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10 años Energylab

Use of methane in cattle farms

NameUse of methane in cattle farms
CategoryBioenergy
Start DateAugust 2017
End DateOctober 2019
LeaderAGACA
PartnersEnergyLab, Universidad de Vigo, SANVICOR & Granja San Miguel.
Financing entitiesEuropean Agricultural Fund for Rural Development (EAFRD) – Consellería de Medio Rural (Xunta de Galicia)

Description

The objective of this project is to reduce the environmental impact caused by methane emissions associated with raising livestock and generate a new energy resource. This objective will be reached through the design of a low-cost collection, separation and cleaning system, which allows the use of the gas generated in the two main emission sources: barn and slurry tanks.

EnergyLab's Tasks

EnergyLab performed the following tasks:

  • Task 1: Farm adaptation
  • The biogás generated will be collected into the slunk tank, as well as the far. In both places capture systems will be installed that will allow to accumulate the gas.
  • Task 2: Gas phase characterization
  • Sampling and gas analytical tests will be carried out, both in the stabling area and in the slurry tank, to determine its composition (CH4, CO2, H2O, N2, O2, NH3) and characteristics. Samples will be taken at different points and at different heights.
  • Task 3: Laboratory stratification
  • A study of the biogas stratification process will be carried out in the laboratory, according to the different compositions. The gas will be introduced in a sealed container where periodic samples will be taken at different heights, which will allow to estimate the behavior and stratification times. Based on the results obtained, simulating the first stages of gas capture and storage, the separation processes will be established and, if necessary, an additional cleaning to eliminate the components that reduce the energy potential of the biogas in order to achieve a concentration of methane that allows the proper functioning of a generator or a boiler.
  • Task 4: Simulation
  • Fluid dynamics simulations will be carried out, in order to study in depth, the behavior of the gas at the both locations.
  • Task 5: System design / biogás capture
  • We will collaborate in the design of a data collection and information system that will allow knowledge and control of the gas extraction action system.

 

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