Selected Results of Investigations of Single-Stage Centrifugal Blower for Small Flow Rates-Influence of Spliter Blades Length

Selected results of experimental investigations of prototype centrifugal blower with impeller diameter D²=200mm are presented in this paper. This researches carried on by Chair of Thermal Engineering are the part of designing work on family of blowers for small flow rates. Performance characteristics of blower equipped with adjustable inlet guide vanes and adjustable vaned diffuser are presented. Investigations was performed on three impellers: one with 24 blades and two with 12 main blades and 12 splitters of different length.