39 results about "Phase diffusion" patented technology

The invention provides a nano-refrigerant hydrate phase change cool-storage refrigerant and a preparation method thereof; surfactant is dissolved in water to prepare the water solution of the surfactant; subsequently, the refrigerant is dripped into the water solution of the surfactant and mixed till that the solution is changed from turbidity to brightness. According to the solubility of the surfactant in water and in the refrigerant, the surfactant can be dissolved in the water and can also be dissolved in the refrigerant. Under static state, the water phase and the refrigerant phase are uniformly mixed in microscopic scale to augment the two-phase diffusion interface, thus promoting the growth of the hydrate crystal. The system can lead the water phase and the refrigerant phase to be mixed uniformly without applying mixing, disturbing and external field; the refrigerant phase is dispersed in water in the form of micelle or (and) microemulsion; and alternatively, the water phase is dispersed in the refrigerant phase in the form of micelle or (and) microemulsion; the dripping size of the dispersing phase is 100nm or less. The hydrate phase change cool-storage refrigerant does notdelaminate after being placed for a long time, is single-dispersion system with stable thermal-mechanics performance and has the appearance of transparent or semi-transparent solution.

The invention discloses a steady-state solid-liquid two-phase solute concentration distribution model in a continuous reverse flow mass transfer process. The volume flow of a solid phase in a model independent variable is changed; Volume flow rate of liquid phase, the retention time of the solid phase in the continuous reverse flow mass transfer space is reserved, the coefficient of an equation set and the intermediate parameter of a matrix equation are obtained again, and a solute concentration distribution matrix meeting the expected requirement, the volume flow of the solid phase corresponding to the distribution matrix, the volume flow of the liquid phase and the retention time of the solid phase in the continuous reverse flow mass transfer space are obtained; The model utilizes a CFDmodel to obtain a flow field matrix. performing finite element redivision on the continuous countercurrent reaction process on the basis; meanwhile, solid-liquid two-phase diffusion mass transfer andconvection mass transfer are considered, a solid-phase, liquid-phase and boundary solute conservation equation set is established, compared with a mass transfer process directly defined in a CFD original program, calculation resources are greatly saved, the calculation efficiency of concentration field distribution is improved, and the method is more convenient to write into hardware to carry outlow-cost operation.