| At present,the vertical mechanical ventilation of vertical shaft in the tunnel operation of highway is a problem of huge power consumption,which brings heavy economic burden to the tunnel operation.Using natural wind to realize tunnel ventilation has become the main research direction of energy conservation in operation.However,due to the randomness of natural wind,it is necessary to design a system and method to make full use of natural wind.Highway tunnel in the production of natural wind is a result of the combined action of many kinds of energy in nature,in order to realize the effective utilization of highway tunnel natural wind,combined with the simulation,analysis it is concluded that the temperature difference and the natural wind speed,and ventilation resistance and the relationship between natural wind speed,analysis the application effect of the solar tent,a variety of comprehensive utilization of energy is proved the feasibility of the application of natural ventilation in the tunnel.The meteorological data of natural ventilation system are collected based on the natural ventilation project of no.1 tunnel in leipao.With the measured meteorological data as the boundary condition,the ventilation system was modeled and simulated by Autodesk Inventor and Ansys fluent 1:1.At last,according to the analysis of ventilation resistance and the operation effect of natural ventilation system of no.1 tunnel in leijiapo,two kinds of improvement schemes of natural ventilation system of no.1 tunnel in leijiapo are given to improve ventilation efficiency.Natural ventilation of solar shed thermal tunnel can make full use of natural wind and solve the problem of excessive cost and maintenance cost in the operation and management of highway tunnel. |
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