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− | [[Category:Atmospherics]]
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− | [[Category:Items]]
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| <languages /> | | <languages /> |
| <translate> | | <translate> |
| <!--T:1--> | | <!--T:1--> |
| {{Itembox | | {{Itembox |
− | | name = Kit (Gas Mixer) | + | | name = Pipe Gas Mixer |
| | image = [[File:ItemPipeGasMixer.png]] | | | image = [[File:ItemPipeGasMixer.png]] |
− | | stacks = Yes (5) | + | | stacks = 1 |
| | createdwith = [[Hydraulic Pipe Bender]], [[Fabricator]] | | | createdwith = [[Hydraulic Pipe Bender]], [[Fabricator]] |
− | | cost = 2g [[Iron]], 2g [[Gold]], 2g [[Copper]] <!-- cost Ok as of 29.6.2022 --> | + | | cost = 2g [[Iron]], 2g [[Gold]], 2g [[Copper]] |
− | }}
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− | {{Structurebox
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− | | name = Pipe Gas Mixer
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− | | paintable = Yes
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− | | power_usage = 100W
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− | | placed_with_item = Kit (Gas Mixer)
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− | | placed_on_grid = Small Grid
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| }} | | }} |
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| == Description == <!--T:2--> | | == Description == <!--T:2--> |
− | Used to mix two gases in proportions ranging from 0-100%. A must have for the [[Furnace]]. Input 1 is the straight thorough route, and Input 2 is the side entry. | + | Used to mix two gasses in proportions ranging from 0-100%. A must have for the [[Furnace]] |
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− | == Setting ==
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− | The setting wheel is set in percent of input 1. Holding 'c' allows you to set the dial in 1 percent increments. It's possible to set the ratio with an arbitrary precision using the labeler or a [[Kit (Logic I/O)|Logic Writer]], but the dial will always show rounded to the nearest percent when you look at it.
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− | == Temperature Dependence ==
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− | The gas mixer will mix the input gases based on moles of gas in the ratio provided by the setting, but only if the gases at input 1 and input 2 are at the same temperature. This means if you're trying to mix [[Volatiles]] and [[Oxygen]] at a 2:1 ratio, make sure both input gases are at the same temperature.
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− | While the gas mixer ignores input pressures, the mixer will take more moles of the colder gas than you would expect. For instance, if you set the gas mixer to a 1:1 ratio and both inputs contain just [[Carbon Dioxide]], input 1 at 2000 K and input 2 at 1000K, it will take twice as much of the gas from input 2, so your resultant gas will be Carbon Dioxide at 1333.33 K.
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− | Assuming you're mixing two identical gases with different temperatures, and the temperature of the hot gas at input 1 is "T1", the temperature of the cold gas at input 2 is "T2" and the mixer is set to "S" percent, then the resulting gas temperature will be given by this formula:
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− | <code>Tout = (T1 x 100) / (S + (100-S) x T1 / T2)</code>
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− | If you know your two input temperatures and your desired output temperature (which must be between T1 and T2), you can re-arrange this to solve for "S", which will tell you what to set the dial to in order to get the desired temperature:
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− | <code>S = (100/(T2-T1)) x ((T1 x T2 / Tout) - T1)</code>
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− | == Precision gas mixing ==
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− | When you want to achieve a precise output ratio (r') you must take into account the temperatures of the inputs when calculating the setting of the gas mixer (r).
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− | <code>r = (r'T1) / ((1-r')T2+r'T1)</code>
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− | To the right is a derivation of the above equation. [[File:Gas Mixer Calc.png|thumb|Gas Mixer Calculation for Different Input Temperatures]]
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− | If there is already gas in the output pipe network (m1 + m2), it is possible to calculate the goal (r') of the gas mixer which can be added to the pipe network to achieve a target gas ratio (r")
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− | <code>b=(1-r")m1 - r" x m2</code>
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− | <code>r' = (b x T2 - r" x V x 12.2) / ( b x (T2-T1) - V x 12.2)</code>
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| {{Data Network Header}} | | {{Data Network Header}} |
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| |} | | |} |
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− | == External Links ==
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− | * [https://youtu.be/0CQL88PXkeE Precision Gas Mixing (youtube)]
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− | * [http://www.purplefrog.com/~thoth/art/stationeers-furnace/gas-mixer.html precision gas mixing mathematical derivation]
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| </translate> | | </translate> |