Study of Unconventional Cycles (Atkinson and Miller) with Mixture Heating as a Means for the Fuel Economy Improvement of a Throttled SI Engine at Part Load

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F12%3A00202128" target="_blank" >RIV/68407700:21220/12:00202128 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Study of Unconventional Cycles (Atkinson and Miller) with Mixture Heating as a Means for the Fuel Economy Improvement of a Throttled SI Engine at Part Load

Popis výsledku v původním jazyce

This contribution is focused on an investigation of two well-known techniques, i.e. the modified Atkinson working cycle with a late intake valve closing (LIVC) and the Miller working cycle with an extreme early intake valve closing (EIVC) in order to increase the fuel economy of a throttled SI engine at a part load (high throttled mode). A commercial 1-D code was utilized in order to calculate the in-cylinder pressure and the fuel economy improvement for both unconventional cycles with and without mixture heating. A predictive turbulent flame model for SI engine, as a part of applied 1-D code, was used for combustion calculation. Data from experiments carried out on the SI engine with the Otto cycle were used for calibration of the engine model. Basedon results from simulations, a significant increase in fuel economy improvement has been observed compared to the Otto cycle, especially due to the application of the Miller cycle. Further fuel economy improvement has been achieved due to

Název v anglickém jazyce

Study of Unconventional Cycles (Atkinson and Miller) with Mixture Heating as a Means for the Fuel Economy Improvement of a Throttled SI Engine at Part Load

Popis výsledku anglicky

This contribution is focused on an investigation of two well-known techniques, i.e. the modified Atkinson working cycle with a late intake valve closing (LIVC) and the Miller working cycle with an extreme early intake valve closing (EIVC) in order to increase the fuel economy of a throttled SI engine at a part load (high throttled mode). A commercial 1-D code was utilized in order to calculate the in-cylinder pressure and the fuel economy improvement for both unconventional cycles with and without mixture heating. A predictive turbulent flame model for SI engine, as a part of applied 1-D code, was used for combustion calculation. Data from experiments carried out on the SI engine with the Otto cycle were used for calibration of the engine model. Basedon results from simulations, a significant increase in fuel economy improvement has been observed compared to the Otto cycle, especially due to the application of the Miller cycle. Further fuel economy improvement has been achieved due to

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JT - Pohon, motory a paliva

OECD FORD obor

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Projekt

<a href="/cs/project/ED2.1.00%2F03.0125" target="_blank" >ED2.1.00/03.0125: Pořízení technologie pro Centrum vozidel udržitelné mobility</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2012

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

SAE International Journal of Engines

ISSN

1946-3936

e-ISSN

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Svazek periodika

5

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

13

Strana od-do

1624-1636

Kód UT WoS článku

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EID výsledku v databázi Scopus

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