Static collectors

For example SAPEC Oil Drum Skimmer, VIKOMA KEBAB Skimmer, etc. 

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The photoreactivity experiments were carried out by using compound parabolic collectors (CPC), installed at the Plataforma Solar de Almeria (PSA, Spain). CPCs are static collectors with a reflective surface formed by two connected parabolic mirrors with an absorber tube in the focus. They have no tracking system and their design allows the solar rays to be reflected onto the absorber tube, attaining a low concentration factor, defined as the ratio of the collector aperture to the absorber perimeter (it is usually 1-1.5 depending on the application). 

Conveyors and machinery, including pulleys, guards, and other metallic components, must be bonded and grounded to prevent static discharges. Belts should be made of a conductive material, have a conductive coating, or have a grounded static collector just beyond the point at which the belt leaves the pulley. 

Compound parabolic collectors (CPCs) belong to the most promising photocatalytic solar reactors which combine the advantages of parabolic trough concentrator and non-concentrating system [178]. CPCs are low-concentration static collectors with reflective surface and can be designed for any given reactor shape (see Fig. 7.3a) [182]. The CPC reflectors are usually made from polished aluminum... 

Negative ion generators use static charges to remove particles from the indoor air. When the particles become charged, they are attracted to surfaces such as walls, floors, table tops, draperies, and occupants. Some designs include collectors to... 

A projection of this point of collector effluent vertically downward shows that a second high efficiency centrifugal trill be less than 50% efficient. A wet collector, fabric arrester and electro-static precipitator will be not less than... 

Operation Concen- tration Particle Sizes COLLECTOR TYPES Cyclone High Eff. Centrif- ugal USED IN INDUSTRY Wet Fabric Collector Arrester Hi-Volt See Electro- Remark static No. ... 

To size the fan it is necessary to know the total air volume and the pressures in the system. These are calculated from the losses in the system on the longest or index leg, and begin with the hood. The hood entry loss can be expressed as 0.6 of the velocity head and is accurate enough for first estimates. The losses are then calculated on the velocities in the ducts. Each change of direction means a small loss in each length of duct. Added to the pressure drop loss across the collector and the outlet losses, these give the total static pressure required in the system. 

All MC-ICPMS instruments are equipped with a multiple Faraday collector array oriented perpendicular to the optic axis, enabling the simultaneous static or multi-static measurement of up to twelve ion beams. Most instruments use Faraday cups mounted on motorized detector carriers that can be adjusted independently to alter the mass dispersion and obtain coincident ion beams, as is the approach adopted for MC-TIMS measurement. However, some instruments instead employ a fixed collector array and zoom optics to achieve the required mass dispersion and peak coincidences (e.g., Belshaw et al. 1998). 

Multi-collection mass spectrometers can analyze isotope ratios in a static mode to eliminate the errors from beam instability. However, the static multi-collection method depends on the extent to which the collectors (e.g., Faraday cups) are identical and to the extent to which the gain of each collector is stable. An alternative approach is to use the so-called dynamic multi-collector mode, to cancel out beam instability, detector bias, and performing a power-law mass fractionation correction. The following descriptions are modified from the Finnigan MAT 262 Operating manual (Finnigan, 1992). 

The Sr/ Sr ratios of calcite and dolomite in 12 samples were determined after washing the samples with distilled water to remove the pore salts that result from drying. The calcite samples were then reacted with dilute acetic acid and the dolomite samples with 0.1 HCl, and analysed using an automated Finnigan 261 mass spectrometer equipped with nine Faraday collectors. All analyses were performed in the static multicollector mode using rhenium filaments. Correction for isotope fractionation during the analysis was made by normalization to Sr/ Sr = 0.1194. The mean standard error of mass spectrometer performance was 0.00003 forNBS-987. 

The collectors are 11-liter plastic buckets approximately 30 cm in diameter with a 6 mm O.D. plastic tube that is 1 -2 m long for sampling the accumulated gas. The buckets float on the surface of the water (Zimmerman, 1979) or positioned over small plants or in open water areas and also directly adjacent to plants that were too large (over 30 cm in diameter or height) to fit under the collector. At each site, four buckets were carefully positioned (with floats) on the water surface in order that the underlying sediment is not disturbed. Our portable static chamber method contrasts with the often used method of a permanently placed (i.e. one location) collar that penetrates the sediments and is left in place, but requires physical connection and seaUng of the above-water collector to the base before measurement. 

We will establish three internal structure physical models of wet centrifugal collector by Gambit 2.2 in this article, and then meshing. Solving three-dimensional velocity distribution, static pressure field distribution, turbulence characteristics of flow field of dust-laden air, the move track of different size of dust in the precipitator by Fluent 6.2. So as to choose optimal model. 

The application of forced airflow is necessary for drying products in static beds, which form a comparatively large flow resistance in the bed. Such products include grains and hay. One solution is to build a solar room dryer [13] as shown in Figure 14.7a. The grains to be dried are placed as a bed 1 on a perforated flooring. Collectors 2 are located on the southern wall and the roof of the building. The air warmed... 

Figure 14.7b shows the schematic construction of a solar rough fodder dryer [16]. The material is placed in a static bed 1. The collector system 2 is placed, as in Figure 14.7a, on the southern wall and the roof, but with airflow in the opposite direction. The collecting channel is placed at the bottom, joined to the housing of a fan 3. The fan is able to draw in outside air directly 4. For bad weather there is the... 

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