2007-12-01 15:03:49 · 10 answers · asked by TsF! 1 in Science & Mathematics ➔ Engineering
Head is related to potential energy, which is easily understandable when you talk of elevation head. However, there are also two other heads, velocity head and pressure head. To combine the 3 heads they are converted into equivalent potential energy head.
2007-12-01 16:19:47 · answer #1 · answered by Anonymous · 3⤊ 0⤋
Fluid Head Pressure
2016-10-18 00:27:52 · answer #2 · answered by Anonymous · 0⤊ 0⤋
someone will answer this better than i will but, basically it has to do with pressure. If you have a pump and you need to pull water from an elevation below the pump, the pump needs to overcome negative head pressure to move the water. However, if the water was above the pump it would be called positive head pressure. of course there are other things that would need to be factored such as the friction resistance in the pipe, what fluid was being pumped, the distance, etc.
2007-12-01 15:12:25 · answer #3 · answered by jesse d 2 · 1⤊ 0⤋
In fluid mechanics head is the total combined resistance to the movement of a fluid . Its a "grandpa clause" type description that includes pump capacity based on suction ,discharge, heigth of rise and pipe friction viscosity and pipe configuration. The term lift is referred to in the rate of flow as so many feet feet at so much volume. A good pump designers computer may have as many as 10 entries as variables but when it all comes down to it the horsepower and the gpm@ psi with Xfeet of head are the BASICs......From the E...
2007-12-01 18:02:51 · answer #4 · answered by Edesigner 6 · 0⤊ 0⤋
Characteristics Of Centrifugal Pumps
Centrifugal pumps are specified by four characteristics.
1…Capacity:
This is defined as the quantity of liquid which is discharged from the pump in a given time. Capacity is expressed in 'm³/hr', 'gal/min', ..etc.The capacity of a pump is governed by the 'Head', the 'Speed' and the 'Size' of the pump.
2…Total Head:
The total head of a pump is the difference between the pump suction and discharge pressures - expressed in terms of metres or feet head :-
3…Suction Head:
This is the vertical distance, in feet or metres, from the centreline of the pump to the level of liquid in the vessel from which the liquid is being pumped.
If the liquid level is above the pump centreline, the suction head is positive. If below the centreline, the suction head is negative.
Discharge Head:
Is the discharge pressure of the pump, expressed in feet or metres of liquid.
Total Head: = Discharge head - Suction head
2007-12-01 16:51:52 · answer #5 · answered by Norrie 7 · 0⤊ 0⤋
Head is usually interpreted to mean either a positive or negative fluid pressure, or a positive or negative fluid depth upon an object.
If the liquid lies below the object the fluid pressure (head) or depth (head) is a negative value, and if the fluid lies above the object the fluid pressure (head) or depth (head) is positive value.
2007-12-01 15:57:36 · answer #6 · answered by gatorbait 7 · 1⤊ 0⤋
Disturbia
2016-03-14 02:49:26 · answer #7 · answered by Anonymous · 0⤊ 0⤋
Could not understand Sara's comment????
2016-08-02 00:58:17 · answer #8 · answered by RANA 1 · 0⤊ 0⤋
It is when a female or male place their lips around a penis and lick or suck like hell until ejaculation. They are then paid for their services and a cab is called.
2013-11-24 09:34:55 · answer #9 · answered by Sara 1 · 0⤊ 0⤋
its mainly related to pressure difference between the object and liquid
2013-11-24 02:49:39 · answer #10 · answered by harmanjeet 1 · 0⤊ 0⤋