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Over 25 Years of Service



In September 1988 engineers with OEM experience in engine design, development, testing and field support formed AETC. At theat time of formation AETC primarily provided warranty support, field test services and failure analysis for an OEM’s. The main applications AETC focused on were diesel and dual fuel engines in marine and co-generation. However even thatduring that time AETC supported new technology development, publishing one of the first papers on micro-pilot dual fuel engines in 1990. While presenting that paper at an American Society of Mechanical Engineers (ASME) conference, Greg Beshouri, AETC’s future president, met Jim McCoy. At that time Jim McCoy worked for one of the major pipeline companies and was very excited about new technologies (some things never change!). Jim introduced AETC to the PRCI and a number of other technical leaders in the pipeline industry. There was no going back. The pipeline went from 0% of AETC’s income to 1988 to over 70% today.


Prior to forming AETC, our engineers had been heavily involved in continuous engine performance monitoring. In 1991 AETC became involved in its first PRCI project, the seemingly crazy idea of using fiber optics to measure combustion pressure. This eventually became a product and in 1996 AETC introduced CPM™, one of the first continuous combustion pressure monitoring systems in the industry. While fiber optics ultimately failed to develop a market presence in that application, end users saw the benefits of continuous pressure monitoring. That which encouraged traditional technology providers to develop specialty pressure sensor products for the gas engine market. Today hundreds of engines in the pipeline and other industries are fitted with continuous pressure monitoring systems. AETC’s CPM™ product has continued to grow and mature. In 2001 a client introduced AETC to another “crazy” idea, Ion Sense. AETC adapted that technology to pipeline engines, again with generous support from PRCI. AETC will present a paper at the 2008 this GMC on the use of this technology for monitoring and control of PCC’s. In addition, AETC has received its first purchase order for CPM™ systems with production Ion Sense hardware which will be installed by year end.


During the 1990’s and into the new millennium AETC has worked on a number of other PRCI related projects including: the PEMS Guidelines, Emissions trade-offs and Advanced 2 Stroke Cycle Engine Controls. These initiatives have resulted in products which AETC has directly sold to end users and/or licensed to leading providers in the industry. The most recent of PRCI projects have included the extension of Advanced 2 Stroke Cycle engine control to Predictive Control and the extension of continuous pressure monitoring to advanced balancing techniques, which will be presented at this GMC.


AETC attributes its success to the strong relationships it has developed with partners including major pipelines, research institutions like the National Gas Machinery Lab (NGML) and technology providers. In addition1995 AETC participated in the founding of Enginuity Enginuity in 1995 which has had its own exciting trajectory, and was recently purchased by Dresser Rand. Based on thosThe strong e relationships built over the years have fostered works that AETC hasAETC developed including its current concepts on engine control, fused PEMS and combustion monitoring to create very accurate combustion based PEMS, developed very effective methods for specifying upgraded engine performance, etc.


Many of the products and technologies developed by AETC for the pipeline market have migrated into other engine markets including distributed power generation and waste water co-generation. Some of that has in turn returned back to this industry including the ability to handle infinitely variable fuel gas composition and cost-effective compliance monitoring concepts. AETC has even applied technology which started in this industry to asphalt heaters.


Speaking of the GMC,In 1992 AETC presented its first paper at the GMC which was the then Reciprocating Machinery Conference on "Successful Field Emissions Testing of Reciprocating Engines". The paper was well received and AETC has presented one or more papers at every subsequent GMC which we consider the premier forum on gas engines.


So what does Greg Beshouri, one of AETC’s founders and its current president have to say? “When I look at where we started and where we are at, I am amazed. In reviewing the past 20 years, five things strike me. The first is the engineering fundamentals; . Oonce you are well grounded in the basics, whether it is combustion or fatigue failure, you can go from Coopers to Clarks, to I-R’s and even to asphalt plants. Second, you should never be satisfied with what you have and what you know. In the early 90’s when we needed 30 points to map an engine I thought that was great. Under continued pressure from our clients to improve cost-effectiveness we adapted concepts like trapped equivalence ratio and scavenging efficiency. We can now map an engine in a day and our understanding of the underlying physics has improved by an order of magnitude. Third, do not discount seemingly “crazy” ideas. They may be too early or inapplicable, but if you close your mind you may miss an important opportunity. Fourth, you have to be organic and flex with the industry, addressing their needs as they arise. Finally it is about the people you work with. This industry is full of great people and many contributed to our success. There are far too many people in the industry to name and I would not want to risk omitting anyone. All I can say is thanks for helping to contribute to our success and here’s to the next 20 Years!”


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