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The Effect of Cetane Number Increases Due to Additives on Nox Emissions from Heavy-Duty Highway Engines

By Environmental Protection Agency

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Book Id: WPLBN0000003772
Format Type: PDF eBook
File Size: 0.2 MB
Reproduction Date: 2007

Title: The Effect of Cetane Number Increases Due to Additives on Nox Emissions from Heavy-Duty Highway Engines  
Author: Environmental Protection Agency
Volume:
Language: English
Subject: Ecology, Natural resource issues, Environemtal protection
Collections: Environmental Awareness Library Collection
Historic
Publication Date:
Publisher: United States Environmental Protection Agency

Citation

APA MLA Chicago

Agency, E. P. (n.d.). The Effect of Cetane Number Increases Due to Additives on Nox Emissions from Heavy-Duty Highway Engines. Retrieved from http://www.nationalpubliclibrary.com/


Description
Excerpt: Abstract: This report presents a technical analysis of the NOx emissions impacts of increases in cetane number brought about through the use of diesel fuel additives. The purpose of this technical report is to provide information to parties who may be evaluating the value, effectiveness, and appropriateness of the use of cetane improver additives. It was originally provided to the public in draft form so that interested parties could comment on the methodology, assumptions, and conclusions. Where deemed appropriate, modifications were made to the report on the basis of those comments. This technical report is now being released in final form.

Table of Contents
Table of Contents Abstract . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . i I. Context . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 A. Nature and purpose of this technical report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 B. Public participation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 II. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 A. Background on cetane analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 B. Cetane number as an emission control strategy . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 III. Analytical approach . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 A. Database preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 1. Representativeness of fuels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 2. Representativeness of engines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 B. Summary of analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 IV. Conclusions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 A. SAS modeling results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 B. Confirmation of explanatory power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 C. Application to the in-use fleet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 D. Some predicted NOx impacts of additized cetane . . . . . . . . . . . . . . . . . . . . . . . . 31 Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

 

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