Dairy Cattle Biogas Usage in Microturbines for Energy Generation and Thermal Exploitation

Hirano, Marcio Yukio; Silva, Celso L. da

doi:10.1590/1809-4430-eng.agric.v38n4p526-535/2018

“…At the same time, very low emission of pollutants and noise level allow their use in virtually every facility. Microturbines can be supplied by different types of fuel, e.g., dairy cattle biogas [122], syngas [123] and biofuels [124].…”

Section: Gas Microturbinesmentioning

confidence: 99%

Modern Small and Microcogeneration Systems—A Review

Wołowicz

¹

,

Kolasiński

²

,

Badyda

³

2021

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Small and micro energy sources are becoming increasingly important in the current environmental conditions. Especially, the production of electricity and heat in so-called cogeneration systems allows for significant primary energy savings thanks to their high generation efficiency (up to 90%). This article provides an overview of the currently used and developed technologies applied in small and micro cogeneration systems i.e., Stirling engines, gas and steam microturbines, various types of volumetric expanders (vane, lobe, screw, piston, Wankel, gerotor) and fuel cells. Their basic features, power ranges and examples of implemented installations based on these technologies are presented in this paper.

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“…on the other hand, as noted in [20], the lowest costs for processing cow manure are provided during anaerobic digestion, and when selling energy from exhaust gases to a farm, one can get from 6.8 to 13.6 m 3 /day of warm water [21]. in [22], it was shown that biogas release from manure is 450 m 3 /t Vs, which is significantly less compared to biogas release during the fermentation of food waste (660 m 3 /t Vs).…”

mentioning

confidence: 99%

“…5 the condition is satisfied for a given accuracy of the result of the problem solving, i.е. |- 21 on the basis of the research conducted the following results were obtained:  the maximum release of biomethane for the pe-the maximum release of biomethane for the periodic loading of the substrate is determined, which is 14.3 l/kg DoM at 1.2% of the flour con-tent in the substrate; 20.9 l/kg DoM at 2.3%; 19.2 l/kg DoM at 5.6%; adding 10.6% of flour to the substrate causes the fermentation to stop;  a new model of biomethane release was developed during the fermentation of cow manure with the addition of flour-based newton polynomial of the second order and a new approach was developed for optimizing fermentation of cow manure with the addition of flour based on the use of the dichotomy method;  an optimal content of flour in the substrate is determined for the gradual loading of the met hane tank, that is 3,7%;  the recommendations on the rational content of flour in the substrate within the limits of 2.3-4.2% were substantiated, within these limits the biomethane release during the fermentation of the mixture of cow manure and flour is increased by 1.5 times.…”

mentioning

confidence: 99%

Increasing the Bio Gas Release During the Cattle Manure Fermentation by Means the Rational Addition of Substandard Flour as a Cosubstrate

Поліщук¹,

Romaniuk²,

Tarasenko³

et al. 2020

Nauka innov.

0

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The processing of livestock waste and agricultural production enables not only improving environmental safety, but also obtaining energy resources. Problem Statement. Cow manure is used to produce biogas, but its yield is relatively low. One way to increase biogas yield is the joint fermentation of cow manure with substandard flour, which cannot be used as human food and as feed for farm animals. However, the flour content in the substrate, at which the biogas yield is maximum and there is no inhibition of the methane fermentation process, is not a solved issue. Purpose. Increase biogas yield by adding substandard flour to a cow manure-based substrate. Materials and Methods. Research of biogas yield during methane fermentation of substrate based on cow manure with the addition of substandard flour was carried out on a biogas plant consisting of a methane tank with a working volume of 30 l and wet gasholder at periodic substrate loading and fermentation temperature 35 °C. The portion of the substrate included 1.7 kg of manure, 2.5 kg of water and 50, 100, 250 or 500 g of flour. The composition of flour in the substrate was 1.2%, 2.3%, 5.6% and 10.6%. The dichotomy method was used to determine the optimal flour content in the substrate, provided the maximum biogas yield. Results. The maximum biomethane release is 14.3 l/kg dry organic matter (DOM), at 1.

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Increasing the Bio Gas Release During the Cattle Manure Fermentation by Means the Rational Addition of Substandard Flour as a Cosubstrate

Поліщук¹,

Romaniuk²,

Tarasenko³

et al. 2020

View full text Add to dashboard Cite

The processing of livestock waste and agricultural production enables not only improving environ mental safety, but also obtaining energy resources.Problem Statement. Cow manure is used to produce biogas, but its yield is relatively low. One way to increase biogas yield is the joint fermentation of cow manure with substandard flour, which cannot be used as human food and as feed for farm animals. However, the flour content in the substrate, at which the biogas yield is maximum and there is no inhibition of the methane fermentation process, is not a solved issue.Purpose. Increase biogas yield by adding substandard flour to a cow manurebased substrate. Materials and Methods. Research of biogas yield during methane fermentation of substrate based on cow manure with the addition of substandard flour was carried out on a biogas plant consisting of a methane tank with a working volume of 30 l and wet gasholder at periodic substrate loading and fermentation temperature 35 °C. The portion of the substrate included 1.7 kg of manure, 2.5 kg of water and 50, 100, 250 or 500 g of flour.The composition of flour in the substrate was 1.2%, 2.3%, 5.6% and 10.6%. The dichotomy method was used to determine the optimal flour content in the substrate, provided the maximum biogas yield.Results. The maximum biomethane release is 14.3 l/kg dry organic matter (DOM), at 1.2% of the flour con tent in the substrate; 20.9 l/kg DOM, at 2.3%; 19.2 l/kg DOM, at 5.6%. At a content of 10.6% flour in the subst rate, the biogas did not burn, fermentation quickly stopped. The optimum flour content in the substrate based on cow manure, in which the biogas yield increases 1.5 times, is 3.7%.Conclusions. Based on the conducted experimental studies, a model of biogas yield with gradual loading of the substrate was built and the optimal flour content in the substrate was determined, at which the maximum biogas yield is provided. K e y w o r d s : biogas, methanetank, substandard flour, cattle manure, biogas plant, and methane fermentation.Currently, one of the most important and urgent problems is processing of animal waste and agricultural production, not only for environmental safety, but also for obtaining energy resources. Based on the use of biogas technologies, cow manure is used, as a rule,

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Dairy Cattle Biogas Usage in Microturbines for Energy Generation and Thermal Exploitation

Cited by 3 publications

References 5 publications

Modern Small and Microcogeneration Systems—A Review

Modern Small and Microcogeneration Systems—A Review

Increasing the Bio Gas Release During the Cattle Manure Fermentation by Means the Rational Addition of Substandard Flour as a Cosubstrate

Increasing the Bio Gas Release During the Cattle Manure Fermentation by Means the Rational Addition of Substandard Flour as a Cosubstrate

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