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What is Difference between vacuum condenser and atmospheric condenser?
Wiki User
∙ 14y ago
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.
Wiki User
∙ 14y ago
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What gauge measures both vacuum and pressure?
Gauge pressure usually refers to the pressure difference between ambient, atmospheric pressure and the pressure in a vessel or line. A gauge pressure of zero would mean that the vessel or line was at atmospheric pressure. Normally the pressures of interest are ABOVE atmospheric so the gauge pressure is positive. Vacuum gauge pressure measures how far BELOW atmospheric pressure a vessel or line is. As such vacuum gauge pressure may be measured as a negative number - or for convenience it may be reported as a positive number with the caveat that it is "vacuum gauge pressure", meaning that the reported pressure is how far atmospheric pressure is above the pressure in the vessel or line.
The Difference Between Generic and Brand Name Vacuum Cleaners?
When it comes to vacuum cleaners, many people feel like they need to purchase brand name vacuum cleaners to get the results they want. However, this is not always the case. The reality is that you can find a number of great generic vacuum cleaners out there that perform at the same level of brand name cleaners. The only real difference is that you'll end up paying a fraction of the price with generic cleaners.
Explain the operation of a crude unit?
Crude oil is heated in a series of heat exchangers by exchanging heat with products and column pumparounds. Final heating is done by a fire heater before entering the atmospheric column. The overhead product is offgas and light naphtha. Heavier cuts are taken as sidedraws and may include heavy naphtha, jet (kerosene), diesel, and atmospheric gas oil. These products are stabilized in sidestrippers using either reboilers or stripping steam. The naphtha, kerosene, and diesel products are processed further in downstream units such as reformers and hydrotreaters. The atmospheric gas oil is usually combined with the light vacuum gas oil and heavy vacuum gas oil (see paragraph below) and sent to an Fluidized Catalytic Cracking Unit (FCCU). It may or may not be sent to a hydrotreater prior to being sent to the FCCU. The bottoms of the atmospheric column is heated further and sent to a vacuum column, which allows the heavier molecules to vaporize at a temperature lower than it would if it was at atmospheric pressue. This is to avoild cracking due to high temperatures. The side products are the light vacuum gas oil and heavy vacuum gas oil mentioned above. The bottoms of the vacuum column (resid) is usually sent to a coker where it is thermally cracked to lighter products.
What is the difference between smart lipo and regular lipo?
In traditional liposuction, body fat is removed with a needle and vacuum that is put under the skin without the use of a laser. Smart Liposuction uses as laser to break down the fat deposits.
A compound pressure gauge for the low side of the system measures pressure in what?
A compound pressure gauge measures two scales, one in positive pressure and one in negative (below atmospheric) pressure or vacuum positive pressure is measured in pounds per square inch (psi) or kilopascals or in some cases bars (1 bar = 14.35 psi) [ the average atmospheric pressure at 1000 feet above sea level] vacuum is measured in millimeters of mercury mmHg or inches of mercury inHg
What causes Back pressure on cooling system?
Condenser Backpressure is the difference between the Atmospheric Pressure and the Vacuum Reading of the Condenser, that is: Backpressure = Atm. Pressure - Condenser Vacuum Pressure Reading Usually, the condenser vacuum pressure is read by a manometer installed at the condenser. The atmospheric pressure is read using a barometer
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).
Why the vacuum is maintained in condenser?
For increasing steam turbine efficiency. if vacuum is not maintained then, uncondensable gases and air in condenser will increase the condenser pressure.
Why barometric condenser is installed at least 34 feet 10.4 meters above the ground?
Because this high (which is the height of a lliquid column equivalent to the atmospheric pressure) will compensate the atmospheric pressure autside of the system under vacuum
What is the barometric pressure sensor do in a 1999 Mercury Villager 3.3L?
Provides a reference for the difference between atmospheric pressure and manifold vacuum, which varies depending on throttle position and load.
How is a vacuum created in a condenser?
by air pump
What gauge measures both vacuum and pressure?
Gauge pressure usually refers to the pressure difference between ambient, atmospheric pressure and the pressure in a vessel or line. A gauge pressure of zero would mean that the vessel or line was at atmospheric pressure. Normally the pressures of interest are ABOVE atmospheric so the gauge pressure is positive. Vacuum gauge pressure measures how far BELOW atmospheric pressure a vessel or line is. As such vacuum gauge pressure may be measured as a negative number - or for convenience it may be reported as a positive number with the caveat that it is "vacuum gauge pressure", meaning that the reported pressure is how far atmospheric pressure is above the pressure in the vessel or line.
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 the difference between a vacuum and a Hoover?
Spelling.
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 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.
How can you reduce the amount of atmospheric pressure in a vacuum room?
You can't. There is no atmosphere in a vacuum.
