A numerical investigation into the anomalous slight NOx increase when burning biodiesel; A new (old) theory

George Ban-Weiss; J. Y. Chen; B. B. Buchholz; Robert W. Dibble

A numerical investigation into the anomalous slight NO_x increase when burning biodiesel; A new (old) theory

George Ban-Weiss, J. Y. Chen, B. B. Buchholz, Robert W. Dibble

Research output: Contribution to journal › Conference article › peer-review

Abstract

Biodiesel is a notable alternative to diesel fuel because it comes from natural sources, is essentially CO₂ neutral, and it lowers an engine's emission of most pollutants as compared to No. 2 diesel. However, the use of biodiesel often slightly increases a diesel engine's emission of NO_x. Previously proposed theories for this slight NO_x increase are reviewed, including theories based biodiesel's cetane number, which leads to differing amounts of charge preheating, and theories based on the fuel's bulk modulus, which affects injection timing. A new theory explaining this NO_x increase was proposed; the increase in double bonds in biodiesel, compared to No. 2 diesel, increases its flame temperature, which in turn increases NO_x. NO_x was predominantly due to the Zeldovich mechanism. This is an abstract of a paper presented at the 231st ACS National Meeting (Atlanta, GA 3/26-30/2006).

Original language	English (US)
Journal	ACS National Meeting Book of Abstracts
Volume	231
State	Published - 2006
Externally published	Yes
Event	231th ACS National Meeting - Atlanta, GA, United States Duration: Mar 26 2006 → Mar 30 2006

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering

Cite this

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title = "A numerical investigation into the anomalous slight NOx increase when burning biodiesel; A new (old) theory",

abstract = "Biodiesel is a notable alternative to diesel fuel because it comes from natural sources, is essentially CO2 neutral, and it lowers an engine's emission of most pollutants as compared to No. 2 diesel. However, the use of biodiesel often slightly increases a diesel engine's emission of NOx. Previously proposed theories for this slight NOx increase are reviewed, including theories based biodiesel's cetane number, which leads to differing amounts of charge preheating, and theories based on the fuel's bulk modulus, which affects injection timing. A new theory explaining this NOx increase was proposed; the increase in double bonds in biodiesel, compared to No. 2 diesel, increases its flame temperature, which in turn increases NOx. NOx was predominantly due to the Zeldovich mechanism. This is an abstract of a paper presented at the 231st ACS National Meeting (Atlanta, GA 3/26-30/2006).",

author = "George Ban-Weiss and Chen, {J. Y.} and Buchholz, {B. B.} and Dibble, {Robert W.}",

year = "2006",

language = "English (US)",

volume = "231",

journal = "ACS National Meeting Book of Abstracts",

issn = "0065-7727",

publisher = "American Chemical Society",

note = "231th ACS National Meeting ; Conference date: 26-03-2006 Through 30-03-2006",

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TY - JOUR

T1 - A numerical investigation into the anomalous slight NOx increase when burning biodiesel; A new (old) theory

AU - Ban-Weiss, George

AU - Chen, J. Y.

AU - Buchholz, B. B.

AU - Dibble, Robert W.

PY - 2006

Y1 - 2006

N2 - Biodiesel is a notable alternative to diesel fuel because it comes from natural sources, is essentially CO2 neutral, and it lowers an engine's emission of most pollutants as compared to No. 2 diesel. However, the use of biodiesel often slightly increases a diesel engine's emission of NOx. Previously proposed theories for this slight NOx increase are reviewed, including theories based biodiesel's cetane number, which leads to differing amounts of charge preheating, and theories based on the fuel's bulk modulus, which affects injection timing. A new theory explaining this NOx increase was proposed; the increase in double bonds in biodiesel, compared to No. 2 diesel, increases its flame temperature, which in turn increases NOx. NOx was predominantly due to the Zeldovich mechanism. This is an abstract of a paper presented at the 231st ACS National Meeting (Atlanta, GA 3/26-30/2006).

AB - Biodiesel is a notable alternative to diesel fuel because it comes from natural sources, is essentially CO2 neutral, and it lowers an engine's emission of most pollutants as compared to No. 2 diesel. However, the use of biodiesel often slightly increases a diesel engine's emission of NOx. Previously proposed theories for this slight NOx increase are reviewed, including theories based biodiesel's cetane number, which leads to differing amounts of charge preheating, and theories based on the fuel's bulk modulus, which affects injection timing. A new theory explaining this NOx increase was proposed; the increase in double bonds in biodiesel, compared to No. 2 diesel, increases its flame temperature, which in turn increases NOx. NOx was predominantly due to the Zeldovich mechanism. This is an abstract of a paper presented at the 231st ACS National Meeting (Atlanta, GA 3/26-30/2006).

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M3 - Conference article

AN - SCOPUS:33745245067

SN - 0065-7727

VL - 231

JO - ACS National Meeting Book of Abstracts

JF - ACS National Meeting Book of Abstracts

T2 - 231th ACS National Meeting

Y2 - 26 March 2006 through 30 March 2006

ER -

A numerical investigation into the anomalous slight NO_x increase when burning biodiesel; A new (old) theory

Abstract

ASJC Scopus subject areas

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