2019
Non-Invasive Method for Flow Measurement Using Piping Elements with Integrated Piezoelectric Sensors
Concentration area:
Nature of the Project: Research
Start date:
Research line:
Project Status: In progress
Description:
This project’s main objective is to develop non-invasive and low-cost methods for measuring liquid flow using elements of the piping itself, such as sections of pipes and pipe bends, containing embedded piezoelectric sensors. This is an innovative method, the originality of which consists in installing (embedding) piezoelectric sensors in the tube wall, close to its internal surface, which allows the detection of small pressure fluctuations caused by the turbulent flow of liquid flows. These pressure fluctuations are directly related to the flow speed, and consequently to the flow rate. Preliminary tests have shown that, due to the high sensitivity of piezoelectric sensors, it is possible to observe a strong correlation between the electrical response of the sensor and the flow rate.
Team:
Students involved: Academic master’s degree: (1) Doctorate: (1) .
Members: Antonio Lopes Gama – Coordinator / Roger Matsumoto Moreira – Member / LANNES, D.P. – Member.
Funders: National Council for Scientific and Technological Development – Financial assistance.
Optimal and Inverse Design of Tumor Treatment Protocols Through Hyperthermia and/or Hypothermia
Concentration area:
Nature of the Project: Research
Start date:
Research line:
Project Status: In progress
Description:
This proposal contemplates a strategy for developing protocols for the treatment of tumors using magnetic resonance-guided hyperthermia. The problem of quantifying the local temperature increase is solved recursively, in the form of a state variable estimation problem under a Bayesian approach, through the Steady-State Kalman Filter method. This approach allows the typical experimental procedure of magnetic resonance thermometry to be combined with a mathematical model of heat biotransfer, in order to make it possible to correct distortions arising from non-systematic errors. The method is broadly compatible with any desired heating model and has proven superior performance to the traditional method of direct inversion of experimental data.
Team:
Members: César Cunha Pacheco – Coordinator.
Funders: Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do RJ – Financial assistance.
PRH – Multidisciplinary Program in Oil, Gas and Energy
Concentration area:
Nature of the Project: Research
Start date:
Research line:
Project Status: In progress
Description:
ANP Human Resources Program (PRH-ANP)..vvvvv
Team:
Students involved: Undergraduate: (8) / Specialization: (0) / Academic master’s degree: (2) / Professional master’s degree: (0) / Doctorate: (1) .
Members: Fabio Toshio Kanizawa – Coordinator / Leandro Alcoforado Sphaier – Member / Luiz Carlos da Silva Nunes – Member / Fabiana Rodrigues Leta – Member / Hugo Alvarenga Oliveira – Member / Lisiane Veiga Mattos – Member / Victor Rolando Ruiz Ahon – Member.
Financiers: National Petroleum Agency – Stock Exchange.
PETROBRAS-UFF-FEC Agreement. Cooperation agreement 5850.0107860.18.9. Project’s coordenador ? Low-cost composite repairs
Concentration area:
Nature of the Project: Research
Start date:
Research line:
Project Status: In progress
Description:
Team:
Students involved: Undergraduate: (1) / Doctorate: (3) .
Members: Heraldo Silva da Costa Mattos – Coordinator / Joâo Marciano Laredo dos Reis – Member / AMORIM, F.C. – Member / Maria Laura Martins Costa – Member / Juliana Primo Basílio – Member / João Brandão – Member / Camila Ranucci – Member.
Funders:
Infrastructure for Heat Transfer Simulations and Experiments in Flare Structures in the Thermosciences Laboratory
Concentration area:
Nature of the Project: Research
Start date:
Research line:
Project Status: In progress
Description:
This project is aimed at acquiring and installing infrastructure for research focused on thermal and mechanical analysis of thermal shielding systems to be used in polymeric repairs made to metallic structures of flare towers. The infrastructure will be installed in the Thermosciences Laboratory (LATERMO) of the Universidade Federal Fluminense (UFF), and includes a system for measuring temperature using infrared thermography, computers for carrying out simulations and data acquisition, a medium compressor size for a compressed air line, and an experimental bench for experimental evaluation of thermal shields. Bench installation includes the purchase of a heat flow sensor, infrared radiation heaters, a cooling tower, and a data acquisition system.
Team:
Members: Leandro Alcoforado Sphaier – Coordinator.
Financiers: Brazilian Petroleum – Rio de Janeiro – Headquarters – Cooperation.
Theoretical-Numerical and Experimental Analysis of Heat Transfer in Flare Structures
Concentration area:
Nature of the Project: Research
Start date:
Research line:
Project Status: In progress
Description:
This project involves the development of a thermal shielding system for polymeric repairs made to metallic structures of flare towers, typically found in oil and gas production and refining plants. These repairs must operate at temperatures below 200ºC; however, this is not possible if they are exposed to thermal radiation from the tower’s flame. Therefore, it is proposed to evaluate a thermal shielding system in order to mitigate the heating caused by flame radiation. To specify the shielding system, the conjugate conduction-radiation heat transfer in the structure will be mainly considered. However, as the installation of the shielding system changes the airflow around the structure, there may be notable changes in the convective heat exchange with the air, and this phenomenon will also be analyzed. To complete the specification of a thermal shielding system, in addition to its thermal design, the mechanical design will also be carried out, considering the structural analysis of the proposed shielding system. Finally, in addition to the shielding system, situations will be analyzed with and without the proposed system, in order to demonstrate its effectiveness.
Team:
Students involved: Bachelor’s degree: (2) / Academic master’s degree: (1) / Doctorate: (2) .
Members: Leandro Alcoforado Sphaier – Coordinator / Luiz Carlos da Silva Nunes – Member / Isabela Florindo Pinheiro – Member / Jaqueline Diniz da Silva – Member / Fabio Toshio Kanizawa – Member / Cesar Cunha Pacheco – Member.vvv
Financiers: Brazilian Petroleum – Rio de Janeiro – Headquarters – Cooperation.