ClearSign Reaches Development Milestone, Demonstrates Technique to Provide Unprecedented Flame Stability up to 400,000

Tue Jun 19, 2012 9:15am EDT

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  SEATTLE, WA, Jun 19 (Marketwire) -- 
ClearSign Combustion Corporation (NASDAQ: CLIR), an emerging leader in
combustion and emissions control technology for industrial, commercial
and utility markets, reported today that it has successfully demonstrated
its proprietary Electrodynamic Combustion Control(TM) (ECC(TM))
technology operating in a system with a thermal output of more than
400,000 Btus per hour.

    According to Joe Colannino, the company's Chief Technology Officer, the
demonstration represents a key milestone in the path to commercializing
the company's technology.

    "We have exceeded our goal of 250,000 Btu/hr for the current quarter and
moved closer to our key commercialization milestone of one million
Btu/hour which continues to be our target for the end of this year. 

    "The purpose of this demonstration was to show that a flame can be
stabilized and anchored at a selected location by using ClearSign's ECC
technology to dramatically accelerate the rate of combustion," said
Colannino. "We believe that this technique will allow us to reduce
emissions of Nitrogen Oxides (NOx) to very low levels while at the same
time radically simplifying burner design. Improved flame stability is
also commercially very significant because it can translate directly to
significant savings in fuel consumption for many industrial scale

    The company says that its technology can be used to anchor a flame to
virtually any designated location above the gas nozzle, even with the
fuel moving at a very high velocity. This is significant because normally
a flame (even under turbulent conditions) cannot burn fast enough to
counter the force of the gas jet.

    ClearSign CEO, Rick Rutkowski, says this effect is unique and
unprecedented. "The only way to burn back against this high velocity gas
jet is to actually increase the reaction rates. The flame is able to
stabilize because it is now burning at a speed that more closely matches
that of the gas jet.

    "Our commercial goal is to enable a whole range of proprietary combustion
solutions based on this technique. We believe that there are numerous
"high value" commercial and industrial applications where the ability to
accelerate and control the rate of combustion can be translated to
significant design improvements and substantial savings in both capital
and operating costs for users."

    "News of this development should be very well received by prospective
customers and partners," added Rutkowski. "We have generated substantial
interest among prospective launch customers, as well as with several
leading combustion system OEMs and engineering and construction firms. 

    "We believe that our technology is a powerful tool that our customers
will be able to use to reverse the trend of rapidly escalating costs in
complying with air quality regulations," Rutkowski said. 

    "We believe that ECC offers the potential to dramatically reduce the high
recurring cost associated with control of NOx emissions and will feature
a much lower total cost of ownership than current generation technology.
These are well known problems and costs that have defied a solution for a
long time. I think the market is going to welcome this development."

    According to the company, improved flame stability is just one of several
powerful combustion control effects enabled by ECC technology. The
technology can also be used to improve control of flame shape, to reduce
or eliminate emissions of multiple pollutants including particulate, NOx
and CO (Carbon Monoxide) and to improve both heat transfer efficiency and
heat distribution. Each of these effects has significant commercial
implications independently and can be combined in many cases to yield
even more powerful advantages. The company will be conducting and
reporting on additional experiments on each of these effects at the newly
increased scale.

    "Our goal is to turn the economics of emissions control on its head,"
said Rutkowski. "We believe our technology will enable our customers to
reduce multiple types of emissions by suppressing them at the source and
at the same time, will increase system efficiency, throughput and overall
productivity. The ability to combine increased efficiency with emissions
control is unprecedented and, potentially, a sea change. We're talking
about a world where environmental compliance is no longer a cost but
instead a source of additional profit and return on invested capital.
That's great news for both industry and the environment."

    Last year, The McIlvaine Company estimated that global sales of air
pollution control equipment in 2011 were $42 billion. There are
approximately 163,000 boilers operating at the commercial and industrial
scale in the US.

    A video of this effect (filmed at 300,000 Btu/hr) may be viewed at the
ClearSign website:

    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(TM)
(ECC(TM)) 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

    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.



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