Competitive Technology Analysis of a Double Stage Kinetic Compressor for 0.5 MW Heat Pumps for Industrial and Residential Heating| 2021 Publication type A4 Conference proceedings Author(s) Jastrzebski Rafal P., Kepsu Daria, Putkonen Atte, Martikainen Iikka, Zhuravlev Andrej, Madanzadeh Sadjad