Resultados de testes preliminares do aperfeiçoamento experimental de um tubo de vórtice utilizando diferentes câmaras de injeção

Abstract

The vortex tube is an equipment capable of separating a stream of gas into two streams, one cold stream and one hot stream. This equipment is generally used as a refrigerator, requires no maintenance and has high reliability, but low performance makes it difficult to use. This work aims to improve the efficiency of a vortex tube by selecting a number of inputs to the injection chamber that are more efficient. Tests were carried out with injection chambers with a number of entries between 2 and 6, with inlet pressures ranging from 1 to 4 bar. The best results were achieved with a 3 nozzles injection chamber. The lowest temperature found in the tests was -8.7º C, with a pressure of 4 bar, and the highest coefficient of performance was 14%, also with a pressure of 4 bar.