Development of a Test Rig for Measuring Isentropic Bulk Modulus

Abstract

Bulk modulus is a measure a fluid's compressibility. In fuel systems, the bulk modulus of the fuel can have a significant impact on fuel behavior and performance in engines by affecting injection timing. While the behavior of most petroleum-derived fuels are well-understood, the emergence of new bio-based and synthetic fuels have demonstrated some properties that are beyond current experience. Therefore, as part of a complete fit-for-purpose analysis, the need for a bulk modulus test rig was identified. The objective of this effort was to design and build a test rig for measuring isentropic bulk modulus at pressures and temperatures up to 30,000 psi and 100 deg C, respectively. To-date, the measurement of high pressure/temperature speed-of-sound on several fluids has been successfully demonstrated. Plans are underway to incorporate a high pressure/temperature densitometer to improve the bulk modulus accuracy.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2013
Accession Number
ADA589020

Entities

People

  • Eric Sattler
  • Nick C. Johnson
  • Patsy Muzzell
  • Scott A. Hutzler

Organizations

  • Southwest Research Institute

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Accuracy
  • Acoustic Signals
  • Alkanes
  • Bulk Modulus
  • Compressive Properties
  • Densitometers
  • Fuel Systems
  • Fuels
  • High Pressure
  • High Temperature
  • Instrumentation
  • Measurement
  • Petroleum
  • Pressure Measurement
  • Research Facilities
  • Synthetic Fuels
  • United States Government

Readers

  • Fluid Dynamics.
  • Pavement Materials Engineering.
  • Petroleum Engineering