2007-11-15 15:18:14 · 8 answers · asked by Anonymous in Education & Reference ➔ Homework Help
One reason would be so that you can move the fluid from one place to another, like if you had a tank of water hooked up to a fire hose. If that water isn't pressurized or isn't being pumped it's not going anywhere.
Raising the pressure of a liquid also raises its boiling point. The higher the pressure, to more heat it takes for it to boil. A lot of nuclear power plants have pressurized water reactors for this reason.
Some pumps run better if the liquid going into it is at a higher pressure.
2007-11-15 15:29:37 · answer #1 · answered by Anonymous · 0⤊ 0⤋
there are a couple reasons to put a fluid under pressure.
1) to compress it. For example, in Hydrogen Cars (if they ever become a reality) it is necessary to compress fluids or put them under pressure in order to increase the amount that a car can hold and therefore run off of.
2) the properties of fluids are valuable. Pascal's law states that when you put force on an incompressible fluid the fluid exerts the same force everywhere else. This is how hydraulic brakes (like in your car) work. The pressure from your foot pushing down on the brake petal is equivalent to the pressure of the each brake on the wheel. This makes it a valuable means of stopping cars. In fact, hydraulics all rely on this principle and there are a myriad of machines that rely upon fluids in order to accomplish this.
2007-11-15 15:29:34 · answer #2 · answered by comatoseraccoon 2 · 0⤊ 1⤋
1 Hydraulic jacks use pressurized fluid for lifting (work).
2 Your water in your house faucets are a fluid under pressure. as in transporting fluids to different locations.
also Alaskan oil pipeline.
Firetrucks pump water for spraying .
2007-11-15 15:31:59 · answer #3 · answered by Robert F 7 · 0⤊ 0⤋
To help it flow easier without exerting more energy onto it.
Think if a gas tank...gas pressure builds up in the tank (open up a gas tank after oyu've been driving around for a while) allowing the gas to be fed through the delivery system easier, without the delivery system needing extra energy from other parts of the engine.
2007-11-15 15:23:05 · answer #4 · answered by Brandon W 5 · 0⤊ 1⤋
To do work i.e. Hydraulic Jack. Or to increase it's boiling point
2007-11-15 15:32:10 · answer #5 · answered by Anonymous · 0⤊ 1⤋
To create hydrological movement
2007-11-15 15:22:38 · answer #6 · answered by wangsuda2003 3 · 0⤊ 1⤋
To lubricate moving parts.
2007-11-15 15:21:07 · answer #7 · answered by jasper 2 · 0⤊ 1⤋
1: to increase its boiling point
2: to increase its resiliency
3: to increase its shelf life
4: to increase its energy output - hydrolics
2007-11-15 15:24:08 · answer #8 · answered by 80's kid 6 · 0⤊ 1⤋