Wednesday, November 3, 2010

Ethanol, Why Brazil and Not the United States ….Yet?


By Daniela Sciaky, Ph.D.

Ethanol as a transportation fuel can be a dirty word in the United States when it comes to fuel efficiency. The energy content of ethanol is less than gasoline resulting in lower gas mileage. However ethanol has a higher octane rating than gasoline and if engines are tuned to use ethanol then much better performance is delivered by the use of ethanol.

What technology is available to take into account ethanol’s advantage? Sturman Industries hosted a technology summit in late October that brought the renewable fuel industry together with engine designers. Sturman proposed to replace the camshaft-controlled valves traditionally found in internal combustion engines with computer-controlled valves whose performance can be adjusted on the fly. This technology results in maximizing the performance of any fuel used by the engine.

Scania, a European engine and vehicle manufacturer, has pioneered many efforts to develop engines for ethanol and other renewable fuel powered vehicles. In October the company was awarded a 3.3 million EUR grant by the Strategic Vehicle Research and Innovation Initiative in Sweden to develop an engine for heavy commercial vehicles capable of running on biofuels. The company will focus on developing technology for both alcohol and methane gas-based fuels.

However, in case people haven’t noticed Kia Motors just unveiled the Kia Soul Flex, a car that can run on 100% ethanol, 100% gasoline or an ethanol-gasoline mixture. According to Kia the Soul Flex exhibits a 44% improvement in fuel efficiency. Power and torque are also improved compared to the existing gasoline model. The Soul Flex has a newly adapted fuel injection and catalyst system as well as a fuel tank assistance system that aids engine ignition at low temperatures. Unfortunately for the US, the car is only being introduced to Brazil.

Acceptance of ethanol in the US is still a long way off. Brazil, because of its adoption of alternative fuels has become a magnet for the adoption of new technologies that are still in the proposal/testing stages in the US. Ethanol will fail to reach its full potential in the US unless these innovative technologies are also adopted in the US.

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