Alternatives to Vapor-Compression HVAC Technology

William Goetzler is a managing director, Robert Zogg is an associate director, and Jim Young is a managing consultant in the Energy Practice of Navigant Consulting. Caitlin Johnson is a graduate student at Boston University, and formerly a senior consultant with Navigant Consulting. BY WILLIAM GOETZLER, MEMBER ASHRAE; ROBERT ZOGG, MEMBER ASHRAE; JIM YOUNG, ASSOCIATE MEMBER ASHRAE; AND CAITLIN JOHNSON, ASSOCIATE MEMBER ASHRAE Alternatives to Vapor-Compression HVAC Technology