Paper Title:
A Simulation Study of Magnetostrictive Material Terfenol-D in Automotive CNG Fuel Injection Actuation
  Abstract

Magnetostriction is the deformation that spontaneously occurs in ferromagnetic materials when an external magnetic field is applied. In applications broadly defined for actuation, magnetostrictive material Terfenol-D (Tb0.3Dy0.7Fe1.9) possesses intrinsic rapid response times while providing small and accurate displacements and high-energy efficiency. These are some of the essential parameters required for fast control of fuel injector valves for decreased engine emissions and lower fuel consumption compared with the traditional solenoid fuel injection system. A prototype CNG fuel injector assembly was designed which included magnetostrictive material Terfenol-D as the actuator material. A 2D cross-sectional geometry of the injector assembly, which incorporated both linear and non-linear magnetic properties of the corresponding materials, was modeled in ANSYS for 2D axisymmetric magnetic simulation. Subsequently, a 3D replica of the CNG flow conduit was modeled in GAMBIT with the resultant injector lift. The meshed conduit was then simulated in FLUENT using the 3D time independent segregated solver with the Standard k  , the Realizable k   and RSM turbulence models to predict the mass flow rate of CNG to be injected. Eventually, the simulated flow rate was verified against mathematically derived static flow rate required for a standard automotive fuel injector considering standard horsepower, BSFC and injector duty cycle.

  Info
Periodical
Solid State Phenomena (Volume 154)
Edited by
Marcin Leonowicz and Dariusz Oleszak
Pages
41-46
DOI
10.4028/www.scientific.net/SSP.154.41
Citation
H.A. Chowdhury, S. A. Mazlan, A. G. Olabi, "A Simulation Study of Magnetostrictive Material Terfenol-D in Automotive CNG Fuel Injection Actuation", Solid State Phenomena, Vol. 154, pp. 41-46, 2009
Online since
April 2009
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Jun Fei Wu, Xin Zhou, Hao Zhang
Chapter 1: Material Science and Engineering
Abstract:The structure and operating principle of rolling movable teeth reducer are introduced in this paper. The model of roller movable teeth...
603
  | Authors: Ronny Yii Shi Chin, Shahrin Hisham Amirnordin, Amir Khalid
Chapter 4: Energy and Combustion
Abstract:The burner system is a patented, unique, higher-efficiency and fuel-injector system that works with a specially designed oil burner to create...
450
Authors: Zhong Jie Wang, Jue Ding, Pei Feng Weng
Chapter 5: Energy-Saving and Energy-Storage Technology
Abstract:Using alternative fuels is an effective way to reduce air pollution and transform energy structure. The characteristics of four kinds vehicle...
439