State the function of cooling tower and condenser in thermal power station.

1 Answer

Answer :

1. Condenser:   Function of condenser is to convert exhaust steam again into water by reducing its temperature with the help of cold water. Also it reduces back pressure of steam turbine

2 .Cooling tower : The function of cooling tower is to reduce the temperature of water coming from condenser.

Related questions

Description : Draw and explain the function of cooling tower in TPS.

Last Answer : Cooling tower in TPS: The function of cooling tower is to reduce the temperature of water coming from condenser. Water is circulated from the basin of the cooling ... cooling Tower temperature of water is reduced either by natural or forced or induced draught method or combine

Description : State any four factors governing Selection of site for thermal power station. 

Last Answer : Following Factors are to be considered:- 1. It should locate near coal mine. 2. Sufficient quantity of water should be available. 3. Sufficient large space should be available. 4. It should be located ... laws of the land and the town planning. 14. The interests of national defense must be served.

Description : Classify condensers used in thermal power station. Explain each type in brief. 

Last Answer : Types of condenser: Classification: 1. Jet Condenser (Mixing Type) 2. Surface condenser (non Mixing type)  Explanation:-   1. Jet Condenser (Mixing Type) In Jet condenser the steam ... there in no direct contact between the steam and cooling water. This condensate is reused in boiler. 

Description : "Efficiency of thermal power station is low". — Justify. 

Last Answer : Justification: Efficiency of thermal power station is low":- Overall efficiency of T.P.P depends upon efficiency of boiler, turbine and alternator. The heat produced due to combustion of coal ... losses in thermal power plant is 71%, So efficiency of thermal power plant is less about 29% 

Description : State the function of super heater of a thermal power plant. 

Last Answer : Function of Super heater: -  Its function is to increase the temperature of steam by absorbing heat from exhausted hot flue gases.

Description : Can a synchronous condenser improve power factor?

Last Answer : Yes, synchronous condenser can improve power factor.

Last 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

Description : State the function of following components of a nuclear power station: i) Moderator ii) Shielding iii) Control rod iv) Coolant 

Last Answer : i) Function of Moderator :- Moderator is to moderate or reduce the speed of fast neutron to help the fission process.  ii) Function of sheilding : Shielding is to protect environment, ... from reactor core and transfer it in heat exchanger for producing steam at high pressure and temperature. 

Description : State advantages of Pulverized coal w.r.t. thermal power plant. 

Last 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.

Description : Write any four advantages and four disadvantages of thermal power plant.

Last Answer : .embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }

Description : Explain ash disposal and dust collection in a thermal power plant.

Last Answer : Ash disposal:-  Various methods of disposal of ash are:  Mechanical handling system.  Pneumatic system. Hydraulic system  Steam jet system  Commonly used ash handling ... be done either manually or automatically.  This removed fly ash is collected in separate container

Description : The unit heat rate characteristic of a thermal power unit shows :  (A) Heat input per kWh of output versus the megawatt output of unit  (B) Heat input per kW of output versus the megawatt output ... hour output of unit  (D) Heat input per kW of output versus the megawatt hour output of unit

Last Answer : The unit heat rate characteristic of a thermal power unit shows : Heat input per kWh of output versus the megawatt output of unit 

Description : State the types of radioactive waste generated in a nuclear power station. Explain the methods employed for their disposal.

Last Answer : Types of radioactive waste: The waste produced in nuclear power plant is in the form of solid, liquid & gases, 1. Solid Waste Disposal:-  Solid wastes removed from the reactor are very ... are measured. If it is safe then released to atmosphere at high level through large height chimney.

Description : List and state any four limitations of inter connected power station.

Last Answer : Limitations of inter connected power station:- 1) Initial cost of infrastructure of transmission line increases as length increases. 2) Interconnection required more automation which increases cost on ... capacity. But in absence of surplus power merits of interconnection cannot be obtain.

Description : State the functions of fuel system and exhaust system of a diesel power station.

Last Answer : Fuel system: It supplies fuel to engine for combustion purpose. It consists of Fuel Pump: - It supplies fuel to engine for combustion purpose. Strainer: - Are provided to remove suspended impurities and ... most of the noise. Chimney:- To exhaust gases in the atmosphere as high as possible. 

