Biogas as a Renewable Energy Source

1 January 2018

Biogas is an important renewable source of energy, a source of improved organic fertilizer and a mechanism for wastage management. It is an alternative clean fuel, which can replace fossil fuels. It is a gaseous mixture of methane, carbon dioxide, hydrogen sulphide and various other gases produced by anaerobic fermentation of organic material. The ratio of methane and carbon dioxide is 60:40. It is relatively clean burning, no colour and no odour. Methane, is an important greenhouse gas. The residue from biogas burning can be dried and used as fertilizer. The main objective of biogas is to upgrade the sustainable production of renewable energy.

Unsatisfactory performance of biogas units occurs mostly due to planning mistakes. The effects of these mistakes may be seen immediately or after several years. Therefore careful planning is important to avoid irreversible stages. As biogas production is expensive, it should not temporary set up. The efficiency of biogas plant can be improved if properly designed. Therefore determining siting criteria is the initial step in biogas plant. The process begins with the estimation of quantitative and qualitative energy requirements of the customer. Then the biogas generating potential is calculated for the given biomass production and compared to the energy demand. Energy demand and the gas generating potential can not be determined in planning phase. Sizing of plant (digester, gasholder, etc) is the next step in the planning process.

The main aim is to develop an android application which shows dimensions of the biogas plant. It can reduce time and effort and avoid errors. The coding is done in Core Java and graphical user interface makes it user friendly. The input is given as size of biogas plant and retention time and output is shown as dimensions of different components such as mixing tank, digester, dome and outlet tank. The computed dimensions are to be compared with the manual calculations.

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