Introduction to multi-point design strategies for aero engines
Paper i proceeding, 2020

Classic gas turbine design relies on the definition of a design point, and the subsequent assessment of the design on a range of off-design conditions. On the design point, both component sizing (e.g., in terms of physical dimensions or in terms of map scaling parameters) and a solution to the off-design governing equations are established. With this approach, it is however difficult to capture the contradicting requirements on the full operating envelope. Thus, practical design efforts rely on various multi-point design approaches. This paper introduces a simplified notation of such multi-point approaches via synthesis matching tables. It then summarizes two academic state-of-the-art multi-point design schemes using such tables in a comprehensible fashion. The target audience are students and engineers familiar with the basics of classic cycle design and analysis looking for a practical introduction to such multi-point design approaches. Application examples are given in terms of a simple turbojet and a typical geared turbofan as modeled in state-of-the-art academic cycle design and analysis efforts. The results of the classic design point approach are compared to those of multi-point approaches.

Geared turbofan

Thermodynamic cycle analysis

Multi-point design

Modelica

Författare

Michael Sielemann

Modelon

Clement Coic

Modelon

Moritz Hübel

Modelon

Xin Zhao

Chalmers, Mekanik och maritima vetenskaper, Strömningslära

Konstantinos Kyprianidis

Mälardalens högskola

Proceedings of the ASME Turbo Expo

Vol. 6 v006t08a005

ASME Turbo Expo 2020: Turbomachinery Technical Conference and Exposition, GT 2020
Virtual, Online, ,

Ämneskategorier

Arkitekturteknik

Medieteknik

Rymd- och flygteknik

DOI

10.1115/GT2020-14912

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Senast uppdaterat

2021-04-29