Numerical Simulation Of Airflow Distribution In Cruise Kitchen

In the design of the cruise ship,the comparison of different cabins can be found that the environment of the kitchen is relatively harsh.On the one hand,the kitchen heat source is larger.On the other hand,in the cooking of dishes,will release a large number of harmful to the human body soot pollutants,so it is necessary to use a reasonable air exhaust system to ensure the health and comfort of personnel.Therefore,this paper will use numerical simulation to study the airflow distribution realized by different air supply and smoke exhaust systems in the cruise kitchen.The specific work content is as follows:Firstly,the physical model of commercial kitchen was established by the data parameters in the literature,and the corresponding boundary conditions were set.Then different turbulence models are used for numerical simulation and the simulated data are compared with the experimental results.The results show that the relative accuracy of RNG k-turbulence model is high.On this basis,a typical kitchen of the cruise ship is physically modeled and the corresponding boundary conditions are set.When comparing the air supply system in the cruise ship kitchen,the size of the air outlet and the Angle of the air outlet are compared,and a more suitable scheme is given.Then the four schemes of slat air supply and attached jet air supply,circular air supply and square air supply are compared,and the evaluation results of indoor thermal comfort,air supply effectiveness and pollutant discharge effectiveness are given.The analytic hierarchy process(ahp)was used to comprehensively evaluate the air supply from slit tuyere.In the comparative study of smoke exhaust system in cruise ship kitchen,the influence of structure form of smoke exhaust hood and air curtain form on indoor thermal comfort and pollutant discharge effectiveness was analyzed,and the more appropriate structure form of smoke exhaust hood was obtained.At last,the design suggestion of the minimum amount of smoke exhaust in different dishes is given.The numerical simulation results of airflow distribution in cruise galley can provide some reference for the design of air supply and smoke exhaust system in cruise galley.