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Laminar flame characteristics of natural gas and dissociated methanol mixtures diluted by nitrogen
journal contribution
posted on 2023-06-09, 17:12 authored by Zhennan Zhu, Kun LiangKun Liang, Dongjian Zeng, Zhongwei Meng, Zinong Zuo, Yiqiang PeiThe effect of dissociated methanol (H2:CO=2:1 by volume) on laminar burning velocity of natural gas (methane as the main component) was studied by using a constant volume bomb (CVB). Nitrogen, as diluent gas, was added into the natural gas (CH4) - dissociated methanol (DM) mixtures to investigate the dilution effect. Experiments were conducted at initial temperature of 343 K and initial pressure of 0.3 MPa with equivalence ratios from 0.8 to 1.4. Laminar burning velocities were calculated through Schlieren photographs, correlation of in-cylinder pressure data and Chemkin-Pro. Results show an increase in laminar burning velocity with initial temperature and proportion of dissociated methanol but a decrease with initial pressure and proportion of nitrogen. The laminar burning velocities were 25.1 cm/s, 38.7 cm/s and 83.2 cm/s respectively at stoichiometric ratio when the proportions of the dissociated methanol were 0%, 40% and 80%. Adding more dissociated methanol tends to shift the peak burning velocity towards the richer side while adding nitrogen has the opposite effect. More dissociated methanol will lead to earlier cellularity.
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Publication status
- Published
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- Accepted version
Journal
Journal of the Energy InstituteISSN
1743-9671Publisher
ElsevierExternal DOI
Department affiliated with
- Engineering and Design Publications
Research groups affiliated with
- Dynamics, Control and Vehicle Research Group Publications
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- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2019-03-12First Open Access (FOA) Date
2020-03-09First Compliant Deposit (FCD) Date
2019-03-09Usage metrics
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