In 1997,traffical environment pollution and moteorologic conditions was measured in nine surtveillance sites on the traffical highway in Chongqing and compared with in 1993.The results showed that the relative humidity was 85% 95% in winter,the highest air temperature was 41℃,solar radiation heat was 1.4 cal/cm 2/min in summer.
By continuous or interanittent radiation heating experiment with a microwave power system in 2.45GHz,it is shown that instantaneous volume heating can be achieved by microwave heating through radiation heat transfer.
The factors, which influence the substrate temperature, are discussed in detail and the results shows that the substrate temperature is mainly decided by ion bombardment, heat radiation, heat conductivity.
The solid flame radiation model given by the U.S.Nuclear Regulatory Commission is applied in the calculation. A calculation example is presented and the planar distribution of the radiation heat flux is obtained. This study provides an idea for the engineering calculation of the radiation heat flux in the fire space.
Through the comprehensive analysis for these factors such as heat conduction, heat radiation, heat convection and changeable thermal property parameters, the continuous moving and 3D transient state FE model of the temperature field of direct metal laser sintering has been established based on ANSYS software.
This paper develops a theoretical model of the heat radiation effect and the shock wave characteristics for liquid hypergolic rocket bipropellant explosion,as well as the explosion experimental method. The calculated and experimental results of the diameter,duration, temperature,radiation heat flows of the fireball, overpressure of the shock wave are described for N2O4/UDMH liquid propellant explosion.
This paper analyzes the change of heat transfer coefficient of evaporator,the influence of burner structure on gas outlet temperature of furnace,and the distribution of radiation heat,and gives expressions to steam quality in separator and steam condensed in superheater.