What is the difference between orifice and mouthpiece?

An orifice is an opening made in the side or bottom of tank, having a closed perimeter, through which the fluid may be discharged. A mouthpiece is short tube fitted to a same size circular opening provided in a tank so that fluid may be discharged through it.

Which one is better orifice and mouthpiece for measuring discharge?

Mouthpiece is basically used in order to determine the rate of flow of fluid. Dimension of mouthpiece will be comparatively larger than the dimension of orifice. Therefore, flow through the mouthpiece will be quite larger as compared with flow through the orifice.

What is the use of mouthpiece?

Mouthguards are dental devices that cover your teeth. A mouthguard protects your teeth, tongue, gums and cheeks from trauma caused by teeth grinding or sports injuries.

What is a mouthpiece in fluid mechanics?

Mouthpeice in Fluid Mechanics. A mouthpiece is a short length of pipe or tube attached to the tank or vessel, used to determine the rate of flow of fluid. It is an extended form of an orifice with a length equal to 2 to 3 times the diameter of the orifice.

What are the different types of mouthpieces?

Orifice

What is orifice and type?

Types of Orifice Plates. Square Edge (Standard) Bore. For the common square edge concentric bore orifice, the bore and bevel is the standard method of limiting the plate edge thickness. Unless otherwise specified, plates will be beveled to the current accepted standards. Quadrant Edge Bore.

What is orifice and its type?

Orifice is defined as the small opening on side or bottom of a tank through which any kind of fluid is flowing. The opening can be of circular, triangular or rectangular in cross section and they are named on the basis of shape accordingly. Orifices are mainly used for measuring the rate of fluid flow.

What is the difference between notch and orifice?

An orifice may be defined as an opening provided in the side or bottom of tank or vessel such that the liquid flows through the entire orifice. A notch may be defined as an opening provided in the side of tank or vessel such that the liquid surface in tank is below the top edge of opening.

What is mouthpiece in FM?

Mouthpiece is an extended form of orifice in which a tube or pipe is attached to the orifice. The length of pipe attached to the orifice is 2 to 3 times diameter of orifice (Fig. 21.1). A mouthpiece is used to measure discharge.

What is depth of orifice?

Depth of orifice, d = 1.2 m. Height of water from top edge of orifice, H1 = 3 m. Difference of water level on both sides, H = 3 + 0.5 = 3.5 m. Height of water from the bottom edge of orifice, H2 = HI + d = 3 + 1.2 = 4.2 m. The orifice is partially submerged.

Is orifice better than mouthpiece?

Actually both orifice and mouthpiece are openings of different types but both are used to measure the discharge of water or liquid. But the basic difference is that: Orifice is actually a small opening which may be located at top or bottom or on the sides of tanks.

What is definition of mouthpiece?

Definition of mouthpiece

1 : something placed at or forming a mouth. 2 : a part (as of an instrument) that goes in the mouth or to which the mouth is applied. 3a : one that expresses or interprets another's views : spokesman. b slang : a criminal lawyer.

What is large orifice?

According to the classification of the shape of the orifice, If the head of the liquid from the centre of the orifice is less than five times the depth orifice, then it is known as the large orifice. And if the head of the liquid is more than five times the depth, it is known as the small orifice.

Why CD of orifice is less than mouthpiece?

Losses in orifice meter are more as there are no convergent and divergent cones and therefore the coefficient of discharge is less.

What is the difference between orifice meter and Venturimeter?

There are three parts in a venturi meter, and they are the converging section, the throat, and the diverging section. Whereas the orifice meter consists of a thin plate and a bore. The pressure loss in venturi meter is 10% while in the orifice meter the pressure loss is 50-60%.

What is notch and weir?

A notch is an opening in the side of a measuring tank or reservoir extending above the free surface. A weir is a notch on a large scale, used, for example, to measure the flow of a river, and may be sharp edged or have a substantial breadth in the direction of flow.

What is difference between weir and barrage?

Barrages are built near cities so that the amount of water flowing in the river can be controlled by opening and closing the gates to save the city from flooding. A weir, in contrast, is built, for example, in tourist destinations and preservation areas to allow the fish to swim upstream.

What is difference between notch and wire?

Basically there is no difference between a notch and a weir, except that a notch is of small size while a weir is of large size. A notch is usually made of metal plate whereas a weir is made of masonry or concrete. The bottom edge over which the water flows is called the sill or the crest of water the notch.

What is difference between open channel flow and close channel flow?

However the major difference is that the flow in closed conduit is influenced by pressure in the line whereas same in open channel it only by gravity. And in case of closed conduit fluid does not come in contact with atmosphere, whereas in open channel it is in touch with atmosphere.

How does a orifice work?

Orifice plates are a primary flow element, detecting the flow of a fluid passing through the plate by sensing the pressure drop across the plate. When a fluid flows through a restriction in a pipe, it creates a pressure difference between upstream and downstream of the restriction.

How are mouthpiece classified?

Mouthpieces are classified on the basis of their shape. On the basis of their shape, mouthpieces are classified as cylindrical mouthpieces, convergent mouthpieces and convergent-divergent mouthpieces.

What is mouthpiece running full?

Mouthpiece Running Full

If the jet, after contraction, expands and fills up the whole mouthpiece, it is said to be running full as shown in fig-2. If the length of the mouthpiece is more than 3 times the diameter of the orifice, it will run full. Consider a mouthpiece running full.

What is an orifice in engineering?

An orifice is an opening, of any size or shape, in a pipe or at the bottom or side wall of a container (water tank, reservoir, etc.), through which fluid is discharged. If the geometric properties of the orifice and the inherent properties of the fluid are known, the orifice can be used to measure flow rates.

What is orifice size?

The orifice diameter is the internal opening of the valve and is used to calculate the flow capacity of the valve. Metric or English makes no difference. It's the inside hole. The inlet size is the interface or the size/type of the threads where you attach the valve.

What is a bell mouthed orifice?

In the case of a bell mouthed orifice, a rounded passage is provided in the orifice and the discharge liquid will be in contact with the entire inner surface of the orifice. Due to decreased friction a bell mouthed orifice has a greater discharging capacity.