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A continuous disc stack centrifuge is operated at 5000rpm for separation of bakers' yeast. At feed rate of -1 601min, 50% of the cells are recovered. For operation at constant centrifuge speed, solids recovery is inversely proportional to the flow rate. (a) What flow rate is required to achieve 90% cell recovery if the centrifuge speed is maintained at 5000rpm ? b) What operating speed is required to achieve 90% recovery at a feed rate of 601min -1 ? A continuous disc stack centrifuge is operated at 5000 rpm for separation of bakers' yeast. At a feed rate of 601 min, 50% of the cells are recovered. For operation at constant centrifuge speed, solids recovery is inversely proportional to the flow rate. (a) What flow rate is required to achieve 90% cell recovery if the centrifuge speed is maintained at 5000 rpm? b) What operating speed is required to achieve 90% recovery at a feed rate of 60 1 min¯¹?

A continuous disc stack centrifuge is operated at 5000rpm for separation of bakers' yeast. At feed rate of -1 601min, 50% of the cells are recovered. For operation at constant centrifuge speed, solids recovery is inversely proportional to the flow rate. (a) What flow rate is required to achieve 90% cell recovery if the centrifuge speed is maintained at 5000rpm ? b) What operating speed is required to achieve 90% recovery at a feed rate of 601min -1 ? A continuous disc stack centrifuge is operated at 5000 rpm for separation of bakers' yeast. At a feed rate of 601 min, 50% of the cells are recovered. For operation at constant centrifuge speed, solids recovery is inversely proportional to the flow rate. (a) What flow rate is required to achieve 90% cell recovery if the centrifuge speed is maintained at 5000 rpm? b) What operating speed is required to achieve 90% recovery at a feed rate of 60 1 min¯¹?

ENGR.ECONOMIC ANALYSIS
ENGR.ECONOMIC ANALYSIS
14th Edition
ISBN:9780190931919
Author:NEWNAN
Publisher:NEWNAN
Chapter1: Making Economics Decisions
Section: Chapter Questions
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A continuous disc stack centrifuge is operated at 5000rpm for separation of bakers' yeast. At feed rate of -1 601min, 50% of the cells are recovered. For operation at constant centrifuge speed, solids recovery is inversely proportional to the flow rate. (a) What flow rate is required to achieve 90% cell recovery if the centrifuge speed is maintained at 5000rpm ? b) What operating speed is required to achieve 90% recovery at a feed rate of 601min -1 ? A continuous disc stack centrifuge is operated at 5000 rpm for separation of bakers' yeast. At a feed rate of 601 min, 50% of the cells are recovered. For operation at constant centrifuge speed, solids recovery is inversely proportional to the flow rate. (a) What flow rate is required to achieve 90% cell recovery if the centrifuge speed is maintained at 5000 rpm? b) What operating speed is required to achieve 90% recovery at a feed rate of 60 1 min¯¹?
Transcribed Image Text:A continuous disc stack centrifuge is operated at 5000rpm for separation of bakers' yeast. At feed rate of -1 601min, 50% of the cells are recovered. For operation at constant centrifuge speed, solids recovery is inversely proportional to the flow rate. (a) What flow rate is required to achieve 90% cell recovery if the centrifuge speed is maintained at 5000rpm ? b) What operating speed is required to achieve 90% recovery at a feed rate of 601min -1 ? A continuous disc stack centrifuge is operated at 5000 rpm for separation of bakers' yeast. At a feed rate of 601 min, 50% of the cells are recovered. For operation at constant centrifuge speed, solids recovery is inversely proportional to the flow rate. (a) What flow rate is required to achieve 90% cell recovery if the centrifuge speed is maintained at 5000 rpm? b) What operating speed is required to achieve 90% recovery at a feed rate of 60 1 min¯¹?
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