Could some expert take a look and see if there’s an issue with this example calculation for the breathing valve?
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The main issue is that the total amount of air drawn in, as calculated earlier, differs from the value used to determine the diameter here. The calculations for the amount of air exhaled and for emergency release during a fire are correct. It seems like this book is quite reliable; such mistakes shouldn’t occur. I would appreciate it if someone experienced could help verify this. O(∩_∩)O Thank you. Relevant chapters can be found at @waaabc
Call @*lihuagong @ylb913 @ZhizheMing
This post was last edited by ylb913 on 2016-1-2 at 12:39. It was indeed a typing error. The actual calculation process can be seen clearly from the chart. @longkui1990
I feel the same way. But I think the book as a whole is quite good, so there shouldn’t be any problems like that. . .
It’s normal to have a few appear as well； First of all, it’s very difficult for the author themselves to identify their own flaws; once a piece of work is created, it’s easy to act on impulse ； Secondly, what is reviewed there is often just signing a name to earn some money, as they are more well-known. This is even more true when it comes to design!
Haha, that makes sense. . Happy New Year to you too, buddy!
Please do not post meaningless messages; active participation in discussions, like those from the people above, is welcome