Railway Passenger Cars Meteorological Parameters Along The Model And Its Application

Design parameter about passenger train air-condition according tothe standard TB1951-87 published by the Ministry of Railway in China,in this standard: to the passenger train running in the south area of theBeijing, the summer out-train air design temperature is 35℃, relativehumidity is 60%, the Solar Radiation refers to the Wuhan area, theout-train wind speed no more than 5m/s. But to the moving passengertrain, if eager to analyze the dynamical characteristic, such as dynamicalheat load, dynamical energy consumption of the air-conditionsystem, temperature and relative humidity, etc. It is unreasonable thatengineering uses the meteorological data according with the standard indynamical simulation. So a meteorological data model out of forpassenger train along the railway line must be established.This thesis first looks back the development about the simulationtechnology of thermal statement of the coach at home and abroad, andthen on the basis of time series analysis and Artificial Neural Net, builds ameteorological data model out of passenger train along the railway line.Using a differential equation group and adding some boundaryconditions, describe the heat translation of the protected-wall, andeventually build a heat translation model of the whole coach. Taking useof the state space method discretes the protected-wall, in the end, solvethe equation group by the eigenvalue method. All the relative computerprograms are all designed by the MATLAB language. Simulation studiesthe change of air state parameters (the air temperature in couch hour byhour) in coach all the way under different running conditions.The results of this thesis contribute to the following study about theenergy consumption of train air-condition system and optimum controlthe thermal environment in coach.