Yankee Scientific: The Practice of Ingenuity

Eric Guyer

Dr. Guyer founded Yankee Scientific in 1988 with David Brownell.

Eric's educational background includes a Doctor of Science degree in Engineering from the Massachusetts Institute of Technology and a Bachelor of Science degree from what is now the University of Massachusetts at Lowell. He is a member of the American Society of Mechanical Engineers, the American Society of Heating, Refrigeration and AirConditioning Engineers; Sigma Xi; and the Tau Epsilon Honorary Engineering Society.

Dr. Guyer has spent his most of his career in the development of energy technology and related enterprises. Early in his career he became interested in smaller scale energy systems of all types, particularly building energy systems. With the founding of Yankee Scientific in 1988, he has led the development of important new products for the HVAC industry. In the year 2000, Dr. Guyer brought together the international industry team that now comprises Climate Energy, LLC, the North American leader in micro-combined heat and power systems. He has guided technical projects for several branches of the US military, including DARPA, and for a number of industry trade and research organizations.

As editor of the Handbook of Applied Thermal Design he has contributed significantly to the methods and practical perspectives of energy system design. His technical expertise is in the application of thermodynamic principles, materials, thermal power devices, and instrumentation and controls to the engineering solution of heat flow and temperature problems in product and process design.

Dr. Guyer serves as the Director of Energy Technology for the World Alliance for Decentralized Energy (WADE) and is a member of the Clean Energy Venture Group. He is the author of a number of patents and technical articles and he is engaged in the public debate of the technology and policy options for our energy future.
David Brownell
Vice-President and Technical Director

David Brownell co-founded Yankee Scientific with Dr. Eric Guyer in 1988 and now serves as the Technical Director for the Company.

David has been developing real world engineering solutions for clients for over 30 years. David's core expertise is in thermal, fluid and mechanical systems design and analysis but he also brings a broad range of interdisciplinary know how to our engineering programs.

David has been the principal investigator for many of Yankee's prototype development projects. David has developed prototypes for the first USA manufactured monoblock cast aluminum boiler, a gas fired water distillation appliance, a cyclone separation method for pharmaceutical manufacturing and a liquid fueled absorption refrigerator. Over the last few years David has managed our programs to develop scroll machine based power generation systems operating with both steam and refrigerants as the working fluid. David also developed the micro-combined heat and power prototype systems that eventually evolved into the Climate Energy freewatt® product.

David is proficient in the application of advanced modeling tools including SolidWorks based FEA and CFD programs and has developed models of supersonic nozzles, diffusers and ejectors. David has developed dozens of analytical models characterizing the operation of devices such as drip coffeemakers, airborne COIL laser effluent ejectors, the blowing of an electric fuse, the firing rate for pulse combustion systems and the transient heating capacity of indirect water heaters.

Mr. Brownell received a BS in Mechanical Engineering from Northeastern University (with high honors) and is a registered professional engineer in Massachusetts.

In his spare time David enjoys amateur astrophotography and woodworking.
Alex Stevenson
Engineering Manager of Electrical and Electronic Systems

Alex Stevenson joined Yankee Scientific in 2003, and has designed control and safety systems in support of DARPA and US Army projects. Most recently, Alex completed the design and implementation of Internet-enabled, high reliability control systems and logic-controlled Automatic Transfer Switches for a family of residential-scale Micro-Combined Heat and Power HVAC products, known as ‘freewatt’. These products are currently available for commercial sale. Alex also designed the automated test equipment used in the production of the ‘freewatt’ control modules.

Previously, Alex was at Intel Corporation and accumulated 14 years experience in Sales and Marketing of Intel's extensive catalog of semiconductor, board, microprocessor development tools and OEM system products. Alex supported the design efforts of many of Intel's largest OEM customers securing ‘design wins’ at Dell Computer, Sun Microsystems, EMC, ModComp, Lucent, Compaq Computer, Hewlett-Packard, and many others.

As a new grad, Alex joined computer maker Prime Computer, Inc. doing digital hardware and systems design, software and microcode development, hardware architecture analysis, and Engineering Management over a 14 year tenure.

After 14 years at Intel, Alex wanted to return to the excitement and intellectual challenges of designing embedded microcontroller and DSP-based solutions. In addition to his broad Computer Engineering skills, he has a passion for mechanical and automotive technologies. Alex holds five US Patents in the areas of digital archival storage, digital audio, and DSP-based musical instrument audio processing. Alex received his Electrical Engineering degree from the University of Massachusetts in 1978.

