Experimental study on tri-fuel combustion using premixed methane-hydrogen mixtures ignited by a diesel pilot

Qiang Cheng; Zeeshan Ahmad; Ossi Kaario; Ville Vuorinen; Martti Larmi

doi:10.1016/j.ijhydene.2021.03.215

Experimental study on tri-fuel combustion using premixed methane-hydrogen mixtures ignited by a diesel pilot

Qiang Cheng^*, Zeeshan Ahmad, Ossi Kaario, Ville Vuorinen, Martti Larmi

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Tutkimustuotos: Lehtiartikkeli › Article › Scientific › vertaisarvioitu

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216 Lataukset (Pure)

Abstrakti

A comprehensive investigation on diesel pilot spray ignited methane-hydrogen (CH₄–H₂) combustion, tri-fuel combustion (TF), is performed in a single-cylinder compression ignition (CI) engine. The experiments provide a detailed analysis of the effect of H₂ concentration (based on mole fraction, M_H2) and charge-air temperature (T_air) on the ignition behavior, combustion stability, cycle-to-cycle (CCV) and engine performance. The results indicate that adding H₂ from 0 to 60% shortens the ignition delay time (IDT) and combustion duration (based on CA90) up to 33% and 45%, respectively. Thereby, H₂ helps to increase the indicated thermal efficiency (ITE) by as much as 10%. Furthermore, to gain an insight into the combustion stability and CCV, the short-time Fourier transform (STFT) and continuous wavelet transform (CWT) methodologies are applied to estimate the combustion stability and CCV of the TF combustion process. The results reveal that the pressure oscillation can be reduced up to 4 dB/Hz and the CCV by 50% when M_H2 < 60% and T_air < 55 °C. However, when M_H2 > 60% and T_air > 40 °C, abnormal combustion and knocking are observed.

Alkuperäiskieli	Englanti
Sivut	21182-21197
Sivumäärä	16
Julkaisu	International Journal of Hydrogen Energy
Vuosikerta	46
Numero	40
Varhainen verkossa julkaisun päivämäärä	23 huhtik. 2021
DOI - pysyväislinkit	https://doi.org/10.1016/j.ijhydene.2021.03.215
Tila	Julkaistu - 11 kesäk. 2021
OKM-julkaisutyyppi	A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

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10.1016/j.ijhydene.2021.03.215Lisenssi: CC BY-NC-ND

ENG_Cheng_et_al_Experimental_study_on_tri-fuel_International_Journal_of_Hydrogen_EnergyFinal published version, 5,26 MBLisenssi: CC BY-NC-ND

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Linkki julkaisuun Scopuksessa

Kolmen polttoaineen interaktiivinen syttyminen ja palaminen: simulointeja ja kokeita
Vuorinen, V. (Vastuullinen tutkija), Morev, I. (Projektin jäsen), Cheng, Q. (Projektin jäsen), Tamadonfar, P. (Projektin jäsen), Gadalla, M. (Projektin jäsen) & Kannan, J. (Projektin jäsen)
01/09/2018 → 31/08/2022
Projekti: Academy of Finland: Other research funding
Uusia näkökulmia laihan kaasuseoksen syttymiseen
Ahmad, Z. (Projektin jäsen), Larmi, M. (Vastuullinen tutkija), Ainsalo, A. (Projektin jäsen), Hassan, G. (Projektin jäsen), Cheng, Q. (Projektin jäsen), Keskinen, K. (Projektin jäsen) & Kaario, O. (Projektin jäsen)
01/09/2016 → 31/12/2020
Projekti: Academy of Finland: Other research funding

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title = "Experimental study on tri-fuel combustion using premixed methane-hydrogen mixtures ignited by a diesel pilot",

abstract = "A comprehensive investigation on diesel pilot spray ignited methane-hydrogen (CH4–H2) combustion, tri-fuel combustion (TF), is performed in a single-cylinder compression ignition (CI) engine. The experiments provide a detailed analysis of the effect of H2 concentration (based on mole fraction, MH2) and charge-air temperature (Tair) on the ignition behavior, combustion stability, cycle-to-cycle (CCV) and engine performance. The results indicate that adding H2 from 0 to 60% shortens the ignition delay time (IDT) and combustion duration (based on CA90) up to 33% and 45%, respectively. Thereby, H2 helps to increase the indicated thermal efficiency (ITE) by as much as 10%. Furthermore, to gain an insight into the combustion stability and CCV, the short-time Fourier transform (STFT) and continuous wavelet transform (CWT) methodologies are applied to estimate the combustion stability and CCV of the TF combustion process. The results reveal that the pressure oscillation can be reduced up to 4 dB/Hz and the CCV by 50% when MH2 < 60% and Tair < 55 °C. However, when MH2 > 60% and Tair > 40 °C, abnormal combustion and knocking are observed.",

