Helium/trimix fflow through a CMF jet.

**Freef** · 30th April 2007, 18:55

I've been looking for info on the way helium effects the flow rate on CMF jets, and a search on here using combinations of semi closed, CMF, flow, trimix and helium hasn't turned anything up.

Anyone know of any info, or where to look on here?

Ta in advance.

bletso · 30th April 2007, 23:12

David,

I did some calculations a long time ago for SCR trimix/nitrox. See http://www.airheadsscuba.com/flowcalc.html

Dale

gibbogeo · 1st May 2007, 17:55

Quote: (Originally Posted by Freef)

I've been looking for info on the way helium effects the flow rate on CMF jets, and a search on here using combinations of semi closed, CMF, flow, trimix and helium hasn't turned anything up.

Anyone know of any info, or where to look on here?

Ta in advance.

Do you have the document

Principles of Constant Mass Flow

or

How does the Dräger Dolphin Work?

by Nevil Adkins?

It explain the theory behind the CMF and how different gases affect the flow.

It was on the old Draeger Dolphin mailing list document folder.

bletso · 1st May 2007, 22:48

Quote: (Originally Posted by gibbogeo)

Do you have the document

Principles of Constant Mass Flow

or

How does the Dräger Dolphin Work?

by Nevil Adkins?

It explain the theory behind the CMF and how different gases affect the flow.

It was on the old Draeger Dolphin mailing list document folder.

You can find a copy of it at http://www.therebreathersite.nl/01_I...phins_work.htm

Dale

30th April 2007, 18:55	#1 (permalink)
Freef Custom Title Disallowed! Current Rebreather/s: Dolphin Other Rebreather/s: Dolphin Join Date: Jan 2006 Location: Land of the Freef, UK. Posts: 1,356	Helium/trimix fflow through a CMF jet. I've been looking for info on the way helium effects the flow rate on CMF jets, and a search on here using combinations of semi closed, CMF, flow, trimix and helium hasn't turned anything up. Anyone know of any info, or where to look on here? Ta in advance. __________________ David. Currently owner of two differently sized ankles.
(Offline)

30th April 2007, 23:12	#2 (permalink)
bletso An independent diver. Current Rebreather/s: Dolphin Home Build Other Rebreather/s: Dolphin Home Build Join Date: May 2006 Location: Louisville, KY, USA Posts: 256	Re: Helium/trimix fflow through a CMF jet. David, I did some calculations a long time ago for SCR trimix/nitrox. See http://www.airheadsscuba.com/flowcalc.html Dale
(Offline)

1st May 2007, 17:55	#3 (permalink)
gibbogeo Gilberto Bonaga, Italy Current Rebreather/s: Classic Kiss Dolphin Home Build Other Rebreather/s: Dolphin Home Build Join Date: Sep 2005 Location: italy Posts: 318	Re: Helium/trimix fflow through a CMF jet. Quote: (Originally Posted by Freef) I've been looking for info on the way helium effects the flow rate on CMF jets, and a search on here using combinations of semi closed, CMF, flow, trimix and helium hasn't turned anything up. Anyone know of any info, or where to look on here? Ta in advance. Do you have the document Principles of Constant Mass Flow or How does the Dräger Dolphin Work? by Nevil Adkins? It explain the theory behind the CMF and how different gases affect the flow. It was on the old Draeger Dolphin mailing list document folder.
(Offline)

1st May 2007, 22:48	#4 (permalink)
bletso An independent diver. Current Rebreather/s: Dolphin Home Build Other Rebreather/s: Dolphin Home Build Join Date: May 2006 Location: Louisville, KY, USA Posts: 256	Re: Helium/trimix fflow through a CMF jet. Quote: (Originally Posted by gibbogeo) Do you have the document Principles of Constant Mass Flow or How does the Dräger Dolphin Work? by Nevil Adkins? It explain the theory behind the CMF and how different gases affect the flow. It was on the old Draeger Dolphin mailing list document folder. You can find a copy of it at http://www.therebreathersite.nl/01_I...phins_work.htm Dale
(Offline)

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode