Banca de DEFESA: ADRIANO GOMES DE FREITAS

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
STUDENT : ADRIANO GOMES DE FREITAS
DATE: 06/07/2023
TIME: 14:00
LOCAL: Remoto
TITLE:

Energy Efficiency of an Innovative Solids Feeder for Dense Phase Pneumatic Conveying Systems

PAGES: 189
BIG AREA: Engenharias
AREA: Engenharia Mecânica
SUBÁREA: Fenômenos de Transporte
SUMMARY:

Pneumatic transport can be defined as a process capable of displacing solid materials such as powder or granules, whose energy source is the gas flow. The displacement of the particulate occurs by pressure differential along a pipe, so that the gas transports the particles from the region of higher pressure to the region of lower pressure. This work deals with the development, modeling and optimization of equipment used in pneumatic conveying systems for industrial use. It is a feeder with reduced dimensions for the supply of solids with industrial capacity, designed to use compressed air as the driving force. The main objective of this work is to analyze and optimize the energy efficiency of this technology for handling solid materials by pneumatic conveying systems. The pneumatic transport of the particulate material researched here will take place in a dense phase with applicability for use in different industrial segments, such as food, ore and ash, for the transport of powders, seeds, pellets and granules, considering that more 70% of all industrial products are particulate at some stage. The methodology of this work starts from the investigation of the state of the art of pneumatic transport through gas fluid. The experimental stage of the research project took place at the Laboratory of Research, Development and Industrial Innovation of the company Zeppelin Systems Latin America Equipamentos Industriais LTDA, which is affiliated with UFABC, and is responsible for the development of the equipment in its RD&I center, where it project is called Batchpump. The experiments started with characterization and experimental planning under different operating conditions. Methods were applied for the validation of the transport tests through the treatment of data from flow, pressure, time and mass sensors, in order to investigate the behavior of the flows of the pressurized feeder, in order to evaluate the equipment and its viability. Next, the parameterization of the operation of the pneumatic system on a continuous industrial scale was defined and later the optimization of energy efficiency. The results validated the equipment as a practical and advantageous alternative in terms of space required to the classic pressure vessel in industrial projects of transport systems for particulate solid materials in batches. The method was tested and applied to an industrial pneumatic conveying system, consisting of a compact pressure vessel with a volume of 100 L, which introduces material into a 133 m long pipe with a diameter of 3 inches. The possibility of controlling the system with a minimum of two input parameters is demonstrated: by limiting the transport air pressure and flow, the respective consumed power and transport rate are determined. The ratio between the last two parameters determines the energy efficiency of the process. Compared to the pressure vessel used in conventional pneumatic conveying, the Batchpump brings significant practical advantages such as reduced operation complexity, smaller equipment size and lower acquisition cost.

COMMITTEE MEMBERS:
Presidente - Interno ao Programa - 1544284 - LUIS ALBERTO MARTINEZ RIASCOS
Membro Titular - Examinador(a) Interno ao Programa - 1544340 - PATRICIA TEIXEIRA LEITE ASANO
Membro Titular - Examinador(a) Externo à Instituição - ERICK DE MORAES FRANKLIN - UNICAMP
Membro Titular - Examinador(a) Externo à Instituição - LUCAS MASSARO SOUSA
Membro Titular - Examinador(a) Externo à Instituição - MARIA DO CARMO FERREIRA - UFSCAR
Membro Suplente - Examinador(a) Externo ao Programa - 1914234 - ALEXANDRE ACACIO DE ANDRADE
Membro Suplente - Examinador(a) Externo ao Programa - 1552434 - LUCIANO AVALLONE BUENO
Membro Suplente - Examinador(a) Externo à Instituição - PRISCILLA GRASSI FREIRE