Buscar
Mostrando ítems 1-10 de 15374
Análise da interação compressor-tubo capilar na adaptação de um sistema de refrigeração de R134a para R290 ou R600
(Universidade Federal de São CarlosUFSCarCâmpus São CarlosEngenharia Mecânica - EMec, 2021-04-01)
In a context with environmental concern getting more and more importance, products that are aggressive to the environment are receiving less and less demand. For instance, the refrigeration industry is being directed to ...
Modelo dinâmico para um evaporador operando com R-1234yf e R134a
(Universidade Federal de Minas GeraisUFMG, 2018-02-02)
Currently, hydrofluoroleophins (HFOs) have been used more in refrigeration processes because they have low ozone depletion potential (ODP) and low global warming potential (GWP). With the emergence of restrictions such as ...
Synthesis of (5R)-4-Methyl-5-phenyl-1,3,4-oxadiazinan-2-one and some N-acyl derivatives from (R)-phenylglycine
(Georg Thieme Verlag KgStuttgartAlemanha, 2005)
A model to predict R134a refrigerant leakage through the radial clearance of rolling piston compressors
(Elsevier B.V., 2012-12-01)
In this paper a non-isothermal two-phase model for oil-R134a refrigerant mixture flow is presented to predict the R134a leakage through the radial clearance of rolling piston compressors. The flow is divided in a liquid ...
A model to predict R134a refrigerant leakage through the radial clearance of rolling piston compressors
(Elsevier B.V., 2012-12-01)
In this paper a non-isothermal two-phase model for oil-R134a refrigerant mixture flow is presented to predict the R134a leakage through the radial clearance of rolling piston compressors. The flow is divided in a liquid ...
Performance comparativa entre R437A e R134A paradrop-in em um condicionador de ar automotivo
(Universidade Federal do Rio Grande do NorteBrasilUFRNPROGRAMA DE PÓS-GRADUAÇÃO EM ENGENHARIA MECÂNICA, 2015-06-19)
The reduction in energy consumption is the main requirement to be satisfied in
refrigeration and air conditioning by mechanical vapor compression system. In
automotive system isn´t different. Thermal analyses in these ...