skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: A numerical investigation of the cooling effect of compressed natural gas throttling on engine delivery ratio

Abstract

A theoretical study was conducted to investigate the cooling effect of throttling compressed natural gas during the pressure regulation process. The concept of using this effect in cooling down the induction air was investigated. A thermodynamic model was developed for a typical fuel delivery system used on a vehicle fueled with compressed natural gas. The model was based on a set of integral conservation laws applied to each component of the fueling system. Several heat exchanging arrangements between the throttled gas and the inlet air were examined. The effect of the added heat exchanger on engine delivery ratio was examined for different engine sizes as well as for different operating conditions. An increase of 1 to 2.5% in engine delivery ratio was predicted due to the added heat exchanger.

Authors:
; ;  [1]
  1. West Virginia Univ., Morgantown, WV (United States). Dept. of Mechanical and Aerospace Engineering
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
346790
Resource Type:
Journal Article
Journal Name:
Journal of Engineering for Gas Turbines and Power
Additional Journal Information:
Journal Volume: 121; Journal Issue: 1; Other Information: PBD: Jan 1999
Country of Publication:
United States
Language:
English
Subject:
33 ADVANCED PROPULSION SYSTEMS; NATURAL GAS; PRESSURE REGULATORS; COOLING; FUEL-AIR RATIO; ENERGY EFFICIENCY

Citation Formats

Yacoub, Y, Marbun, L, and Bata, R. A numerical investigation of the cooling effect of compressed natural gas throttling on engine delivery ratio. United States: N. p., 1999. Web. doi:10.1115/1.2816298.
Yacoub, Y, Marbun, L, & Bata, R. A numerical investigation of the cooling effect of compressed natural gas throttling on engine delivery ratio. United States. https://doi.org/10.1115/1.2816298
Yacoub, Y, Marbun, L, and Bata, R. 1999. "A numerical investigation of the cooling effect of compressed natural gas throttling on engine delivery ratio". United States. https://doi.org/10.1115/1.2816298.
@article{osti_346790,
title = {A numerical investigation of the cooling effect of compressed natural gas throttling on engine delivery ratio},
author = {Yacoub, Y and Marbun, L and Bata, R},
abstractNote = {A theoretical study was conducted to investigate the cooling effect of throttling compressed natural gas during the pressure regulation process. The concept of using this effect in cooling down the induction air was investigated. A thermodynamic model was developed for a typical fuel delivery system used on a vehicle fueled with compressed natural gas. The model was based on a set of integral conservation laws applied to each component of the fueling system. Several heat exchanging arrangements between the throttled gas and the inlet air were examined. The effect of the added heat exchanger on engine delivery ratio was examined for different engine sizes as well as for different operating conditions. An increase of 1 to 2.5% in engine delivery ratio was predicted due to the added heat exchanger.},
doi = {10.1115/1.2816298},
url = {https://www.osti.gov/biblio/346790}, journal = {Journal of Engineering for Gas Turbines and Power},
number = 1,
volume = 121,
place = {United States},
year = {Fri Jan 01 00:00:00 EST 1999},
month = {Fri Jan 01 00:00:00 EST 1999}
}