Presentation Profile

Measuring Apparent Viscosity at High-Temperature and High-Shear Rate (HTHS) by Multicell Capillary Viscometer

Main Author
Dr. Raj Shah - Koehler Instrument Company, Inc.

Additional Authors
  • Stefan Lim - Dept. Of Chemical Engineering, State univ. Of NY, Stony Brook
  • Minjee Kim - Dept. Of Chemical Engineering, State univ. Of NY, Stony Brook
  • Brian Bick - Dept. Of Chemical Engineering, State univ. Of NY, Stony Brook
  • Jacky Jiang - Dept. Of Chemical Engineering, State univ. Of NY, Stony Brook
  • Anson Law - Dept. Of Chemical Engineering, State univ. Of NY, Stony Brook
  • Sarjeel Zaman - Dept. Of Chemical Engineering, State univ. Of NY, Stony Brook
Abstract Number: 118
Abstract:

Apparent Viscosity a tHigh-Temperature High-Shear Rate (HTHS) is a viscosity measurement of engine oils using nitrogen gas to pressurize multicell capillaries at 150 C. The measured flow time of the oil and the pressure is used to compute itsviscosity and shear rate. This method is salient in various applications, especially in heavy duty engines where the oil undergoes harsh conditions. These specifications are of paramount importance for safety and optimal performance. Lowering HTHS viscosity ostensibly conforms more towards stringent Environmental Protection Agency (EPA) regulations by reducing greenhouse gas (GHG) emissions. In this poster, we will demonstrate the basic principles and functions of the novel HTHS instrument and discuss its importance.

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