Jeff Yarnall

Jeff Yarnall has over 30 years experience with compressed air and process vacuum systems, including; system design, applications, installation, troubleshooting, maintenance, controls and energy audits. Responsibilities include major capital project management, both in the United States and abroad., from engineering, sales, procurement, and documentation. Jeff also serves as consultant to clients for energy audits and assessments, educational instruction, and system design.

Jeff has devised comprehensive deterministic simulation models for compressed air systems which allow the evaluation of "what if" scenarios for clients.

Over 1500 people have attended Jeff’s classes on compressor maintenance, system optimization, and the Compressed Air Challenge with excellent reviews. In addition to class room theory, Jeff uses the experience of over 800 audits to illustrate the practical side of compressed air systems operations.

Professional and Civic Affiliations

  • Registered Professional Engineer, State of Oregon
  • Instructor, Level 1 and Level 2, Compressed Air Challenge, US Dept of Energy
  • Qualified Air Master+ Software Specialist
  • Lead auditor and technical support for Ecos Air, a PG&E incentive program
  • Bonneville Power Administration, Technical Support Pool
  • Past President, Rotary Club of Tigard
  • Past Chairman, Rotary International D5100 Youth Exchange Program


  • BS, Environmental Resources Engineering, Humboldt State University, Arcata, CA, 1986


  • "Better than a Crystal Ball", Chemical Processing, May 2003

Qualified For

  • Fundamentals of Compressed Air Systems
  • Advanced Management of Compressed Air Systems

Contact Information

Jeff Yarnall
Rogers Machinery Co.
Portland, OR 97224
503-603-1935 cell: 503-706-1637 fax: 503-603-1994