You're probably right about me not knowing what I don't know, and I should have clarified more. I am not fully left to my own devices, as my supervisor is always there to answer any questions I have and look over my work. However, I want to be able to do some learning on my own time, so I was...
I am a chemical engineer fresh out of college and have landed myself a job as a project engineer. Part of my job is spec-ing and ordering electrical parts like actuators, VFDs, proximity switches (pressure and level switches too), etc. I lack a lot of the basic knowledge when it comes to...
Yeah, I knew my problem was with my gc, but correcting it would cause my C variable to be wrong. I ended up converting imperial units to metric units, solving using the method in the article, then converting my final answer to imperial units. There is still issue with this method, but my answer...
To “work around” this problem, I solved for the area by converting from imperial to metric, using the article’s constants and formulas, and then converting back to imperial units. I compared the answer my sheet gives me with other sources I have, and the results were close. At most, it’s off by...
I am trying to make a pressure relief valve calculation in Excel for determining the minimum required area of discharge to get a desired mass flow rate. I am using the ACHIE relief valve sizing article and the example in it to validate my calculations. However, when I convert the metric units to...
My vendor told me they had nothing in their catalog that would work. Thank you for bringing this to my attention. However, I do not understand the maximum full-scale value for liquid? Where does this number come from? Also, the gas density at operating conditions will change, so why does the...
I like method 2. However, density is intrinsically related to pressure, as described by the equation ( P = \rho g h ). Therefore, if the density of the gas changes, the pressure should also change. I am confused as to why this logic does not hold up.
Thank you for your detailed response. Unfortunately, Coriolis meters are not good for gases. Additonally, in order to obtain an adequate destruction efficiency of organics in the oxidizer, there must be a minimum residence time of 1 second. This is why the flow rate needs to be measured and...
I apologize for the late response. I do not know what you mean by antibes. However, I believe I have discovered an answer to my question. Thank you for replying to my post.
I am currently working on a process that uses inert nitrogen (N₂) to purge organics from a tank. The organics are then fed through a process line into an oxidizer. Initially, the process line contains primarily organics, but as the tank empties, the process line becomes more nitrogen-rich. This...
I had a coworker once tell me there is a great textbook that has a list of flow coefficients for poppet valves, but he cannot remember the name or author of the textbook. If anyone knows of a textbook, or other source, where I can find these values, please let me know.
Below is an example of...
Here is a fictitious example to clarify my question.
Regarding the % composition of the mixture, what does it mean that propane and butane share the same area %?
My guess is that a certain percentage of propane and a certain percentage of butane make up the 15%. But, if that is the case, how...
Got a list of VOCs but have no solid method of determining the heating values (BTU/lb) or (BTU/scf).
Ethylene carbonate (EC)
Dimethyl carbonate (DMC)
Ethyl methyl carbonate (EMC)
Diethyl carbonate (DEC)
Propylene carbonate (PC)
Propyl propionate
Ethylene glycol (EG)
N-methyl pyrrolidone
Does...