Question
In: Mechanical Engineering
Design a steam power cycle that can achieve a cycle thermal efficiency of at least 40%...
Design a steam power cycle that can achieve a cycle thermal efficiency of at least 40% under the conditions that all turbines have isentropic efficiencies of 80% and all pumps have isentropic efficiencies of 65%. Prepare an engineering report describing your design. Your design report must include, but is not limited to, the following:
1. Discussion of various cycles attempted to meet the goal as well as the positive and negative aspects of your design.
2. System figures and T-s diagrams with labeled states and temperature, pressure, enthalpy, and entropy information for your design.
3. Sample calculations.
Solutions
samet mamat answered 2 years agoRelated Solutions
a.) What is the thermal efficiency of a steam power plant operating on the Rankine cycle...
a.) What is the thermal efficiency of a steam power plant
operating on the Rankine cycle if saturated steam is supplied to
the turbine at 1000 psia, and the condenser is at 1 psia. Use a
turbine efficiency of 95% and a pump efficiency of 85%. Refer to
Chapter 9, Sections 10-11, as necessary.
b.) Determine the thermal efficiency if the steam is superheated to
1000 F, assuming all else equal.
1. The thermal efficiency of a Rankine power cycle may be improved by i. Superheating the...
1. The thermal efficiency of a Rankine power cycle may be
improved by i. Superheating the steam ii. Reheating the steam
between high and lower pressure sections of the turbine iii.
Regenerative Feedwater Heating iv. Insulating the turbine and
decreasing the entropy production during the expansion process v.
Incorporating a Rankine cycle power system as part of a
cogeneration system a. Items i), ii), and iv) only b. Items i),
iii), and v) only c. Items ii), iv) and v)...
1. The thermal efficiency of a Rankine power cycle may be improved by i. Superheating the...
1. The thermal efficiency of a Rankine power cycle may be
improved by i. Superheating the steam ii. Reheating the steam
between high and lower pressure sections of the turbine iii.
Regenerative Feedwater Heating iv. Insulating the turbine and
decreasing the entropy production during the expansion process v.
Incorporating a Rankine cycle power system as part of a
cogeneration system a. Items i), ii), and iv) only b. Items i),
iii), and v) only c. Items ii), iv) and v)...
A 400-MW steam power plant, which is cooled by a nearby river, has a thermal efficiency...
A 400-MW steam power plant, which is cooled by a nearby river,
has a thermal efficiency of 33 percent. (i) Sketch an appropriate
illustration for this heat engine clearly showing the heat source
and sink. (ii) Determine the rate of heat transfer to the river
water. (iii) Will the actual heat transfer rate be higher or lower
than this value? Why?
You are to required to design a steam power cycle that must operate in the parameter...
You are to required to design a steam power cycle that must
operate in the parameter space defined below. Final designs should
be as close to the desired operating conditions as possible. You
are to prepare an engineering report that clearly articulates your
design and its analysis and should include, but is not limited to
reporting on the following:
Thermodynamic principles and theory that describe the operation
of your design
Analysis, including calculations of you design and the final
cycle...
Design a steam power plant that works as an ideal Regenerative Rankine cycle with 2 closed...
Design a steam power plant that works as an ideal Regenerative
Rankine cycle with 2 closed feedwater heaters cascaded backwards by
selecting their extraction pressures to optimize cycle efficiency.
The available steam conditions at the exit of the boiler are 3 MPa
and 590 °C and the condenser pressure is 20 kPa. The steam flow
rate at the inlet of the turbine is 80 kg/s. A T-s diagram for the
cycle should be provided along with a table showing the...
A proposed steam power plant design consists of an ideal Rankine cycle with reheat and regeneration....
A proposed steam power plant design consists of an ideal Rankine
cycle with reheat and regeneration. Steam enters Turbine 1 at P1
and T1 at the rate of m1 and exits at P2. A fraction (y') of the
steam exiting Turbine 1 is diverted to an open feedwater heater
while the remainder is reheated to T3 before entering Turbine 2.
The condenser operates at P4. Saturated liquid exits the condenser
and is fed to Pump 1. The outlet of Pump...
Taichung thermal power station wants to change their steam generator with a new steam generator that...
Taichung thermal power station wants to change their steam
generator with a new steam generator that has a better efficiency.
The existing steam generator operating with Rankine cycle with
reheat and has a thermal efficiency of 30%. Taichung thermal power
station has been offered by Patron Company that supplies new steam
generators that are more environmentally friendly. The
specifications of the new steam generator are as follow:
maximum pressure is 15MPa,
minimum pressure is 10kPa
Temperature entering the turbine is...
Taichung thermal power station wants to change their steam generator with a new steam generator that...
Taichung thermal power station wants to change their steam
generator with a new steam generator that has a better efficiency.
The existing steam generator operating with Rankine cycle with
reheat and has a thermal efficiency of 30%. Taichung thermal power
station has been offered by Patron Company that supplies new steam
generators that are more environmentally friendly. The
specifications of the new steam generator are as follow: maximum
pressure is 15MPa, minimum pressure is 10kPa Temperature entering
the turbine is...
A steam generator is needed in the design of new mini-power plant. This generator can be...
A steam generator is needed in the design of new mini-power
plant. This generator can
be purchased with two different specification proposals, A or B.
Proposal A has life
of 15 years, a first cost of RM45,000 to buy with estimated an
annual saving of
RM3,500 per year and estimated for an annual operating &
maintenance cost of RM750
per year. A salvage value of RM10,700 and one-off overhaul in year
9 that cost RM
1,500. Proposal B has a...
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