I D
× COMMENTARYCOVER STORYIN THE NEWSNEWSFRONTSCHEMENTATOR + Show More
Chemical EngineeringChementator Briefs
Ethylene dichloride Recently, Chemetry (Moss Landing, Calif.; www.chemetrycorp.com) and Braskem…
BUSINESS NEWSTECHNICAL & PRACTICALFEATURE REPORTFACTS AT YOUR FINGERTIPSTECHNOLOGY PROFILEENGINEERING PRACTICEEQUIPMENT & SERVICESFOCUSNEW PRODUCTS + Show More

Comment PDF Processing & Handling

Facts at your Fingertips: Centrifuge Separation Capacity

By Scott Jenkins |

This one-page reference describes how to measure the capability of a given centrifuge to separate solids from a liquid phase. G-force The centrifugal force developed by a centrifuge is expressed as a multiple of the force of gravity. This force, known as the G-force, is proportional to the distance from the axis of rotation and the square of the rotational speed, as shown in Equation (1). G = 39.48 n 2 r / g                    (1) Where: G is the G force n  is the rotational speed, revolutions per second (rev/s) r  is the distance from the axis of rotation, cm g  is acceleration due to gravity, which has a conventional standard value of 981 cm/s2, but depends on altitude Equation (1) indicates the primary parameters available to designers to obtain the desired G-force — the diameter and rotor rotational speed. The G-force is not uniform throughout the centrifuge. The force is smallest near the axis of rotation, and then increases linearly in the radial direction. Typical G-forces developed by several types of centrifuges vary widely, ranging from a low of 600 × g for the single-chamber bowl centrifuge, to as high as 1,000,000 for the ultracentrifuge (Table 1). Values at the high end are sufficient to…
Related Content

Chemical Engineering publishes FREE eletters that bring our original content to our readers in an easily accessible email format about once a week.
Subscribe Now
The influence of IIoT in the dewatering process step of pigment production
The Big 6 level measurement technologies, where to use them and why
Top five technologies for drying in chemical applications
Crude distillation unit (CDU) optimization
Upstream Oil & Gas: Automation intelligence from wellhead to distribution

View More