Simulation And Optimization Of Air Distribution In Drying Room Of Pig Transporter Based On CFD

With the rapid development of the pig breeding industry,breeding companies pay more and more attention to the biological safety of pigs and strictly control all channels and procedures that may cause danger.The transport vehicle entering the pig farm is the most likely carrier to carry pathogens.Therefore,before entering the pig farm,a series of cleaning,disinfection and drying processes must be carried out.Some pathogens are sensitive to heat and can only be made at high temperatures.Inactivation,so the drying process is indispensable,and it has become an important research project for the research of drying transportation vehicles.According to the existing drying room as a model,the temperature field and the speed of the drying area are studied for the designed drying room.use CFD software Fluent to perform numerical simulation on the drying room,optimize the drying room from the flow rate of the air distribution and the uniformity of the temperature field;for the drying room,the energy consumption is very large,and the process parameters are orthogonalized in consideration of economy The test shows that a set of optimal parameters can meet the performance requirements of the drying room and also meet the economic efficiency.The main research contents of this paper are as follows:1.The characteristics of hot air circulation in the drying room are studied,and the influencing factors of different drying and the advantages and disadvantages of different hot air circulation methods are analyzed.2.Establish a three-dimensional model for the existing drying room,perform numerical simulation analysis,obtain the temperature change curve with time and the speed change curve under heating conditions,and verify the accuracy of the drying room numerical simulation through experimental comparison.3.Through experiments and numerical simulation analysis,the existing problems of the drying room are optimized and designed,and the optimized structure is again numerically simulated,and the results of the two simulations are compared.It can be seen from the results of the analysis that the airflow velocity in the drying room has been increased to a maximum of 1m/s,and the heating time of the optimized drying room has been shortened from 400 s to 350s;the temperature field is uniform The performance has also been greatly improved,and the temperature in the entire drying room has basically reached the target temperature of 70°C.4.On the structural model of the optimized drying room,the energy consumption of the drying room and the factors affecting energy consumption were studied and analyzed,and the orthogonal test method was used to obtain the optimal process parameters.Finally,the optimal process parameters were obtained,that is,the experiment 6 program.,When the inlet temperature is 70°C,the inlet velocity is 5m/s,and the initial temperature of the environment is 20°C.5.Finally,summarize the full text and put forward the prospects for further research.