0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
What is the order of efficiency of venturi meter orifice meter and rotoameter?
The orifice plate can easily be changed to accomodate widely different flow rates, whereas the throat diameter of a venturi is fixed, so that its range of flow rates is circumscribed by the practical limits of Dp.The orifice meter has a large permanent loss of pressure because of the presence of eddies on the downstream side of the orifice-plate; the shape of the venturi meter prevents the formation OS these eddies and greatly reduces the permanent loss.The orifice is cheap and easy to install. The venturi meter is expensive, as it must be carefully proportioned and fabricated. A home made orifice is often entirely satisfactory, whereas a venturi meter is practically always purchased from an instrument dealer.On the other hand, the head lost in the orifice for the same conditions as in the venturi is many times greater. The power lost is proportionally greater, and, when an orifice is inserted in a line carrying fluid continuously over long periods of time, the cost of the power may be out of all proportion to the saving in first cost. Orifices are therefore best used for testing purposes or other cases where the power lost is not a factor, as in steam lines.However, in spite of considerations of power loss, orifices are widely used, partly because of their greater flexibility, because installing a new orifice plate with a different opening is a simpler matter. The venturi meter can not be so altered. Venturi meters are used only for permanent installations.It should be noted that for a given pipe diameter and a given diameter of orifice opening or venturi throat, the reading of the venturi meter for a given velocity is to the reading of the orifice as (0.61/0.98)2, or 1:2.58.(i.e. orifice meter will show higher manometer reading for a given velocity than venturi meter).
Is shear thinning fluids and the linear viscoelastic fluids are the same?
no
What will happen if we use current transformer of different rating for each phase in three phase supply?
A current transformer has to have the same ratio as the meter that it drives. Full scale deflection on the meter is 5 amps which equals the maximum allowed current on the phase that it is reading. A different ratio on the CT to meter would show an erroneous reading on the meter depending on the ratio of the connected CT. To keep costs down the meter is common to all three phases and is read by connecting the meter to the phase CT through a three position switch.
Why does your digital multimeter read ac and dc on same terminal?
The switching of the circuitry is done internally for the different voltages. This is done when you move the switch on the front of the meter from AC to DC.
How much per meter is hydraulic hose?
Hydraulic hose cost per meter depends on the gauge of hose desired, but as an example, 5/16" hydraulic hose can be obtained for approximately 3.48 British Pounds Sterling per meter. 1.3/16" hydraulic hose can be obtained for approximately 11.43 BSP per meter.
What is the order of efficiency of venturi meter orifice meter and rotoameter?
The orifice plate can easily be changed to accomodate widely different flow rates, whereas the throat diameter of a venturi is fixed, so that its range of flow rates is circumscribed by the practical limits of Dp.The orifice meter has a large permanent loss of pressure because of the presence of eddies on the downstream side of the orifice-plate; the shape of the venturi meter prevents the formation OS these eddies and greatly reduces the permanent loss.The orifice is cheap and easy to install. The venturi meter is expensive, as it must be carefully proportioned and fabricated. A home made orifice is often entirely satisfactory, whereas a venturi meter is practically always purchased from an instrument dealer.On the other hand, the head lost in the orifice for the same conditions as in the venturi is many times greater. The power lost is proportionally greater, and, when an orifice is inserted in a line carrying fluid continuously over long periods of time, the cost of the power may be out of all proportion to the saving in first cost. Orifices are therefore best used for testing purposes or other cases where the power lost is not a factor, as in steam lines.However, in spite of considerations of power loss, orifices are widely used, partly because of their greater flexibility, because installing a new orifice plate with a different opening is a simpler matter. The venturi meter can not be so altered. Venturi meters are used only for permanent installations.It should be noted that for a given pipe diameter and a given diameter of orifice opening or venturi throat, the reading of the venturi meter for a given velocity is to the reading of the orifice as (0.61/0.98)2, or 1:2.58.(i.e. orifice meter will show higher manometer reading for a given velocity than venturi meter).
In life with Derek is Derek venturi the oldest then casey McDonald is next?
i think they r the same age obviously different b-days ......
Is water resistance and fluid resistance same?
no bcoz the density and viscosity of the water and different fluids and not same
The stanzas of a poem are mostly different lengths and have the same pattern of rhyme and meter?
the stanzas of a poem are mostly the same length and have the same pattern of rhyme and meter
Is cubic meter and cubic centimeter the same?
If they were the same, there would be no need for different names.1 cubic meter = 1,000,000 cubic centimeters.
Two waves have the same fetch and were created by winds of equal speed why might one wave be higher than the other?
There are many possible reasons. Some are: They could be in different fluids. The fluids could be flowing in different directions. The depths of the fluids (and slope of the beds) could be different.
Is measurement the same thing as meter?
no it is not. They are two very different things.
Is shear thinning fluids and the linear viscoelastic fluids are the same?
no
How does 1 meter surface of pond compared to the surface of 1 meter of huge lake?
The surface areas are exactly the same. Their temperatures are likely to be different, though.
In life with Derek is Derek oldest then casey Edwin Lizzie then marti right?
i think so but, Derek and Casey could be in the same grade. i think this could be the right order Derek Venturi 181/2 12th Casey McDonald 18 12th Edwin Venturi 12 6th Lizzie McDonald 11 5th Marti Venturi 8 3rd
Is a linear meter the same as a meter?
Yes.
How do you convert running meter into meter?
They are the same.
