The comparative and combined effects of hydrogen addition on the laminar burning velocities of methane and its blends with ethane and propane
Nilsson, Elna J K LU
; van Sprang, Astrid
; Larfeldt, Jenny
LU
and Konnov, Alexander A.
LU
(2017)
In Fuel
189.
p.369-376
- Abstract
Laminar burning velocities of hydrocarbon blends of relevance to natural gas combustion, with addition of 0, 10, 35 and 50% hydrogen, were measured using the heat flux method. Hydrocarbon blends were methane (80%)/ethane (20%), methane (80%)/propane (20%) and methane (80%)/ethane (10%)/propane (10%), and in addition experiments were performed using pure methane as a fuel. For the first time it was shown experimentally that hydrogen promotes laminar burning velocity of blends with heavier hydrocarbons to a smaller extent than the well-studied effect on methane. Measurements show that enrichment by hydrogen results in 20–40% lower increase in laminar burning velocity for hydrocarbon blends compared to pure methane, depending on... (More)
Laminar burning velocities of hydrocarbon blends of relevance to natural gas combustion, with addition of 0, 10, 35 and 50% hydrogen, were measured using the heat flux method. Hydrocarbon blends were methane (80%)/ethane (20%), methane (80%)/propane (20%) and methane (80%)/ethane (10%)/propane (10%), and in addition experiments were performed using pure methane as a fuel. For the first time it was shown experimentally that hydrogen promotes laminar burning velocity of blends with heavier hydrocarbons to a smaller extent than the well-studied effect on methane. Measurements show that enrichment by hydrogen results in 20–40% lower increase in laminar burning velocity for hydrocarbon blends compared to pure methane, depending on stoichiometry. Modeling points at the importance of increasing concentrations of OH, O and H radicals in H2 enriched flames. At lean conditions increase in H atom concentration is of particular importance. The results are rationalized based on asymptotic flame theory analysis.
(Less)
- author
- Nilsson, Elna J K
LU
; van Sprang, Astrid
; Larfeldt, Jenny
LU
and Konnov, Alexander A.
LU
- organization
- publishing date
- 2017-02-01
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Ethane, Flame enhancement, Hydrogen, Laminar burning velocity, Methane, Propane
- in
- Fuel
- volume
- 189
- pages
- 8 pages
- publisher
- Elsevier
- external identifiers
-
- wos:000387775500036
- scopus:84994508094
- ISSN
- 0016-2361
- DOI
- 10.1016/j.fuel.2016.10.103
- language
- English
- LU publication?
- yes
- id
- b9dea9e2-581f-4dee-9226-cfb966f0c51c
- date added to LUP
- 2017-02-06 07:46:02
- date last changed
- 2024-04-14 04:06:18
@article{b9dea9e2-581f-4dee-9226-cfb966f0c51c,
abstract = {{<p>Laminar burning velocities of hydrocarbon blends of relevance to natural gas combustion, with addition of 0, 10, 35 and 50% hydrogen, were measured using the heat flux method. Hydrocarbon blends were methane (80%)/ethane (20%), methane (80%)/propane (20%) and methane (80%)/ethane (10%)/propane (10%), and in addition experiments were performed using pure methane as a fuel. For the first time it was shown experimentally that hydrogen promotes laminar burning velocity of blends with heavier hydrocarbons to a smaller extent than the well-studied effect on methane. Measurements show that enrichment by hydrogen results in 20–40% lower increase in laminar burning velocity for hydrocarbon blends compared to pure methane, depending on stoichiometry. Modeling points at the importance of increasing concentrations of OH, O and H radicals in H<sub>2</sub> enriched flames. At lean conditions increase in H atom concentration is of particular importance. The results are rationalized based on asymptotic flame theory analysis.</p>}},
author = {{Nilsson, Elna J K and van Sprang, Astrid and Larfeldt, Jenny and Konnov, Alexander A.}},
issn = {{0016-2361}},
keywords = {{Ethane; Flame enhancement; Hydrogen; Laminar burning velocity; Methane; Propane}},
language = {{eng}},
month = {{02}},
pages = {{369--376}},
publisher = {{Elsevier}},
series = {{Fuel}},
title = {{The comparative and combined effects of hydrogen addition on the laminar burning velocities of methane and its blends with ethane and propane}},
url = {{http://dx.doi.org/10.1016/j.fuel.2016.10.103}},
doi = {{10.1016/j.fuel.2016.10.103}},
volume = {{189}},
year = {{2017}},
}