Description : The problematic pollutants in emission of coal based generating plants __________. (A) SO₂ (B) NOx (C) CO (D) All of the above
Answer :
The problematic pollutants in emission of coal based generating plants __________. (A) SO₂ (B) NOx (C) CO (D) All of the above
asked
May 8, 2018
by
anonymous
Description : In hydroelectric power plants (1) both operating and initial cost are high (2) both operating and initial cost are low (3) operating cost is low and initial cost is high (4) operating cost is high and initial cost is low
Answer :
In hydroelectric power plants operating cost is low and initial cost is high
asked
Apr 29, 2018
by
anonymous
Description : With a neat diagram explain medium head hydro-electric power plants.
Answer :
Diagram of medium head hydro-electric power plants: Explanation:- If head of water is between 30 and 100 m, the plant is called a medium-head plant. Potential energy of ... Francis turbines are normally used. Alternator required in these plants is of low speed and large in diameter.
asked
Jul 24, 2019
by
anonymous
Description : State advantages of Pulverized coal w.r.t. thermal power plant.
Answer :
Advantages of Pulverized coal w.r.t. thermal power plant. 1. Due to pulvarization amount of fuel required to produce same amount of heat reduces. 2. Time required for combution reduces ... of air and thorough mixing of air and fuel, very high-combustion temperatures can be attained.
asked
Aug 2, 2019
by
anonymous
Description : What is base load and peak load power plants?
Description : List any two types of fuels used in electrical power generation plants.
Answer :
Types of fuels used in electrical power generation plants: 1) Solid fuels: Coal, Biomass: Wood, Nuclear fuel: Uranium, Plutonium 2) Liquid fuels: Diesel, Petrol 3) Gaseous Fuels: Natural gas, Producer ... 2) Wood 3) Uranium 4) Plutonium 5) Diesel 6) Petrol 7) Natural gas 8) Producer gas
asked
Sep 7, 2018
by
anonymous
Description : Classify hydro-electric power plants according to water flow regulation and explain in brief.
Answer :
Classification of hydro-electric power plants according to water flow regulation of water flow:- 1. Large reservoir power plant 2. Run-off river (ROR) power plant with poundage 3. Run-off River ... depends upon rate of flow of water Initial cost is less Its purpose is to generate electricity.
asked
Sep 7, 2018
by
anonymous
Description : State why nuclear power plants are used as base load plants and diesel power plants as a peak load plant.
Answer :
1. Because of following points Nuclear power plant used as base load power plant:- 1. Nuclear power plants is very economical for producing bulk amount of electric power 2. Nuclear power plant is reliable ... . The plants can be put on load easily. 4. Diesel engines take less time to make OFF.
asked
Sep 8, 2018
by
anonymous
Description : State any two applications of diesel power plants.
Answer :
Applications of Diesel Power Plant: 1. It can be used as a standby (emergency) power plant to maintain continuity of supply. (Incase failure of main supply like hospital, Telephone exchange Radio ... . The diesel units can be used to supply the auxiliaries for starting the large thermal plants.
asked
Sep 8, 2018
by
anonymous
Description : For optimum generator scheduling for different power plants, the minimum fuel cost is obtained when
Answer :
For optimum generator scheduling for different power plants, the minimum fuel cost is obtained when The incremental fuel cost of each plant multiplied by the penalty factor is the same
asked
May 8, 2018
by
anonymous
Description : Write the purpose of coal and ash handling unit. Also write different activities that arc carried out in this unit.
Answer :
Purpose of coal and ash handling unit :- To transport coal from coal storage to power plant. A large quantity of ash about 10 to 30 % produced in furnace, the removal of ash from boiler furnace ... disposed off. Various methods of disposal of ash: Mechanical system. Pneumatic system.
asked
Sep 8, 2018
by
anonymous
Description : Name the turbines used in HPS. For the heads 30 M and less and 200 M and above.
Answer :
For the heads 30 M and less : 1. Multi jet pelton wheel 2. Cross flow turbine 3. Turgo turbine 4. Francis turbine 5. Overshot Water Wheel 6. Pitch back Water Wheel For the heads 200 M and above:- 1. Francis turbine 2. Pelton wheel turbine
asked
Aug 2, 2019
by
anonymous
Description : State the types of wind turbines.
