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人们经常用百米漏风率来衡量局部通风风筒的漏风情况,但是有的往往把风筒的平均百米漏风率与一百米风筒的漏风率两者混淆起来,这就产生许多错误。例如按百米漏风率为10％推算200米的漏风率为20％,500米的漏风率为50％,那么1000米的漏风率就是100％,风完全漏完了,如果风筒长1100米,岂不出现漏风率为110％的错误了吗。再如,有的在测定风筒的百米漏风率时,用风筒全长的百米数去除风筒的总漏风率,得出风筒的百米漏风
People often use the air leakage rate of 100 meters to measure the leakage of the local ventilation ducts, but some often mistakes the average one hundred meters of air leakage of the ducts and the one of the hundred meters of air leakage. For example, if the air leakage rate of 100 meters is 10%, the air leakage rate of 200 meters is 20% and the air leakage rate of 500 meters is 50%, then the air leakage rate of 1000 meters is 100% Is it wrong to have a 110% leakage rate? Again, some in the determination of windmills meters leakage rate, the total length of the windmills with a hundred meters to remove the total air leakage rate of the windmills, windmills have been found air leakage