Technical Evaluation and Assessment of CNG/LPG Bi-Fuel and Flex-Fuel Vehicle Viability

doi:10.2172/10151317

Technical Evaluation and Assessment of CNG/LPG Bi-Fuel and Flex-Fuel Vehicle Viability

Research output: NREL › Technical Report

Abstract

This report compares vehicles using compressed natural gas (CNG), liquefied petroleum gas (LPG), and combinations of the two in bi-fuel or flex-fuel configurations. Evidence shows that environmental and energy advantages can be gained by replacing two-fuel CNG/gasoline vehicles with two-fuel or flex-fuel CNG/LPG vehicles. For two-fuel systems to be economically competitive, it is necessary todevelop a universal CNG/LPG pressure-regulator-injector and engine control module to switch from one tank to the other. For flex-fuel CNG/LPG designs, appropriate composition sensors, refueling pumps, fuel tanks, and vaporizers are necessary.

Original language	American English
Number of pages	66
DOIs	https://doi.org/10.2172/10151317
State	Published - 1994

Bibliographical note

Work performed by J. E. Sinor Consultants, Inc., Niwot, Colorado

NREL Publication Number

NREL/TP-425-6544

Keywords

bi-fuel vehicles
compressed natural gas (CNG)
flex-fuel vehicles
liquefied petroleum gas (LPG)

Access to Document

10.2172/10151317

https://www.nrel.gov/docs/legosti/old/6544.pdf

Cite this

@misc{73ae60f7fecc430ea7f9f802a237333b,

title = "Technical Evaluation and Assessment of CNG/LPG Bi-Fuel and Flex-Fuel Vehicle Viability",

abstract = "This report compares vehicles using compressed natural gas (CNG), liquefied petroleum gas (LPG), and combinations of the two in bi-fuel or flex-fuel configurations. Evidence shows that environmental and energy advantages can be gained by replacing two-fuel CNG/gasoline vehicles with two-fuel or flex-fuel CNG/LPG vehicles. For two-fuel systems to be economically competitive, it is necessary todevelop a universal CNG/LPG pressure-regulator-injector and engine control module to switch from one tank to the other. For flex-fuel CNG/LPG designs, appropriate composition sensors, refueling pumps, fuel tanks, and vaporizers are necessary.",

keywords = "bi-fuel vehicles, compressed natural gas (CNG), flex-fuel vehicles, liquefied petroleum gas (LPG)",

author = "NREL",

note = "Work performed by J. E. Sinor Consultants, Inc., Niwot, Colorado",

year = "1994",

doi = "10.2172/10151317",

language = "American English",

type = "Other",

}

TY - GEN

T1 - Technical Evaluation and Assessment of CNG/LPG Bi-Fuel and Flex-Fuel Vehicle Viability

AU - NREL, null

N1 - Work performed by J. E. Sinor Consultants, Inc., Niwot, Colorado

PY - 1994

Y1 - 1994

N2 - This report compares vehicles using compressed natural gas (CNG), liquefied petroleum gas (LPG), and combinations of the two in bi-fuel or flex-fuel configurations. Evidence shows that environmental and energy advantages can be gained by replacing two-fuel CNG/gasoline vehicles with two-fuel or flex-fuel CNG/LPG vehicles. For two-fuel systems to be economically competitive, it is necessary todevelop a universal CNG/LPG pressure-regulator-injector and engine control module to switch from one tank to the other. For flex-fuel CNG/LPG designs, appropriate composition sensors, refueling pumps, fuel tanks, and vaporizers are necessary.

AB - This report compares vehicles using compressed natural gas (CNG), liquefied petroleum gas (LPG), and combinations of the two in bi-fuel or flex-fuel configurations. Evidence shows that environmental and energy advantages can be gained by replacing two-fuel CNG/gasoline vehicles with two-fuel or flex-fuel CNG/LPG vehicles. For two-fuel systems to be economically competitive, it is necessary todevelop a universal CNG/LPG pressure-regulator-injector and engine control module to switch from one tank to the other. For flex-fuel CNG/LPG designs, appropriate composition sensors, refueling pumps, fuel tanks, and vaporizers are necessary.

KW - bi-fuel vehicles

KW - compressed natural gas (CNG)

KW - flex-fuel vehicles

KW - liquefied petroleum gas (LPG)

U2 - 10.2172/10151317

DO - 10.2172/10151317

M3 - Technical Report

ER -

Technical Evaluation and Assessment of CNG/LPG Bi-Fuel and Flex-Fuel Vehicle Viability

Abstract

Bibliographical note

NREL Publication Number

Keywords

Access to Document

Fingerprint

Cite this