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Type of publication: Straipsnis Clarivate Analytics Web of Science ar/ir Scopus / Article in Clarivate Analytics Web of Science or / and Scopus (S1)
Field of Science: Transporto inžinerija / Transport engineering (T003);Energetika ir termoinžinerija / Energy and thermoengineering (T006)
Author(s): Labeckas, Gvidonas;Slavinskas, Stasys;Kanapkienė, Irena
Title: Study of the effects of biofuel-oxygen of various origins on a CRDI diesel engine combustion and emissions
Is part of: Energies. Basel : MDPI AG, 2019, vol. 12, iss. 7, art. no. 1241
Extent: p. 1-49
Date: 2019
Keywords: Fuel oxygen enrichment;Diesel–HRD fuel blends;Ethanol;Biodiesel;CRDI Diesel engine;Autoignition;Combustion;Heat release;Cyclic variability;Performance;Emissions
Abstract: The paper presents the effects made by a fossil diesel–HRD (Hydrotreated Renewable Diesel) fuel blend containing Ethanol (E) or Biodiesel (B) on the combustion process, Indicated Thermal Efficiency (ITE), smoke, and pollutant emissions when running a turbocharged Common Rail Direct Injection (CRDI) engine under medium (50% of full load), intermediate (80% of full load), and full (100%) loads at maximum torque speed of 2000 rpm. These loads correspond to the respective Indicated Mean Effective Pressures (IMEP) of 0.75, 1.20, and 1.50 MPa, developed for the most common operation of a Diesel engine. The fuel-oxygen mass content was identically increased within the same range of 0 (E0/B0), 0.91 (E1/B1), 1.81 (E2/B2), 2.71 (E3/B3), 3.61 (E4/B4), and 4.52 wt% (E5/B5) in both E and B fuel groups. Nevertheless, these fuels still possessed the same blended cetane number value of 55.5 to extract as many scientific facts as possible about the widely differing effects caused by ethanol or biodiesel properties on the operational parameters of an engine. Both quantitative and qualitative analyses of the effects made by the combustion of the newly designed fuels with the same fuel-oxygen mass contents of various origins on the engine operational parameters were conducted comparing data between themselves and with the respective values measured with the reference (‘baseline’), oxygen-free fuel blend E0/B0 and a straight diesel to reveal the existing developing trends. The study results showed the positive influence of fuel-oxygen on the combustion process, but the fuel oxygen enrichment rate should be neither too high nor too low, but just enough to achieve complete diffusion burning and low emissions
Affiliation(s): Jėgos ir transporto mašinų inžinerijos institutas
Vytauto Didžiojo universitetas
Žemės ūkio akademija
Žemės ūkio inžinerijos fakultetas
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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