In addition, the author also rested on "Civil architecture Hot working Design Standard" to the Xi'an area commonly used 6mm thick ordinary monolithic glass, the 8mm thick ordinary monolithic glass and the 6mm+9A+6mm center spatial glass, the 10mm+9A+10mm center spatial glass heat transfer coefficient has carried on the computation and the comparison.
In this paper,we obtained the optimizing models of railway refrigerator car's thickness of insulating layer and the coefficient of heat transfer through theoretic analysis.
Concludes that the relative uncertainty of the whole bed and the internal and the external tube condensing heat transfer coefficients are ±7.19%, ±4.95%, and ±8.73% respectively.
The experimental results show that compared with the same water chiller using R22 as a refrigerant, the refrigeration capacity, brake kilowatt and the overall heat transfer coefficients of the condenser and evaporator of the R404A screw water chiller all increase to some degree, but COP decreases slightly.
Experimental results reveal that this diameter exerts strong influence to the overall heat transfer coefficients and that on the wall, but irrelevant to that in the central zone.
Method and formulae for calculating the mean forced convection heat-transfer coefficient of the blade surface,as well as for the blade passage's bottom wall,are introduced.
A dimentionless correlation of the above pool boiling film heat-transfer coefficient,which gives a relative error within ±15％ between the predicted and experimental values,is established.
High complex heat-transfer coefficient (HCHTC) and low resistance coefficient (LRC) is the important economic technical indexes for heat-exchanger, To realize HCHTC and LRC, various measures are introduced.
The present work focused on the determination of the interfacial heat transfer coefficient (IHTC) between metal and die during the high pressure die casting (HPDC) process.
Considering the effect of acute variety of the fluid property on heat transfer, the coreelation of heat transfer coefficient on the top of the internally ribbed tube was provided.
Empirical correlation of heat transfer coefficient was suggested after calculating the two key parameters, solids suspension density and furnace temperature.
The obtained solution is used to find the characteristics of nonsteady heat transfer (the coefficient of heat transfer and the Stanton number) on the front surface of the shield.
It is demonstrated that the mean coefficient of heat transfer over the channel surface for adiabatic fins first increases with the number of fins to reach a maximum and then decreases by approximately 30% compared to smooth walls.
The distributions of the pressure, friction, and heat transfer coefficients in the separation zone of a laminar boundary layer ahead of a wedge on a plate are calculated approximately.
The distribution along the channel length of the frictional resistance and heat transfer coefficients on the wall are obtained, and the variation of these coefficients with the load parameter is studied.
The method and formula to calculate the mean forced convection heat-transfer coefficient of the surface of the blade and for the bottom wall of the blade passage, are introduced.
The results of analysis of sensitivity factors are used to find the time intervals at which the experimental data are most suitable for finding the heat-transfer coefficient and the flow temperature.
The concept of the average temperature of a bubble ensemble is introduced to calculate the heat-transfer coefficient at either stage, and a solution is obtained for complete ensembles.
传热系数
heat transfer coefficient
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