Ryan Neely
Contributor
I'm currently reading the aforementioned book. I've made it through Page 45. The book is dense and tightly packed with information. Now, for full transparency: I am not a technical diver, nor am I planning to become one anytime soon. (I think it would be fun and challenging to learn and use new skills like this, but my current lifestyle and dive buddy will likely never allow for that route for me.) I am reading the book for recreation and theory only. I mention this because it is highly possible that the questions I have from the text may come from a mere knowledge gap that I otherwise would have discovered elsewhere (in a course, for example).
Here are my questions:
Several times Salama has referenced alveolar water vapor pressure. During these mentions, he provides a number (0.0493) but does not explain where that number comes from or offer a label (such as bar or atm). My assumption had been that the number actually referred to the specific alveolar water vapor pressure within the lungs at sea level, but I cannot find a reference to corroborate this assumption.
Can anyone help me understand what his number is and where it comes from?
Second, at the end of Chapter 5, Salama is discussing Isobaric Counterdiffusion. During this discussion, he provides two equations to illustrate the rule of fifth. When solving the equations, Salama appears to move a decimal point without explanation. One of those equations is as follows:
(0.25 * 4 * 0.015) + (0.55 * 4 * 0.067) = 0.015 + 0.1474 = 1.624 bar
Admittedly, it has been a few years since I've dealt with advanced maths, but I'm confused over the decimal point shift.
Can anyone help me understand this shift as well?
Thanks in advance!
Here are my questions:
Several times Salama has referenced alveolar water vapor pressure. During these mentions, he provides a number (0.0493) but does not explain where that number comes from or offer a label (such as bar or atm). My assumption had been that the number actually referred to the specific alveolar water vapor pressure within the lungs at sea level, but I cannot find a reference to corroborate this assumption.
Can anyone help me understand what his number is and where it comes from?
Second, at the end of Chapter 5, Salama is discussing Isobaric Counterdiffusion. During this discussion, he provides two equations to illustrate the rule of fifth. When solving the equations, Salama appears to move a decimal point without explanation. One of those equations is as follows:
(0.25 * 4 * 0.015) + (0.55 * 4 * 0.067) = 0.015 + 0.1474 = 1.624 bar
Admittedly, it has been a few years since I've dealt with advanced maths, but I'm confused over the decimal point shift.
Can anyone help me understand this shift as well?
Thanks in advance!