期刊
ENERGY
卷 189, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.energy.2019.116238
关键词
Calophyllum inophyllum; Babul wood; Inlet valve mask angle; Nozzle geometry; Nitrogen oxide; Smoke opacity
The present paper briefly elaborates the influence of inlet valve masking (IVM) and nozzle hole configuration on performance, emission and combustion behaviour of a single cylinder water cooled turbo-charged engine fuelled with Calophyllum inophyllum as injected fuel and babul wood chip generated producer gas from a downdraft gasifier as inducted fuel with modified mask angle and nozzle hole configuration keeping compression ratio, speed, injection parameters constant. Experimental results depicted a lower brake thermal efficiency of (2.1%down arrow and 3.3%down arrow) and exhaust gas temperature of (50.3%down arrow and 49.6%down arrow) with increased specific fuel consumption by (3.7%up arrow and 4.3%up arrow) for IVM-90 and 4-hole nozzle. Considering emission characteristics, smoke opacity and nitric oxide were reduced by (42.7%down arrow and 48.1%down arrow) for IVM-90 and (32.4%down arrow and 41.7%down arrow) for 4-hole nozzle, with a marginal increment in carbon monoxide and hydrocarbon by (16.6%up arrow and 4.5%up arrow) for IVM-90, while (16.7%up arrow and 6.7%up arrow) for 4-hole nozzle. Moreover, heat release rate and cylinder pressure were on higher side in contrast to diesel injected single fuel mode. Hence, introduction of valve mask and modified nozzle hole with inducted gaseous fuel in dual fuel mode has proven to be effective in enhancing engine performance and combustion characteristics, thereby reducing emission levels. (C) 2019 Elsevier Ltd. All rights reserved.
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