期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 44, 期 18, 页码 9456-9465出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2019.02.058
关键词
Spark ignition engine; Hydrogen direct injection; Hydrogen engine; Thermal efficiency; NOx; Cooling loss
资金
- Council for Science, Technology and Innovation under the Cross-ministerial Strategic Innovation Promotion Program (SIP), Energy Carriers (Funding Agency: JST (Japan Science and Technology Agency))
Thermal efficiency was substantially improved and NOx emissions were reduced to a level at a single-digit ppm with PCC combustion by optimizing such characteristics as the direction, number and diameter of the injected jet and controlling the injection timing and also by combining with combustion of lean mixture. Output power declined by lean mixture was recovered by supercharging in keeping NOx emissions remained at the same level, while thermal efficiency was improved furthermore by slightly re-optimizing jet conditions. As a result, hydrogen engine which does not emit any CO2 and particulate matter in principle is worth to be called near-zero emission engines in both name and reality. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
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