In-cycle control for stabilization of homogeneous charge compression ignition combustion using direct water injection

Maximilian Wick, Julian Bedei, David Gordon, Christian Wouters, Bastian Lehrheuer, Eugen Nuss, Jakob Andert and Charles Robert Koch

Applied Energy, 2019, vol. 240, issue C, 1074 pages

Abstract: Homogeneous charge compression ignition offers a high potential for the reduction of CO2 and NOx raw emissions; however, its use entails problems that are associated with low combustion stability, especially at the limits of the operating range. The recirculation of exhaust gases inside the combustion chamber by using a negative valve overlap leads to a strong coupling of consecutive cycles. The cyclic coupling induces phases of unstable operation after the occurrence of stochastic outlier cycles with misfire or incomplete combustion. These unstable phases are marked by reduced efficiency and increased emissions.

Keywords: Gasoline Controlled Auto Ignition (GCAI); Homogeneous charge compression ignition (HCCI); Field programmable gate array (FPGA); Cylinder pressure indication; In-cycle control; Direct water injection (search for similar items in EconPapers)
Date: 2019
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Citations: View citations in EconPapers (6)

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DOI: 10.1016/j.apenergy.2019.01.086

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