Alex is a longtime rock musician in his spare time.
Howard Eglowstein
Principal Engineer

Howard is a career product designer and brought his extensive firmware and electronic prototyping expertise to Yankee Scientific in 2006. He specializes in making tiny, inexpensive processors do jobs that are normally done by larger, more expensive options. He is currently working on Yankee's joint venture with ECR International (Climate Energy) on controls, firmware and telemetry support for the freewatt® cogenerating heating system. Prior to joining Yankee, he was a senior product design engineer at LCS/Telegraphics, one of the contributing companies to the original USB specification. Over his 12 years there Howard's work included FM radio transmitters, assorted handheld electronics, network server security devices, unique musical instrument control panels, medical devices, psychology lab test equipment and some rather unusual computer mice, keyboards and joysticks.

As Testing Editor at McGraw-Hill's BYTE Magazine in the early 90's he wrote monthly reviews and articles in addition to designing custom test equipment and procedures for evaluating personal computer performance. One of Howard's creations is 'Thumper II', a robotic controller that converted a folding card table into a battery life testing station for 8 notebook computers. Thumper used R/C car servos as both power and force sensors to press keys while watching for screen activity using optical sensors. His career also includes designing and building the first publicly displayed tablet-style computer (Hindsight's Letterbug), system architecture, firmware and application software for the Coleco ADAM, and the first touch-sensitive, speech-recognizing automatic teller machines.

Howard has an S. B. (1982) from MIT's School of Architecture and Design where he did original research at the Architecture Machine Group (now the Media Lab) in lip synchronization. In his spare time, he designs science fair project ideas for Science Buddies, a non-profit organization that encourages kids to explore the sciences and enter local science fairs. He also flies power kites and builds the occasional prototype gadget for friends and family.
Phil Lafond
Senior Engineer

Phil LaFond is a Senior Engineer with over a decade of experience in electric power generation. Phil earned a Bachelor of Science Degree in Nuclear Engineering at MIT and started his career as a Nuclear Plant Reactor Operator at Pilgrim Nuclear Power Station. In 2006, Phil traded gigawatts for kilowatts when he joined Yankee Scientific to head the field trial of the Climate Energy developed freewatt® Micro-Combined Heat and Power System. Following the successful field trial, Phil managed the field operations of the Climate Energy Home Dealership. Phil led the development and continuous improvement of a multi-day dealer certification program for new freewatt dealers.

Phil's expertise includes operations and logistics, diagnostics and troubleshooting, remote monitoring implementation, data collection, and analysis, and hydronic system design.
Mark Macauley
Senior Project Engineer

Mark joined Yankee Scientific in 2000. Mark’s early projects included the design and testing of a mono-block cast aluminum heat exchanger for residential heating, the design and testing of several small-scale steam engines as well as engineering support on several US Army and DARPA projects.

Mark's latest major project was the development and commercialization of a residential-scale micro-combined heat and power system called the freewatt system. As the Director of Product Engineering, Mark was a contributor in the research of engines for this application and led the design, engineering and major vendor support for the freewatt product family. Mark also led the engineering team responsible for the laboratory, field and certification programs at a state and federal level before providing production and sustaining engineering support. Mark’s experience in the residential heating and power market allowed for a seamless application of the freewatt system into the heating market.

Previously, Mark worked at ITT Industries and accumulated eight years of domestic and international experience in the design, sales, production and operation of custom-engineered aeration systems. As a regional sales engineer, Mark supported the design and sales efforts of sales representatives in the US, Canadian, European, Australian, Middle Eastern and Far Eastern markets. Mark has an M.S. and B.S. in Environmental Engineering from Worcester Polytechnic Institute. While Mark is actively involved with his children’s interests, he also finds time to fish, kayak and hike.
Elizabeth Brownell
Staff Engineer & Adminstrator

Elizabeth Brownell joined Yankee Scientific in 2013 as a Staff Engineer & Administrator. She plays many roles between the lab and the operations desk, including managing technical and customer support for installed freewatt Micro-Combined Heat and Power Systems, designing & maintaining a customer database, and preparing proposals for new project opportunities. Previously, Elizabeth was an engineer at VECARIUS, a startup based out of Somerville, MA, where she conducted testing on an innovative automotive waste heat recovery system.

In 2008, Elizabeth joined the Compact Muon Solenoid Experiment at the Large Hadron Collider in Geneva, Switzerland, where she was both a Calibrations Programmer and an Expert Operator for the Cathode Strip Chamber Detector team. In 2007, she worked at Xtalic Corporation in Medford, MA, where she designed, implemented, and tested analytical methods to quantify electroplating additives as the Analytical Chemist at the company.

