Gas blender Toolkit, wrong calculation?

[daviddem]

Just a quick heads up: I updated the script on

https://thetheoreticaldiver.org/rch-cgi-bin/blender.pl

that it can now handle trimix blending as well.

Check this thread for more details about Gerg-2004 as applied to trimix blending: Real gas - the real deal

 

[daviddem]

I created quite big list of blender software here:

Gas Mixers & Tools

Some time ago i was searching for good Gas Mixer. I thought that i'll find some kind of list where i'll be able to pick what i need:) It wasn't so easy so i created my own list.Maybe it'll be handy for someone :p If anyone is using something different please leave a comment or PM me. On this...

scubaboard.com

IIRC PP Mixer v3.0 is using GREG 2004

Yes it does, it was one of the first to do so. Do you have a link to it, can't find it anymore?

 

[Rygar]

Yes it does, it was one of the first to do so. Do you have a link to it, can't find it anymore?

I've it on my disk but it required license. I got it directly from author Igor Pregelj.

 

[Agro]

Let's restart. I have an empty cylinder, I want to top off with oxygen and EAN34 to get 270 bar of EAN50.

Real Gas Blender sais
- 60.4 bar O2
- Rest EAN34

Meanwhile are there any other programs which are able to calculate this? Not air as top off gas but EAN34.

I do like Real Gas Blender but having one more tool is always great.

 

[Oleg G.]

Metric scuba tank info:
Scuba tank: 21.0 / 0.0 / 79.0 @ 0 bar, 24.0 liter, 0.0 barliter 0.00 mole 0.000 kg.
Desired gas mix: 50.0 / 0.0 / 50.0 @ 270 bar, 24.0 liter, 6441.9 barliter 269.14 mole 8.076 kg.

Initial temperature 15.0 C⁰

Check scuba tank: (21.0 / 0.0 / 79.0) 0.0 bar, 0.0 barliter, 0.000 kg, 0.00 mole

Add Oxygen 61.1 bar -> Up to: 61.1 bar in tank.
Add: Oxygen (100.0 / 0.0 / 0.0) 1561.5 barliter 65.25 mole
Check scuba tank: (100.0 / 0.0 / 0.0) 61.1 bar, 1561.5 barliter, 2.088 kg, 65.25 mole

Add EAN 34 208.9 bar -> Up to: 270.0 bar in tank.
Add: Topoff gas (34.0 / 0.0 / 66.0) 4880.5 barliter 203.89 mole
Check scuba tank: (50.0 / 0.0 / 50.0) 270.0 bar, 6441.9 barliter, 8.076 kg, 269.14 mole


Costs
Oxygen: 0.0020 * 1561.49 barliter = 3.1230 €
Total: 3.12 €

 

[PietroT]

I use this app for iPhone.

CCR Mixer

Tools for CCR Rebreather divers to calculate the optimal gas mix and gas blending application for Nitrox, Trimix and Heliair. Imperial and metric units. Functions: - Optimal CCR Mix (Best Mix, OC Bailout) - Mixing HeliAir - Mixing Nitrox (EANx) - Mixing Trimix (Tx) - Mixing Top up - Mixing What if…

apps.apple.com