Residence time distribution in tubular flow vessels with multiple baffles Public Deposited

http://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/bk128g27k

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  • The residence time distribution in a tubular flow vessel with multiple baffles has been investigated. Length of sections between the baffles, orifice diameter to vessel diameter ratio, and the flow rates were varied, with the flow always in the laminar regime. Conductivity measurements, involving tracer impulse response, were used to evaluate the concentrations in three of the tubular vessels six sections. Laguerre polynomial approximation was used to smooth the time dependent concentration related curves. A dependency on the flow conditions in the previous sections was found for all twelve cases studied. Accordingly, the individual residence time distributions were dependent upon each other; hence the individual residence time distributions did not convolute to give an overall residence time distribution and large deviation from plug flow within the tubular vessel existed.
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