For more information on the project please contact the coordinator: Arvind Gangoli Rao A.GangoliRao@tudelft.nl

This project is made possible by

FP7

the EU

DisseminationTechnical papers

How ambiguous are climate metrics?

How can a new technology be evaluated with respect to its climate impact? Different climate metrics and time horizons are discussed. The paper clarifies how to deal with this question, proposes a five step approach and shows the procedure exemplarily for the AHEAD project.

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Feasibility of the hybrid combustion concept

The present report concerns the two types of combustors, at first, the hydrogen fueled combustor and thereafter the second combustor that is bio/fossil based jet fuel. It should be emphasized that during the whole of the study of the 2nd combustor, it always took into account that its inlet oxidant chemical composition are affected by the combustion process occurring in the 1st hydrogen fueled combustor.

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ANALYSIS: Hybrid vehicles move AHEAD

Please find here the Article from Flight Global on 'ANALYSIS: Hybrid vehicles move AHEAD'.

 

Numerical Investigations on the conceptual design of a ducted contra-rotating fan

The Advisory Council for Aeronautics Research in Europe (ACARE) has set an ambitious array of objectives to be accomplished by 2050. It is often claimed that complying with those targets will not require evolution but, rather, revolution. If the growth in aviation has to be sustained in the future then we must come up with radical aircraft and engine configurations which can meet the demands of future aviation.
The contra-rotating fan is one such system which can play an important role in the future engine configurations, such as the hybrid engine configuration that is being investigated in the EU confounded AHEAD project.

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Report on contrails and contrail cirrus climate effects from hybrid BWBs

This report describes the conditions for contrail formation for the AHEAD hybrid engine. Comparisons with contrail formation from a conventional jet engine driven by kerosene are presented and consequences are discussed.

 

Experimental Investigation of the Impact of Axial Air Injection on Swirl-Stabilized, Lean Premixed Hydrogen Flames

Lean premixed combustion allows for fuel-efficient, low emission combustion and is nowa-days state of the art in stationary gas turbines. In the long term, it is also a promising ap-proach for aero engines, when safety issues like flame flashback in the premixer can be overcome. We apply axial air injection in a swirl-stabilized burner in order to achieve a flow field that allows for flashback-proof combustion of premixed hydrogen.

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The AHEAD Project - Advanced Hybrid Enginges for Aircraft Development

Aviation is an ever-increasing market and more passengers and cargo are carried each year. The world is becoming ever more connected. However, this does come at a price: aviation has a marked influence on the environment. If aviation is to thrive in the future, breakthroughs in aircraft design and propulsion systems are needed. The AHEAD project is an attempt at achieving such a breakthrough.

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AHEAD: A research project on advanced hybrid engines for aircraft development - An intermediate report

This paper focuses on the intermediate results of the EC sponsored AHEAD project ( Advanced Hybrid Engines for Aircraft development). The project investigates the possibilities to develop an aircraft and hybrid engines for the future with very low CO2 and NOx emissions to achieve the target for 50% less CO2 emissions in 2050 compared to 2005 as set by IATA. The project is focusing on a hybrid engine that will burn both LNG or LH2 and traditional bio fuels.

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Flow Field Manipulation by Axial Air Injection to Achieve Flashback-Free Operation in Lean Premixed Hydrogen Combustion

Lean premixed combustion allows for fuel ecient, low emission combustion and is nowadays state of the art in stationary gas turbines. In the long term, it is also a promising approach for aero engines, when safety issues like flame flashback in the premixer can be overcome.

Read the whole paper here

 

PERFORMANCE CYCLE ANALYSIS FOR A MULTI-FUEL HYBRID ENGINE

Over the last decades, aviation has become a dominant way of travelling for human beings. However, the global warming and ozone depletion have become the major problems for humankind. Although aviation only counts for a minority of total pollutions, it shouldn’t be ignored any more. Therefore, the ACARE has set an ambitious objective for the year of 2050 to reduce CO2 emission by 75%, NOx emission by 90% and noise emission by 65% compared to these levels in 2000.This reduction is to be achieved by combined improvements in aircraft, propulsion systems and air traffic management systems.
To achieve the ACARE goal, a novel multi-fuel hybrid engine concept was proposed for a multi-fuel blended wing body aircraft.

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