Description : State the purpose of surge tank and spill way in hydroelectric power station.

Last 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.

Description : Compare the Nuclear power station with Hydro power station. 

Last Answer : SR. No.  Points Nuclear Power plant  Hydro Power station  1 Site/ Location Where there is ample supply of water is available, away from thickly populated areas to avoid radioactive ... Field Application As base load  Used as base load during as well as peak load 

Description : Explain the working of Hydro power station with schematic layout. 

Last Answer : Working of Hydro- Electric Power Plant: Water stored at high level by constructing dam across river. This stored water has potential energy. This stored water is passed to run the water ... energy and Alternator is coupled to water turbine which converts mechanical energy into electrical energy. 

Description : Applications of Diesel power station

Last Answer : Applications of Diesel Power Station:  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 ... 10. Diesel plants are widely used for generating power ranging from 100 to 5,000 H.P. 

Description : List out main components of Diesel power station. 

Last Answer : Main components of Diesel power station: 1) Diesel Engine 2) Engine Air intake system 3) Engine Fuel System 4) Engine Exhaust system 5) Engine cooling system 6) Engine Lubricating system 7) Engine Starting system 8) Diesel Engine Generator (Alternator) 

Description : "Hydro electric power station are not perennial power station". Justify.

Last Answer : Justification: The water utilized by the hydro power plants comes mostly from storage dams/reservoirs which get filled up during the monsoon rainy season. Such reservoirs are utilized for supplying ... are important. Hence "Hydro electric power stations are not perennial power station" 

Description : Write down any two advantages of nuclear power station.

Last Answer : Advantages of nuclear power station :-  1) Fuel required: Fuel requirment of Nuclear Power Plant is less than Thermal Power Plant. So it reduces transportation cost of fuel and space required for fuel storage ... By use of nuclear fuel.,it saves the other fossile fuels like-coal, gas, oil, etc.

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

Last Answer : The overall efficiency of Thermal Power Plant is equal to Regenerative Cycle Efficiency. 

Description : In a thermal power plant, ash is collected in

Last Answer : In a thermal power plant, ash is collected in hoppers or bunkers

Description : How Do I Build a Low Power FM Radio Station?

Last Answer : How Do I Build a Low Power FM Radio Station? A low power FM radio station offers individuals or small groups the ability to go on the air and communicate with the general public using FM radio ... FCC or your local government to determine which, if any FM frequencies you are allowed to transmit on.

Description : Power station having Load factor = 70%, capacity factor = 50%, used factor = 60%, maximum demand = 20MW then annual energy production is  (1) 122.8 GWh (2) 198.55 GWh (3) 128.2 GWh (4) 188.82 GWh

Last Answer : Power station having Load factor = 70%, capacity factor = 50%, used factor = 60%, maximum demand = 20MW then annual energy production is 122.8 GWh

Last 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.

Last Answer : Load factor of a power station is generally less than unity.

Last Answer : Load factor of a power station is defined as average load/maximum demand.

Last Answer : For the protection of power station buildings against direct strokes the requirements are interception, conduction and dissipation.

Description : operating principle of condenser type microphone with neat diagram.

Last Answer : Principle: When sound pressure moves the diapharam in, the capacitance increases, and when it moves out, the capacitance decreases. The change in capacitance results in change in out put voltage of microphone. ... in volts.  Q= charge in coulombs  C= capacitance in farad Diagram: 

Description : Explain working of superheater and condenser. 

Last Answer : Working of Super heater:  Super heater consist of group of tubes. Tubes are heated by absorbing temperature of flue gases passed over it . Superheated steam' is meant that steam which ... condensate is reused in boiler. This type of condenser is used for high capacity thermal power plant. 

Description : Write function of control rods in nuclear power plant.

Last Answer : Function of control rods in nuclear power plant: The function of control rod is to control the chain reaction in reactor core by adjusting its height.

Description : where the synchronous condenser are generally installed ?

Last Answer : the synchronous condenser are generally installed at receiving end side of transmission line 

Description : What is Synchronous condenser?

