Floating Mode

Combined influence of both of the above factors significantly limits the performance and operation capability of the NiOx electrodes of agglomerate type in the asymmetric C/NiOx capacitors. Good initial performance may change for accelerated failure either in the floating mode or in heavy duty cycling mode of operation. 

The voltage drop of a charged capacitor in floating mode as a function of the time may be caused by different discharging mechanisms, which are the... 

Figure 5.50. Electrical connection schematics of EIS measurement, b Floating mode [54], (Reprinted from Journal of Power Sources, 161, Yuan XZ, Sun C, Wang H, Zhang J. AC impedance diagnosis of a 500 W PEM fuel cell stack part II individual cell impedance, 929-37, 2006, with permission from Elsevier.)...

The potentiostat on the carbon dioxide side is either left in a floating mode (E ) or set a some value positive (more oxidizing) than E. This potential is defined as E . The difference between these two potentials (E -E ) is called delta V in the table. 

As an alternative to a bipotentiostat, two separate potentiostats can be used to control two working electrodes. For conventional potentiostats, both working electrodes would be held at circuit common, which requires that one of the potentiostats be operated in a floating mode. With potentiostats that allow a floating working electrode, the circuit common can be shared at the reference electrode and no isolation is required. Whether to use a single bipotentiostat or dual potentiostats in a SECM experiment is up to... 

When a battery is operating in the floating mode, it must be protected from voltage hikes in the generator, which is from the possibility of overcharging (e.g., during idle... 

In floating mode, it is better to use VRLA (Valve Regulated Lead Acid) batteries where the reactions are water oxidation at the positive electrode and dioxygen reduction at the negative electrode. When a steady state is reached in an ideal VRLA battery, there is no mass consumption, which is not the case fora vented battery for which the floating mode leads to a continuous loss of water. 

AC output. A 42 to 48 V battery is connected to the output terminals of the DC-DC converter to provide additional power at the output terminals for motor start-ups and so on. During steady state, the DC-DC converter regulates its output to 50 V and the battery operates in a float mode. The fuel cell and the DC-DC converter are rated for steady-sfafe power (say 10 kW), while the DC-AC inverter section is rated to supply the motor-starting VA. The DC-DC boost converter is operated in current mode control. During a motor start-up operation, the current mode control goes into saturation and limits the maximum current supplied from the cell. During this time, the... 

In general, the end of charge of the battery can be determined when the charge voltage has reached the level discussed above for the various modes of serviee, and the on-eharge current has dropped to the approximate amounts shown in Table 45.4 (Eagle Richer Carefree Batteries). When the current has reached the value shown in the table, it ean be removed from the charge source or switched to the float mode. 

A layer of oil or paraffin wax is floated on top of the electrolyte to minimize heat and water losses. Cell voltages vary between 1.8 and 2.5 V. In one mode of operation (83) the electrolyte is circulated through the cell at a rate of about 3% of the total volume per minute with the solution usually being introduced at the bottom of the cell. The electrolyte is replenished every one to two hours by drawing off about 10—20% of the total electrolyte volume for treatment with MnCO or MnO, followed by filtration, and is then returned to the electrolysis cycle. 

Static bath mode. Feed enters at one end of the dmm and the floats exit from the other end. The sink product is removed continuously from the rotating dmm through the use of lifters attached to the dmm which empty into a launder as they move to the top. A modification of the simple dmm separator is the two-compartment dmm separator which allows a two-stage separation. In the cone-type separator (up to 6.1 m in dia and 450 t/h) feed is introduced at the top. The medium in the cone is kept in suspension by gentle agitation. The sink product is removed from the bottom of the cone either directly or by airlift in the center of the cone. The maximum particle size that can be separated is limited to 10 cm. Other separators include the Drewboy bath and the Norwaltbath (2). 

A mode curve exhibiting this shape could indicate that the motor mountings, or the baseplate under the motor, are loose and that the motor is moving vertically. In fact, in the example from which this figure was taken, this is exactly what was happening. The blower s baseplate floats on a one-inch thick cork pad, which is normally an acceptable practice. However, in this example, an inlet filter/silencer was mounted without support directly to the inlet located on the right end of the machine. The weight of the filter/silencer compressed the cork pad under the blower, which lifted the motor-end of the baseplate off of the cork pad. In this mode, the motor has complete freedom of movement in the vertical plane. In effect, it... 

Almost all fiber and partial titanium dioxide can be recovered from white water by DAF under full flow pressurization mode43 with chemical addition. On June 10, 1982, at Mead Corporation, pulp was prepared with 40% cotton fiber and 60% wood fiber. The loading of titanium dioxide was about 50% (i.e., 273 kg Ti02 per 600 kg total pulp). The white water from No. 2 machine was fed to a DAF cell (diameter = 3 m) at 15.8 L/s (250gal/min) under full flow pressurization mode. Turkey red oil (TRO) was dosed as a flotation aid at 80mL/min. The influent white water (before TRO addition), DAF effluent, and floated scum were sampled for analysis. The DAF influent had 98 mg/L of TSS, and 650 NTU of turbidity at pH 9.27. The DAF effluent had 15 mg/L TSS and 550 NTU of turbidity at pH 9.25. Although TSS (fiber and titanium dioxide) recovery rate was 85%, the ash content (titanium dioxide) of the recovered TSS was very low. Therefore, using a DAF clarifier under full flow pressurization mode and TREO, the majority of fibers in white water but only about half of titanium dioxide can be recovered. 

Mode >00125 is floating ERROR — Mode ODD is floating- ERROR — Mode >00155 is floating ERROR — Mode >00220 is floating ... 

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