Читать книгу Agitator Design for Gas-Liquid Fermenters and Bioreactors - Gregory T. Benz - Страница 82

aInterfacial area/volumeklLiquid film coefficientklaOverall mass transfer coefficient (usually treated as one variable)DImpeller diameterHFractional gas holdupNShaft speedNaAeration NumberNCDShaft speed for complete dispersionNFlShaft speed for flooding emergenceNFrFroude numberNReReynolds numberOUROxygen uptake rate.PPower draw, generalPgGassed power drawPuUngassed power drawTTank diameterUsSuperficial gas velocityVgGas volumeVlLiquid VolumeZLiquid heightρLiquid density