Thermo-hydraulic performance of nanofluids composed of functionalized multiple-walled carbon nanotubes (MWCNT-OH/water)

• Autor(a) principal: Oliveira, Alexandre Melo de
• Data de Publicação: 2021
• Outros Autores: Gonçalves, Lindomar Matias, Mesquita, Amir Zacarias, Bandarra Filho, Ênio Pedone, Ferreira, André Guimarães
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Research, Society and Development
• Texto Completo: https://rsdjournal.org/index.php/rsd/article/view/13031
• topic: Nanotechnology; Nanotubes; Thermo-hydraulic performance; Nanoparticles.; Nanotecnología; Nanotubos; Rendimiento termo hidráulico; Nano partículas.; Nanotecnologia; Nanotubos; Desempenho Termo-hidráulico; Nanopartículas.

In order to evaluate the potential of a new fluid capable of improving the efficiency of thermal exchange processes in refrigeration systems, the present work proposed the study of the thermo-hydraulic performance of nanofluids constituted by nanoparticles of carbon nanotubes of the type MWCNT dispersed in distilled water. Nanoparticles with -OH functionalization degree, 3%, 6% and 9% were used to produce nine samples of nanofluids. The “two-step” method, with the help of sonication and high-pressure homogenization, was used to disperse the nanoparticles in the base fluid. To evaluate the thermo-hydraulic performance, the following steps were performed: production of the nanofluids by the two-step method. The use of the experimental bench allowed to obtain the necessary parameters for the determination of the heat transfer coefficient by convection and thermohydraulic performance.