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What are the six types of motor enclosures of Electrical matchines?
Types of enclosures are as follows:- 1)open type enclosure-(it is open from both the ends) 2)protected type enclosure-(not completely open from both the ends) 3)drip proof type enclosure-(does not allow liquid or moisture to enter) 4)totally enclosed enclosure-(does not allow foreign particles to enter) 5)pipe ventilated enclosure-(used for providing ventilation for motor) 6)flame proof enclosure-(used when motor is to be used in explosive atmosphere)
What is the effect of steam turbine control valve throttling in turbine efficiency?
In Boiler follow turbine mode , Boiler produces a constant pressure behind throttling valve and throttling valve adjusts necessary pressure and required steam as High Pressure steam for entering the turbine . In Valves Wide Open (VWO) mode the efficiency is maximum and we haven't any loss. (It's nearly 106% Turbine MCR) . In Turbine MCR , we have a little loss and consequently a little bit worse heat rate . In partial load , loss is more and efficiency worse.
Why is it necessary to open casing drains and drains on the steam line going to the turbine when a turbine is to be started?
To avoid slugging nozzles and blades inside the turbine with condensate on start-up; this can break these components from impact. The blades were designed to handle steam, not water.
Open cycle arrangement of a gas turbine?
1. The working gas is compressed in compressor and directed towards the heat exchanger (Air heater), where heat is being added to the compressed gas before it enters the turbine. 2. The heat is supplied by an external source such as a nuclear reactor, or some other heat source. 3. The hot gasses then expend and accelerate through a nozzle which drive the guide vanes of the turbine and then shaft. 4. At last, the remaining exhaust gasses pass through a cooler and directed towards the compressor inlet.
How you construct a weightless turbine?
Essentially a turbine looks like a jet engine in reverse, where steam, gas, or liquid is forced through at speed or high pressure to turn a central rotor. if we cut one open the turbine looks like a series of fans inside a tube. Each fan from the from of the tube gets progressively smaller pitched blades.In between each moving blade is a static fan blade to redirect the wake of the previous blade section and increase the speed of the turbine rotor.
Describe construction of open machine enclosure?
You tell me
What are the six types of motor enclosures of Electrical matchines?
Types of enclosures are as follows:- 1)open type enclosure-(it is open from both the ends) 2)protected type enclosure-(not completely open from both the ends) 3)drip proof type enclosure-(does not allow liquid or moisture to enter) 4)totally enclosed enclosure-(does not allow foreign particles to enter) 5)pipe ventilated enclosure-(used for providing ventilation for motor) 6)flame proof enclosure-(used when motor is to be used in explosive atmosphere)
What is the effect of steam turbine control valve throttling in turbine efficiency?
In Boiler follow turbine mode , Boiler produces a constant pressure behind throttling valve and throttling valve adjusts necessary pressure and required steam as High Pressure steam for entering the turbine . In Valves Wide Open (VWO) mode the efficiency is maximum and we haven't any loss. (It's nearly 106% Turbine MCR) . In Turbine MCR , we have a little loss and consequently a little bit worse heat rate . In partial load , loss is more and efficiency worse.
Which of the following contributed to closing the open range?
enclosure of land and barbed wire
What is turbine drain valve?
When steam is introduced to a turbine during start up, drain valves are fully open. They drain to the condenser until the turbine reaches a certain load. Once that load is reached, the valves are closed and turbine runs normally.
What causes a turbo not to spool up?
Either the turbo/turbine housing is too large, the waste gate is stuck open, or the turbine fins are damaged.
How was the enclosure carried out?
Enclosure was the process of enclosing agricultural lands with boundaries such as fences, walls, hedges or ditches. Enclosure also enabled urban development. Little enclosure took place on heathland, moorland, or in industrial areas.The enclosure was carried out by having land formally categorized as common land (open fields) under some collective control leading to creation of legal property rights.
What are the license required to open the hotel?
what are the license required to open the hotel?
What does a turbine do for black ops 2?
In zombies, the Turbine is really helpful.The Turbine is classified as a buildable, requiring you to "build" it. It can be "crafted" by collecting the parts in the bus top by going near the part and pressing the required button. It will then have to be "added" by going to the work bench and holding the required button (extremely dangerous if you are followed by a huge hoard of zombies). Once all three parts are added, any player can take it by going up to the work bench and pressing the required button. However, should you "craft" and pick up another equipment, the Turbine will be traded out and will be "dropped" causing zombies to go after it and possibly destroy it if it is not picked back up. The Turbine has many advantages as follows:It works as an excellent distraction to revive, reload, or otherwise just relax from a fight. If you put it down near a hoard, the zombies will "ignore" you and go after the Turbine. However, this can get the Turbine destroyed.It opens any doors that have the sign "You will need a source of power". To do this, put the Turbine in front of the door and it will open after a while. However, picking the Turbine back up will cause the door to close.You can buy Perks without turning on the power. To do this, put the Turbine in front of the Perk machine and you can buy the Perk after that. However, picking it back up will cause the machine to shut down, disabling your ablity to buy the Perk.You can "save" money by using the Turbine to open the side door in the Bus stop, rather than wasting money in the front door. You can (but not always) find a "bus part" in the room at the side which you can use to upgrade the bus.The Turret, another buildable, needs the Turbine next to it for it to function.
What is open cycle and closed cycle?
In an open cycle gas turbine, the gases that are produced by combustion go directly into the atmosphere, though the heat produced can sometimes be reclaimed. In a closed cycle gas turbine, the gases produced are reused and are not emitted into the atmosphere.
Why is it necessary to open casing drains and drains on the steam line going to the turbine when a turbine is to be started?
To avoid slugging nozzles and blades inside the turbine with condensate on start-up; this can break these components from impact. The blades were designed to handle steam, not water.
Which component when open allows engine exhaust to bypass the turbocharger turbine reducing intake pressure.?
wastegate
