Ejector-equipped vapor-compression systems for refrigeration and cooling, relying solely on
CO 2 (R744) as a natural working fluid, are perceived to be an eco-friendly and highly …

Ejectors used in refrigeration systems as entrainment and compression components or
expanders, alone or in combination with other equipment devices, have gained renewed …

The efficiency of ejector-based systems (the “system-scale”) relies on the behaviour of the
ejector (the “component-scale”), related to the flow phenomena within the component itself …

In this study, a multi-nozzle ejector is proposed for hydrogen recirculation in proton
exchange membrane fuel cell (PEMFC) systems. Numerical simulations are performed on …

The dynamic development of R744 refrigeration cycles has been observed throughout
recent years. State-of-the-art R744 is equipped with ejectors or ejector modules to increase …

Encompassing both practical applications and recent research developments, this book
takes the reader from fundamental physics, through cutting-edge new designs of ejectors for …

The purpose of a supersonic ejector consists in the mixing of two fluids with different
stagnation pressures in order to obtain a fluid at an intermediate stagnation pressure at the …

While the limitation of the entrainment ratio in supersonic ejectors is a well-known
phenomenon, there is still a need to gain insight on the choking phenomena at play in on …

This paper presents a study on the flow topology in the mixing chamber of a supersonic
ejector using Large Eddy Simulation (LES). To this end, a supersonic air ejector of squared …

This review will focus on perfect gas models developed to predict the performances of
counterflow vortex tubes. It includes empirical and thermodynamics models, models of heat …