University of Wisconsin-Madison Crest
Wisconsin Energy Institute

Greg Nellis

Professor, Mechanical Engineering

Email: 

gfnellis@engr.wisc.edu

Phone: 

(608) 265-6626

Energy Expertise: 

Greg Nellis' research focuses on cryogenic refrigeration systems including mixed gas JT systems, reverse-Brayton systems, pulse-tubes, and hybrid cryocoolers.  He has also worked on thermal-fluid problems in semiconductor manufacturing including immersion lithography, EUV lithography, and nanoimprint.  More recently, Nellis has become involved in projects related to refrigeration technology for industry and heat pump systems.​