TY - JFULL AU - S. B. Alavi and G. Cerri and L. Chennaoui and A. Giovannelli and S. Mazzoni PY - 2015/5/ TI - Optimum Turbomachine Selection for Power Regeneration in Vapor Compression Cool Production Plants T2 - International Journal of Energy and Power Engineering SP - 558 EP - 570 VL - 9 SN - 1307-6892 UR - https://publications.waset.org/pdf/10000999 PU - World Academy of Science, Engineering and Technology NX - Open Science Index 100, 2015 N2 - Power Regeneration in Refrigeration Plant concept has been analyzed and has been shown to be capable of saving about 25% power in Cryogenic Plants with the Power Regeneration System (PRS) running under nominal conditions. The innovative component Compressor Expander Group (CEG) based on turbomachinery has been designed and built modifying CETT compressor and expander, both selected for optimum plant performance. Experiments have shown the good response of the turbomachines to run with R404a as working fluid. Power saving up to 12% under PRS derated conditions (50% loading) has been demonstrated. Such experiments allowed predicting a power saving up to 25% under CEG full load. ER -