TDLAS-based in situ diagnostics for the combustion of preheated ultra–lean dimethyl ether/air mixtures

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F20%3A00517547" target="_blank" >RIV/61388955:_____/20:00517547 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11320/20:10422635 RIV/61989100:27200/20:10243738 RIV/61989100:27230/20:10243738 RIV/61989100:27240/20:10243738 RIV/61989100:27740/20:10243738

Výsledek na webu

<a href="http://hdl.handle.net/11104/0302882" target="_blank" >http://hdl.handle.net/11104/0302882</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.fuel.2019.116652" target="_blank" >10.1016/j.fuel.2019.116652</a>

Jazyk výsledku

angličtina

Název v původním jazyce

TDLAS-based in situ diagnostics for the combustion of preheated ultra–lean dimethyl ether/air mixtures

Popis výsledku v původním jazyce

A combined experimental and modelling study of the structure of a laminar premixed ultra–lean () dimethyl ether/air flame at atmospheric pressure and an elevated temperature was carried out. The work aimed to apply tunable diode laser absorption spectroscopy to the identification of various flame regimes that are relevant to the oxidation of dimethyl ether. One-dimensional calculations employing burner-stabilized flame assumptions confirmed the significance of low-temperature combustion chemistry. A stable double-flame structure was predicted using state-of-the-art chemical kinetic schemes and was revealed by the experimental observations. The feasibility of the novel experimental strategy based on the preheated flat-flame burner and scanned wavelength modulation spectroscopy was investigated in this context. The absorption features of hot water and the hydroxyl radical near 1572 nm were selected as appropriate targets for distinguishing the transition from the cool flame regime to the hot flame regime. Discrepancies in the water line position and intensities were found within the 1509 nm region.

Název v anglickém jazyce

TDLAS-based in situ diagnostics for the combustion of preheated ultra–lean dimethyl ether/air mixtures

Popis výsledku anglicky

A combined experimental and modelling study of the structure of a laminar premixed ultra–lean () dimethyl ether/air flame at atmospheric pressure and an elevated temperature was carried out. The work aimed to apply tunable diode laser absorption spectroscopy to the identification of various flame regimes that are relevant to the oxidation of dimethyl ether. One-dimensional calculations employing burner-stabilized flame assumptions confirmed the significance of low-temperature combustion chemistry. A stable double-flame structure was predicted using state-of-the-art chemical kinetic schemes and was revealed by the experimental observations. The feasibility of the novel experimental strategy based on the preheated flat-flame burner and scanned wavelength modulation spectroscopy was investigated in this context. The absorption features of hot water and the hydroxyl radical near 1572 nm were selected as appropriate targets for distinguishing the transition from the cool flame regime to the hot flame regime. Discrepancies in the water line position and intensities were found within the 1509 nm region.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Fuel

ISSN

0016-2361

e-ISSN

—

Svazek periodika

263

Číslo periodika v rámci svazku

MAR 2020

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

7

Strana od-do

116652

Kód UT WoS článku

000504834400123

EID výsledku v databázi Scopus

2-s2.0-85076015549