Power generation as a useful option for flare gas recovery: Enviro-economic evaluation of different scenarios

Nezhadfard, Mahya; Khalili-Garakani, Amirhossein

doi:10.1016/j.energy.2020.117940

Cited by 45 publications

(12 citation statements)

References 15 publications

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“…Elvidge et al 3 compared 2015 satellite-derived natural gas flaring data with the national GHG reduction targets, showing that several countries with large volumes of flare gases would be able to meet only partially their nationally determined contributions targets thanks to the reductions. Similarly, Nezhadfard and Khalili-Garakan 37 indicated that power generation from flare gas could potentially be an effective method for flare gas recovery.…”

Section: Literature Reviewmentioning

confidence: 99%

The effects of gas flaring as moderated by government quality in leading natural gas flaring economies

Alola,

Onifade,

Magazzino

et al. 2023

Sci Rep

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This study seeks to address pertinent economic and environmental issues associated with natural gas flaring, especially for the world's leading natural gas flaring economies (i.e. Russia, Iraq, Iran, the United States, Algeria, Venezuela, and Nigeria). By applying relevant empirical panel and country-specific approaches, the study found that fuel energy export positively impacts economic growth with elasticity of ~ 0.22 to ~ 0.24 for the panel examination. It is further revealed that environmental quality in the panel is hampered by increase in economic growth, gas flaring, fuel energy export, and urbanization. Moreover, for the country-wise inference, government quality desirably moderates economic and environmental aspects of gas flaring in Venezuela and Nigeria, and in Russia and Iran respectively. However, government quality moderates gas flaring to cause economic downturn in the USA. Additionally, economic growth increased with increase in urbanisation (in Iraq and the USA), gas flaring (in Iran and the USA), government quality (only in the USA), and fuel energy export (only in Algeria) while economic growth downturn is due to increase urbanisation in Russia and the USA, increase in fuel energy export in the USA, and increase in government quality in Russia. Meanwhile, environmental quality is worsened through intense carbon dioxide emission from increased urbanisation activity (in Iraq, Iran, Algeria, and Nigeria), increased fuel energy export (in Nigeria), increased natural gas flaring (in Algeria and Nigeria), increased GDP (in Russia, Iran, USA, Algeria, and Venezuela), and high government quality (in Iran). Interestingly, the result revealed that increase in GDP (in Nigeria), increase in urbanisation (in the USA), and increase in gas flaring (in Algeria and Nigeria) dampens environmental quality. Importantly, this study offers policy insight into sustainable approaches in natural gas production, government effectiveness, and regulatory quality.

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Section: Literature Reviewmentioning

confidence: 99%

The effects of gas flaring as moderated by government quality in leading natural gas flaring economies

Alola,

Onifade,

Magazzino

et al. 2023

Sci Rep

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“…The richest mixture is around the spark plug [41]. [42] performed an in-depth study about power generation technologies. The analysis is under different scenarios with gas turbines, IC and other engines.…”

Section: Fundamentals Of Pre-chamber Combustion Structurementioning

confidence: 99%

Pre-Chamber spark ignition: a reliability analysis of pre-chamber valve functions

Akbar,

Zaki

2023

Pamukkale J Eng Sci

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A pre-chamber ignition allows spark-ignition engines to operate in lean air-fuel settings. It improves fuel efficiency and reduces emissions. In this study, a reliability analysis of a single GE Jenbacher J620 natural gas engine was done. It was operational on continuous load in the power generation sector in Karachi, Pakistan. The bathtub curve of GE J620 pre-chamber gas valve (PCV) was generated. The three-year industrial data comprised PCV failures that occurred between two overhauls. During infant mortality, the curve revealed 7 failures during 1000 hours. This decreased to a failure for the next two cycles of thousand hours each. The mean-time-to-failure (MTTF) of the gas valve at 2500 hours and 4500 hours was calculated. There was a 50% decrease in reliability after 1500 hours. Exponential distribution revealed that the mean time-to-failure (MTTF) was 545.5 hours. This study was the first of its kind in the facility. Previously, much time was lost in breakdown maintenance. Thus, it helped to increase the system's reliability.Ön oda ateşlemesi, kıvılcım ateşlemeli motorların zayıf hava yakıtı ayarlarında çalışmasına izin verir. Yakıt verimliliğini artırır ve emisyonları azaltır. Bu çalışmada tek bir GE Jenbacher J620 doğal gaz motorunun güvenilirlik analizi yapılmıştır. Pakistan, Karaçi'de elektrik üretim sektöründe sürekli yükte çalışıyordu. GE J620 ön oda gaz vanasının (PCV) bir küvet eğrisi oluşturuldu. Üç yıllık endüstriyel veriler, iki revizyon arasında meydana gelen PCV arızalarını içeriyordu. Bebek ölümleri sırasında, eğri 1000 saat boyunca 7 başarısızlık ortaya çıkardı. Bu, her biri bin saatlik sonraki iki döngü için başarısızlığa düştü. Gaz vanasının 2500 saat ve 4500 saatte ortalama arıza süresi (MTTF) hesaplandı. 1500 saat sonra güvenilirlikte %50 azalma oldu. Üstel dağılım, ortalama başarısızlık süresinin (MTTF) 545,5 saat olduğunu ortaya koydu. Bu çalışma, tesiste türünün ilk örneğiydi. Daha önce, arıza bakımında çok zaman kaybedildi. Böylece sistemin güvenilirliğinin artmasına yardımcı oldu.

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“…An in depth revision of research about the power generation technologies by employing flare gas (Nezhadfard and Khalili-Garakani [13], show analysis under different scenarios with gas turbines, Internal Combustion Engines (ICE) and Solid Oxide Fuel/ Cell/Gas turbine Cycles, between others. Its main results showed that ICE has the best economic performance over gas turbines like higher single efficiency, more efficient part-load operation, speedy start-up performance and it requires lower pressure compared to a gas turbine.…”

Section: Using Apg For Electricity and Heat Generation (Chp-combinedmentioning

confidence: 99%

“…From the emissions point of view, previous researches showed that power generation from flare gas leads to a significant reduction in SO x and CO emissions but not CO 2 . Once again, due to Gas Turbine Cycle having higher emissions the interest in ICE was highlighted [13].…”

Section: Using Apg For Electricity and Heat Generation (Chp-combinedmentioning

confidence: 99%

Research on an internal combustion engine with an injected pre-chamber to operate with low methane number fuels for future gas flaring reduction

Zardoya¹,

Lucena

Bengoetxea

et al. 2022

Energy

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Power generation as a useful option for flare gas recovery: Enviro-economic evaluation of different scenarios

Cited by 45 publications

References 15 publications

The effects of gas flaring as moderated by government quality in leading natural gas flaring economies

The effects of gas flaring as moderated by government quality in leading natural gas flaring economies

Pre-Chamber spark ignition: a reliability analysis of pre-chamber valve functions

Research on an internal combustion engine with an injected pre-chamber to operate with low methane number fuels for future gas flaring reduction

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