@inbook{ee6094d823fd4d2390255a12548c35b9,
title = "Comparison of laser ignition and torch ignition in a subscale rocket combustor",
abstract = "The controlled ignition of combustion chambers of rocket engines is a essential process during the operation of an engine and is in particular challenging if multiple ignitions are necessary during a space mission. During the last decade, laser-based ignition methods have been studied in detail, triggered by the availability of miniaturized diode-pumped solid-state lasers. This paper gives an overview of recent test results and achievements for laser-based ignition technologies obtained in the Rocket Propulsion Department at the German Aerospace Center (DLR), Lampoldshausen. Those tests proved the compatibility, reliability and re-usability for a variation of injector geometries for both LOX/hydrogen and LOX/methane and for sub-atmospheric to ambient pre-injection pressure levels. In particular, the spatial and time resolved pressure dynamics within a subscale combustion chamber for the ignition by a laser igniter and a torch igniter are compared. Based on recently obtained test results, development options like fiber-based systems are shortly discussed in the context of clustered engine architectures of future launcher systems.",
author = "Michael B{\"o}rner and Chiara Manfletti and Justin Hardi and Dmitry Suslov and Michael Oschwald and Gerhard Kroupa",
year = "2018",
doi = "10.2514/6.2018-4946",
language = "English",
isbn = "9781624105708",
series = "2018 Joint Propulsion Conference",
booktitle = "2018 Joint Propulsion Conference",
}