Study on combustion characteristics of dimethyl ether and hydrogen blends based on a rapid compression machine

Zhi Cheng Shi; Hai Tao Lu; Hao Liu; Hong Guang Zhang

Study on combustion characteristics of dimethyl ether and hydrogen blends based on a rapid compression machine

Zhi Cheng Shi, Hai Tao Lu, Hao Liu, Hong Guang Zhang^*

^*Corresponding author for this work

School of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

Effects of the hydrogen blending ratio, equivalence ratio and compressed pressure on the ignition delay time of DME/H₂/O₂/N₂ mixture are investigated using a rapid compression machine (RCM) at compressed temperature of 650~830 K, compressed pressure of 1.94~2.45 MPa, equivalence ratio of 0.83~1.25 and nitrogen dilution ratio of 89.74% in this study. Kinetics model was built to predict the ignition delay time and simulate the combustion process. The results show that: with the increasing hydrogen blending ratio, there is only little change about the first stage ignition delay time of DME/H₂/O₂/N₂ mixture, and the total ignition delay time extends; with the increasing equivalence ratio and compressed pressure, the first stage ignition delay time of the DME/H₂/O₂/N₂ mixture only has little change, and the total ignition delay time shortens.

Original language	English
Pages (from-to)	1345-1353
Number of pages	9
Journal	Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics
Volume	37
Issue number	6
Publication status	Published - 1 Jun 2016

Keywords

Dimethyl ether
Hydrogen
Ignition delay time
Rapid compression machine

Cite this

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title = "Study on combustion characteristics of dimethyl ether and hydrogen blends based on a rapid compression machine",

abstract = "Effects of the hydrogen blending ratio, equivalence ratio and compressed pressure on the ignition delay time of DME/H2/O2/N2 mixture are investigated using a rapid compression machine (RCM) at compressed temperature of 650~830 K, compressed pressure of 1.94~2.45 MPa, equivalence ratio of 0.83~1.25 and nitrogen dilution ratio of 89.74% in this study. Kinetics model was built to predict the ignition delay time and simulate the combustion process. The results show that: with the increasing hydrogen blending ratio, there is only little change about the first stage ignition delay time of DME/H2/O2/N2 mixture, and the total ignition delay time extends; with the increasing equivalence ratio and compressed pressure, the first stage ignition delay time of the DME/H2/O2/N2 mixture only has little change, and the total ignition delay time shortens.",

keywords = "Dimethyl ether, Hydrogen, Ignition delay time, Rapid compression machine",

author = "Shi, {Zhi Cheng} and Lu, {Hai Tao} and Hao Liu and Zhang, {Hong Guang}",

year = "2016",

month = jun,

day = "1",

language = "English",

volume = "37",

pages = "1345--1353",

journal = "Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics",

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TY - JOUR

T1 - Study on combustion characteristics of dimethyl ether and hydrogen blends based on a rapid compression machine

AU - Shi, Zhi Cheng

AU - Lu, Hai Tao

AU - Liu, Hao

AU - Zhang, Hong Guang

PY - 2016/6/1

Y1 - 2016/6/1

N2 - Effects of the hydrogen blending ratio, equivalence ratio and compressed pressure on the ignition delay time of DME/H2/O2/N2 mixture are investigated using a rapid compression machine (RCM) at compressed temperature of 650~830 K, compressed pressure of 1.94~2.45 MPa, equivalence ratio of 0.83~1.25 and nitrogen dilution ratio of 89.74% in this study. Kinetics model was built to predict the ignition delay time and simulate the combustion process. The results show that: with the increasing hydrogen blending ratio, there is only little change about the first stage ignition delay time of DME/H2/O2/N2 mixture, and the total ignition delay time extends; with the increasing equivalence ratio and compressed pressure, the first stage ignition delay time of the DME/H2/O2/N2 mixture only has little change, and the total ignition delay time shortens.

AB - Effects of the hydrogen blending ratio, equivalence ratio and compressed pressure on the ignition delay time of DME/H2/O2/N2 mixture are investigated using a rapid compression machine (RCM) at compressed temperature of 650~830 K, compressed pressure of 1.94~2.45 MPa, equivalence ratio of 0.83~1.25 and nitrogen dilution ratio of 89.74% in this study. Kinetics model was built to predict the ignition delay time and simulate the combustion process. The results show that: with the increasing hydrogen blending ratio, there is only little change about the first stage ignition delay time of DME/H2/O2/N2 mixture, and the total ignition delay time extends; with the increasing equivalence ratio and compressed pressure, the first stage ignition delay time of the DME/H2/O2/N2 mixture only has little change, and the total ignition delay time shortens.

KW - Dimethyl ether

KW - Hydrogen

KW - Ignition delay time

KW - Rapid compression machine

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SN - 0253-231X

VL - 37

SP - 1345

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JO - Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics

JF - Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics

IS - 6

ER -

Study on combustion characteristics of dimethyl ether and hydrogen blends based on a rapid compression machine

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Keywords

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