Quiz
power prep quiz 12
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Perguntas do quiz (15)
1Cogeneration is
- Atwo methods to produce electrical power energy from a single fuel source
- Busing one energy source to produce two or more forms of output energy
- Ccombining two prime movers such as a gas turbine and diesel generator in one plant system
- Dall needs are met by one energy source such as power generation, heating, air-conditioning
- Ehaving two or more separate electricity generators in parallel on the same grid
2A combined steam and gas turbine arrangement can be termed:
- Aan ideal system
- Ba cogeneration system
- Ca once through system
- Dideal relative to system efficiency
- Ea high capacity system
3A cogeneration plant could consist of:
1. diesel engine with attached waste heat boiler
2. gas turbine using a boiler as the combustor
3. steam turbine exhausting to a process steam header
4. gas boiler using the exhaust gas from a gas turbine as combustion air- A1,2
- B1,2,3
- C2,3,4
- D1,3,4
- E1,2,3,4
4The main advantage of cogeneration is to
- Areduce total energy costs
- Breduce the number of operators required to operate the plant
- Cquicker start up times as compared to conventional coal fired power plants
- Dless environmental impact
- Eall of the above
5Topping cycle cogeneration is where
- Athe fuel supplied is first utilized for a process due to the high thermal energy and the waste heat is utilized in a HRSG
- Bthe energy supplied to the electrical power grid is only operated during peak demand periods
- Cthe fuel supplied will first produce electrical power and the heat energy liberated is the byproduct
- Dall of the above
- Enone of the above
6Control strategies in a cogeneration system are dependant upon
- Atype of available fuel
- Bbase load operation
- Cpeak load demands
- Dtype of facility
- Eenvironmental impact
7Control strategies used with cogeneration systems are:
1. thermal load
2. electrical load
3. environmental impact
4. duct burner and diverter
5. process demand
6. thermal efficiency- A1,2,3
- B4,5,6
- C1,2,4
- D2,4,5
- E1,2,3,4,5,6
8Cogeneration systems may include:
1. gas turbines
2. internal combustion engines
3. waste heat
4. steam turbines- A1,2
- B3,4
- C1,2,3
- D2,3,4
- E1,2,3,4
9The advantages of cogeneration at both the micro and macro levels include
1. wide range of configurations are possible
2. on site electricity
3. quick start-up times
4. pollution free fuel- A1,2
- B3,4
- C1,2,3
- D2,3,4
- E1,2,3,4
10The pollutants emitted form a cogeneration plant may include:
1. carbon monoxide
2. carbon dioxide
3. NOX
4. water
5. ammonia
6. sulphur dioxide- A1,2,3
- B4,5,6
- C1,2,3,6
- D2,3,6
- E1,2,3,4,5,6
11A cogeneration system that utilizes an internal combustion engine is best suited for:
- Alow electrical loads at varying ambient air conditions
- Bareas with little water supplies for cooling purposes
- Cremote locations
- Dpeak demand locations
- Eany of the above
12A cogeneration system that utilizes an internal combustion engine extracts heat from the:
1. exhaust gases
2. lubrication oil system
3. engine water jackets
4. fuel system- A1,2,3
- B2,3,4
- C1,3,4
- D1,2,4
- E1,2,3,4
13Duct burner firing in an HRSG is utilized to:
1. produce steam when the gas turbine is off-line
2. increase steam production
3. control superheated steam temperature requirements
4. meet the process steam temperature requirements- A1,2,3
- B2,3,4
- C1,3,4
- D1,2,4
- E1,2,3,4
14Selective catalytic reduction refers to:
- Abreaking down the fuels constituents to burn cleaner using a catalyst
- Bdecreasing the flue gas temperature by running it through a scrubber
- Cgiving the flue gas an ionic charge for particulate removal
- Dlowering the total carbon dioxide emissions through a catalyst
- Elowering the NOX loading by using a catalyst
15To lower NOX production selective catalytic reduction may be accomplished using:
- Aammonia
- Bhydrogen
- Coxygen
- Dmethane
- Ebiofuels
Informações
- Descrição
- power engineering 3b2 Quiz sobre power prep quiz 12, criado por TRAVIS CANNING em 28-02-2016.
- Autor
- TRAVIS CANNING
- Idioma
- English
- Visualizações
- 16
- Etiquetas
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