similar to the Rankine Cycle) using water as the working fluid.
D
Process A-B: Saturated liquid water is pumped from low to high pressure in an
iso-entropic process. (Also assume an adiabatic process.)
Process B-C: The high pressure liquid enters a boiler where it is heated at
constant pressure process by an external heat source to a saturated vapor.
Process C-D: The saturated vapor expands through a turbine, generating
power. Assume an adiabatic process and neglect kinetic energy and potential
energy changes.
Process D-A: The vapor then enters a condenser where it is condensed at a
constant pressure process back to its original state.
The boiler operates at 5 MPa (points B & C) and the condenser operates at 100 kPa (points A & D). Assume a mass flow rate
of 1 kg/s.
a) Make a table of the temperature, pressure, volume, internal energy, enthalpy, entropy and quality factor (T, P, V, U, H, S
& x) at the start of each process.
b) Make a table of the change in internal energy, heat flow, work done, change in enthalpy, and change in entropy (AU, Q,
W, AH, AS) per second during each leg of the cycle. Indicate as is appropriate on the diagram.
c) Calculate the thermal efficiency of the cycle.

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T B A D Consider the cycle in the diagram (very similar to the Rankine Cycle) using water as the working fluid. Process A-B: A saturated mixture of water is pumped from low pressure to a high pressure saturated liquid in an iso-entropic (and adiabatic) process. Process B-C: The high pressure saturated liquid enters a boiler where it is heated at constant pressure process by an external heat source to a super-heated vapor. Process C-D: The super-heated vapor goes through a turbine, generating power exiting as a saturated vapor. Assume an iso-entropic (and adiabatic) process and neglect kinetic energy and potential energy changes. Process D-A: The saturated vapor then enters a condenser where it is condensed at a constant pressure process back to its original state. The boiler operates at 10 MPa (points B & C) and the condenser operates at 100 kPa (points A & D). Assume a mass flow rate of 1 kg/s. a) Make a table of the temperature, pressure, volume, internal energy, enthalpy, entropy…
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