Análise de viabilidade do uso de energias renováveis na produção de aves

This study was developed in IFMG- Campus Bambuí-MG, located in the Midwest of Minas Gerais state and focuses on the production processes of poultry meat and eggs. The objective was to analyze the implementation feasibility of generating systems of alternative sources of renewable energy in order to make the process of poultry posture and more sustainable harvesting, and seek the best value for money for this deployment. The methodology of work consisted of the following activities: 1) Survey of organic waste volumes generated in the institution and the energy potential of waste; 2) Experimental analysis of potencial of biogas generation resultant by the biodigestion of poultry litter and excreta of laying and the average volume of such waste in each production process. To perform these analysis, experimental biodigesters of batch loads were built following the standard procedures of production and were used bays and experimental cages for collection of organic matter. 3) Conducting a financial feasibility study that used the Pay Back investment analysis techniques discounted IRR ( Internal Rate of Return ) , NPV (N et Present Value ) and BCR ( Benefit-Cost Ratio ) After analyzing the data, alternative energy generation systems were dimensioned, starting by designing a biodigestion system. Through the analysis of biogas conversion potential generated energy, it was identified there was the need to insert a complementary system to eliminate 100% of the use of concessionary's electricity in the production process, as alternatives, the wind power systems and solar were analyzed. The use of wind power system has been discarded due to the low wind speed at the site of the grange installation, 1,03 m/s . The financial analysis considered three scenarios, the first being the replacement of existing fluorescent lamps with LED lamps, with investment value of US$ 461,67, payback of approximately 07 months and savings during cash flows of US$ 10.779,03; Scenario 2, the implementation of a biodigestion system and the exchange of fluorescent lamps with LED type, contemplated in scenario 01, with an investment value of US$ 7.138,49, an investment payback of approximately four years and six Months and savings during the cash flows of US$ 13.249,01. The scenario 3, which consists of complementing scenario 2 with the installation of a solar energy system with a total cost of US$ 38.203,30, a 12-year investment payback and savings during the cash flows of US$ 126.379,89. All scenarios were promising. As a result of the study, it was possible to demonstrate the existence of technical, financial and environmental feasibility to implement all proposed scenarios.