From these figures it is evident that a transmission of 10 miles may be carried out with continuous-current at constant pressure from a single dynamo with good efficiency and a moderate investment in conductors.
In a generating station at 2,000 volts or more constant pressure, it is desirable to have the magnet coils of the main dynamos connected in multiple and separately excited by a small dynamo at constant pressure.
In either case no especial provision is usually necessary for the regulation of constant pressure on the motor circuits.
The blower is that part of the machine which supplies air for absorbing the gasoline vapor and maintaining a constant pressure on the system.
The force furnished by the weight 4 drives the blower and maintains a constant pressure on the gas in the system.
This expansion is accomplished by an automatic valve that maintains a constant pressure in the large tank.
Between the two tanks is a pressure-regulating valve 6-7, which keeps a constant pressure on tank No.
When used on constant pressure circuits, such as is employed for incandescent lighting, the speed will depend on the load.
It induces a very feeble current, which is not of constant pressure, but pulsating; that is, it consists of two pronounced impulses in each revolution as shown in fig.
This will give for the specific heat of air atconstant pressure 0.
The fact, also, that the specific heats at constant pressure and at constant volume are the same at the point of maximum density, as shown by theory, is an additional argument in favor of selecting this point for the standard.
From Regnault's experiments on the specific heat at constant pressure, and from the known ratio of the specific heats as deduced from the velocity of sound combined with Regnault's result, the value of Cp － Cv may be taken as .
Let the working substance expand under constant pressure by an amount dv (AB' in Fig.
If the vapour phase is absent and the system maintained under a constant pressure, e.
The same changes in the phases occur when heat is added or withdrawn at constant pressure, so long as the three phases are present.
The ratio (k or Cp/Cv ) of the specific heat atconstant pressure to that at constant volume has been found by Maneuvrier and Fournier to be 1.
If the holder does not throw a constant pressure, or if the purifier and drier are liable to cause irregularities, a governor or pressure regulator must be added after the drier.
At the higher limit of pressure, heat is added while the working fluid expands at a constant pressure.
The constant pressure cycle is so called because heat is added to the working fluid at constant pressure.
The ratio of the adiabatic to the isothermal elasticity, required for calculating the velocity of sound, is therefore the same as the ratio of the specific heat at constant pressure to that at constant volume.
The specific heat of gaseous hydrogen (at constant pressure) is 3.
With a variable rate of supply and demand from the upper cylinder, the piston A rises and falls, maintaining always a constant pressure in the upper cylinder.
Jenkin has contrived a valve in which a constant pressure head is obtained, so that the orifice need not be varied (Roy.
The specific heat of coal is very nearly that of gases at constant pressure, and may, without sensible error, be taken as such.
Pfaundler expresses the idea that between them there is the same analogy as there is between a constant pressure and an expansion engine.
In the case of gases a distinction must be made between specific heat at constant volume, and at constant pressure.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "constant pressure" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.
