Measurement, prediction and molecular design of thermophysical properties of fluids at high temperature and high pressure
Abstract:
In the international and domestic situation of energy conservation and emission reduction, new power cycle working fluids emerge in an endless stream, such as endothermic hydrocarbon fuel, supercritical fluid, molten salt, ionic liquid, plasma and so on.
These new types of working substances lack thermophysical property data under high temperature and pressure, and most data manifest low accuracy and poor consistency, so it is urgent to innovate and develop new theories and new methods for the measurement and prediction of thermophysical property.
This report will briefly introduce some of the work carried out by our group in the measurement, prediction and molecular design of thermophysical property at high temperature and pressure, including: measurement and prediction methods of thermal conductivity at high temperature and pressure; measurement and prediction of viscosity at high temperature and pressure; measurement and prediction of fluid diffusion coefficient; critical properties and phase equilibrium measurement and prediction methods for multicomponent systems.