Elizabeth earned a Master of Science degree in Mechanical Engineering from Tufts University in 2013. In her thesis, she developed a novel algorithm to maximize the output power or efficiency of a thermoelectric module by optimizing the geometry of the semiconducting pellets. Her research on the topic is scheduled to be published in IEEE Transactions in 2014. She also holds a Bachelor of Science degree in Physics and Chemistry from Northeastern University which she received in 2010.

When she's not in the lab, Elizabeth enjoys carpentry, gardening, cooking, and hiking, and holds an active role in the Boston Circus Arts community.
Karl Coumou
Consulting Engineer

As consulting engineer at Yankee Scientific, Karl is involved in the design and testing of energy related products. These have included a number of self-powered kitchen and space heating appliances for the US Army, as well as a unique power generator for DARPA. Before joining Yankee, he was director of engineering at Holometrix, a small manufacturer of scientific instruments for heat transfer experiments and the measurement of material properties. Responsibilities included mechanical design of test chambers, system design of PC-controlled test equipment that included data acquisition devices, temperature controllers, lasers, high vacuum equipment, and mechanical refrigeration equipment. He was in charge of software development, production, documentation, and customer support. Karl received an R&D-100 Award in 1989 for the development of a thermal conductivity analyzer, and in 1990 for the development of a gas permeability analyzer.

Earlier in his career, as manager of the Thermal Instruments Group at Dynatech Corporation, Karl was responsible for the development and sale of the company's product line consisting of instruments for measuring thermophysical properties. Karl has an M. S. in Mechanical Engineering from MIT and an undergraduate degree in Mechanical Engineering from the Hogere Technische School in the Netherlands.

In his spare time, Karl tends to the many needs of his extended family and contributes to the public discussion of energy.
Henry Faulkner
Consulting Engineer

Henry has been involved for three decades in analysis and design of systems involving transfer of energy between fluids and mechanical motion, including thermodynamics, fluid mechanics, heat transfer, machine dynamics, structural analysis, and transient analysis. He has been with Yankee Scientific for ten years. There he has been part of a team that developed a compact portable steam powered generator for DARPA. He also managed a project to develop a lightweight rapid inflation machine for the U. S. Army, and analyzed the performance of several small-scale cogeneration systems. Prior to that Henry was with Northern Research and Engineering Corporation, a subsidiary of Ingersoll-Rand. He managed and worked on numerous projects, involving design, assembly, and test of prototype energy conversion devices. These included a reciprocating expander for an organic Rankine bottoming cycle, a high performance fan to replace a helicopter tail rotor, an air turbine powered submarine torpedo ejection pump, an air turbine powered engine starter, a performance upgrade kit for a large turbocharger, and a hydroelectric turbine that is less destructive to fish.

Prior to his doctoral studies, Henry worked in the aeronautical industry in the areas of airframe structural analysis, computerized preliminary design of airplanes and helicopters, noise reduction for helicopters and tiltrotor aircraft, and airline fleet planning. Henry has a Ph. D. in Mechanical Engineering from MIT, an M. S. in Aeronautical Engineering from MIT, and and a B.A from Harvard University.

Henry is an active instrument rated pilot and enjoys hiking in the hills of New Hampshire and the Grand Canyon.
Stan Jakuba
Consulting Engineer

Stan is an expert in mechanical designs and testing particularly as it applies to engines and power sources ranging from diesel and alternative fuels engines, steam engines, pumps to the test facilities and equipment for their research and development. Experienced in R&D for high volume manufacturing of diesel engine components, Stan has equally contributed to the success of innovative projects in pure research, writing proposals, progress reports and dealing with customers such as the Department of Energy. At the Scientific Energy Systems Corp., Stan led the high pressure and temperature steam engine R&D effort for building a near-zero pollution automobile. Working as a consultant operating his own company, Stan has provided engineering and educational services for dozens of companies ranging in size from GM and GE to small R&D firms involved in advanced and alternative energy related projects.

Stan holds a patent, has written a number of technical papers, has fluency in several languages, is a active in professional societies and standards-setting committees. He has a B. Sc. from Ceske Vysoke Uceni Technicke (Czech Inst. of Tech.), Prague, Czech Republic (1967), and a M. Sc. from Massachusetts Institute of Technology, Cambridge, MA (1970).

Stan is active in the public debate about future energy pathways. Stan is a avid outdoorsman who skis, hikes and travels year round.