Discharge plot

Fig. 2.39. Na /K+ atomic ratios of well discharges plotted at measured downhole temperatures. Curve A is the least squares fit of the data points above 80°C. Curve B is another emperical curve (from Truesdell, 1976). Curves C and D show the approximate locations of the low albite-microcline and high albite-sanidine lines derived from thermodynamic data (from Fournier, 1981). Small solid subaerial geothermal water Solid square Okinawa Jade Open square South Mariana Through Solid circle East Pacific Rise 11°N Open circle Mid Atlantic Ridge, TAG.

Fig. 11.20 Typical charge-discharge plot for the Li/VgOu cell (Abraham, Goldman and Dempsey, 1981).

PROPERTIES OF ELECTROCHEMICAL ENERGY STORERS 13.16.1. The Discharge Plot... 

The discharge plot is a plot of the potential available from a cell versus the time during which it discharges. In the following diagrams, ideal and real plots are given. The ideal plot is based on the assumption that the electrode and reactions each occur at the same steady rate until the material on the plates, placed there in the charging process, is exhausted. Then the potential drops to zero (see Fig. 13.36). 

When strongly correlated and reproducible, concentration versus discharge plots can be used to predict stream flow from stream chemistry and conversely. The plots also suggest that the heavy metal load of a given stream may be predictable from its specific conductance or discharge. When identified, such relationships can be useful for the monitoring and management of surface-water quality. 

Charge-discharge plot of PMT-AC hybrid solid electrolyte supercapacitor at different cycles (a) 1st, (b) 100th, (c) 200th,... 

Value of the discharge coefficient C for a Herschel-type venturi meter depends upon the Reynolds number and to a minor extent upon the size of the venturi, increasing with diameter. A plot of C versus pipe Reynolds number is given in ASME PTC, op. cit., p. 19. A value of 0.984 can be used for pipe Reynolds numbers larger than 200,000. 

To measure a residence-time distribution, a pulse of tagged feed is inserted into a continuous mill and the effluent is sampled on a schedule. If it is a dry miU, a soluble tracer such as salt or dye may be used and the samples analyzed conductimetricaUy or colorimetricaUy. If it is a wet mill, the tracer must be a solid of similar density to the ore. Materials hke copper concentrate, chrome brick, or barites have been used as tracers and analyzed by X-ray fluorescence. To plot results in log-normal coordinates, the concentration data must first be normalized from the form of Fig. 20-15 to the form of cumulative percent discharged, as in Fig. 20-16. For this, one must either know the total amount of pulse fed or determine it by a simple numerical integration... 

Cyclone Separator with Separate Catch Tank This type of blowdown system, shown in Fig. 26-17 and 26-18, is frequently used in chemical plants where plot pan space is hmited. The cyclone performs the vapor-liquid separation, while the catch tank accumulates the hquid from the cyclone. This arrangement allows location of the cyclone knockout drum close to the reactor so that the length of the relief device discharge hne can be minimized. The cyclone nas internals, vital to its proper operation, which will be discussed in the following sections. 

A compressor surges at certain conditions of low flow, and the compressor map, a plot of head versus flow, has a surge line defining the limits. Surge controls help the machine avoid surge by increasing flow. For an air compressor, a simple spill to the atmosphere is sufficient. For a hydrocarbon compressor, recirculation from discharge to suction is used. 

In Figure 12-70A (Mollier Diagram), plot vertically from hg (Step 9) to discharge pressure, pg. At this point, read discharge temperature, tg, following temperature lines. 

Plot hg (Step 3) at discharge pressure of 225 psia on ethylene Mollier Diagram read Tg = 235°F. 

By cross-plotting and interpolation, for 8,000 cfm at 20.7 psia discharge, and 80°F inlet temperature ... 

The Spencer blower in this example provides air to a drying process in a metal-coating line. Its configuration includes an end-suction inlet that is in-line with the shaft and a horizontal discharge that is perpendicular to the shaft. In this particular example, the source of the shaft deflection observed in the mode plot is aerodynamic instability. 

The discharge curve (Fig. 8) is another important feature of battery systems therefore the terminal voltage is plotted against the discharge capacity. For an ideal battery the terminal voltage drops to zero in a single step when the stored energy is completely consumed. 

These electrodes have been evaluated in lithium-polymer cells that operate at 85 °C [35]. Although the electrochemical discharge is not yet fully understood, differential capacity plots have shown evidence of two reversible ordering transitions and a kinetically slow phase transformation. 

Fig. 5. Arrhenius plots for para-hydrogen conversion on palladium wire catalysts. O, Phj = 1-2 mm Hg A, Ph. = 6.1 mm Hg , after the exposure of a wire to atomic hydrogen produced in rf discharges. Compiled after Couper and Eley (29).

In Figure 4.2, the mass flowrate is plotted as a function of cylinder pressure for discharge through an orifice to an atmosphere at a constant downstream pressure P — for... 

Values of Q and h are plotted in Figure 8.49 and the discharge at the point of intersection between the pump characteristic equation and the line of the above equation is 0.0054 m3/s. 

The rate of discharge of water from a tank is measured by means of a notch for which the flowrate is directly proportional to the height of liquid above the bottom of the notch. Calculate and plot the profile of the notch if the flowrate is 0.01 m3/s when the liquid level is 150 mm above the bottom of the notch. 

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