McEntee Mechanical Design, LLC

Maine Maritime Academy, TEDEC project

• Interim Director of TEDEC project to create a test center for renewable Tidal Power Turbines
• Managing Federal Energy Regulatory Commission (FERC) preliminary permit, including consultations with Federal, State and Local Agencies
• Fundraising for TEDEC from Federal Agencies, State Agencies, and Foundations
• Community outreach and communication efforts for TEDEC project

Microgen Energy Ltd, UK

• Analysis for free-piston Stirling engine program
• Stirling engine design for high volume manufacture, liaising with multiple manufacturers and parts vendors on three continents
• Collaboration and support for the creation of an engine manufacturing line in Japan
• Stirling engine systems and controls development for optimal product operation in European domestic settings
• Developing Stirling engine build capability within Microgen facilities
• Developing Stirling engine testing capabilities at Microgen, increasing the number of test bays from one to five in 2005 and from five to twenty in 2006/2007
• Stirling engine analysis capabilities within Microgen, introducing finite element capabilities, Stirling engine analysis capabilities, fluid and thermal system analysis capabilities.
• Recruiting Stirling engine team, including analysis, build, and design staff.
• Strategic planning for future engine and product variants.
• Manufacturing engineering support.

External Power, LLC, Ohio

• Transfer of technology from a Stirling engine design house to External Power.
• Coordinating Design for Manufacture effort at External Power, transforming the initial engine design into one suitable for intermediate and high volume manufacture.
• Creating management and tracking systems for External Power’s intellectual property.
• Analyzing performance of compact low temperature fluid heat exchangers and high temperature gas heat exchangers to optimize engine performance.
• Performing stress analysis of high temperature components to optimize engine life.
• Designing pressure vessels to ASME pressure vessel code requirements.
• Selecting materials and processes for mass manufacture.
• Directing testing programs to prove engine life, electrical load capabilities, heating capabilities.
• Coordinating testing and design work performed at US National Labs in support of the commercialization effort.

Global Cooling, Inc., Ohio

• Managing transfer of Stirling cycle refrigeration technology to Japanese clients.
• Creating prototype and production designs for a 40 watt portable Stirling cycle refrigerator with emphasis on Design for Manufacture.
  
  

Stirling Technology Inc, Ohio

• Analyzing bearing configuration in a residential air to air heat exchanger, and implemented a change from dry lubricated bearings to ball bearings, increasing MTBF to acceptable levels.
  
  

Sunpower, Inc., Ohio

• Designing a silicon micro-machined Stirling cryocooler driven by a coupled micro-machined Stirling engine for electronic cooling.
• Researching various aspects of micro-machining, corner compensation techniques, silicon etch rates, mask design for given finish geometry, silicon fusion bonding, high pressure oxidation, material properties of silicon and silicon dioxide.
• Developing design correlations for predicting high frequency dynamic behavior of square and bossed round diaphragms.
• Analyzing mechanical, dynamic and thermal behavior of MEMS based Stirling devices.
• Predicted fatigue failure rates for mechanical springs in cryogenic coolers. Performed statistical analyses to determine required number of fatigue test samples to ensure required level of confidence in the spring design.
• Silicon Properties
  
  

Emanative Enterprises, Vermont

•  Co-wrote LASER, a Stirling Cycle software package used to design traditional and novel Stirling cycle machines.
  
  

Maine Maritime Academy

• Creating data acquisition systems for tensile testers and other lab equipment.

Forensic Engineering

• Forensic engineering investigations of a tractor-trailer roll over; sandblasting injury to a shipyard employee; injury to a shoe factory employee caused by a mechanical shoe press.
• Qualified as an expert witness in Federal District Court.