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Laminar flow cabinets exist in both horizontal and vertical configurations, and there are many different types of cabinets with a variety of airflow patterns and acceptable uses. Cabinets may have a UV-C germicidal lamp to sterilize the interior and contents before use to prevent contamination of the experiment. Germicidal lamps are usually ...
However, self-adjusting cabinets should be cross-verified by calibrated instruments to ensure that performance is maintained to the correct levels. If the flow drops below desired performance, an audio and visual alarm will alert the operator. Changing the filter should be limited to trained persons as the filter is potentially contaminated.
Laminar flow hoods are used to exclude contaminants from sensitive processes in science, electronics and medicine. Air curtains are frequently used in commercial settings to keep heated or refrigerated air from passing through doorways. A laminar flow reactor (LFR) is a reactor that uses laminar flow to study chemical reactions and process ...
Downflow fume hoods are encountered more frequently in applications involving powders, [54] and are comparable to laminar flow cabinets. The laminar flow within these devices is easily disrupted, more so than traditional fume hoods, which can result in exposure to hazards within the hood. [55]
Depiction of how flow division and radial mixing can occur in a static mixer Flow division in a static mixer that uses baffles is a function of the number of elements in the mixer. In the housed-elements design the static mixer elements consist of a series of baffles made of metal or a variety of plastics. Similarly, the mixer housing can be ...
This turbulent boundary layer thickness formula assumes 1) the flow is turbulent right from the start of the boundary layer and 2) the turbulent boundary layer behaves in a geometrically similar manner (i.e. the velocity profiles are geometrically similar along the flow in the x-direction, differing only by stretching factors in and (,) [5 ...
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