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In order to facilitate the analysis, heat transfer formula can be used single flat walls, and change the formula of the form, write:

From this formula can more clearly see the influence factors of conduction heat transfer.

(1) the temperature difference (TL - T2): the formula can be seen, TL - T2 is larger, the value of Q is larger when the. That is to say, the kiln inner wall temperature is higher than the surface temperature of kiln wall, the conduction heat loss. For example, firing zone through the kiln wall heat loss than the preheating, cooling with a lot more, this is the truth.

(2) the heat transfer area (F value): from the formula can be seen, F value is greater, the Q value is bigger; the smaller the value of F, Q value is smaller.

(3) thermal conductivity (i.e. the lambda value): thermal conductivity is a representation of a physical quantity of some material thermal capacity, which indicates that the material in a unit of time, unit by unit area temperature gradient, heat transfer out. As can be seen from the formula, the lambda value is larger, the value of Q is larger when the.

(4) the thickness of L: the formula can be seen, L value is greater, the smaller the value of Q; the smaller the value of L, Q value is large. That is to say, the kiln wall is thick, conduction heat loss is small; kiln wall is thin, conductive heat loss is greater.

(5): formula of heat transfer time not clearly expressed, but in fact have included. Because according to the formula calculated is heat quantity per hour. Heat 2 hours, will be multiplied by 2; heat conduction in 3 hours, will be multiplied by 3, etc.. This tells us, the heat transfer by conduction time is longer, the heat loss is greater.
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