Explain the difference between Superheat, Regeneration, and Reheat attributes in a Rankine power cycle.
- Explain the difference between Superheat, Regeneration, and Reheat attributes in a Rankine power cycle.
Homework Answers
Add Answer to:
Explain the difference between Superheat, Regeneration, and
Reheat attributes in a Rankine power cycle.
An internally reversible Rankine cycle with both reheat and regeneration operates between 400OC and 3.8 MPa...
An internally reversible Rankine cycle with both reheat and regeneration operates between 400OC and 3.8 MPa and 50OC. The first stage turbine exhausts 700 kPa where part part of the steam is extracted for use in an open feed-water heater. The remainder is heated to 500 OC before entering the second stage. Saturated steam leaves the feedwater heater. Compute the cycle efficiency. USE THE T-s CHART TO FIND THE ENTHALPIES. Neglect pump work.
Water is the working fluid in a modified Rankine cycle with superheat and reheat. Water as...
Water is the working fluid in a modified Rankine cycle with superheat and reheat. Water as superheated vapor enters the high-pressure stage turbine at 60 bar and 440 C and leaves at 5 bar as liquid-vapor mixture with a quality of xa-0.98. It is then reheated to 400 °C at the same pressure of 5 bar before entering the second stage turbine where it expands to a pressure of 0.1 bar and a mixture quality of x0.96. The condenser pressure...
A steam power plant operates on an ideal reheat Rankine cycle between the pressure limits of...
A steam power plant operates on an ideal reheat Rankine cycle between the pressure limits of 5 MPa and 100 kPa. The temperature of the steam att the turbine is 500 C degree and the mass flow rate of steam through the cycle is 35 kg/s. a) Determine the thermal efficiency of the cycle. b) determine the net power output of the power plant ( Assume both the turbine and the pump have isentropic efficiency of 100%). c) Draw the...
Design a steam power plant of 1 MW using a rankine cycle. Describe the rankine cycle...
Design a steam power plant of 1 MW using a rankine cycle. Describe the rankine cycle with additional modifications e.g reheat, regeneration (feedwater) to improve efficient and it's T-S diagram. In your analysis, write down state equations and consider the losses associated with each component to calculate overall thermal efficiency. Also perform a cost analysis for all the equipment for a period of 10 years.
A steam plant operates on a reheat Rankine cycle and has a net power output of...
A steam plant operates on a reheat Rankine cycle and has a net power output of 80MW. Steam enters the high pressure turbine at 10 MPa and 500 °C and the low pressure turbine at 1 MPa and 500 °C. Steam leaves the condenser as a saturated liquid at a pressure of 10kPa. The efficiency of the turbine is 80% and the efficiency of the pump is 95%. Determine the thermal efficiency of the cycle. Rankine Cycle with Reheat
Tor steam power prants 4 marks D) A steam power plant is to be designed using the Rankine cycle with superheat. The...
Tor steam power prants 4 marks D) A steam power plant is to be designed using the Rankine cycle with superheat. The steam must enter; the turbine at pressure (P) and temperature (T), and the turbine steam exit pressure must be 0.05 bars. In order to produce 12 MW, a steam mass floW rate of 8.91 kg/s is to be used and the dryness fraction at turbine exit must be 0.9. Assuming the Rankine cycle to be ideal and neglecting...
Which of the below best describes the reason the reheat Rankine cycle can produce higher thermal...
Which of the below best describes the reason the reheat Rankine cycle can produce higher thermal efficiencies than the simple Rankine cycle? (circle best answer) Select one: a. The reheat Rakine cycle has two turbines, so more power can be produced. b. The heat addition in the reheat Rankine cycle occurs at a lower average temperature. c. The reheat Rankine cycle has a reheater section in the boiler, so more heat can be added while burning the same amount of...
Steam power plant using the reheat Rankine cycle
A steam power plant operates using the reheat Rankine cycle. Steam enters the high pressure turbine at 12.5 MPa and 550ºC at a rate of 7.7 kg/s and leaves at 2MPa. Steam is then reheated at a constant pressure to 450ºC before it expands in the low pressure turbine. The isentropic efficiencies of the turbine and the pumpare 85% and 90%, respectively. Steam leaves the condenser as a saturated liquid. If the moisture content of the steam at the exit...
A Rankine power cycle with reheat uses water as the working fluid. The inlet conditions of...
