What is a jet condenser?
noun. a steam condenser in which steam is condensed by jets of water.
What is condenser in sugar industry?
Condenser pro Open Nozzle Condenser Open Nozzle Condensers are essential for the sugar industry to carry out the crystallization process under low pressure conditions. Apart from creating vacuum in the pans, condensers can play significant role to optimize the pan station improving the overall plant performance.
How does a barometric condenser work?
Barometric condensers are utilized to desuperheat and condense the incoming vapors plus cool the exiting gases, while developing the lowest possible pressure. There are two principal types of condensers, namely counter flow and parallel flow.
How jet condenser is different from surface condenser?
In surface condensers, there is no direct contact between the exhaust steam and the cooling water. Jet condensers (or mixing type condensers). In jet condensers, there is direct contact between the exhaust steam and cooling water.
How many types of jet condensers are?
There are mainly three types of jet condensers. Low level condenser. High level condenser. Ejector condenser.
What is barometric leg height?
Condensate drains by gravity, so the barometric leg must be high enough to ensure that con- densate does not enter and flood the condenser. Flooding lower tubes makes them ineffective for heat transfer. The barometric legs should be at least 34 ft above the condensate receiver for 100% water condensate.
Why is the water inlet at the bottom of the condenser and the outlet at the top?
Water should always enter from the bottom of a condenser (the end closest to the flask) and exit from the top of the condenser. Doing it this way always ensures that your condenser will be full of cooling water.
Why vacuum is maintained in condenser?
A vacuum is maintained in the condenser so that steam can easily flow and more work can be extracted from the steam in the turbine; this is the reason why vacuum is maintained in condensers. Therefore, some methods must exist to initially cause a vacuum to exist in the condenser.
Which condenser is also called barometric condenser?
high level counter flow type jet condenser
Which of the following condensers is also called barometric condenser? Explanation: A high level counter flow type jet condenser is also called as barometric condenser.
Which type of condenser are jet type?
Parallel flow type condensers
Explanation: Parallel flow type condensers are a type of jet condensers. Further parallel flow condensers are classified into high level type and low level type.
Why is barometric leg important?
Improper barometric leg design will reduce the performance of the condenser. Since the condensate drains by gravity, the barometric leg must be high enough to make sure the condensate does not enter the condenser and flood the lower tubes. If the tubes flood, they will not be able to transfer heat effectively.
How do you calculate barometric legs?
Just locate the Condenser a suitable distance above the Receiver, and the water will flow downhill against the pressure difference. The calculation of what constitutes a “suitable distance” is what you call “calculate barometric leg”, since the piping between the Condenser and the Receiver is called the barometric leg.
Why is it best to have the water inlet at the end close to the end of the condenser rather than point 5?
What happens when a condenser loses its vacuum?
A common cause of poor condenser vacuum is excessive air ingress or leakage. Any fall in condenser vacuum would have consequent rise in turbine heat rate vis-à-vis plant heat rate. As a result, cost of power generation would increase with eventual loss in revenue earning.
How do you increase condenser efficiency?
Reducing cooling water temperatures is a sure-fire way to improve condenser performance: A decrease in cooling water temperature of 10 degrees F can improve the overall heat rate of a power plant by 1%.
What is the work of evaporator?
The main job of the evaporator coil is to cool the refrigerant so that it can absorb the heat. As the fan blows air over the coil, the refrigerant becomes cold and turns into a vaporous state.
What is a multi-jet condenser?
Multi-Jet Condensers are designed to operate the work of vacuum pump and condenser in one unit. These types are used in connection with steam engines and turbines and industrial process operations. This type does not require a barometric leg; can be discharged directly into a hot well.
What is the difference between evaporator and condenser coils?
Evaporator and condenser coils handle different sides of the cooling cycle. Let’s walk through the evaporator coil first. An air conditioner‘s evaporator coil, also called the evaporator core, is the part of the system where the refrigerant absorbs heat.
What is the root cause of the problems of multi jet condensers?
So as to find out the root cause of the problems, an assessment has been carried out on all systems and equipments associated with multi jet condensers. The assessment work was focused on: 1. the extent of sugar loss during sugar processing. 2. Probable causes of vacuum drop.
How does dust affect the efficiency of an evaporator?
Even a fine layer of dust on the evaporator coil reduces its efficiency. The dust acts as an insulator, keeping the heat in and the air away from the cold coils. That means the coil can’t absorb as much heat as it can when clean.