keywords = "CCV, Combustion stability, Engine performance, Ignition behavior, Tri-fuel",

author = "Qiang Cheng and Zeeshan Ahmad and Ossi Kaario and Ville Vuorinen and Martti Larmi",

note = "Funding Information: The present study has been financially supported by the Academy of Finland (Grant Nos. 297248 and 318024 ) and Fortum-Neste Foundation (grant no. 2020050 ), which are gratefully acknowledged. The second author has also been financially supported by the Henry-Ford foundation under grant no. 202000063 . The authors are thankful to Ranta Olli and Blomstedt Otto for their supports on the engine preparations. Publisher Copyright: {\textcopyright} 2021 The Authors",

year = "2021",

month = jun,

day = "11",

doi = "10.1016/j.ijhydene.2021.03.215",

language = "English",

volume = "46",

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T1 - Experimental study on tri-fuel combustion using premixed methane-hydrogen mixtures ignited by a diesel pilot

AU - Cheng, Qiang

AU - Ahmad, Zeeshan

AU - Kaario, Ossi

AU - Vuorinen, Ville

AU - Larmi, Martti

N1 - Funding Information: The present study has been financially supported by the Academy of Finland (Grant Nos. 297248 and 318024 ) and Fortum-Neste Foundation (grant no. 2020050 ), which are gratefully acknowledged. The second author has also been financially supported by the Henry-Ford foundation under grant no. 202000063 . The authors are thankful to Ranta Olli and Blomstedt Otto for their supports on the engine preparations. Publisher Copyright: © 2021 The Authors

PY - 2021/6/11

Y1 - 2021/6/11

N2 - A comprehensive investigation on diesel pilot spray ignited methane-hydrogen (CH4–H2) combustion, tri-fuel combustion (TF), is performed in a single-cylinder compression ignition (CI) engine. The experiments provide a detailed analysis of the effect of H2 concentration (based on mole fraction, MH2) and charge-air temperature (Tair) on the ignition behavior, combustion stability, cycle-to-cycle (CCV) and engine performance. The results indicate that adding H2 from 0 to 60% shortens the ignition delay time (IDT) and combustion duration (based on CA90) up to 33% and 45%, respectively. Thereby, H2 helps to increase the indicated thermal efficiency (ITE) by as much as 10%. Furthermore, to gain an insight into the combustion stability and CCV, the short-time Fourier transform (STFT) and continuous wavelet transform (CWT) methodologies are applied to estimate the combustion stability and CCV of the TF combustion process. The results reveal that the pressure oscillation can be reduced up to 4 dB/Hz and the CCV by 50% when MH2 < 60% and Tair < 55 °C. However, when MH2 > 60% and Tair > 40 °C, abnormal combustion and knocking are observed.

AB - A comprehensive investigation on diesel pilot spray ignited methane-hydrogen (CH4–H2) combustion, tri-fuel combustion (TF), is performed in a single-cylinder compression ignition (CI) engine. The experiments provide a detailed analysis of the effect of H2 concentration (based on mole fraction, MH2) and charge-air temperature (Tair) on the ignition behavior, combustion stability, cycle-to-cycle (CCV) and engine performance. The results indicate that adding H2 from 0 to 60% shortens the ignition delay time (IDT) and combustion duration (based on CA90) up to 33% and 45%, respectively. Thereby, H2 helps to increase the indicated thermal efficiency (ITE) by as much as 10%. Furthermore, to gain an insight into the combustion stability and CCV, the short-time Fourier transform (STFT) and continuous wavelet transform (CWT) methodologies are applied to estimate the combustion stability and CCV of the TF combustion process. The results reveal that the pressure oscillation can be reduced up to 4 dB/Hz and the CCV by 50% when MH2 < 60% and Tair < 55 °C. However, when MH2 > 60% and Tair > 40 °C, abnormal combustion and knocking are observed.

KW - CCV

KW - Combustion stability

KW - Engine performance

KW - Ignition behavior

KW - Tri-fuel

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DO - 10.1016/j.ijhydene.2021.03.215

M3 - Article

AN - SCOPUS:85107400897

SN - 0360-3199

VL - 46

SP - 21182

EP - 21197

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

IS - 40

ER -

Experimental study on tri-fuel combustion using premixed methane-hydrogen mixtures ignited by a diesel pilot

Abstrakti

YK:n kestävän kehityksen tavoitteet

Pääsy asiakirjaan

Muut tiedostot ja linkit

Sormenjälki

Projektit

Kolmen polttoaineen interaktiivinen syttyminen ja palaminen: simulointeja ja kokeita

Uusia näkökulmia laihan kaasuseoksen syttymiseen

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