Estimation of hydraulic characteristics of collection and transportation of oil emulsions

The analysis justifies that the hydraulic properties of pipelines collecting and transporting difficult-to-decompose oil emulsions should be taken into account for their calculation and increasing operational efficiency of the pipelines. The structural sustainability of water-oil emulsions in various temperatures and watercut degrees of oils in technological pipelines based on the study of abnormal rheological properties have been analyzed. It was defined that these systems with relaxation behavior as well in the motion through the pipelines may lose the structural stability. It was revealed that the transition to the turbulent mode of oil emulsions with various watercut degrees takes place in the generalized Reynolds number Re * = 1200.

The Stirring and Heating CFD Simulation Strategic Research on Food Waste Biological Treatment Processor

By analysis the physics parameter of food waste, considering about using CFD technology for the stirring and heating simulation strategic research, guides the stirring structure and heating effect design.Focus on the three layers horizontal paddle Stirring processor’s dealing process for the entity modeling, and considering using MRF method, choosing the Low-Re RNG-κ-ε turbulent mode, heating from the surround of the equipment, meanwhile by insert one solar heat pipe into the middle shaft for the simulation strategic research. The research has actual guidance significance on how to improve the processing efficiency.