IGTC-15 Effects of Inlet Passage Width Contraction of Low Solidity Cascade Diffusers on Performance of Transonic Centrifugal Compressor(Session A-6 CENTRIFUGAL COMPRESSOR I)

スポンサーリンク

概要

• 論文の詳細を見る

• Low-solidity circular cascades have been applied successfully as a part of diffuser system of a transonic centrifugal compressor. Three types of diffusers with and without an inlet passage width contraction or a pinch upstream of a cascade were tested. An appropriately contracted diffuser realized a high compressor efficiency at high rotor speed by the decrement in input power. Effects of a passage width contraction on surge and choke were also discussed. Regarding the choke, it occurred at the throat of cascades of a pinched type diffuser at less flow than the inducer choke flow in spite of a low solidity cascade. A pinched diffuser had a stabilizing effect on the diffuser characteristics but only a small amount of gain in surge margin was got owing to the change in impeller characteristics.

• 公益社団法人日本ガスタービン学会の論文

著者

• Hayami H.

  Institute Of Advanced Material Study Kyushu University

• Umemoto A.

  Technology Division, Toto Co.

関連論文

• Flow Measurement in a Transonic Centrifugal Impeller Using a PIV
• Application of Pressure Sensitive Paint Measurement to a Low-Solidity Cascade Diffuser of a Transonic Centrifugal Compressor
• IGTC-1 Compressor Performance Influenced by Distribution of Tip Clearance of Mixed Flow Impeller(Session A-1 AERODYNAMICS I (Radial Flow))
• IGTC-15 Effects of Inlet Passage Width Contraction of Low Solidity Cascade Diffusers on Performance of Transonic Centrifugal Compressor(Session A-6 CENTRIFUGAL COMPRESSOR I)

スポンサーリンク