- By:
- Nawaz, Kashif ; Wang, Pengtao ; Sun, Jian ; Kowalski, Stephen P; Gao, Zhiming ; Yang, Cheng-Min
- Page Number:
- 1-11
- Book Title:
- The 20th International Refrigeration and Air Conditioning Conference at Purdue
- Publication Date:
- March 12, 2026
- Publisher Location:
- Purdue University, West Lafayette, Indiana, United States of America
- Conference Name:
- The 20th International Refrigeration and Air Conditioning Conference at Purdue
- Conference Location:
- West Lafayette, Indiana, United States of America
- Conference Sponsor:
- Herrick Lab
Abstract
Heat pumps have been sought as a promising technology for air and water heating processes in buildings. Several OEMs have been commercializing heat pumps with varying capacities; However, the application has been limited to lower temperatures (less than 70℃). With the recently growing interest in replacing gas-fired equipment for buildings and industrial processes, a new class of heat pumps, known as high-temperature heat pumps, is gaining substantial interest where the target temperatures are higher than the conventional heat pump technology (greater than 90℃). The current study is focused on this class of heat pumps and aims to provide a holistic overview of state-of-the-art technology while highlighting major challenges and opportunities. The discussion will be focused on the availability of technology to enable higher sink temperatures, deployment-based applications, waste heat recovery, and process integration and controls.
