Produção de energia elétrica a partir do biogás da biomassa da cama de frango: um estudo de caso de um projeto para um aviário

Abstract

The diversification of a country's energy matrix is, extremely important, as it prevents it from becoming dependent on few options to supply its population. This means that, if a problem occurs, the country will not be unable to meet its necessary demand. Brazil, due to its privileged geographic location, territory and climate, has several forms of energy generation, mainly renewable and clean energy generation, which is an extremely important factor in environmental terms. One of these ways is the use of biogas, a crucial technology for the production of renewable energy, due to its numerous advantages and the various raw material options available. A valuable raw material in energy production is chicken litter, which consists of waste removed from the floor of farms, which is mainly composed of a mixture of excrement, feathers, feed remains and material used to cover the floor of farms ( such as rice straw and/or sawdust). To exemplify the potential of this tool (biogas) and this biomass (chicken litter), a fictitious aviary was created, called CECA aviary. At its maximum capacity, the poultry farm is capable of generating 432,000 m3 of biogas throughout the year, which is enough to generate 432,000 kWh, enough to supply 292 families in Alagoas throughout the year. In general numbers, Brazil produced 6.11 billion broiler chickens last year, enough to generate 61,100,00 kWh, enough to supply a city of up to 60 thousand inhabitants. The results found allow us to demonstrate how valuable the use of biogas and chicken litter as raw material can be in generating electrical energy.