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Estudo experimental e modelo de simulação para a determinação do inventário em sistemas de refrigeração carregados com os fluidos R-134a e HFO-1234yf
(Universidade Federal de Minas GeraisUFMG, 2017-08-03)
The present work is a theoretical/experimental study on the inventory in refrigeration systems loaded with the fluids R-134a and HFO-1234yf. The first is a chlorine-free hydrofluorocarbon (HFC) with ozone depletion potential ...
Determinação da fração de vazio pelo método QCV para escoamentos bifásicos horizontais do refrigerante HFO-1234yf
(Universidade Federal de Minas GeraisBrasilENG - DEPARTAMENTO DE ENGENHARIA MECÂNICAPrograma de Pós-Graduação em Engenharia MecanicaUFMG, 2019-06-14)
This work presents an experimental study on the void fraction in two-phase horizontal flows with R1234yf fluid. The object of the study was the determination of the void fraction for a large range of quality and for some ...
Análise experimental de um sistema de refrigeração cascata comercial com HFC e HFO/R744Experimental analysis of a commercial cascade refrigeration system with HFC and HFO/R744
(Universidade Federal de UberlândiaBrasilPrograma de Pós-graduação em Engenharia Mecânica, 2022)
Tribology review of blended bulk polymers and their coatings for high-load bearing applications
(Elsevier, 2019-01)
The present study reviews tribology research on bulk polymers and coatings, employed in several applications, including air-conditioning, refrigeration, and thrust pad bearings. Known polymers such as polyetheretherketone ...
Advanced polymeric coatings and their applications: green tribology
(2019-01)
In this article, different advanced polymeric coatings and their applications are reviewed. Polymeric coatings have broad properties and functions; herein we discuss the coatings’ deposition methods and three different ...