What's inside?
In this paper, a methodology for High-temperature heat pumps (HTHP) centrifugal compressor design is presented. The heat pump cycle analysis and the compressor meanline design are coupled in the initial phase to study the selection of refrigerants and their impact on compressor design. Following this, the impeller was designed using a 3D inverse design method.
Automatic optimization was carried out to optimize the impeller performance. The downstream volute was also designed by using a unique inverse design method. Finally, the performance of the compressor stage was verified by computational fluid dynamics simulations.
The structural integrity of the compressor was also examined by finite element analysis. The result shows it is important to couple the compressor design with the refrigeration cycle analysis.
Through state-of-the-art compressor design/optimization techniques, centrifugal compressor designs can be efficiently generated for HTHP applications.
The selection of high-temperature refrigerant is important to the system's
performance, cost-effectiveness and environmental-friendly requirements. It also leads to some challenges for the compressor design, an area under active development.
In this publication, you will:
- See how the choice of the refrigerants, the compressor sizing and the couple
performance evaluation can be done simultaneously in the initial
stage. - Discover how a HTHP compressor stage using environmentally friendly refrigerant can be generated and optimized to have good efficiency and operating range.
- Learn how the experience learned from one design can be applied to other heat pump compressor development, as long as the design space is similar.
