New Collaborative Angle Method And Numerical Simulation Of Heat Exchange Tube

Energy plays an important role in today’s life and social development, So ener-gy is intended for people is very important, but the dwindling resources of the earth, so the requirements for improving the energy efficiency of imminent. Enhanced heat transfer technology to the needs of modern industry, Shrinking the weight and vol-ume of heat transfer equipment, And still can greatly improve the efficiency of heat transfer equipment, therefore, in industry and science and technology festival has attracted increasing attention. But it has been widely used forced flow heat trans-fer enhancement of heat transfer enhancement technology exists while adding more power problems. In this paper, in order to find a better heat transfer tubes rein-forced type. On the tube, oval tube and a dropping tube-shaped tube three kinds of different air side of the flow tube to simulate. Comparison of Three strengthen the heat transfer tubes of heat transfer performance of the pros and cons, Draw drip-tube flow and heat transfer overall performance is excellent, oval tube, followed by poor tube conclusions. And field synergy principle analysis of the simulation results, simulation results verify the correctness. According to the analysis of heat transfer performance standard defines a new heat transfer and flow Evaluation Cri-teria,Enhanced heat transfer effect N0 dimensionless parameter used to evaluate the heat transfer surface, Field Synergy Principle and drawn similar conclusions.Tsinghua University, proposed scaling and cross oval tube simulation, changing the zoom oval tube cross a particular size parameters, traditional evaluation criteria PEC. Zoom oval tube cross between horizontal comparison, determine the optimal size of the heat exchanger. Field synergy principle as the guiding ideology, influence of longitudinal vortex velocity and temperature gradient of synergy angle, derive new synergy angle expression. Oval Tube Zoom Mechanism cross from the temper-ature, velocity and pressure fields three,summarizes the characteristics of the heat exchanger, cross Oval Tube noted zoom effect good reason.In the text, handy synergy principle of numerical simulation of phenomena occurring in the theoretical analysis, from the theoretical analysis and numerical simulation results are compared both departure, come to a reasonable conclusion.