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Should the cooling water enter the condenser at z or y?
FatmataBinta
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How does ice cool?
Water have a very high heat capacity and that mean water can contain a lot of heat which resulted in the cooling effect. Remember ice is water in solid form.
What has the author Y Y Hsu written?
Y. Y Hsu has written: 'A criterion for the onset of quench for low flow reflood' -- subject(s): Cooling, Nuclear reactors, Emergency core cooling systems, Pressurized water reactors
Some examples of convection?
hot air rising cooling and falling :a hot air balloonboiled water or boiling waterhot air popper
Is this true that water contracts on cooling but it expands when cooled further from 4 degree C to 0 degree C?
Yes it contract and the expansion from 4 to 0 degrees is due to the crystallisation of water molecules.
How is a solids volume measured?
For finding volume you can use water displacement. Get a amount of water (make sure you know what number and how much) and drop your item in the water. The water should have risen. The difference of the Displaced water and the starting water should get you your volume.e.g. 16 mL of water, you drop a marble, the water is now 18 mL. So the volume of the marble is 2 mL.
Why the cooling water enters the condenser at the lower opening and leaves at the upper opening?
Because if water enters from the lowest point, the condenser will always be filled with cold water to ensure efficient cooling. The water should always flow into a condenser at its lowest point and exit from its highest point. This avoids trapping air in the water jacket.
What is reason for low vacuum in surface condenser?
Reasons for low vacuum: 1. Low gland sealing pressure 2. Condenser tubes choked 3. Condenser cooling water temperature high 4. Leakage in condenser tubes 5. Less cooling water flow
In general where are salinity points located in the secondary side of a nuclear power plant?
Salinity points? In coastal plants using sea water cooling, a leak in the turbine condenser can allow sea water to enter the secondary water, as the secondary side is under vacuum in the condenser. Is this what you have in mind?
When water cooled condenser cycles off the regulating valve should?
When a system with a water-cooled condenser cycles off, the water regulating valve should
When water-cooled condenser cycles off the regulating valve should?
When a system with a water-cooled condenser cycles off, the water regulating valve should
How can water enter the crankcase if not from the cooling system?
condentsation
In Liebig condenser what will happen if the water flow from the upper part to the lower part of the condenser?
Heat. The condenser acts through cooling with a greater surface area (on the inside of the condenser); the constant fluid flow keeps the temperature down. If you were to assemble the apparatus so that the water flows from top to bottom, the condenser would never fill up, and your reaction will have difficulty cooling down. Risky if you have volatile chemicals or a reaction that you need to keep cool.
Why you use cooling towers in thermal power station?
This is to cool the steam turbine condenser, where the steam outlet from the turbine's last stage is condensed before returning to the boiler feed pump inlets. The cooling towers circulate water that passes through tubes inside the condenser, separate from the steam/water in the boilers.
Using a diagram briefly explain the layout and functioning of a nuclear power station In your answer refer to the three separate water circuits?
The three water circuits in the nuclear plant are the primary coolant, the secondary or main steam circuit, and the tertiary or condenser cooling system. Below is link to a fairly clear diagram that has all three water circuits in it. Look at the diagram as we give you the scoop one loop at a time. Primary coolant is circulated (forced by the main coolant pumps) through the reactor core to pick up heat. This hot primary coolant is circulated through that steam generator where it boils secondary water to create steam. The primary coolant leaves the steam generator cooler than when it went in (but still hot!), and then returns to the reactor's pressure vessel (where the reactor core is housed) to be reheated. It's a closed loop. In the secondary or main steam system, the feedwater turns to steam in the steam generator. It then leaves that steam generator and goes through the main steam header to the big steam turbines that drive the electric generators. In the main condenser below the steam turbine, the steam condenses back into water as the condenser cooling water circulates through the condenser. The water that used to be steam is now feedwater, and it's pumped back into the steam generator to begin the steam cycle again. The condenser cooling water that cooled the exhaust steam to convert it back to water is pumped out into a heat exchanger (evaporative cooling tower). Thus cooled there, the main condenser cooling water is pumped back into the main condenser to remove heat from the exhaust steam to convert it back to water. This completes the main condenser cooling cycle. A link below will lead you to a fairly clear diagram with the three cooling circuits in it. With a bit of jumping between the explanation and the diagram, you should be able to see everything clearly.
What effect will a dirty condenser have on an air conditioner?
A dirty condenser will lower the cooling efficiency when AC is on. They can easily be cleaned with spray foam soap and a water hose. Also in cold climates, it is best to just cover the condenser to prevent snow build up/melt.
How will cooling towers inprove the efficiency of power stations?
The efficiency of the Rankine cycle depends on extracting as much energy from the steam flow through the turbine as possible, and to do this you need to have as low a vacuum in the condenser as possible. The lower the temperature of the cooling water flow through the condenser, the lower the vacuum that can be achieved. Cooling towers are often the best solution, though plants on a large lake or the ocean can use direct cooling supplies from that source and this may give better efficiency. It all depends on the cooling water temperature that can be achieved.
Why hotwell level is maintained in condenser?
High hotwell level will get the cooling water tubes of condenser submerged in the condensate hence cooling efect will be reduced consequentaly vacuum will drop. Low hotwell level will lead to low suction pressure of Condensate Extraction Pump hence it may lead to cavitation.
