Introduction to multi-point design strategies for aero enginesShow others and affiliations
2020 (English)In: Proceedings of the ASME Turbo Expo, American Society of Mechanical Engineers (ASME) , 2020Conference paper, Published paper (Refereed)
Abstract [en]
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. Copyright © 2020 ASME
Place, publisher, year, edition, pages
American Society of Mechanical Engineers (ASME) , 2020.
Keywords [en]
Geared turbofan, Modelica, Multi-point design, Thermodynamic cycle analysis, Gas turbines, Application examples, Component sizing, Design and analysis, Gas turbine design, Off design condition, Physical dimensions, Practical introduction, Scaling parameter, Aircraft engines
Identifiers
URN: urn:nbn:se:mdh:diva-58827DOI: 10.1115/GT2020-14912Scopus ID: 2-s2.0-85091323028ISBN: 9780791884157 (print)OAI: oai:DiVA.org:mdh-58827DiVA, id: diva2:1668665
Conference
ASME Turbo Expo 2020: Turbomachinery Technical Conference and Exposition, GT 2020, 21 September 2020 through 25 September 2020
2022-06-132022-06-132022-06-13Bibliographically approved