Podcast
Questions and Answers
What is the purpose of installing a recuperator in a gas turbine system?
What is the purpose of installing a recuperator in a gas turbine system?
- To increase the temperature of the compressed air leaving the compressor
- To preheat the air leaving the compressor by transferring waste heat (correct)
- To reduce the waste heat in the exhaust
- To cool down the combustion chamber
What is a key factor that enables a gas turbine system to benefit from a recuperator?
What is a key factor that enables a gas turbine system to benefit from a recuperator?
- A high level of Tt5 compared to Tt3 (correct)
- A low level of Tt5 compared to Tt3
- Equal temperatures at Tt5 and Tt3
- The absence of a combustion chamber
What is the primary function of a counter-flow heat exchanger in a gas turbine system?
What is the primary function of a counter-flow heat exchanger in a gas turbine system?
- To lower the temperature of the compressed air leaving the compressor
- To transfer waste heat to the compressed air (correct)
- To cool down the waste gas before leaving the system
- To increase the waste heat in the exhaust
Why can't the outlet temperature of the 'cold' gas in a heat exchanger reach the inlet temperature of the waste gas?
Why can't the outlet temperature of the 'cold' gas in a heat exchanger reach the inlet temperature of the waste gas?
In what way does installing a recuperator impact the workload of the combustion chamber in a gas turbine system?
In what way does installing a recuperator impact the workload of the combustion chamber in a gas turbine system?
What is a critical requirement for effective heat transfer in a heat exchanger within a gas turbine system?
What is a critical requirement for effective heat transfer in a heat exchanger within a gas turbine system?
What effect does using an inter-cooler have on the work input required for compression in gas turbines?
What effect does using an inter-cooler have on the work input required for compression in gas turbines?
How does the amount of heat transfer achievable in a recuperator change with decreasing compressor delivery air temperature?
How does the amount of heat transfer achievable in a recuperator change with decreasing compressor delivery air temperature?
What is the thermal efficiency when using a recuperator without a heat exchanger and with a total pressure ratio of 40?
What is the thermal efficiency when using a recuperator without a heat exchanger and with a total pressure ratio of 40?
How does the use of a recuperator affect the thermal efficiency of a cycle compared to when no heat exchanger is used?
How does the use of a recuperator affect the thermal efficiency of a cycle compared to when no heat exchanger is used?
In gas turbines, what impact does the total pressure ratio have on the thermal efficiency when using a recuperator?
In gas turbines, what impact does the total pressure ratio have on the thermal efficiency when using a recuperator?
What component can be used in gas turbines to reduce the work input required for compression?
What component can be used in gas turbines to reduce the work input required for compression?
What happens to the total enthalpy as the flow passes through the diffuser?
What happens to the total enthalpy as the flow passes through the diffuser?
In the context of turbomachinery, what is the Ram effect?
In the context of turbomachinery, what is the Ram effect?
Which component is responsible for increasing the total enthalpy and total pressure in the system?
Which component is responsible for increasing the total enthalpy and total pressure in the system?
What is the role of the diffuser in the turbomachinery system?
What is the role of the diffuser in the turbomachinery system?
How does forward speed of the aircraft affect the total enthalpy according to the text?
How does forward speed of the aircraft affect the total enthalpy according to the text?
What component adds to static quantities due to stagnation in the engine?
What component adds to static quantities due to stagnation in the engine?
Flashcards are hidden until you start studying
