Affiliation:
1. National Technical University of Athens Laboratory of Marine Engineering, School of Naval Architecture and Marine Engineering, , Zografou, Athens 15722 , Greece
Abstract
Abstract
Strict emission regulations and energy security concerns have led to various alternative concepts for the engine operation. Diesel–Methanol dual-fuel combustion solution has gained momentum over the past decade due to the fact that the technology required to convert a pure diesel engine to a dual-fuel one is mature, and methanol is a well-known substance in the industry. However, designing, tuning, and optimizing these engines require fast and reliable simulation models. For this purpose in the present study, a phenomenological combustion model, for a four-stroke port-injected methanol diesel engine, is established. The model is tuned with in-cylinder combustion data. The heat release rate is estimated via a triple-Wiebe function. Ignition delay is modeled with an Arrhenius-type expression, utilizing the methanol and diesel equivalence ratio, among other operational parameters. Other model parameters are obtained from data-driven functions, correlating the basic parameters of the combustion. The data used for model calibration and validation were generated with a computational fluid dynamic numerical model, and it was verified with data provided in the literature.
Subject
Geochemistry and Petrology,Mechanical Engineering,Energy Engineering and Power Technology,Fuel Technology,Renewable Energy, Sustainability and the Environment
Cited by
2 articles.
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