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Recent content by GregLPease

  1. GregLPease

    CO2 expansion for water cooling... tips?

    Montemayor: Your post is chalk full of great information. It was even more than I was looking for and I really appreciate the time you took to write back. Regarding the sputtering: in your experience would simply increasing the tubing diameter help much with attaining a stead-state flow and...
  2. GregLPease

    CO2 expansion for water cooling... tips?

    Montemayor: I appreciate your response. Yes, this is my first thread here. I stumbled upon this site while searching for some example real-world gas expansion and cooling applications. The quality of the replies here and the high user activity is amazing. This is truly a great resource...
  3. GregLPease

    CO2 expansion for water cooling... tips?

    Thanks for the response JStephen. Good question. The purpose of the copper cylinder is that we needed something with significant thermal mass. We are attempting to measure the temperature profile once the cooling is removed and the cylinder temperature returns to equilibrium with the water...
  4. GregLPease

    CO2 expansion for water cooling... tips?

    Compressed CO2 from a tank at ~2700psi is released into a 1/8" OD copper pipe. The 1/8" OD copper pipe travels to a 3" long, 2" OD copper cylinder. This copper cylinder is submerged and centered in a 6" dia pipe flowing water at ambient temperatures and moderate flow rates. The cylinder...
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