Numerical simulation and experimental study of influence of ventilation on temperature distribution in long and narrow space;

For the long and narrow space at non-normal temperature,it is difficult to lower the temperature to a satisfied degree only by ventilation,but as an assistant method,the fine mist would be effective.

In the case of long and narrow space where a great deal of heat producing, it is feasible to use fine mist as an assistant means to lower the temperature.

In this paper,a theoretical study on active control of within enclosed space surrounded by flexiblestructure is accomplished.

Based on the basic theory of ANC within the enclosed space,this paper models the enclosed space with the COMSOL software,and presents the simulation and analysis effects of noise reduction which is derived from the numbers and location of the secondary noise resources.

The result of the numerical simulation of heat dissipation in a closed cavity is compared with the experiment result.

By applying the basic principle of thermodynamics, the expression of characteristic index B to the humidity control in a closed space is derived and is analysed and explained from the angle of two phase equilibrium.

Optimal strategy for the second source in enclosure under active noise control

Active control of structural acoustic radiation into an enclosure based on radiation modes