Podcast
Questions and Answers
What makes gas turbines ideal for standby duties such as fire pumps and emergency electricity generators?
What makes gas turbines ideal for standby duties such as fire pumps and emergency electricity generators?
- They require slow and elaborate preparations before starting
- They have lower NOX emissions than steam turbines
- They have lower mechanical/thermal efficiency
- They can be started almost instantaneously (correct)
What is a major drawback of gas turbines in terms of the types of fuel they can use?
What is a major drawback of gas turbines in terms of the types of fuel they can use?
- They can only use solid fuels
- They have high noise levels
- They are limited to clean, liquid, or gaseous fuels (correct)
- They require special baffle systems for exhaust
Why do gas turbines have low mechanical/thermal efficiency compared to other power plants?
Why do gas turbines have low mechanical/thermal efficiency compared to other power plants?
- Because they have high NOX emissions
- Because they have higher compression ratio
- Because they are affected by ambient air pressure and temperature (correct)
- Because they require special baffle systems for exhaust
How do gas turbines differ from steam turbines in terms of startup and loading?
How do gas turbines differ from steam turbines in terms of startup and loading?
Which technological advance has increased gas turbine thermal efficiency according to the text?
Which technological advance has increased gas turbine thermal efficiency according to the text?
What environmental concern is associated with gas turbines according to the text?
What environmental concern is associated with gas turbines according to the text?
Why are regenerators added to gas turbines?
Why are regenerators added to gas turbines?
What makes gas turbines ideal for supplying the mechanical drive for electrical generators operated only to supply peak electrical loads?
What makes gas turbines ideal for supplying the mechanical drive for electrical generators operated only to supply peak electrical loads?
What is one advantage of gas turbines compared to steam plants?
What is one advantage of gas turbines compared to steam plants?
Why do gas turbine plants have lower installed cost compared to steam plants?
Why do gas turbine plants have lower installed cost compared to steam plants?
What contributes to the lower maintenance and operating cost of gas turbines?
What contributes to the lower maintenance and operating cost of gas turbines?
Why can gas turbines operate economically with a closed circulating water system?
Why can gas turbines operate economically with a closed circulating water system?
What characteristic distinguishes gas turbines from other types of prime movers?
What characteristic distinguishes gas turbines from other types of prime movers?
Why are gas turbine plants less mechanically complex than steam plants?
Why are gas turbine plants less mechanically complex than steam plants?
What contributes to the rapid startup and loading of gas turbines?
What contributes to the rapid startup and loading of gas turbines?
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