Supplying the energy demand in the chicken meat processing poultry with biogas

Adriano Henrique Ferrarez,Delly Oliveira Filho,Fabrício Segui Aparisi,José Márcio Costa,Adílio Flauzino Lacerda Filho

doi:10.15446/ing.investig.v36n1.52576

Abstract

<p>The main use of electrical energy in the chicken meat processing unit is refrigeration. About 70% of the electricity is consumed in the compressors for the refrigeration system. Through this study, the energetic viability of using biogas from poultry litter in supplying the demand for the refrigeration process was found. The meat processing unit studied has the potential to process about a hundred and sixty thousand chickens a day. The potential biogas production from poultry litter is 60,754,298.91 m3.year-1. There will be a surplus of approximately 8,103MWh per month of electric energy generated from biogas. An economic analysis was performed considering a planning horizon of 20 years and the discount rate of 12% per year. The economic analysis was performed considering scenario 1: sale of all electricity generated by the thermoelectric facility, and scenario 2: sale of the surplus electricity generated after complying with the demands of the refrigeration process and all other electrical energy and thermal energy use. Economic indicators obtained for scenarios 1 and 2 were favorable for the project implementation.</p>

Highlights

Current trends indicate growing electricity costs in Brazil, above the inflation rate
The hydropower energy corresponds to about 13 % of the country’s primary energy matrix, and around 87 % of the electrical energy consumed in Brazil (EPE, 2014)
Electric power generated by gas turbine

Summary

Introduction

Current trends indicate growing electricity costs in Brazil, above the inflation rate. The majority of the hydroelectric potential of South, Southeast and Midwest regions were already being explored. In the North region, that concentrated the remaining hydro potential, a major environmental impact of large hydroelectric projects exists. The decentralization of electricity generation in Brazil has increased along the years. Over 28 % of the Brazilian primary energy matrix is firewood, sugar cane energy products (alcohol and bagasse) and other biomass sources such as agriculture residue. The hydropower energy corresponds to about 13 % of the country’s primary energy matrix, and around 87 % of the electrical energy consumed in Brazil (EPE, 2014).

Objectives

Methods

Results