Investigation on the explosion limits and flame propagation characteristics of premixed methanol-gasoline blends

Sun, Yanlong; Qian, Xinming; Yuan, Mengqi; Zhang, Qi; Li, Ziyuan

doi:10.1016/j.csite.2021.101000

Cited by 19 publications

(3 citation statements)

References 19 publications

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“…The explosion limit range stands as a pivotal parameter for assessing explosion risks [36,37]. In the context of this study, the measured methane explosion limit spans from 5.22% to 15.51%, yielding a range of 10.29%.…”

Section: Influence Of Flue Gas On Methane Explosion Limit Rangementioning

confidence: 99%

Investigating the Influence of Flue Gas Induced by Coal Spontaneous Combustion on Methane Explosion Risk

Hu,

Li,

Zhu

et al. 2024

Fire

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During the process of coal spontaneous combustion (CSC), a plethora of combustible gases alongside inert gases, such as CO2, are copiously generated. However, prior investigations have regrettably overlooked the pivotal influence of inert gas production on the propensity for methane explosions during CSC. To investigate the impact of the flue gas environment generated by CSC, containing both combustible and inert gases, on the risk of methane explosion, a high-temperature programmed heating test system for CSC was employed to analyze the generation pattern of flue gas. It was found that CO, CO2, and CH4 were continuously generated in large quantities during the process of CSC, which are the main components of CSC flue gas. The effect of the concentration and component ratio (CCO2/CCO) of the flue gas on the methane explosion limit was tested. It was found that the CSC flue gas led to a decrease in the methane explosion limit, and that the explosion limit range was facilitated at 0 < CCO2/CCO < 0.543 and suppressed at CCO2/CCO > 0.543. As the temperature of CSC increases, the risk of methane explosion is initially suppressed. When the coal temperature exceeds 330~410 °C, the explosion risk rapidly expands.

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Section: Influence Of Flue Gas On Methane Explosion Limit Rangementioning

confidence: 99%

Investigating the Influence of Flue Gas Induced by Coal Spontaneous Combustion on Methane Explosion Risk

Hu,

Li,

Zhu

et al. 2024

Fire

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“…Methanol merupakan salah satu bahan bakar alkohol yang mempunyai kadar oksigen tinggi dan juga memiliki kadar oktan yang tinggi dibanding dengan pertamax. Salah satu peneliti yang dilakukan oleh firman, dkk [8] bahan bakar akan mengalami peningkatan dikarenakan kandungan pada bahan bakar methanol yaitu tingginya massa jenis sehingga mengakibatkan pembakaran pada mesin kendaraan motor menjadi lebih banyak serta pada nilai kalor pada bahan bakar methanol dibanding dengan pertamax yang rendah mengakibatkan kebutuhan akan bahan bakar dalam silinder menjadi lebih banyak [9], [10]. Pada penelitian yang dilakukan syarifudin, dkk [10] emisi gas buang mengalami penurunan dikarenakan tingginya kadar oksigen sehingga mampu mereduksi emisi dan juga mampu membantu proses pembakaran [11], [12].…”

Section: Pendahuluanunclassified

“…Karbon ini dikonversikan langsung selama proses pembakaran menyebabkan emisi CO secara bertahap berkurang pada saat ditambahkan methanol. Kadar oksigen yang tinggi pada methanol dibandingkan dengan pertamax juga mempengaruhi reaksi pembakaran didalam mesin yang berakibat mengurangi kandungan emisi CO [9], [15], [16].…”

Section: Hasil Dan Pembahasan 31 Emisi Gas Buang Karbon Monoksida (Co)unclassified

Pengaruh Penambahan methanol Terhadap Emisi Bahan Bakar Mesin Sepeda Motor Berbahan Bakar Pertamax 150 CC

Fatkhurrozak,

Sanjaya,

Syarifudin

et al. 2023

infotekmesin

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Automotive vehicles have increased every year, especially motorcycles, which result in increased air pollution. The use of alternative fuel methanol is one of the solutions to control air pollution. methanol has a high oxygen content so it can improve emissions. This study aims to analyze the use of a mixture of Pertamax and methanol fuel on exhaust emissions using a 150 cc EFI gasoline engine. The percentage of methanol used in the test is 5%, 10%, and 15%. Variation of engine speed from 1000 to 3000 rpm with an interval of 1000 rpm. Measurement of exhaust emissions using a gas analyzer. The addition of methanol to Pertamax fuel reduced HC emission levels at PM15 by 34% at 3000 rpm and CO by 43% at 3000 rpm at PM15, while CO2 and O2 emission levels increased by 23% at 3000 rpm at CO2, mixing PM15 and at O2 emissions of 163% at a speed of 3000 rpm on PM5.

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An experimental and modeling study on auto-ignition kinetics of ammonia/methanol mixtures at intermediate temperature and high pressure

Hashemi

et al. 2022

Combustion and Flame

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Investigation on the explosion limits and flame propagation characteristics of premixed methanol-gasoline blends

Cited by 19 publications

References 19 publications

Investigating the Influence of Flue Gas Induced by Coal Spontaneous Combustion on Methane Explosion Risk

Investigating the Influence of Flue Gas Induced by Coal Spontaneous Combustion on Methane Explosion Risk

Pengaruh Penambahan methanol Terhadap Emisi Bahan Bakar Mesin Sepeda Motor Berbahan Bakar Pertamax 150 CC

An experimental and modeling study on auto-ignition kinetics of ammonia/methanol mixtures at intermediate temperature and high pressure

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