Viscosity measurement of liquids at subambient temperatures

An apparatus and method is shown for determining the pumpability limit, freeze point and/or pour point of liquids, particularly fuels, at sub-ambient temperatures. A sample is placed in a viscometer which viscometer is rapidly cooled by a chiller. During cooling, after some measurements of temperatu...

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Hauptverfasser:	AIREY DANIEL ALFRED, MALAGUTI DAVID ANTHONY, URVANTSAU VIACHASLAU, SPINO LARRY ANGELO, CLERIS HERVE PHILIPPE
Format:	Patent
Sprache:	eng
Schlagworte:	INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TESTING
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creator	AIREY DANIEL ALFRED MALAGUTI DAVID ANTHONY URVANTSAU VIACHASLAU SPINO LARRY ANGELO CLERIS HERVE PHILIPPE
description	An apparatus and method is shown for determining the pumpability limit, freeze point and/or pour point of liquids, particularly fuels, at sub-ambient temperatures. A sample is placed in a viscometer which viscometer is rapidly cooled by a chiller. During cooling, after some measurements of temperature and viscosity, further temperatures and viscosity are approximated using the least squares method, which temperature and viscosity are subsequently measured to determine the pumpability limit. Continuation of the method will also give the freeze point and pour point of the sample being tested.
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subjects	INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TESTING
title	Viscosity measurement of liquids at subambient temperatures
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