IGTC-24 Performance of Radial Exhaust Turbine Driven by Pulsating Flow(Session A-7 UNSTEADY AERODYNAMICS I)

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概要

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• This paper describes the theoretical and experimental investigations on the performance of a radial turbine driven by exhaust gases from six cylinders of a four stroke cycle Diesel engine. In the theoretical analysis, the whole flow system, including engine cylinders and intake and exhaust pipes, is considered as an one-dimensional flow, and calculated numerically by the method of characteristics. At boundaries the quasi-steady assumption is employed. Especially at pipe junctions, the equal pressure model is employed with the variable friction loss coefficient according to flow directions. For the flow angle at the turbine vaneless nozzle exit, two kinds of values are used and the results of both cases are compared. Further, experiments are also carried out using the same engine system. Consequently the experimental results prove the validity of this analysis at the points of pressure waves, time-averaged mass flow rates and turbine torque, etc.

• 公益社団法人日本ガスタービン学会の論文

著者

• Sekita D.

  Mitsubishi Research Institute Inc.

• Takama N.

  Institute Of Industrial Science University Of Tokyo

• Yoshiki H.

  Institute of Industrial Science, University of Tokyo

• Endoh T.

  Institute of Industrial Science, University of Tokyo

• Endoh T.

  Institute Of Industrial Science University Of Tokyo

関連論文

• IGTC-24 Performance of Radial Exhaust Turbine Driven by Pulsating Flow(Session A-7 UNSTEADY AERODYNAMICS I)
• IGTC-65 Performances of Radial Inflow-Turbines for Exhaust Gas Turbochargers Under Nonsteady Flow Conditions(Session C-8 TURBOCHARGERS II)

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