Answer :
The types of Wind Turbines:- 1) Vertical axis wind turbine (VAWT) 2) Horizontal axis wind turbine (HAWT) i) Up wind HAWT ii) Down Wind HAWT OR The types of wind turbines:- 1. Small size wind turbine 2. Medium size wind turbine 3. Large size wind turbine
asked
Sep 7, 2018
by
anonymous
Description : The transfer of energy for reaction turbines is based on _______ A) Newton’s first law B) Newton’s second law C) Newton’s third law D) All the above
Answer :
The transfer of energy for reaction turbines is based on Newton’s third law
asked
Apr 29, 2018
by
anonymous
Description : Classify the hydro-electric plants according to the head and load basis.
Answer :
Classification the hydro-electric plants According to availability of Head of Water: 1. Very high head power plant 2. High head power plant 3. Medium head power plant 4. Low head power plant ... -electric plants According to Load basis: 1. Base load power plant 2. Peak load power plant
asked
Jul 24, 2019
by
anonymous
Answer :
Generators for peak load plants are usually designed for maximum efficiency at 50 to 75 percent full load.
asked
Mar 20, 2018
by
anonymous
Answer :
Most efficient plants are normally used as base load plants.
asked
Mar 20, 2018
by
anonymous
Answer :
In case of a steam engine an average coal consumption per km is nearly 28 to 30 kg.
asked
Mar 22, 2018
by
anonymous
Description : What is the largest power plant in the world?
Answer :
japam
asked
Mar 10, 2018
by
anonymous
Description : What are the criteria for selection of site for hydroelectric power plant?
Answer :
Following Factors to be kept while site selecting for Hydro power plant: 1. It should be located where high rain fall occurs. 2. A large catchments area must be available to store water. 3. It ... 12. Cost of land should be less. 13. Skilled and unskilled man power should be available nearby.
asked
Jul 24, 2019
by
anonymous
Description : What is the maximum value of power factor?
Answer :
1 is the maximum value of power factor.
asked
Mar 19, 2018
by
anonymous
Description : What is the most common type of power plant?
Answer :
Hydroelectric power plant.
asked
Mar 10, 2018
by
anonymous
Description : What are the types of power generation?
asked
Mar 10, 2018
by
anonymous
Description : What is the power generation?
asked
Mar 10, 2018
by
anonymous
Description : In hydel power station, the motion produced in turbines is due to (1) flow of water (2) burning of coal (3) burning of diesel (4) production of steam
Answer :
flow of water
Answer :
Because of following advantages concentrating type collector are used in solar power plant: - 1. Temperature: Temperature obtained is high because absorber area is less and collector/reflector area ... results: As tracking system is used better results are obtain than flat type collector.
asked
Jul 24, 2019
by
anonymous
Description : List the types of turbine used in hydro power plant.
Answer :
Following types of turbine used in hydro power plant: 1.Pelton wheel 2.Francis Turbine 3.Kaplan Turbine 4.Propeller Turbine
asked
Jul 24, 2019
by
anonymous
Description : In a thermal power plant, ash is collected in
Answer :
In a thermal power plant, ash is collected in hoppers or bunkers
asked
May 3, 2018
by
anonymous
Answer :
In a power plant if the maximum demand on the plant is equal to the plant capacity, then plant reserve capacity will be zero.
asked
Mar 20, 2018
by
anonymous
Answer :
In a distribution system, in order to improve power factor, the synchronous capacitors are installed at the receiving end.
asked
Mar 20, 2018
by
anonymous
Answer :
For high value of diversity factor, a power station of given installed capacity will be in a position to supply more number of consumers.
asked
Mar 20, 2018
by
anonymous
Description : State the purpose of surge tank and spill way in hydroelectric power station.
