The most important piece of information needed when sizing/rating vacuum systems is the actual air leakage rate. Without this data you will be wasting your time as this item cannot be determined with any reasonable accuracy using correlations, nomographs, etc.
Plan for an opportunity when the...
Greetings,
We have an existing process where we load a solid into a hopper on top of a batch reactor and charge to a liquid (well below flash point). The solid is granular (roughly 1/16"-1/8" dia) and is free flowing. Closer inspection does reveal the presence of a significant amount of...
Greetings,
Working on a prelimiary design for a new processing facility - reactor followed by 3 distillation columns. Need to develop a sized equipment list for approximate total installed costs.
The columns are to be operated under vacuum conditions and working on sizing vacuum pumps for the...
Greetings,
Considering starting a job search, looking for a good career building move. Not really unhappy where I am just see limited options for growth.
Saw some commentary about recruiters in other threads so though I would post a question of my own. Does anyone have any experience working...
Geetings,
We have a facility that uses H2S as a raw material. We currently handle in rail car quantities but due to safety concerns we want to look at producing H2S on site to reduce stored inventory. I am aware of technology that produces H2S continuously by reacting NaHS and HCl (or H2SO4.)...
Geetings,
Originally posted this on the Fluid Mechanics forum but no activity so I thought I would try here...
Was recently trying to calculate an accidental discharge of liquid from a tank (small hole) and was scratching my head about some things in Crane TP410 and was hoping to get some...
Geetings,
Was recently trying to calculate an accidental discharge of liquid from a tank (small hole) and was scratching my head about some things in Crane TP410 and was hoping to get some clarification. I was not sure if I should approach the leak rate calculation using an orifice equation or...
Until you develop some awareness that providing meaningful help with a technical question requires some technical information the only answer you will likely get is: Good Luck.
Sorry - I did not choose my wording well.
The real question I had is how to relate tank level to volume. If the tank is horizontal the level-volume relationship is not that involved. For a sloped tank the relationship is more complex.
The tank will be multipurpose - so the SG will change...
Greetings,
I am putting together a process design package for a batch plant expansion. We need to install a multipurpose cylindrical 40,000 gallon horizontal storage tank. To minimize holdup we are planning to slope the tank.
We would like to measure the liquid level in the tank so we know...
A star for you Mike - excellent advice.
First post I've ever seen that describes the correct way to move on from existing employment.
Employment is nothing more than a business deal - once either side finds it to be less than satifactory it is time to consider moving on.
Resignation letters...
I have been called 5 or 6 times over the last 20 years.
I the area where I live any time you involved in a motor vehicle episode where a ticket is issued (even a parking violation) you can bet a jury summons is on the way.
I went the first time - complete waste of 4 days.
Since then I ignore...
Another excellent reference is Planning, Estimating, and Control of Chemical Construction Projects by Navarrete and Cole. This book covers all types of construction time estimating from conceptual to detailed. Cuts to the chase without alot of excess verbiage.
mfetzien - you mentioned...
Greetings,
In the middle of a front end design for a high temperature (230-250 C) process (CSTR) that involves reacting fatty acids. Need to transfer lots of heat as the reaction is endothermic. The mixture is also viscous so considering using a pump around with a scrapped surface heat...
Greetings,
I am scaling up a new product that will be produced in a 3500 gallon batch reactor that is equipped with a anchor style impeller. Need to understand mixing characteristics and power draw for this unit. Trying to find some power number vs Reynolds number data for an anchor impeller...
