Question
In: Physics
The mass flow rate of steam through an ideal Rankine turbine ( with an isentropic turbine...
The mass flow rate of steam through an ideal Rankine turbine ( with an isentropic turbine and an isentropic pump) is 30lbm/s. The water and or steam is at a pressure of 1000 psia throughout the boiler and superheater and exits the superheater at a temperature of 600 F. The condenser is at a pressure of 2 psia, and the water exits the condenser as a saturated liquid. Calculate the following.
(a) the power output of the turbine
(b) the overall thermal efficiency of the cycle
(c) The Carnot efficiency of the cycle based on the boiler and condenser temperatures
Solutions
genius_generous answered 6 months agoRelated Solutions
A steam power plant operates on the simple ideal rankine cycle. the steam enters the turbine...
A
steam power plant operates on the simple ideal rankine cycle. the
steam enters the turbine at 4 MPa and 500 C and leaves it at 50 kPa
and 150 C. the water leaves the condenser as a saturated liquid and
is subsequently displaced to the boiler by means of a pump at a
temperature of 85 C, which is the isentrophic efficiency of the
turbine?
Consider a steam power plant operating on the simple ideal Rankine cycle. Steam enters the turbine...
Consider a steam power plant operating on the simple ideal
Rankine cycle. Steam enters the turbine at 15 MPa and 600°C. The
steam condenses in the condenser at 10 kPa. Use the EES software to
study the effects of the following cases on the cycle performance
and to sketch the T-s diagram for each case:
Plot the variation of the cycle thermal efficiency with the
turbine isentropic efficiency. Take the isentropic efficiency of
the turbine in the range 70% to...
Consider a steam power plant operating on the simple ideal Rankine cycle. Steam enters the turbine...
Consider a steam power plant operating on the simple ideal
Rankine cycle. Steam enters the turbine at 15 MPa and 600°C. The
steam condenses in the condenser at 10 kPa. Use the EES software to
study the effects of the following cases on the cycle performance
and to sketch the T-s diagram for each case:
#Plot the variation of the cycle thermal efficiency with the
turbine isentropic efficiency. Take the isentropic efficiency of
the turbine in the range 70% to...
In an ideal Rankine cycle with reheat, superheated steam vapor enters the turbine at 10 MPa...
In an ideal Rankine cycle with reheat, superheated steam vapor
enters the turbine at 10 MPa and
480 °C, while the condenser pressure is 6 kPa. Steam expands
through the first-stage turbine to
0.7 MPa and then is reheated to 480 °C
a) Calculate the total heat addition, net work of the cycle, heat
extraction through condenser,
and thermal efficiency of this ideal Rankine cycle with reheat.
[25]
b) Calculate the same quantities assuming that the pump and each
turbine...
Consider steam in an ideal Rankine cycle. The saturated vapor enters the turbine at 8.0 MPa.
Consider steam in an ideal Rankine cycle. The saturated vapor enters the turbine at 8.0 MPa. Saturated liquid exits the condenser at P = 0.008 MPa. The net power output of the cycle is 100 MW.
determine the thermal efficiency of the cycle
In an ideal Rankine cycle with reheat, superheated steam vapor enters the turbine at 10 MPa...
In an ideal Rankine cycle with reheat, superheated steam vapor
enters the turbine at 10 MPa and
480 °C, while the condenser pressure is 6 kPa. Steam expands
through the first-stage turbine to
0.7 MPa and then is reheated to 480 °C
a) For a pressure of 7 bar right after the first stage turbine in
the ideal Rankine cycle, create
two plots: thermal efficiency as a function of the reheat
temperature from 200 °C to
500 °C; and the...
In an ideal Rankine cycle with reheat, superheated steam vapor enters the turbine at 10 MPa...
In an ideal Rankine cycle with reheat, superheated steam vapor
enters the turbine at 10 MPa and
480 °C, while the condenser pressure is 6 kPa. Steam expands
through the first-stage turbine to
0.7 MPa and then is reheated to 480 °C.
Calculate the total heat addition, net work of the cycle, heat
extraction through condenser,
and thermal efficiency of this ideal Rankine cycle with
reheat
An ideal Rankine cycle with regenerative system. Steam enters the turbine at 6000 kPa and 450oC...
An ideal Rankine cycle with regenerative system. Steam enters
the turbine at 6000 kPa and 450oC and is condensed in the condenser
at 20 kPa. It the steam is extracted from the turbine at 400 kPa to
heat
the feedwater in an open feedwater heater and the water leaves
the feedwater heater as a saturated liquid.
Find the rate of heat added in the boiler?
Find the rate of heat rejected in the condenser?
Determine the network output per kilogram...
A mass flow rate of 2 kg/s of steam is expanded in an adiabatic turbine with...
A mass flow rate of 2 kg/s of steam is expanded in an adiabatic
turbine with an isentropic efficiency of 0.92. The steam enters at
3 MPa and 400 C and leaves at 30 kPa. Determine how much power the
turbine is producing. Express your result in kW.
(Sol: 1649 kW)
A steam power plant operates on a practical Rankine Cycle. The steam enters the turbine at...
A steam power plant operates on a practical Rankine Cycle. The
steam enters the turbine at 3 MPa and “648” K and is condensed in
the condenser at a pressure of 46 kPa. You are assigned on a
project to improve the thermal efficiency of this plant. a) Draw
the schematic of the plant and determine the thermal efficiency of
the practical cycle assuming that the efficiencies of pump and
turbine are 0.75 and 0.7, respectively. ( b) Draw a...
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