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Title:Methodology improvements to simulate performance and emissions of engine transient cycles from stationary operating modes: A case study applied to biofuels
Authors:ID Cruz-Peragón, Fernando (Author)
ID Torres Jiménez, Eloisa (Author)
ID Lešnik, Luka (Author)
ID Armas, Octavio (Author)
Files:.pdf Methodology_improvements_to-Cruz-Peragon-2022.pdf (13,39 MB)
MD5: B350B344A97BF8FAFE9BD19D54D432EA
 
URL https://www.sciencedirect.com/science/article/pii/S0016236121028386?via%3Dihub
 
Language:English
Work type:Scientific work
Typology:1.01 - Original Scientific Article
Organization:FS - Faculty of Mechanical Engineering
Abstract:In the present study engine/vehicle responses from a standardized transient test cycle are estimated using 13 stationary operating regimes following a previously developed methodology. The main advantage of the methodology tested is that allows obtaining an estimation of transient parameters in a stationary test bench, which requirements are much less demanding than those of the transient test bench. The objectives are: in one hand, to demonstrate that the methodology correctly estimates engine responses regardless of the fuel tested, as it is proposed in a previous paper and, on the other hand, to improve the methodology and the accuracy of the estimated parameters. The fuels tested are renewable fuels from different raw materials (biodiesel from rapeseed, sunflower, and soybean), and diesel fuel as the reference. Biodiesels were tested neat and blended (30% v/v) with diesel fuel. The engine is a common-rail light-duty one, and the standardized testing procedure used to illustrate the implementation of the methodology is the New European Driving Cycle (NEDC). Two design of experiments (DoE) of 13 runs each were analyzed. One of the DoE tested was proposed for characterizing the NEDC, referred as to CTDoE design, while the other one is a five-level fractional factorial design (FFDoE) that adequately matches the optimality criteria of orthogonality, D-optimal criterion, rotatability, and space-filling. The original methodology was improved by the implementation of a new fitting function that simulates the cold start effect over the engine parameters and by an new definition of the boundary in the [n,M] domain. These improvements showed significantly higher accuracy of the estimated engine parameters obtained, both instantaneous and accumulated, respect to the original methodology. The results obtained based on the application of the FFDoE design support the feasibility of the methodology tested. Engine performance and regulated emissions responses, such as intake air and fuel mass flow rate, thermomechanical exergy rate, exhaust gas residual heat rate, total hydrocarbons (THC), nitrogen oxides (NOx), carbon monoxide (CO) and particulate matter (PM) emissions from a transient test were instantaneously and cumulatively predicted with high accuracy using the engine responses from 13 steady-state operating modes.
Keywords:simulation, light duty diesel engine, transient cycle, biodiesel, design of experiments, cold start correction function
Publication status:Published
Publication version:Version of Record
Submitted for review:15.10.2021
Article acceptance date:14.12.2021
Publication date:27.12.2021
Publisher:Elsevier
Year of publishing:2022
Number of pages:14 str., št. članka 122977
Numbering:Letn. 312
PID:20.500.12556/DKUM-85954 New window
UDC:621.436:004.94
ISSN on article:0016-2361
COBISS.SI-ID:92192771 New window
DOI:10.1016/j.fuel.2021.122977 New window
Copyright:© 2021 The Authors.
Publication date in DKUM:21.09.2023
Views:350
Downloads:614
Metadata:XML DC-XML DC-RDF
Categories:Misc.
:
CRUZ-PERAGÓN, Fernando, TORRES JIMÉNEZ, Eloisa, LEŠNIK, Luka and ARMAS, Octavio, 2022, Methodology improvements to simulate performance and emissions of engine transient cycles from stationary operating modes: A case study applied to biofuels. Fuel [online]. 2022. Vol. 312. [Accessed 13 April 2025]. DOI 10.1016/j.fuel.2021.122977. Retrieved from: https://dk.um.si/IzpisGradiva.php?lang=eng&id=85954
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Record is a part of a journal

Title:Fuel
Shortened title:Fuel
Publisher:Elsevier
ISSN:0016-2361
COBISS.SI-ID:37399 New window

Document is financed by a project

Funder:the Spanish Ministry of Science, Innovation, and Universities
Project number:RTI2018-095923-B-C21

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

Language:Slovenian
Keywords:simulacije, lahki dizelski motorji, poraba goriva, načrtovanje s poskusi, funkcija korekcije hladnega zagona


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