A Rankine power cycle with reheat uses water as the working fluid. The inlet conditions of the first stage turbine are 14MPa and 600°C. All the turbines are known to have isentropic efficiency of 85%, however the pump is assumed as an isentropic pump. If the maximum temperature is kept at 600°C and the condenser pressure is 6 kPa, by constructing a suitable plot, show that having more than 2 reheat stages is not practical. (Hint: Take at least three...
A steam power plant operates on the Rankine cycle modified to include superheat. The steam leaves...
A steam power plant operates on the Rankine cycle modified to include superheat. The steam leaves the superheater at a pressure of 40 bar and a temperature of 500oC. After expansion in the turbine, which has an isentropic efficiency of 82%, the steam exhausts into the condenser at a pressure of 0.2 bar. Neglecting feed pump work calculate :- 1. The Thermal Efficiency of the plant. 2. The specific steam consumption. 3. The required mass flow rate of steam if...
Water is the working fluid in a modified Rankine cycle with superheat and reheat. Water as superheated vapor enters the high-pressure stage turbine at 60 bar and 440 C and leaves at 5 bar as liquid-vapor mixture with a quality of xa-0.98. It is then reheated to 400 °C at the same pressure of 5 bar before entering the second stage turbine where it expands to a pressure of 0.1 bar and a mixture quality of x0.96. The condenser pressure...
A steam plant operates on a reheat Rankine cycle and has a net power output of 80MW. Steam enters the high pressure turbine at 10 MPa and 500 °C and the low pressure turbine at 1 MPa and 500 °C. Steam leaves the condenser as a saturated liquid at a pressure of 10kPa. The efficiency of the turbine is 80% and the efficiency of the pump is 95%. Determine the thermal efficiency of the cycle. Rankine Cycle with Reheat
Tor steam power prants 4 marks D) A steam power plant is to be designed using the Rankine cycle with superheat. The steam must enter; the turbine at pressure (P) and temperature (T), and the turbine steam exit pressure must be 0.05 bars. In order to produce 12 MW, a steam mass floW rate of 8.91 kg/s is to be used and the dryness fraction at turbine exit must be 0.9. Assuming the Rankine cycle to be ideal and neglecting...
Which of the below best describes the reason the reheat Rankine cycle can produce higher thermal efficiencies than the simple Rankine cycle? (circle best answer) Select one: a. The reheat Rakine cycle has two turbines, so more power can be produced. b. The heat addition in the reheat Rankine cycle occurs at a lower average temperature. c. The reheat Rankine cycle has a reheater section in the boiler, so more heat can be added while burning the same amount of...
A Rankine power cycle with reheat uses water as the working fluid. The inlet conditions of the first stage turbine are 14MPa and 600°C. All the turbines are known to have isentropic efficiency of 85%, however the pump is assumed as an isentropic pump. If the maximum temperature is kept at 600°C and the condenser pressure is 6 kPa, by constructing a suitable plot, show that having more than 2 reheat stages is not practical. (Hint: Take at least three...
Most questions answered within 3 hours.
-
-Match the charge on phenylalanine at different pH:
1) pH=1
2) physiological pH
3) pH=10
a)...
asked 18 minutes ago -
Suppose the space shuttle is in orbit 500 km from the Earth's
surface, and circles the...
asked 14 minutes ago -
Heroux Corporation has two manufacturing departments--Forming
and Customizing. The company used the following data at the...
asked 11 minutes ago -
Select the correct statement(s):
1)Exceptions are compiler errors
2) Exceptions can be thrown from a method....
asked 15 minutes ago -
Please answer the questions from the field of genetics, in
words, and in detail.
1. What...
asked 18 minutes ago -
Assume that Earth's orbit around the Sun is a perfect circle.
Earth's inertia is 5.97×1024kg, the...
asked 33 minutes ago -
Alliance Company's budgets production of 28,000 units in January
and 32,000 units in February. Each finished...
asked 31 minutes ago -
You want to estimate the population mean by taking a sample and
constructing a 80% confidence...
asked 39 minutes ago -
You are working for a company that produces clones of famous
name wireless radio nannies. Your...
asked 42 minutes ago -
Human energetic status affects which of the following aspects of
women's reproductive physiology?
Question options:
hormonal...
asked 42 minutes ago -
The following mechanism has been proposed for the gas-phase
reaction of chloroform (CHCl3) and chlorine.
Cl2...
asked 44 minutes ago -
According to the ideal gas law, a 0.9100 mol sample of oxygen
gas in a 1.139...
asked 55 minutes ago