Compressor Development

Workpackage 5: Compressor Development

Development of a safe, highly efficient compressor that can achieve high seasonal performance by:

  1. Significantly reducing oil and refrigerant charge while guaranteeing safe operation;
  2. Optimizing for part load operation by utilizing new types of variable speed motors, wet vapour injection and economizer ports;
  3. Extending the variable speed range of the compressor as low as 15 Hertz.


Bella, B. (2015)  Optimized Compressor for Air Source Heat Pumps in Retrofit Applications; Air Source Heat Pumps in Retrofitting Applications – Trends and Perspectives; OTTI-Conference; Vienna 2015