2026-04-27T21:41:45Zhttps://uvadoc.uva.es/oai/requestoai:uvadoc.uva.es:10324/286642021-06-24T02:09:52Zcom_10324_30605com_10324_894col_10324_41
UVaDOC
advisor
Giménez Olavarría, Blanca
advisor
Kettner, Maurice
author
Scholl, Fino
editor
Universidad de Valladolid. Escuela de Ingenierías Industriales
2018-02-22T08:34:14Z
2018-02-22T08:34:14Z
2017
http://uvadoc.uva.es/handle/10324/28664
b1788633
10.35376/10324/28664
Lean-burn combustion of premixed air-natural-gas mixtures enables small-scale stationary gas engines to operate at high engine efficiency while emitting low levels of CO2 and pollutants. Increasingly stringent limits for nitrogen oxides, however, pose a major challenge to lean-burn operation if the aim is to meet the new limits through combustion-related measures without losses in engine efficiency. As alternative to spark ignition, a new Hot Surface Ignition (HSI) system was developed that facilitates a rapid and safe ignition of more diluted mixtures. The system essentially consists of a shielded ceramic glow plug, whose temperature can be controlled in a highly dynamic manner by adjusting the voltage applied, thereby allowing for the phasing of combustion to be adjusted during engine operation.
The present work describes the systematic methodology adopted to study the process of HSI induced combustion. For an in-depth analysis of the ignition process and the subsequent flame propagation, a combined approach of 3D fluid dynamics and combustion simulation and engine experiments with multiple single-fibre optical accesses to the combustion chamber is pursued. Design of Experiments (DoE) methods are used to determine the ignition system’s operation limits and to study the effect of several operating parameters, like intake manifold pressure and relative air-fuel ratio, on the combustion process and the thermo-electric properties of the glow plug.
eng
Attribution-NonCommercial-NoDerivatives 4.0 International
Motores de combustion interna
Gas natural
Study of premixed combustion induced by controlled hot surface ignition in stationary gas engines
info:eu-repo/semantics/doctoralThesis
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
URL
https://uvadoc.uva.es/bitstream/10324/28664/1/Tesis1360-180222.pdf
File
MD5
6a66918fa35f47ac74cf4d41e7426882
45536323
application/pdf
Tesis1360-180222.pdf