Open AccessCombustion Analysis of Various Speed on Hydrogen (H2) in a Direct Injection Diesel Engine Modified to operate as a Low Heat Rejection (LHR)
Author(s) -
S Vandaarkuzhali,
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J. Selvakumar,
P. Balu,
K Muthukumaran,
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AUTHOR_ID,
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Publication year - 2022
Publication title -
ymer
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.103
H-Index - 5
ISSN - 0044-0477
DOI - 10.37896/ymer21.02/01
Subject(s) - compression ratio , materials science , carbureted compression ignition model engine , ignition system , diesel engine , combustion , compression (physics) , diesel fuel , homogeneous charge compression ignition , hydrogen , automotive engineering , cylinder , composite material , internal combustion engine , diesel cycle , combustion chamber , mechanical engineering , chemistry , engineering , aerospace engineering , organic chemistry
The feasibility of using hydrogen as the sole fuel in a direct injection diesel engine was investigated. An air cooled single cylinder diesel engine was modified to operate as a lowheat-rejection engine for this study. Partially stabilized zirconia (PSZ) ceramic parts were used to shield the combustion space of the engine. Using a compression ratio of 17.9:1 and motoring the test engine at 2100 rpm, a maximum compression temperature of approximately 900 K was achieved. Under these operating conditions, all lubricants tested were found to burn. Lowering the speed to 1450 rpm and the compression ratio to 17.1, lubricant combustion and hot spots were successfully eliminated. The maximum compression temperature, when compression ignition of hydrogen was tried, was in the 800 K range. The corresponding ceramic surface temperature was estimated to reach 600- 700 K. Only sporadic compression ignition of hydrogen was achievable