Joe Colannino, ClearSign's Chief Technology Officer points out that the complex chemical makeup of solid fuels is compounded because both their physical and chemical composition are not only diverse but extremely variable. The chemistry of one type or rank of coal will be very different from another, but waste fuels vary even more and can include a range of materials in pieces that are also non-uniform in size and shape.
"As if that isn't complex enough," Colannino says, "fuel also tends not to be deposited very uniformly on the moving grate in a stoker, which further adds to the problem."
According to Colannino ClearSign has previously demonstrated at a smaller scale, a number of features using ECC technology with a variety of types of solid fuels including biomass, coal and tire-derived-fuel (TDF).
"We've shown dramatic reductions of particulate matter, CO, and total hydrocarbons. We have also used shaped electrodes to shape and shorten flames at a larger scale. These experiments were also done using methane and propane, and repeated with a low momentum flame type similar to those found in many industrial solid fuel combustion systems. As importantly, we have conducted numerous experiments, also using natural gas and propane, in which flame speed appears to be dramatically increased. We believe that this ability to increase flame speed may prove to very important for solid fuel combustion, because solid fuels actually burn in two phases with the gases from organic compounds burning at a much faster rate than the solid 'char' component of the fuel."
"Our goal over the next several quarters," he continued, "is to replicate, demonstrate and quantify the full range of these effects in our new solid-fuel system at an industrial-scale using a variety of solid fuels including biomass and other waste fuels as well as coal."
According to the company, the new test platform is a continuously-fed stationary grate furnace with heat release flux capacity of up to1MMBtu/ft2 grate area. It is under-air fired to resemble those found throughout the world in many coal, biomass, and MSW systems. The furnace is even equipped with overfire air ports to accurately simulate typical legacy NOx control for large-scale units. Colannino says that this attention to detail should enable his team to replicate the performance of existing units as a baseline and to quantify the significant improvement that they are aiming for with ECC technology.
The company says that it plans to test a number of parameters using state of the art analytical equipment, including continuous emissions monitoring for NOx, CO, O2, and CO2, as well as for total hydrocarbons, particulate matter, and SO2.
For more information on ClearSign including the new solid-fuel test platform, please visit us on the web at www.clearsign.com
About ClearSign Combustion Corporation
ClearSign Combustion Corporation designs and develops technologies that aim to improve key performance characteristics of combustion systems including energy efficiency, emissions control, fuel flexibility and overall cost effectiveness. Our Electrodynamic Combustion Control (ECC) platform technology improves control of flame shape and heat transfer and optimizes the complex chemical reactions that occur during combustion in order to minimize harmful emissions. For more information about the Company, please visit www.clearsign.com
Cautionary note on forward-looking statements
This press release includes forward-looking information and statements within the meaning of the Private Securities Litigation Reform Act of 1995 and the provisions of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. Except for historical information contained in this release, statements in this release may constitute forward-looking statements regarding our assumptions, projections, expectations, targets, intentions or beliefs about future events that are based on management's belief, as well as assumptions made by, and information currently available to, management. While we believe that our expectations are based upon reasonable assumptions, there can be no assurances that our goals and strategy will be realized. Numerous factors, including risks and uncertainties, may affect our actual results and may cause results to differ materially from those expressed in forward-looking statements made by us or on our behalf. Some of these factors include the acceptance of existing and future products, the impact of competitive products and pricing, general business and economic conditions, and other factors detailed in our Quarterly Report on Form 10-Q and other periodic reports filed with the SEC. We specifically disclaim any obligation to update or revise any forward-looking statement whether as a result of new information, future developments or otherwise.
Dennis S. Dobson, Jr.
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