ClearSign Technologies Corporation Debuts New ClearSign Core™ M Series Process Burner Technology at Global Chemical Company in Texas

Technology Demonstrates Superior NOx and Efficiency Performance , /PRNewswire/ -- ClearSign Technologies Corporation (Nasdaq: CLIR) ("ClearSign" or the "Company"), an emerging leader in industrial combustion and sensing technologies that support decarbonization, improve operational and energy efficiency, enable the use of hydrogen as a fuel and enhance safety while dramatically reducing emissions, announces that following the installation of a new burner technology into the Texas Gulf coast facility of a global chemical company, the Company is reporting selective catalytic reduction ("SCR") level nitrogen oxide ("NOx") emissions in addition to high heat transfer efficiency within the heater. The new burner technology, the first of this new "M" series, will be marketed as ClearSign Core™ M1. "Over the past two weeks we have started up and run the first installation of a distinctly new burner technology branded as ClearSign Core™ M1. This new technology originated from reimagining the flow paths of fuel, air and flue gases within a burner and is the product of our internal computational fluid dynamics modelling led by our Chief Technology Officer, Matthew Martin," said Jim Deller, Ph.D., Chief Executive Officer of ClearSign. "The newly installed burner has demonstrated combined NOx and efficiency capabilities that outperform all burner technology that we are aware of, including our own. For instance, our own measurements indicated that this burner technology achieved sub 2ppm NOx with under 15% excess air suggesting an efficiency improvement of approximately 3% compared to other sub 10ppm NOx burners available on the market today. We believe it is a remarkable accomplishment to achieve these results in a first article burner taken directly from computational modelling and into field operations. We would like to thank both of our Gulf Coast customer and heater manufacturer Tulsa Heaters Midstream, for their support and for enabling the demonstration of this project." "We pride ourselves in providing state of the art heaters to our customers. We were pleased to work with ClearSign, and to be part of bringing this new burner technology to market and showing the combined performance of these burners in our heater," said Justin Forth, President of Tulsa Heaters Midstream. "We believe that technology like this allows up to push the boundaries of clean technology, and enables us to deliver better products to our customers." "We have seen notable engagement in this horizontally fired process heater segment and this new technology was configured specifically for that market. We have been able to share and discuss these results with interested parties and have had a positive response. While initially designed for the horizontal fired market, we believe that this advanced technology is well suited for other applications, including boilers," concluded Dr. Deller. The new burner, branded as the ClearSign Core™ M1, was installed on a demonstration basis into a horizontally fired process heater built by Tulsa Heaters Midstream and will remain in commercial operation following this successful startup and performance results. Tulsa Heaters Midstream is a fast growing and innovative heater provider based in Tulsa, Oklahoma and engaged with ClearSign to facilitate the demonstration of this new burner technology. About ClearSign Technologies Corporation ClearSign Technologies Corporation designs and develops products and technologies for the purpose of decarbonization and improving key performance characteristics of industrial and commercial systems, including operational performance, energy efficiency, emission reduction, safety, the use of hydrogen as a fuel and overall cost-effectiveness. Our patented technologies, embedded in established OEM products as ClearSign Core™ and ClearSign Eye™ and other sensing configurations, enhance the performance of combustion systems and fuel safety systems in a broad range of markets, including the energy (upstream oil production and down-stream refining), commercial/industrial boiler, chemical, petrochemical, transport and power industries. For more information, please visit www.clearsign.com. Cautionary note on forward-looking statements All statements in this press release that are not based on historical fact are "forward-looking statements." You can find many (but not all) of these statements by looking for words such as "approximates," "believes," "hopes," "expects," "anticipates," "estimates," "projects," "intends," "plans," "would," "should," "could," "may," "will" or other similar expressions. While management has based any forward-looking statements included in this press release on its current expectations on the Company's strategy, plans, intentions, performance, or future occurrences or results, the information on which such expectations were based may change. These forward-looking statements rely on a number of assumptions concerning future events and are subject to a number of risks, uncertainties and other factors, many of which are outside of the Company's control, which could cause actual results to materially differ from such statements. Such risks, uncertainties and other factors include, but are not limited to: the performance of the Company's burners, including related fuel and electricity savings and its ability to lower NOx emissions; the Company's ability to accelerate development timelines of new burner technologies while minimizing overall costs through the use of its computer modeling techniques; the performance of the ClearSign Core™ M1 and its ability to outperform other burner technologies currently available in the market; the Company's ability to leverage the positive results of its installed ClearSign Core™ M1 into additional sales in the horizontally fired process heater and boiler segments; any changes to the regulatory landscape for decarbonization efforts, including related to federal funding and grants, across industries; the performance of the Company's computer modeling technique and its ability to reduce greenhouse gas emissions and design new technologies; the Company's ability to successfully deliver, install, and meet the performance obligations of the Company's products, including process burners, boiler burners and flare products, in the markets the Company operate and sell its products in; the Company's ability to successfully manufacture and supply its burner products timely; the Company's ability to further expand into other geographic markets; the performance of the Company's flex fuel hydrogen capable burner; the Company's ability to further expand the sale of ultra-low NOx process and boiler burners, including the flex fuel hydrogen capable burner; the Company's ability to successfully perform engineering orders and performance optimization processes included therein; general business and economic conditions; the performance of management and the Company's employees; the Company's ability to obtain financing, when needed; the Company's ability to compete with competitors; whether the Company's technology will be accepted and adopted and other factors identified in the Company's Annual Report on Form 10-K filed with the U.S. Securities and Exchange Commission and available at www.sec.gov and other factors that are detailed in the Company's periodic and current reports available for review at www.sec.gov. Furthermore, the Company operates in a competitive environment where new and unanticipated risks may arise. Accordingly, investors should not place any reliance on forward-looking statements as a prediction of actual results. The Company disclaims any intention to, and, except as may be required by law, undertakes no obligation to, update or revise forward-looking statements to reflect events or circumstances that subsequently occur or of which the Company hereafter become aware. SOURCE ClearSign Technologies Corporation WANT YOUR COMPANY'S NEWS FEATURED ON PRNEWSWIRE.COM? 440k+ Newsrooms & Influencers 9k+ Digital Media Outlets 270k+ Journalists Opted In

ClearSign Technologies Corporation Debuts New ClearSign Core™ M Series Process Burner Technology at Global Chemical Company in Texas

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