Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
THERMOECONOMIC ANALYSIS OF CO2 ALLOCATION AND INFLUENCE OF THE APPLICATION OF SOLAR COLLECTORS IN A THERMAL MDF PRODUCTION PLANT IN THE NORTH OF ESPÍRITO SANTO.
Submission Author:
Felipe Malheiros , ES
Co-Authors:
Felipe Malheiros, Carlos Filipe Lacerda Martins, Davi Pereira Garcia, Matheus Alves Lima, Tadeu Santos de Souza Reis
Presenter: Matheus Alves Lima
doi://10.26678/ABCM.COBEM2023.COB2023-2172
Abstract
The use of energy resources from renewable sources has become a growing trend in contemporary times. It can be justified due to the expected depletion of energy matrices originating from fossil fuels and the significant pollution caused by the burning of these fuels to the environment. Therefore, industries in vast sectors have made it a habit to substitute alternative sources for the energy supply of industrial plants, such as solar collectors and biomass. Therefore, the use of biomass in wood board industries is provided through the chips not intended for making MDF during sieving. As for the use of parabolic solar collectors, an area is reserved for the installation of collectors in series and in parallel, promoting water heating, thus generating the steam used in the process. In the same way, the steam originated through the use of biomass or through solar collectors can be used to generate energy through the addition of turbines, becoming a field of cogeneration in the industrial plant. Thus, the present work consists of a thermoeconomic study with the objective of analyzing environmental charges through the allocation of CO2 in g/kWh. Therefore, it is possible to study the addition of backpressure turbines and parabolic solar collectors according to 6 configurations of the thermal plant. Plant 1 corresponds to the real plant, where all the saturated steam is destined to the process of making the MDF boards. Plant 2 and 3 correspond to the addition of backpressure turbines, varying the operating parameters, considering the actual and maximum capacity of the boiler. Plants 4 to 6 are aimed at adding parabolic solar collectors, in which Plant 4 uses the operating parameters through maximum capacity, and Plants 5 and 6 are based on optimization by genetic algorithms to minimize the emission of CO2 in g/kWh and thermal efficiency maximization, respectively. Finally, an emission equivalent to 4158 g/kWh was obtained for Plant 1, 2230 g/kWh for Plant 2, 1722 g/kWh for Plant 3, 1548 g/kWh for Plant 4, 1505 g/kWh for Plant 5 and 1541 g/kWh for Plant 6.
Keywords
Biomass, Parabolic Through Collectors, CO2