Answer :
Surge tank :- A surge tank is the small reservoir or tank. It is open at the top. It is installed near Vale house of turbine. It avoids water hammer effect when load on turbine reduces. (It ... ; during floods etc. In this way spill way avoids damage of dam due to excess pressure of water.
asked
Sep 8, 2018
by
anonymous
Answer :
The contacts of high voltage switches used in power system are submerged in oil. The main purpose of the oil is to extinguish the arc.
asked
Mar 20, 2018
by
anonymous
Description : Explain the function of different parts of a typical nuclear power plant with neat sketch.
Answer :
Functions of each part of Nuclear power plant:- 1) Nuclear Reactor: In nuclear reactor the fuel rod of U235 is placed through which tremendous amount of heat energy is ... is mechanically coupled with steam turbine. 8) Alternator: It converts mechanical energy into electrical energy.
asked
Jul 24, 2019
by
anonymous
Description : With a neat diagram explain pumped storage hydro power plant.
Answer :
Diagram of pumped storage hydro power plant: Explanation: In this power plant, generator is so designed that it Converts mechanical power into electrical power and also works as a ... helps in reducing a reserve capacity of PP as it provides additional power during peak load period.
asked
Jul 24, 2019
by
anonymous
Description : Draw a layout of a thermo-chemical based power plant.
Answer :
Layout of a thermo-chemical based power plant: In this process dry biomass fuels converted to produce gas ,liquid fuels or oil by thermo chemical conversion Thermo-Chemical conversion are of following ways:- 1. Direct combustion 2. Gasification 3. Pyrolysis
asked
Jul 24, 2019
by
anonymous
Description : With a neat diagram explain solar photovoltaic power plant.
Answer :
Diagram of solar photovoltaic power plant : Explanation: Solar power plant consists of following components: 1. Photovoltaic cell panel: Its function is to convert sunrays directly into DC ... . 5. Step-up transformer: It step-up input voltage to utilization voltage e.g. 230V
asked
Jul 24, 2019
by
anonymous
Answer :
Diagram explain solar power tower : All concentrating solar thermal power (STP) basic elements: Concentrator Receiver Transport-storage (a portion of the thermal energy ... with alternator which converts mechanical power to electrical energy Exhaust steam is condensate in condenser
asked
Jul 24, 2019
by
anonymous
Description : Power generation cost reduces as (A) Diversity factor increases and load factor decreases. (B) Diversity factor decreases and load factor increases. (C) Both diversity factor and load factor increase. (D) Both diversity factor and load factor decrease
Answer :
Power generation cost reduces as Both diversity factor and load factor increase.
asked
May 8, 2018
by
anonymous
Description : The overall efficiency of Thermal Power Plant is equal to _______________ . (A) Regenerative Cycle Efficiency (B) Renkine Cycle Efficiency (C) Carnot cycle efficiency (D) None of the above
Answer :
The overall efficiency of Thermal Power Plant is equal to Regenerative Cycle Efficiency.
asked
May 8, 2018
by
anonymous
Description : The rankine cycle efficiency of steam power plant is (1) 60-80% (3) 30-45% (2) 45-80% (4) 20-30%
Answer :
The rankine cycle efficiency of steam power plant is 30-45%
asked
Apr 29, 2018
by
anonymous
Answer :
An induction motor has relatively high power factor at near full load.
asked
Mar 20, 2018
by
anonymous
Answer :
For a consumer the most economical power factor is generally 0.95 lagging .
asked
Mar 20, 2018
by
anonymous
Answer :
The primary reason for low power factor is supply system is due to installation of induction motors.
asked
Mar 20, 2018
by
anonymous
Answer :
By use of thermocouple.
asked
Mar 20, 2018
by
anonymous
Answer :
Maximum demand on a power plant is the greatest of all "short time interval averaged" demand during a period.
asked
Mar 20, 2018
by
anonymous
Answer :
Annual operating expenditure of a power plant consists of fixed charges, semi-fixed charges, running charges.
asked
Mar 20, 2018
by
anonymous
Answer :
Power plant having maximum demand more than the installed rated capacity will have utilisation factor more than unity.
asked
Mar 20, 2018
by
anonymous
Answer :
Approximate estimation of power demand can be made by load survey method, statistical methods, mathematical method, economic parameters.
asked
Mar 20, 2018
by
anonymous