Last Answer : Synchronous condenser Big advantage of synchronous condenser is their large temporary overload capability and good harmonics performance. Synchronous condenser is ... ;voltage levels. Synchronous condenser have slow speed of response.

Description : Draw the block diagram of regulated power supply, explain function of each block and draw waveforms of each stage.

Last Answer : 1. A step down transformer 2. A rectifier 3. A filter 4. A regulator Operation of Regulated Power Supply:- Step Down Transformer:- A step down transformer will ... regulator. A regulator will maintain the output constant even when changes at the input or any other changes occur.

Description : Tower Fans

Last Answer : For many homeowners, space is a precious commodity. Air conditioners are bulky, and most free-standing electric fans - especially those with axial fan blades - take up a lot of space. Many ... space. Tower fans are the answer for homeowners looking for space-saving solutions for their cooling needs.

Description : In case the height of transmission tower is increased, which of the following parameter is likely to change?  (A) Resistance (B) Inductance (C) Capacitance (D) None of the above

Last Answer : In case the height of transmission tower is increased, which of the following parameter is likely to change?  (A) Resistance (B) Inductance (C) Capacitance (D) None of the above

Description : Which of the following is used for thermoelectric cooling? A) Peltier effect B) Seebeck effect C) Both A and B D) None of these

Last Answer : Which of the following is used for thermoelectric cooling? A) Peltier effect B) Seebeck effect C) Both A and B D) None of these

Last Answer : A common method of cooling a power transformer is oil cooling.

Description : Why a transformer requires cooling. What are the methods of cooling transformers?

Last Answer : Ans. Transformers requires cooling as they get heated up due to various losses taking place in the transformer. (like iron of copper losses) Following are the methods of cooling of transformer. a. Natural ... . Forced oil air Natural Cooling (OFAN). d. Forced oil and forced Air cooling (OFAF).

Description : Cooling Fans

Last Answer : Many notebook computer users think that the term "laptop" is a misnomer. After a few hours of use, a notebook computer can get a bit too hot, which makes it uncomfortable to operate on your lap. ... fan will not only keep your notebook in tip-top shape, but it will also make cooler heads prevail.

Last Answer : Natural oil cooling is used for transformers up to a rating of 3000 kVA.

Last Answer : Natural air cooling is generally restricted for transformers up to 1.5 MVA .

Description : Define thermal runaway.

Last Answer : Thermal runaway  The problem with increasing temperature causing increasing collector current is that more current increase the power dissipated by the transistor which, in turn, increases its temperature ... self-reinforcing cycle is known as thermal runaway, which may destroy the transistor. 

Description : Sketch block diagram of satellite earth station and state functions of each block

Last Answer : The figure below shows the general block diagram of an earth station capable of transmission, reception and antenna tracking. The following are the major subsystems of ... , possible monitoring of satellite characteristics and occasionally for the measurement of special characteristics. 

Description : Define the following terms : (i) Base Station (ii) Control Channel (iii) Mobile Station (iv) Page 

Last Answer : i) Base Station: - A fixed station in a mobile radio system used for radio communication with mobile stations. Base stations are located at the center or on the edge of a coverage region ... the page throughout the service area using base stations which broadcast the page on a radio carrier.

Description : Explain the thermal triggering method of SCR. Enlist different triggering methods of SCR.

Last Answer : Types of Triggering: 1) Forward voltage triggering 2) Thermal triggering (Temperature triggering) 3) Radiation triggering (Light triggering) 4) dv/dt triggering 5) Gate triggering ... generated leakage current increases. This current gets multiplied internally and thyristor is turned on. 

Description : Describe thermal runaway of transistor and explain how it can be avoided.

Last Answer : Concept of thermal runaway:  1.We know that  IC = β IB + (1+ β) ICO  Where ICO is the leakage current and ICO is strongly dependent on temperature. 2. Leakage current approximately doubles for ...   Thermal runaway can be avoided by : 1) Using stabilization circuitry 2) Heat sink 

Last Answer : Thermal overload relays are used to protect the motor against overcurrent due to heavy loads.