"Control Hunting" in Heat Exchanger - French Translation
"Control Hunting" in Heat Exchanger - French Translation
(OP)
I am looking for the french term for "control hunting", as describe here:
As condensate backs up in the exchanger, the heat transfer rate to the process is greatly reduced. The control valve opens wide enough to allow flow into the exchanger. As condensate drains out, the steam space is now greater and the steam pressure increases. The process overheats, the control valve closes down, and the cycle repeats.
I tried to use all the translation resources I know of, but could not come up with anything. Does anyone knows?
As condensate backs up in the exchanger, the heat transfer rate to the process is greatly reduced. The control valve opens wide enough to allow flow into the exchanger. As condensate drains out, the steam space is now greater and the steam pressure increases. The process overheats, the control valve closes down, and the cycle repeats.
I tried to use all the translation resources I know of, but could not come up with anything. Does anyone knows?





RE: "Control Hunting" in Heat Exchanger - French Translation
unstable action, instability, endless cycling, oscillation, etc...
Good on ya,
Goober Dave
RE: "Control Hunting" in Heat Exchanger - French Translation
RE: "Control Hunting" in Heat Exchanger - French Translation
As of now, I am considering "oscillation", but the direct translation of "control oscillation" never comes up to this heat exchanger control phenomenon. So I will just wait a while and see what other answers come up.
Thanks
RE: "Control Hunting" in Heat Exchanger - French Translation
RE: "Control Hunting" in Heat Exchanger - French Translation
RE: "Control Hunting" in Heat Exchanger - French Translation
rmw
RE: "Control Hunting" in Heat Exchanger - French Translation
RE: "Control Hunting" in Heat Exchanger - French Translation
Run it past your client first before publishing!!
Good on ya,
Goober Dave
RE: "Control Hunting" in Heat Exchanger - French Translation
RE: "Control Hunting" in Heat Exchanger - French Translation
I would define this reference as reliable considering the source is Spirax.
Please consider it not unusual to see the word "hunting" even in French paper (despite their proverbial nationalism)
RE: "Control Hunting" in Heat Exchanger - French Translation
- Steve
RE: "Control Hunting" in Heat Exchanger - French Translation
We are speculating on the definition of "control hunting" without having more info than the general decription you have provided. Sorry but we cannot guess the definition of a SPECIFIC term based on such a GENERAL description. Is what you have described the exact real definition of "control hunting" or is this your understanding of it in a heat exchanger context?
BTW, I'm french (from France).
Salut.
"We don't believe things because they are true, things are true because we believe them."
RE: "Control Hunting" in Heat Exchanger - French Translation
RE: "Control Hunting" in Heat Exchanger - French Translation
I do know there are many phenomenons for which the term "control hunting" does apply. However, this is not a search for the definition; I am really looking for the best french term currently used to describe the very same problem I quoted regarding heat exchanger control. (And somehow, I failed to see just how "general" that description was in the first message!)
As people working in highly technical environment, I believe it is relevant to wonder if there is a precise term in use, or if I should stick to "oscillation de contrôle". And french is usually very rich, technically speaking (even sometimes too much! lol)
RE: "Control Hunting" in Heat Exchanger - French Translation
And, it is not the control valve or controls that are hunting. The control valve is doing what it is being told to do, opening sometimes, closing at others when commanded. It is the process that is hunting for a happy place.
rmw
RE: "Control Hunting" in Heat Exchanger - French Translation
Take a glance at page three of the attached paper
http://www.maxi-therm.net/docs_pdf/1e_fr.pdf
RE: "Control Hunting" in Heat Exchanger - French Translation
I don't know whether you already know this resource, if not give it shot.
http://w
RE: "Control Hunting" in Heat Exchanger - French Translation
screen shots are from Honeywell's UDC 3200 controller manuals 51-52-25-119