Robust turbomachinery for flexible use (RoBoFlex AP 1.2)

Grant number: 03EE5013B

Short Description

With the supply of renewable electric energy being highly volatile, an increased demand for instantaneously available balancing energy has emerged in the recent past, stimulating the operation of agile gas turbine power plants. To allow for a quick connection of the gas turbine unit to the power grid, it must be kept at aerodynamic part load, which results in a decreased process temperature, process pressure, and geometric adjustments (e.g. variable inlet guide vanes). The altered conditions with regard to the aerodynamic design pint (ADP) result in the occurance of so-called “real geometry effects” in the annulus (gaps, steps, edges, blade misalignement). Qualitative and quantitative assessments of these phenomena and their aerodynamic impact on the unit’s performance are subject of current research.

Aim/Objective

·       Identification of crucial aerodynamic perturbing mechanisms on the performance of a highly-loaded axial compressor

·       Sensitivity survey and analysis of the potential of desensitizing measures to realize a more robust compressor design

 

Project partners

Federal Ministry for Economic Affairs and Energy

Rolls-Royce Deutschland Ltd & Co KG

Person in Charge

Jannik Petermann, M.Sc.