A new type of heat pump being developed at Purdue University could allow residents in cold climates to cut their heating bills in half.
The research, funded by the U.S. Department of Energy, builds on previous work that began about five years ago at Purdue’s Ray W. Herrick Laboratories, said James Braun, a professor of mechanical engineering.
Heat pumps provide heating in winter and cooling in summer but are not efficient in extreme cold climates, such as Minneapolis winters.
“With this technology we can maintain the efficiency of the heat pump even when it gets pretty cold outside,” said Eckhard Groll, a professor of mechanical engineering who is working on the project with Braun and W. Travis Horton, …