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  1. jari001

    Material of Construction for Animal Blood Contaminated Water.

    You can look at vivarium design guidelines to see if there are special circumstances associated with cow fat and blood processing. You can also contact vendors that create carcass treatment systems for recommendations.
  2. jari001

    Acceptable levels of heat leak into a process cooling system

    Thank you for the suggestions, I will look into them.
  3. jari001

    Acceptable levels of heat leak into a process cooling system

    I am looking for some guidelines on how much heat leak is deemed reasonable for a -20°C glycol distribution system via the piping network. The piping network is mainly indoors and ranges from 4" sch. 40 pipe to 1" sch. 40 pipe (carbon steel) and will have 2" of either PIR or cellular glass type...
  4. jari001

    utility gas supply

    Generally speaking, all the parameters you mentioned play a role in flow through a pipe. To start from a pseudo-fundamental level to understand the amount each plays a role, look up "Darcy-Weisbach equation".
  5. jari001

    HPLC Solvent Load Management in a Lab and Occupancy Classification

    I'm working on a lab space project that has many HPLCs and the accompanying solvent supply and waste containers. The lab is on the second floor of the building. The amount of solvent associated with the HPLCs is causing an issue with the building occupancy classification and could require the...
  6. jari001

    Relief Rate Through a Full Open Globe Bypass Valve.

    If it's an existing valve, you can ask the vendor for the valve details.
  7. jari001

    Heat Exchanger Sizing Question

    To address the calculation method part of the question, using the NTU method is my advice when an outlet stream temperature is not known. Having the water max temperature be 95°F and a situation where the cooling water is anywhere near 90°F is going to be challenging, as others have mentioned...
  8. jari001

    Relief Rate Through a Full Open Globe Bypass Valve.

    Is there a reason why you can't use the actual Cv of the valve?
  9. jari001

    Heat transfer coefficient calculation ( Cooling system efficiency issues)

    I think you attached a different file than a sketch. You may want to remove this content ASAP.
  10. jari001

    Problems with evaporation crystallizer seal

    Did I miss the post that said the OP's process was related to sugar?
  11. jari001

    Growing industries with demand for mechanical engineers?

    Tell us what you're interested in, right now you're going to get a lot of opinions that range the wide field that is mechanical engineering. My 2 cents: companies that make specialty equipment for various industries (e.g. semiconductor and pharmaceutical) require mechanical engineers to do...
  12. jari001

    Problems with evaporation crystallizer seal

    What level of vacuum are you trying to maintain? There's also a hole that tubing seems to pass freely through that's up and to the right from the E-H LT...that's a vacuum leak for sure. At minimum, you need to make a one piece cover with proper agitator seals and proper connection types to...
  13. jari001

    Looking for math Refresher

    Another good source for notes and practice problems for Calc I through III and intro to Diff Eqs - https://tutorial.math.lamar.edu/classes/calci/calci.aspx
  14. jari001

    How to delete eng-tips profile?

    I spent 5 minutes poking around and I don't think there is a way to do what you're looking to do. The closest thing would be to email info@engineering.com and request to be deleted and wiped - just keep your fingers crossed.
  15. jari001

    unload HCL35% solution

    Hopefully the physical property data here can give you a better idea of what's happening to the solution throughout the unloading process. https://ordspub.epa.gov/ords/guideme_ext/f?p=guideme:gd:::::gd:hcl_6
  16. jari001

    Growing a Recently started Business

    @milkshakelake For Facebook, I think of it as claiming internet space so that it's under your control - pre-emptive protection against brand dilution. You never know when someone will Google your name (one person shop) or your company's name even after they get a referral. I see some individual...
  17. jari001

    Growing a Recently started Business

    Based on what the business development types do at my engineering firm (pharma industry specific), I'd say go to industry events on a consistent basis to build rapport with potential clients. Give some presentations if you can so people can build confidence in you. This mirrors milkshakelake's...
  18. jari001

    Pressure Drops in Y / Oblique Angle Globe Valves

    I would think/hope the manufacturer can answer which direction has less dP and why. Did the manufacturer indicated with direction has the lower dP? My 1 cent is that the plug component will see higher velocity with the flow coming in from the red direction and that would lead to high frictional...
  19. jari001

    Changing job etiquette

    Be honest and give your boss your thanks for trying to do right by you. Either way, at least you gave what you could to the relationship. I've left a handful of jobs as contracts ended and always felt the disappointment of leaving people behind. Nothing wrong with chatting with them on social...
  20. jari001

    Ultrasound mixers

    I didn't know ultrasonic mixing equipment above small pilot scale existed. I had to do some preliminary looking around for a cell and gene therapy project a while back, this company seemed like the most promising lead but I never had any detailed conversations with them...

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