What is the purpose of the reheat cycle?
- What is the purpose of the cycle?
- What is the purpose of regenerating?
- What is the Reheat Rankine cycle?
- Which of the following is true?
- What is the purpose of the steam turbine?
- Why do we use steam?
- A reheat cycle is what it is
- What do you think about the effect of reheat on the cycle efficiency?
- What is the reheat and regeneration cycle?
- The steam cycle is important
- What is the best cycle to use?
- What do you think about the effect of reheating on network and efficiency?
- What are the advantages of a reheat cycle?
- Which of the following has an advantage?
- Why should the pressure be adjusted?
- What is the use of reheated food?
- What do gas turbine reheating do?
- Why is it done in the gas turbine?
- What is the limit of reheating?
- Which is more efficient, the reheat cycle or the regeneration cycle?
- What is the effect on the network?
- What is the effect on output?
- How much is the reheat factor?
A reheating cycle is used to remove the steam at the final stages of the expansion process. Two turbines work in a series. Vapor from the boiler can be accepted at high pressure.
What is the purpose of the cycle?
The heat and rankine cycles are used to remove the water from the steam.
What is the purpose of regenerating?
The thermal efficiency of the plant was improved by the re heating of steam. Work output from the turbine is unaffected by regeneration thermal efficiency.
What is the Reheat Rankine cycle?
A Superheat turbine Rankine Cycle uses two to make it possible to operate the condenser at a low pressure and still maintain a high quality at the turbine effluent. Boiler heat is added at constant pressure. Boiler heat is added at constant pressure.
Which of the following is true?
8 Which of the following is true about a cycle? The high pressure turbine is called HP and the low pressure turbine is calledLP.
What is the purpose of the steam turbine?
Re heating increases the efficiency by raising the mean temperature of the heat addition process, by increasing the steam temperature at the turbine inlet, and by increasing the efficiency of the expansion process in the steam turbine.
Why do we use steam?
Work output is the work done by turbine and compressor. The steam rate decreases when work output increases. The heat supplied is less in this condition.
A reheat cycle is what it is
The expansion takes place in two turbines. The steam expands in the high-pressure turbine to some intermediate pressure, then passes back to the boiler, where it is reheated at constant pressure to a temperature that is usually equal to the original superheat temperature.
What do you think about the effect of reheat on the cycle efficiency?
In this cycle there is a partial expansion steam which has to be reheated and then return to the lower pressure section of the turbine. The turbine heat rate decreases as a result of heating.
What is the reheat and regeneration cycle?
The average temperature of heat reception increases when the steam power cycle is reheated. The invention applies reversible reheating in addition to the regular reheating and uses smaller temperature differences across feed water heaters than the regular cycle.
The steam cycle is important
There is a proposal to increase the efficiency of gas turbine engines. These cycles allow exhaust heat to be recovered for re-use within the gas turbine plant and are an attractive alternative to combined cycles for small and middle range industrial power plants.
What is the best cycle to use?
The steam power plant operates on the ideal cycle. At 8 MPa and 500C, steam enters the high-pressure turbine and leaves at 3 MPa. The steam expands to 20 kPa in the low-pressure turbine after being reheated at 500C.
What do you think about the effect of reheating on network and efficiency?
There is a fig. The ideal cycle is the reheat Rankine. The cycle efficiency can be improved by 4 to 5 percent by increasing the average temperature at which heat is transferred to the steam.
What are the advantages of a reheat cycle?
The advantages of using a reheat cycle are higher thermal efficiency, reduced feed water pump power, smaller condenser, smaller boiler, long life of the turbine and less handling of the fuel and firing requirement.
Which of the following has an advantage?
The main advantage of the reheat cycle is that it makes it possible to use higher boiler pressure. The mass flow rate of steam is decreased when the net-work output is increased.
Why should the pressure be adjusted?
The steam content at the turbine exhaust is increased by a high reheat pressure. The work produced increases in efficiency.
What is the use of reheated food?
The steam output from the first level of the steam turbine is reheated by Reheater. The heat from the boiler will be absorbed by the steam in the turbine. There are ways to improve the thermal efficiency of the cycle.
What do gas turbine reheating do?
Keeping the compressor work constant increases the work output of the turbine. The thermal efficiency of the plant decreases when the mean temperature of heat rejection is increased. The fuel consumption rate decreases for a given power output.
Why is it done in the gas turbine?
In a gas turbine, heating is applied in a way that increases the turbine work without increasing the compressor work or melting the turbine materials. A reheater can be applied to a gas turbine plant if it has a high pressure and low pressure turbine.
What is the limit of reheating?
The number of expansion in the turbine can be increased if we increase the number of reheating stages. It's not practical to have more than two stages of reheat.
Which is more efficient, the reheat cycle or the regeneration cycle?
Small increment in thermal efficiency leads to large investment return and more power production for a given set of operating parameters. The analysis shows that the regenerative cycle is more efficient than the reheat cycle.
What is the effect on the network?
The area under the curve increases in comparison to what it was before. Net Work output of the plant increases.
What is the effect on output?
The work of compression is reduced and the specific output of the plant is increased. Exhaust heat exchange can be used to fix the efficiency loss due to intercooling. Specific work output.
How much is the reheat factor?
The type and efficiency of the turbine affect the value of reheat factor. The order of the reheat factor is 1.1 to 1.5.