Biogas: A renewable source of energy

Houdková, Lucie; Borán, J.; Pěček, Jan; Sumpela, Pavel

doi:10.2298/tsci0804027h

Cited by 11 publications

(7 citation statements)

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“…The potential of anaerobic digestion to produce biogas is presented by Houdková [17] -authors present biogas production in laboratory and next comment potential of biogas utilization and in biogas production for vehicles. Matuszewska et al [18] evaluated the biological methane potential of various feedstock for the production of biogas to supply engines in agricultural tractors.…”

Section: Fig 3 Schematic Of Waste Utilization Be Electricity Producmentioning

confidence: 99%

Energy analysis of municipal waste in Dubrovnik

Król

Krajačić

2018

Acta Innovations

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In each touristic city waste management system has to overcome the impact of visitors. Dubrovnik, famous as popular touristic destination, particularly notices tourists visiting city. Therefore potential impact of waste management in touristic cities, such as Dubrovnik, is presented. The paper includes estimation of yearly waste production by inhabitants and tourists visiting those city. Waste digestion is a method for biogas production. On the basis of the preceding estimation combined-cycle installation generating heat and electricity is proposed. The model combines Brayton cycle with low temperature Kalina model based on Rankine cycle. Literature analysis presents state of the art in this field. The simulation is prepared in Cycle-Tempo. Numerical analyses lead to technical issues, which have to be taken into consideration during waste utilization with such installation. Thus benefits and threats are discussed. The presented analysis assesses the maximal electric gain, which subsequently should consider waste preparation and purification

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Section: Fig 3 Schematic Of Waste Utilization Be Electricity Producmentioning

confidence: 99%

Energy analysis of municipal waste in Dubrovnik

Król

Krajačić

2018

Acta Innovations

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“…They established that the top of sugar-beet doping causes higher hydrogen-sulphide content in biogas and that increasing the ratio of additives causes a decrease methane productivity. Houdková et al built a laboratory fermentation unit for the experimental determination of biogas production [9]. Kalyuzhnyi et al [10] studied the integrated mechanical, biological and physical-chemical treatment of liquid pig manure.…”

Section: Biomass-based Energy Production -Biogasmentioning

confidence: 99%

Biogas and Energy Production by Utilization of Different Agricultural Wastes

Meggyes¹,

Nagy²

2012

ACTA POLYTECH HUNG

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Sustainable agricultural development and increasing the rate of renewable energy sources have become an economic issue after Hungary joined the EU. Under the present economic conditions the private sector cannot solve in its complexity the problems of environment protection and energy from its own sources. The paper introduces biogas production and utilization methods that are suitable for providing continuous operation of existing biogas plants and also for determining the parameters of establishing biogas plants. Experimental variants (mixtures of liquid pig manure and plant additives) were developed to produce biogas and intensify biogas yield, and then gas engine tests were done for the energy utilization. The eco-energy system can be built up by taking into consideration the specific local conditions. It does not require any change or transformation of agricultural structure. The system can be expanded by the utilization of other organic materials, so it supports efficient operation. Furthermore, it can be the pillar of energy independence of rural life, because during the establishing of the eco-energy system, ecological aspects are taken into consideration, which makes this system sustainable. Waste disposal requirements can be integrated, too. We created a complex biogas production and utilization system by developing variants, so that both the energy and the waste disposal goals can be achieved together. This system was presented as an alternative agricultural system for an animal farm.

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“…This is motivated by technological developments and of course an increase in the number of human populations, however, the large level of energy consumption is not matched by the amount of supply of energy sources that will eventually run out. Therefore an alternative energy source is needed as a substitute for non-renewable energy sources [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

Numerical analysis of NOX formation in CO2 diluted biogas premixed combustion

Susilo

Wicaksono

2021

Eureka: PE

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A further investigation of premixed biogas combustion towards the NOx formation is presented in this study. The purpose of the simulation is to determine the addition of CO2 in biogas fuel to the combustion behavior of premixed biogas on NOx formation, and to determine the occurrence of NOx in the pre-mixed biogas combustion. In this study, the Counterflow Premixed Flame class is used where this class is based on the One Dim class which is the basis for simulations with a 1-dimensional domain. The Counterflow Premixed Flame class uses an axisymmetric stagnation flow domain which has been written based on the equations. Cantera uses Newton's method to solve them. Completion is carried out in two stages. The first stage is to solve the solution using the equilibrium at each z coordinate point that has been determined. Many estimation starting points are determined from the start of the program. The second stage is the recalculation process at each point and then subdivided to get a smoother solution. The premixed excess CO2 biogas fuel and air combustion analyzed using a 1-dimensional numerical study. The diluted CO2 mass fraction ranged between 0–40 %. The CH4/CO2/air volume flow rate was maintained in ±L/min. The analysis implements the 1-D Counter Flow approach. Two counterflow nozzles were 20mm in diameter and the flame stagnation point at 10 mm. The results show that NOx mass fraction formed only on a fuel-lean mixture of CH4/CO2/air and its values decreased along with CO2 added. The addition of CO2 could reduce the NO species mass fraction down to 18 %, and NO2 reduction down to 7 %. This is mainly caused by a decreasing heat release rate of NO+N↔N2+O, N+O2↔NO+O, N+OH↔NO+H, and N+CO2↔NO+CO reactions. The N+CO2↔NO+CO reaction increased as CO2 was added but its values were not as much as the decline of three other reactions

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Biogas: A renewable source of energy

Cited by 11 publications

References 0 publications

Energy analysis of municipal waste in Dubrovnik

Energy analysis of municipal waste in Dubrovnik

Biogas and Energy Production by Utilization of Different Agricultural Wastes

Numerical analysis of NOX formation in CO2 diluted biogas premixed combustion

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