viscometer Articles

  • Development of low-cost rotational rheometer

    Liquids with non-Newtonian properties are presented in many engineering areas, as for example in membrane bioreactors where active sludge exhibits shear thinning properties. Therefore, the ability to determine the rheology's dependence on shear is important when optimising systems with such liquids. However, rheometers capable of determining the viscosity are often expensive and so a ...


    By IWA Publishing

  • Eliminate Degassing When Measuring Viscosity of Compressor Oils

    Compressor oils can create unique challenges when trying to measure viscosity. Dissolved gases from refrigerants, in particular, tend to bubble out when these oils are measured using traditional viscometers. This can create errors in the measurement, typically causing readings to be much lower than they should be. One way to get around this problem is to allow the oil ...


    By Spectro Scientific

  • Application notes - viscosity measurement

    Most laboratory viscometers employ the well-known principle of rotational viscometers to measure viscosity by sensing the torque required to rotate a spindle at a constant speed while it is immersed in the sample fluid. This is because the torque, generally measured using the reaction torque on the motor, is proportional to the viscous drag on the immersed spindle and thus the viscosity of the ...


    By Sensor Technology Ltd

  • A novel poly(acrylic acid-co-acrylamide)/diatomite composite flocculant with outstanding flocculation performance

    Series of anionic flocculants with outstanding flocculation performance, poly(acrylic acid-co-acrylamide)/diatomite composite flocculants (PAAD) were successfully prepared through aqueous solution copolymerization and applied to flocculate from oil-field fracturing waste-water. The structure of PAAD was characterized by Fourier transform infra-red spectroscopy , 13C nuclear magnetic resonance ...


    By IWA Publishing

  • In Situ Rheological Monitoring of Viscous Non-Newtonian Fluids using a Helical Ribbon Agitator

    Mechanically degraded food fluids were modelled as Power law fluids in a pilot scale (42 l) helical ribbon agitation vessel. Effective rheological representative flow curves determined from speed/torque data proved comparable to off-line laboratory rheometer measured data. Modelling effective viscosity as a Power law function gave effective consistency coefficient Keff which correlated strongly ...


    By Sensor Technology Ltd

  • Portable oil analysis solutions empower ship maintainers to act fast in preventing failure - Case study

    Marine operators have known why oil analysis is a critical part of a good maintenance program for quite some time, and they practice it with combinations of onboard test kits and shoreside analysis laboratories commonly provided by the lubricant supplier. Slow steaming, long component lead times, constant switchovers from HFO to lowsulfur fuel, and high and low BN lubricants means having an ...


    By Spectro Scientific

  • Cutters cut costs with oil analysis - Case Study

    Oil analysis plays a critical role in the mission readiness of the United States Coast Guard’s fast response cutters and national security cutters by alerting engineers to problems that have the potential to damage vital equipment and help them efficiently deploy resources for critical maintenance activities. The traditional approach to oil analysis is to ship samples to a central ...


    By Spectro Scientific

  • Slick performer - Portable oil analysis solutions empower ship maintainers to act fast in preventing failure

    Marine operators have known why oil analysis is a critical part of a good maintenance program for quite some time, and they practice it with combinations of onboard test kits and shoreside analysis laboratories commonly provided by the lubricant supplier. Slow steaming, long component lead times, constant switchovers from HFO to lowsulfur fuel, and high and low BN lubricants means having an ...


    By Spectro Scientific

  • Using portable oil analysis on USNS Watson - Case Study

    Save 15 Hours per Week and Improve Accuracy on Navy Sealift Ship The United States Naval Ship (USNS) Watson is one of the large, medium-speed, roll-on, roll-off (LMSR) ships that have signi  cantly expanded the nation’s sealift capacity. The Watson has a considerable amount of machinery including main engines, generators and cranes that need oil tested on a regular basis to ...


    By Spectro Scientific

  • Naval sealift ship puts accuracy to the test - Case Study

    The United States Naval Ship (USNS) Watson is one of the large, medium-speed, roll-on, roll-off ships that have significantly expanded the nation’s sealift capacity. The Watson has a considerable amount of machinery, including main engines, generators and cranes, that need oil tested on a regular basis to detect potential problems and eliminate the possibility of a catastrophic failure. ...


    By Spectro Scientific

  • Oil Analysis Helps Keep the Trains Running - Case study

    Based in Tullow, Ireland, T.E. Laboratories ("the Laboratories"), provides oil, fuel and environmental analysis services for a variety of customers, including Irish Rail, Ireland's national railway system. It regularly uses equipment from Spectro, Inc., including the Spectroil Q100 spectrometer. When the analysis of oil samples from a main locomotive showed a large amount of severe wear ...


    By Spectro Scientific

  • United States Coast Guard (USCG) Implements Handheld Technology for Onboard Oil Testing in New Cutters - Case Study

    With a motto of “Always Ready,” the United States Coast Guard (USCG) has 11 missions specified by law including drug and migrant interdiction; ports, waterways and coastal security; fishery patrols; search and rescue; and national defense. The USCG’s newest ships include 22 Fast Response Cutters (FRCs) which recently entered service, and 36 more are currently on order. ...


    By Spectro Scientific

  • Paste thickener bed level measurement

    Numerous studies and papers have been devoted to the subject of thickener design and operation to achieve specified throughput and discharge densities. Mathematical models have been developed that present methods for sizing thickeners and predicting performance under varying process conditions. The compression effect of deeper beds on dewatering performance is a recognized phenomenon. This is one ...


    By WesTech Engineering, Inc.

  • Bed Level Measurement

    Numerous studies and papers have been devoted to the subject of thickener design and operation to achieve specified throughput and discharge densities. Mathematical models have been developed that present methods for sizing thickeners and predicting performance under varying process conditions. The compression effect of deeper beds on dewatering performance is a recognized phenomenon. This is one ...


    By WesTech Engineering, Inc.

  • Testing Validates Environmentally Friendly Hydraulic Fluids

    Operators seeking next-generation hydraulic fluids typically expect to find products with a low-impact environmental footprint that meets both current and future regulations without skimping on the high-performance requirements some systems need. As a possible solution, EnBio Industries offers its EnBio fluids, a polyalkylene glycol-based lubricant with five characteristics that ...


    By EnBio Industries

  • Analyzing Lubricant and Machinery Condition Using Q5800 Portable Oil Analysis Lab - Case study

    Overview The United States Marine Corps (USMCJ maintains a fleet of thousands of mechanized vehicles consisting of heavy equipment ranging from bulldozers to transport vehicles and armored vehicles. A decade ago, they participated in an oil analysis program as a means to determine lubricant and machinery condition with emphasis on reducing operating costs and improved equipment readiness. ...


    By Spectro Scientific

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