Jaya Vignesh Madana Gopal

University of Brighton · School of Computing, Engineering and Mathematics

Recently there has been increased interest in the use of cryogenic fluids in existing and new technologies. Some of these cryogenic fluid dependent technologies include enhancement of superconductivity by cooling the materials to required temperatures using cryogenic fluids, cryosurgery based on cryogenic fluid jets used to tackle skin cancers, Magnetic Resonance Imaging (MRI) and cryopreservation. In addition, cryogenic fluids such as liquid air, liquid nitrogen or liquified natural gas can serve as cost-effective energy vectors within power production units as well as transport “fuels” with zero emissions. For example, energy coming from renewable resources can be used in order to “cool” air or nitrogen, down to the point that they become liquids. Follow up injection of these liquids to a higher temperature environment causes rapid re-gasification and large expansion in volume. This can either drive a turbine or piston engine even without combustion or be used in novel ultra-low emission combustion systems in order to optimise the compression stroke and reduce emissions as in the case of the Cryopower split-cycle which has been developed in the University of Brighton and Dolphin N2 We are currently running multiple projects within the University of Brighton in order to understand the behavior of such fluids when they are injected in various environments or as they interact with surfaces.

To understand and numerically model the thermophysical properties and the injected flow evolution of cryogenic fluids during their transition from subcritical to supercritical state.