95results about How to "Efficient way" patented technology

The invention discloses a method of producing bio-diesel by fermenting the heterotrophic chlorella in high density which belongs to the renewable biological energy field. The method uses the heterotrophic chlorella fermented in high density in the bio-reactor as a raw material, which screens the chlorella species having high growth rate and high oil content, directly inoculates into the bottle as the first-class germ to culture then transfers to the fermentation cylinder to undergo the second-glass high density fermentation; the reaction condition is then optimized, and the process is controlled; the culture containing the carbohydrate is dripped to provide the nutrition for the cell growth, therefore the heterotrophic chlorella cells cultured in high density with density of 108g / L and oil content of 61 percent are separated, collected and dried; the algae oil is extracted, and the bio-diesel is produced by transesterification reaction; the invention reduces the cost for the raw material of bio-diesel, and satisfies the demand of industrialized application of producing bio-diesel by heterotrophic chlorella cells, therefore the technique of the invention becomes an economical and effective way of making oils from bio-diesel materials.

The invention discloses a multi-scale simulation method for mechanical behaviors of a multi-phase composite material, and belongs to the field of multidisciplinary intersection of computational material science, analog simulation, high-throughput calculation and the like. Various physical property parameters needed by finite element simulation of the macroscopic scale can be obtained through calculation of the first principle of the nanoscopic scale, molecular dynamics simulation of the microcosmic scale and thermodynamic calculation of the mesoscopic scale, and the physical property parameters comprise elastic-plastic physical parameters of all phases in the composite material at different temperatures and different grain sizes and the like. A real material tissue structure is obtained byutilizing a focused ion beam experiment and image processing introduction. Through parameter coupling and parameter transmission among scale calculation results and combination with the structure ofthe material, mechanical behaviors such as stress-strain relationship, stress distribution and evolution and plastic deformation of the multi-phase composite material under complex stress and different temperatures can be simulated.

The invention discloses a CFD-based heavy metal wastewater sulfuration precipitation reactor optimization method. The method comprises the following steps: establishing a fluid computational domain geometric model of a sulfuration precipitation reactor; according to the established geometric model, determining a control equation and defining a boundary condition and an initial value of the model according to an actual situation and a design thought; meshing the geometric model of the sulfuration precipitation reactor, and solving flow field and reaction substance concentration distribution and the like of the model by using multi-physical field coupling; by modifying related parameters, repeating the process, performing multiple numerical simulation calculations, and comparing and analyzing calculation results under different geometric structures and technological parameters to obtain the optimal reactor structure and technological parameters. According to the invention, simulation calculation can be carried out on the sulfuration precipitation process under different reactor structures and process parameters to obtain results such as inlet and outlet water concentrations of the reactor, flow field distribution characteristics in the reactor, concentration distribution of each substance and the like so as to evaluate the reactor performance under different conditions.