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Heavy fuel preparation effects on the operation of a spark ignition unmanned aerial vehicle engine

Peter Hooper (Department of Engineering Research, Bernard Hooper Engineering Ltd., Wolverhampton, UK)

Aircraft Engineering and Aerospace Technology

ISSN: 0002-2667

Article publication date: 11 September 2024

Issue publication date: 30 September 2024

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Abstract

Purpose

This paper aims to conduct an experimental and theoretical investigation into fuel pre-delivery effects for a heavy fuel crankcase scavenged spark ignition two-stroke cycle engine for unmanned aerial vehicle application.

Design/methodology/approach

One-dimensional computational fluid dynamic modelling of the engine system using WAVE software supported by experimental dynamometer testing of the subject engine with kerosene JET A-1 and gasoline and fuels.

Findings

The experimental research has shown performance improvements using fuel preheating via use of auxiliary transfer port fuel injection. Computational simulation has allowed comparisons with auxiliary transfer port injection and direct in-cylinder injection to be made.

Practical implications

While some heavy fuel engines are now available for unmanned aerial vehicles the best solution to meet the military equipment single fuel policy remains an area of evolving research. The findings within this study show possibilities for fuel pre-treatment.

Originality/value

One-dimensional computational fluid dynamic modelling of the engine system using WAVE software supported by experimental dynamometer testing of the subject engine with kerosene JET A-1 and gasoline fuels.

Keywords

Acknowledgements

The provision of WAVE by Ricardo is gratefully acknowledged by the author. Without this support, the simulations would not have been able to be performed during the study reported in this paper.

Citation

Hooper, P. (2024), "Heavy fuel preparation effects on the operation of a spark ignition unmanned aerial vehicle engine", Aircraft Engineering and Aerospace Technology, Vol. 96 No. 9, pp. 1216-1224. https://doi.org/10.1108/AEAT-04-2023-0111

Publisher

:

Emerald Publishing Limited

Copyright © 2024, Emerald Publishing Limited

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