The vortex tube is a structurally simple device with no moving parts that is capable of separating a highpressure flow into two lower pressure flows with different energies, usually manifested as a difference in temperatures. The vortex tube is relatively inefficient as a stand-alone cooling device but it may become an important component of a refrigeration system when employed as an alternativ...

The temperature separation effects of vortex tubes have been widely studied in open systems, using mainly air or N2as the working fluid. When a tube is employed closed thermal system, more fluid choices, such as refrigerants, could be considered. Different to air, refrigerants quite varied thermal-physical properties, and research properties? influence on effect rather limited. Based CFD simula...

In this paper, we study the Joule-Thomson expansion for RN-AdS black holes immersed in perfect fluid dark matter. Firstly, negative cosmological constant could be interpreted as thermodynamic pressure and its conjugate quantity with volume gave us more physical insights into hole. We derive definitions critical behaviour of Secondly, explicit expression coefficient is obtained from basic formul...

In this paper, the Joule-Thomson expansion of higher dimensional nonlinearly AdS black hole with power Maxwell invariant source is investigated. The results show coefficient has a zero point and divergent point, which are coincide inversion temperature $T_i$ Hawking temperature, respectively. increases monotonously pressure. For high-pressure region, decreases dimensionality $D$ nonlinearity pa...

The thermodynamics and phase transitions of magnetic Anti-de Sitter black holes were studied. We considered extended-phase-space thermodynamics, with the cosmological constant being a thermodynamic pressure hole mass treated as chemical enthalpy. mimic behavior Van der Waals liquid. Quantities conjugated to coupling nonlinear electrodynamics (NED) charge are obtained. Thermodynamic critical poi...