Performance and Emissions of a DDC 8V-71 Engine Fueled with Cetane Improved Methanol

Urban, Charles M.; Timbario, Thomas J.; Bechtold, Richard L.

doi:10.4271/892064

Cited by 6 publications

(2 citation statements)

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“…These changes gave both good fuel economy and reduced emissions of NO x by 50%, considerably lowered particulates, and maintained levels of CO and hydrocarbon. New York has also modified a 8V-71 for use on Avocet-improved methanol and had similar results (67).…”

Section: Cetane Improversmentioning

confidence: 94%

Alcohol Fuels

Jackson¹,

Moyer²

2000

Kirk-Othmer Encyclopedia of Chemical Technology

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A wide variety of countries have, at various times, explored the use of either methanol or ethanol alcohol fuels as alternatives to diesel and gasoline fuels. Recently the United States has demonstrated light and heavy‐duty vehicles using alcohols but has not yet passed beyond the use of limited amounts of alcohols as gasoline components. The potential benefits of alcohol fuels include increased energy diversification accompanied by some energy security and balance of payments benefits, and air quality improvements. The Clean Air Act of 1990, emission standards set out by the State of California, and the 1992 Comprehensive National Energy Policy Act may serve to encourage the substantial use of alcohol fuels, unless gasoline and diesel technologies offer comparable advantages. Both methanol and ethanol have high octane values and allow high compression ratios providing increased efficiency and improved power output per cylinder. The properties of methanol and ethanol result in different vehicle fuel storage considerations. Unlike gasoline or diesel fuel, the vapor of methanol or ethanol above the liquid fuel in a fuel tank is usually combustible at ambient temperatures. This poses the risk of an explosion should a spark or flame find its way to the tank such as during refueling. The 85% methanol–15% gasoline fuel in use in California and elsewhere is commonly called M85. If methanol is to compete with conventional gasoline and diesel fuel it must be readily available and inexpensively produced. Thus methanol production from a low‐cost feedstock such as natural gas or coal is essential. Ethanol is primarily produced from a variety of crops and crop by‐products, generically called renewable biomass. In general, the low cost estimates for alcohol fuels indicate that methanol produced on a large scale from low cost natural gas could compete with gasoline when oil prices are around 14¢/L ($27/bbl). The future market response to new forms of emissions regulation is unknown. It is possible that the new emissions standards will simply result in improved gasoline technologies, and that the market result of the new standards will simply be cleaner gasolines. However, in 1990 the U.S. Alternative Fuels Council agreed on a goal of a 25% share of nonpetroleum transportation fuels by 2005. Alcohol fuels could capture a large part of this 25% share of nonpetroleum fuels.

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Section: Cetane Improversmentioning

confidence: 94%

Alcohol Fuels

Jackson¹,

Moyer²

2000

Kirk-Othmer Encyclopedia of Chemical Technology

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“…In the 1980s the Detroit Diesel Company (DDC) and MAN [197] produced modified versions of their compression-ignition engines which ran on 'ignition improved' methanol fuel (the ignition improver constituted about 5% by volume of the fuel). The MAN engine was a four-stroke engine using spark-assisted ignition whilst the DDC engines operated on the two-stroke cycle, controlling the scavenge ratio to assist ignition [198,199]. These engines ran in service in heavy-duty automotive applications [200].…”

Section: Conceptsmentioning

confidence: 99%

Methanol as a fuel for internal combustion engines

Verhelst

Turner

Sileghem

et al. 2019

Progress in Energy and Combustion Science

772

208

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Transportation of people and goods largely relies on the use of fossil hydrocarbons, contributing to global warming and problems with local air quality. There are a number of alternatives to fossil fuels that can avoid a net carbon emission and can also decrease pollutant emissions. However, many have significant difficulty in competing with fossil fuels due to either limited availability, limited energy density, high cost, or a combination of these. Methanol (CH 3 OH) is one of these alternatives, which was demonstrated in large fleet trials during the 1980s and 1990s, and is currently again being introduced in various places and applications. It can be produced from fossil fuels, but also from biomass and from renewable energy sources in carbon capture and utilization schemes. It can be used in pure form or as a blend component, in internal combustion engines (ICEs) or in direct methanol fuel cells (DMFCs). These features added to the fact it is a liquid fuel, making it an efficient way of storing and distributing energy, make it stand out as one of the most attractive scalable alternatives. This review focuses on the use of methanol as a pure fuel or blend component for ICEs. First, we introduce methanol historically, briefly introduce the various methods for its production, and summarize health and safety of using methanol as a fuel. Then, we focus on its use as a fuel for ICEs. The current data on the physical and chemical properties relevant for ICEs are reviewed, highlighting the differences with fuels such as ethanol and gasoline. These are then related to the research reported on the behaviour of methanol and methanol blends in spark ignition and compression ignition engines. Many of the properties of methanol that are significantly different from those of for example gasoline (such as its high heat of vaporization) lead to advantages as well as challenges. Both are extensively discussed. Methanol's performance, in terms of power output, peak and part load efficiency, and emissions formation is summarized, for so-called flex-fuel engines

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Renewable Fuels

Pearson¹,

Turner²

2012

Comprehensive Renewable Energy

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Performance and Emissions of a DDC 8V-71 Engine Fueled with Cetane Improved Methanol

Cited by 6 publications

References 1 publication

Alcohol Fuels

Alcohol Fuels

Methanol as a fuel for internal combustion engines

Renewable Fuels

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