Análise de viabilidade econômica na implantação de termoelétrica a base de casca de arroz em Cachoeira do Sul - RS

Abstract

The industrial process and production of rice requires a correct management of the residues generated by them, for the best use of them, proper disposal and reduction of environmental impacts. In the rice industry, the main residue is the husk of the rice, which usually has undue destination generated by its non-utilization, causing costs to the rice producers. In this context, when perceiving the potential of rice production in the city of Cachoeira do Sul - RS, the present project proposes the economic viability analysis in the implantation of a thermoelectric power plant with the generation of energy from the rice husk biomass in the municipality of Cachoeira do Sul. For the present work, a survey of rice production in the main mills of the city was prepared and the amount of rice husk that could be used as fuel in the biomass-based thermoelectric plant was defined. Following the assessment of the availability of raw material for the project, the costs necessary for the implementation of the thermoelectric plant and the revenues from the sale of the produced energy were evaluated, making it possible to obtain economic viability analysis of the project. The values ââfound in the calculations of the economic viability indexes TMA, NPV, IRR and Payback demonstrated that the use of rice husk for power generation in a thermoelectric plant proved viable for the municipality of Cachoeira do Sul-RS.