Comparative assessment of the application of methane and biogas in energy production: An experimental and numerical investigation

Kruczek, Grzegorz; Przybyła, Grzegorz; Ziółkowski, Łukasz; Adamczyk, Wojciech

doi:10.1016/j.renene.2019.05.087

Cited by 14 publications

(3 citation statements)

References 25 publications

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“…The anaerobic digestion (AD) technology provides renewable energy (in the form of biogas; 75-80 vol. % methane) displacing the use of traditional fuels and contributing to a reduction in global warming [14]. Biogas production from animal wastes (mainly fresh manure) is a widely studied subject.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of batch mesophilic anaerobic digestion of raw and trampled llama and dromedary dungs: methane potential and kinetic study

Fernández-Rodríguez

Mancilla-Leytón

Lama-Calvente

et al. 2022

Biomass Conv. Bioref.

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This research was carried out with the aim to evaluate the anaerobic digestion (AD) of llama and dromedary dungs (both untreated and trampled) in batch mode at mesophilic temperature (35 °C). The biochemical methane potential (BMP) tests with an inoculum to substrate ratio of 2:1 (as volatile solids (VS)) were carried out. The methane yield from trampled llama dung (333.0 mL CH4 g−1 VSadded) was considerably higher than for raw llama, raw and trampled dromedary dungs (185.9, 228.4, 222.9 mL CH4 g−1 VSadded, respectively). Therefore, trampled llama dung was found to be the best substrate for methane production due to its high content of volatile solids as well as its high nitrogen content (2.1%) and more appropriate C/N ratio (23.6) for AD. The experimental data was found to be in accordance with both first-order kinetic and transference function mathematical models, when evaluating the experimental methane production against time. By applying the first-order kinetic model, the hydrolysis rate constants, kh, were found to be 19% and 11% higher for trampled dungs in comparison with the raw dung of dromedary and llama, respectively. In addition, the maximum methane production rate (Rm) derived from the transference function model for trampled llama dung (22.0 mL CH4 g−1 VS d−1) was 83.3%, 24.4% and 22.9% higher than those obtained for raw llama manure and for raw and trampled dromedary dungs, respectively.

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Section: Introductionmentioning

confidence: 99%

Evaluation of batch mesophilic anaerobic digestion of raw and trampled llama and dromedary dungs: methane potential and kinetic study

Fernández-Rodríguez

Mancilla-Leytón

Lama-Calvente

et al. 2022

Biomass Conv. Bioref.

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“…In this case, the feedstock may be dairy manure, municipal wastewater, organic sludge, food waste, energy crops, and the like. If biogas produced in this way is utilized in combustion devices such as combustion furnaces, gas turbines, and kitchen stoves, it can replace a part of existing fossil fuel energy consumption (Habib, 2021;Kruczek, 2019;Roubík, 2019).…”

Section: Introductionmentioning

confidence: 99%

Development of Cavity Matrix Combustor for Biogas Application

Chun

An²

2022

ASEAN J. Chem. Eng.

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The use of conventional fossil fuels has limitations in energy resources and environmental problems such as greenhouse gas, air pollution, etc. Biogas has sustainable and renewable characteristics that can be used as an alternative energy source to alleviate these problems. In this study, we proposed a novel cavity matrix combustor that directly enables the combustion of what is produced in small and medium-sized biogas facilities without separation or purification. We also identified combustion characteristics for changes in air ratio, gas feed rate, biogas ratio, and exhaust gas recirculation rate and proposed optimal operating conditions based on this. The performance test result showed that the cavity matrix combustor is excellent for biogas combustion. The optimal operating conditions for the combustor are: the biogas ratio is 60% of CH4 and 40% of CO2, the air ratio is 1.1, the gas feed rate is 30L/min, and the exhaust gas recirculation rate is 100%. At this time, the combustion efficiency was 87%, and the unburned components were CO, UHCs, which are 0.01% and 0.05%, respectively, and NOx was 1ppm.

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“…Keičiant biodujų sudėtį, turi būti koreguojami valdymo bloko parametrai, atsižvelgiant į biodujų degimo proceso kitimą ir savybes. To nepadarius, gali padidėti degalų sąnaudos, išmetamų teršalų kiekis, vidutinio indikatorinio slėgio variacija (Kruczek et al, 2019) ir sumažėti šiluminis efektyvumas (Makareviciene et al, 2013). CO2 galėtų būti pašalintas iš biodujų, tačiau taikomi metodai pasižymi iki 10 % metano nuostoliais ir mažu energijos vartojimo efektyvumu (Subramanian et al, 2013).…”

Section: Biodujomis Veikiančių Kibirkštinio Uždegimo Variklių Tyrimų ...unclassified

Biodujomis veikiančio kibirkštinio uždegimo variklio ekologinių ir energinių rodiklių gerinimas

Kriaučiūnas¹

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Vadovas doc. dr. Saugirdas PUKALSKAS (Vilniaus Gedimino technikos universitetas, transporto inžinerija -T 003). Vilniaus Gedimino technikos universiteto Transporto inžinerijos mokslo krypties disertacijos gynimo taryba: Pirmininkas prof. dr. Gintautas BUREIKA (Vilniaus Gedimino technikos universitetas, transporto inžinerija -T 003). Nariai: prof. dr. Stasys SLAVINSKAS (Vytauto Didžiojo universitetas, transporto inžinerija -T 003), dr. Nerijus STRIŪGAS (Lietuvos energetikos institutas, energetika ir termoinžinerija -T 006), prof. habil. dr. Stanislaw SZWAJA (Čenstakavos technologijos universitetas, Lenkija, energetika ir termoinžinerija -T 006), doc. dr. Gediminas VAIČIŪNAS (Vilniaus Gedimino technikos universitetas, transporto inžinerija -T 003). Disertacija bus ginama viešame Transporto inžinerijos mokslo krypties disertacijos gynimo tarybos posėdyje 2022 m. rugpjūčio 31 d. 10 val. Vilniaus Gedimino technikos universiteto senato posėdžių salėje.

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Comparative assessment of the application of methane and biogas in energy production: An experimental and numerical investigation

Cited by 14 publications

References 25 publications

Evaluation of batch mesophilic anaerobic digestion of raw and trampled llama and dromedary dungs: methane potential and kinetic study

Evaluation of batch mesophilic anaerobic digestion of raw and trampled llama and dromedary dungs: methane potential and kinetic study

Development of Cavity Matrix Combustor for Biogas Application

Biodujomis veikiančio kibirkštinio uždegimo variklio ekologinių ir energinių rodiklių gerinimas

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