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residence time |
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residence time [′rez·ə·dəns ‚tīm] (chemical engineering) The average length of time a particle of reactant spends within a process vessel or in contact with a catalyst. (nucleonics) The time during which radioactive material remains in the atmosphere following the detonation of a nuclear explosive; it is usually expressed as a half-time, since the time for all material to leave the atmosphere is not well known. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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The long residence time of melt in these systems often leads to troublesome deposits of degraded material. This new design is said to provide an increase in performance in the processes that require larger quantities of soft fillers, which have a low bulk density, require a longer residence time, as in reactive extrusion, or the efficiency required for the removal of high percentages of volatile components, such as solvents and monomers, according to the company. PROBLEMS--Changing production requirements often call for more efficient material handling and casting cooling, or more cooling residence time for larger castings. |
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