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For increasing steam turbine efficiency.
if vacuum is not maintained then, uncondensable gases and air in condenser will increase the condenser pressure.
What else can I help you with?
Why the vacuum is maintained in Steam condenser?
It is important to maintain a vacuum in a condenser if you want it to work well.
What is Difference between vacuum condenser and atmospheric condenser?
An atmospheric condenser operates naturally at atmospheric pressure (1.013bar). A vacuum condenser operates at pressures below atmospheric and will use some sort of pump to provide a vacuum.
What should be the possible reasons of vacuum drop of turbine?
In the low pressure side of a steam turbine, the vacuum is maintained by the condensation of steam in the condenser. At high loads, the condenser may not satisify the demand, allowing steam to remain gaseous for a longer period of time. This can cause pressure to rise.
How is a vacuum created in a condenser?
by air pump
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
What factors affect condenser vacuum?
Condenser vacuum is primarily affected by factors such as the temperature of the cooling water, the presence of non-condensable gases, and the efficiency of the condenser design. High cooling water temperatures can reduce the heat transfer efficiency, leading to a higher pressure in the condenser. Additionally, non-condensable gases, like air, can accumulate and impede the vacuum, while a well-designed condenser enhances heat exchange, maintaining optimal vacuum levels. Regular maintenance and proper operation also play crucial roles in sustaining effective condenser vacuum.
How long should you pull a vacuum on normal change out of a compressor or condenser?
When changing out a compressor or condenser, it's generally recommended to pull a vacuum for at least 30 minutes to 1 hour. This duration ensures that any moisture and contaminants are removed from the system. It's important to achieve a vacuum level of 500 microns or lower to ensure optimal performance and prevent future issues. Always monitor the vacuum gauge to confirm that the desired level is maintained throughout the process.
What is kenotometer?
A kenotometer is an instrument used in steam turbine condensers to measure the vacuum in the steam space of the condenser. The vacuum achieved by the condenser has significant influence on the efficiency of the steam turbine.
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.
Why is vacuum in the condenser of such importance?
If you are talking about a condenser attached to a steam turbine, then a vacuum is important because it extends the usefulness of the steam in the turbine. As you probably know, steam begins to condense back into water at 212 deg at atmospheric pressure. However, in a vacuum condition, the boiling and condensing temperature is lower. Because the condenser is under a vacuum, steam exits the turbine and enters the condenser around 130 deg. This results in more power (mega watts).
What is the function of a vacuum pump in cooling condenser?
A vacuum pump in a cooling condenser functions to remove air and non-condensable gases from the condenser system, thereby maintaining a vacuum environment. This reduction in pressure enhances the efficiency of the condensation process by lowering the boiling point of the refrigerant, allowing it to condense more effectively. By ensuring that only the refrigerant vapor enters the condenser, the vacuum pump helps optimize heat transfer and improves overall system performance.
What will happen if vacuum in surface condenser is very high?
If the vacuum in the surface condenser it very high, it results in higher practical thermal efficiency. It is important for you to keep the temperature to 100 Celsius or lower for it to work properly.
