Volume flowrate

In a compressor, like a liquid pump, the real volume flowrate is smaller than the displacement volume. This is due to several factors. These are ... 

Chemicals were supplied to the evaluative lake by two routes by emissions of 0.001 mol/h directly into the water, and by advection into the ajjj consisting of an air flow of 6.0 x 10 m3/h containing 5.0 x 10 mol/m3 (approximately 1.3 ng/m3) resulting in a net inflow of 0.0003 mol/h. Total emissions are thus 0.0013 mol/h. This advection rate corresponds to an air residence time (volume/flowrate) of 100 hours. 

Calculate (a) the mean residence time of tracer in the vessel and (b) the dispersion number. If the reaction vessel is 0.8 m in diameter and 12 m long, calculate also the volume flowrate through the vessel and the dispersion coefficient. 

In a cube of side X, the volume of free space is eX3 so that the mean cross-sectional area for flow is the free volume divided by the height, or eX2. The volume flowrate through this cube is ucX2, so that the average linear velocity through the pores, u, is given by ... 

Process Odour Strength, D Volume Flowrate (m3 s 1) Odour Emission (m3 s 1)... 

Thus, by combining the cross-sectional area of the tube, r TT, and the mean velocity (Equation 2.92) we can come up with an expression for the volume flowrate F ... 

Considering numerical values, the total volume flowrate v 0.005 m /s. 

As a model of a certain poorly agitated continuous stirred-tank reactor of total volume V, it is supposed that only a fraction w is well mixed, the remainder being a dead-water zone. Furthermore, a fraction / of the total volume flowrate v fed to the tank by-passes the well-mixed zone completely (Fig. 2.24a). 

Figure 30 Types of solvent extraction strategy in which V is the organic phase volume flowrate, y the concentration of solute in the organic feed, yp the concentration of solute in the organic product and y, the concentration in the organic phase leaving stage i Corresponding values for the aqueous phase are denoted by Va, xa, xp and xt respectively...

The flow velocity is linearly dependent on the electric field strength applied (veo= peo , where peo denotes the electro osmotic mobility). In glass or fused silica, linear flow velocities of 100 pm/s to 1 mm/s can be achieved with field strengths in the order of several 100 V/cm. For a typical channel cross section of 10 5 cm2 (50 x 20 pm) this results in corresponding volume flowrates in the order of 100 pl/s to 1 nl/s. 

Since most continuous size analyzers require a constant volume flowrate, further subdivision is often necessary. Osborne s solution (Figure 1.35b) was to feed the sample stream to a well-agitated tank and withdraw a representative sample at a constant flow-rate. 

The measured process variables are T J 2 - passes temperatures m, m2 - volume flowrates of the two passes. 

The process model is represented by the heat transfer and the mixing process of the two heated parallel passes (figure 3). The input variables of the process are the thermal duties on the two parallel passes, Q-j-i, = 1, 2, and the associated volume flowrates, m, i =, 2. The mathematical model of the furnace is composed of the model associated to each coil and the model of the mixing node with temperature 7), ... 

American National Standards Institute. ISO 10780 1994, Stationary source emissions Measurement of velocity and volume flowrate of gas streams in ducts. Washington, DC American National Standards Institute, 2007. 

In the following analysis, it is assumed that the fluid and the particles are incompressible and that the volume flowrates, Qf and Qp, of the fluid and the particles are constant. 

As the equations indicate, volume flowrate changes by the square toot of the static pressure and is directly related to tte revolutions per minute (RPM). Static pressure changes... 

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