The journey of a thousand miles, replacement fuels and FFVs
The headlines recently have been terrible — a commercial plane was shot down over the Ukraine, there’s war in the Middle East and more. It makes you wonder, over and over again, about man and woman’s inhumanity to his or her fellow men and women.
While certainly not equal in impact on the world at the present time, I happened to run across one point of light concerning a set of innovations which, in the long run, could positively impact climate change, security and consumer choice issues. It was reflected in a couple of articles describing the partnership between the state of California’s Energy Commission and Cummins Engines to develop an E85-fueled engine that apparently cuts Co2 by up to 80 percent (read it in Fleets and Fuels) in medium-duty trucks.
According to Cummins Engines and the Commission, a relatively small 4-cylinder, 2.8-liter engine has been successfully subjected to 1,000 miles and 1,500 hours of testing. It is now going through validation tests in Sacramento.
The story is a welcome one. Cummins indicates that the engine can generate 250 horsepower and 450 pound-foot of torque using E85. “Using lignocellulosic-derived E85, the powertrain’s efficiency features 75 to 80 percent lower well-to-wheels carbon emissions than gas engines; depending on the drive cycle…Cellulosic E85 is not derived from tilling, fertilizing and harvesting corn…Using corn-derived E85, the high thermal efficiency and power-to-weight ratio of this engine results in 50 to 80 percent lower well-to-wheels carbon emissions compared with the gasoline engine.”
Based on the Cummins documentation, California’s Energy Commission indicates “that successful completion of the project may result in a new market for E85 fuel now dominated by gasoline and diesel in the 19,500 lb. step-van fleet market.” The agency estimates greenhouse-gas savings as great as 69 percent, or 10 to 20 percent using corn based ethanol.
Fortunately, the general principles guiding development of Cummins’ engine may help improve flex-fuel automobiles and grant Americans more confidence in the environmental, price and economic benefits associated with extended use of E85.
Lessons learned may increase the nation’s ability to reduce GHG emissions. Based on what Cummins has done, using smaller engines extends the benefit of E85. Diesel-like cylinder pressures are important. Ethanol’s high-octane rating generates more engine efficiency. Use of state-of-the art sensors for spark ignition and coordination of stop-and-start functions enhances efficiency and reduces emissions. E85 is clearly a safe fuel.
The knowledge gained from the Cummins effort could lead to better flex-fuel vehicles and could support the effort to use increased technology fixes for older, non-flex-fuel cars and FFV twins. Perhaps the biggest benefit from the partnership between California and Cummings relates to the boost it could give to the search for replacement fuels, as well as the myth-busting understanding it could provide consumers about the safety of E85. It is a safe fuel, assuming engine adaptation and software amendment.
Elon Musk’s proposal to share Tesla’s electric-car patents and ideas might at least encourage increased collaboration among FFV makers in Detroit and the potential players in the conversion industry that likely would emerge, subsequent to EPA testing and approval of older vehicles for conversion. Even improved cooperation at the margin would could expand production of new FFV vehicles and expand conversion of older vehicles. For automakers and makers of conversion kits, as well as developers of FFV software technology, successful collaboration would generate larger markets.
Increased use of E85 through conversion of existing cars and the increased production of new FFV vehicles would help meet national and local environmental objectives, reduce gasoline prices and provide consumers with lower fuel costs, apart from gasoline. Both would also reduce dependency on foreign oil. Paraphrasing the poet Robert Frost, while FFVs — new or converted — are on a road less traveled now, as John F. Kennedy indicated, the journey of a thousand miles must begin with one step. The road less traveled now has more replacement-fuel drivers and FFVs than ever. Because of this fact, the journey of a thousand miles toward alternative fuel choices has made progress and, hopefully soon, will move at a faster speed. Success will mean a better quality of life for us all. It’s good news!
Image credit: Wikimedia commons
