Abstract
The coal-producing territories in the world are facing the production of renewable energy in their thermal systems. The production of biocoal has emerged as one of the most promising thermo-energetic conversion technologies, intended as an alternative fuel to coal. The aim of this research is to assess how the model of biomass to biocoal conversion in mining areas is applied for thermal systems engineering. The Central Asturian Coal Basin (CACB; Spain) is the study area. The methodology used allows for the analysis of the resource as well as the thermo-energetic conversion and the management of the bioenergy throughout the different phases in a process of analytical hierarchy. This is carried out using a multiphase mathematical algorithm based on the availability of resources, the thermo-energetic conversion, and the energy management in the area of study. Based on the working conditions, this research highlights the potential of forest biomass as a raw material for biocoal production as well as for electrical and thermal purposes. The selected node operates through the bioenergy-match mode, which has yielded outputs of 23 MWe and 172 MWth, respectively.
Highlights
The constant technological progress and the increasing industrialization of society have boosted the demand for energy
The asas anan alternative to coal production in inmining mining basins by using mine shafts as energy conversion nodes that draw on the surrounding basins by using mine shafts as energy conversion nodes that draw on the surrounding forest forest biomass as material
From the mass and energy balance of the analysis model, the optimal node appears to be Pozo Candín” (PC), this is selected as the optimal node for the Central Asturian Coal Basin (CACB)
Summary
The constant technological progress and the increasing industrialization of society have boosted the demand for energy. Fossil fuel deposits, such as those in coal basins, are limited and have been extensively exploited, so modelling the biomass potential of renewable sources in these areas is a challenge for the future in the European Union (EU). The potential of Spain in renewable energies is well above both the domestic energy demand and the existing fossil fuel resources [3]. Despite this situation, Spain is highly dependent on foreign energy from fossil fuels, coal being the main source of indigenous energy in Spain [4]
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