Cryotube - Revision history

RA2lover: rewrote article based on User:RA2lover/Thermodynamics machinery notes

2026-01-23T10:15:15Z

rewrote article based on User:RA2lover/Thermodynamics machinery notes

Ams: /* Practical considerations */ A normal atmosphere has N2, not N2O.

2025-06-25T15:36:24Z

‎Practical considerations: A normal atmosphere has N2, not N2O.

Thoth: discuss some practical problems that must be overcome to properly operate the chamber

2025-06-23T17:42:25Z

discuss some practical problems that must be overcome to properly operate the chamber

Duke: /* Reviving Dead Players */ source

2024-07-24T16:27:51Z

‎Reviving Dead Players: source

Duke: fixed cost

2024-07-24T16:14:04Z

fixed cost

Duke: Changes to how information is displayed, removing outdated information

2024-07-24T16:12:43Z

Changes to how information is displayed, removing outdated information

TheSavageProdigy: Fixed Grammar

2023-08-08T01:26:27Z

Fixed Grammar

TheSavageProdigy: I have updated the information of this page to be accurate, up to date, and easy to understand for players who are confused about the parameters and use of the Cyrotube

2023-08-08T01:24:08Z

I have updated the information of this page to be accurate, up to date, and easy to understand for players who are confused about the parameters and use of the Cyrotube

TheSavageProdigy at 00:45, 8 August 2023

2023-08-08T00:45:37Z

TheSavageProdigy: Properly Fixed Image This Time

2023-08-07T21:34:41Z

Properly Fixed Image This Time

@@ Line 11: / Line 11: @@
   | name             = Cryotube
   | image            = [[File:Cyrotube.jpg|133KBpx|frameless|center|Cyrotube]]
-  | power_usage      = 10W
+  | power_usage      = 10-260W
   | placed_with_item = [[Kit (Cryotube)]]
   | placed_on_grid   = Small Grid
@@ Line 18: / Line 18: @@
 }}
 == Description ==
-A Cryotube can heal players and organs as well as revive dead players, the cryotube also functions as a [[sleeper]]; has one gas input, one power input, and one data input.
+A Cryotube can heal players and organs as well as revive dead players, the cryotube also functions as a [[sleeper]], has one gas input, one liquid input, one power connection and one data connection.
-=== Healing Players ===
+=== Healing/reviving players ===
-For healing, feed the cryotube any breathable air mix (Pure 02, O2/N2 mix etc.) at room temperature (0-30C). this will heal a player and repair damaged lungs. Be sure to have a system to filter out the C02.
+The cryotube needs at least 10L of pure liquid nitrogen below 130 K (-143.15 °C) in its liquid input network to heal/revive players.
 == Practical considerations ==
-The pipe connection on the unit is for gas pipes.  Avoid conditions that lead to significant build-up of liquid or ice inside the pipe.
+The cryotube has a considerable internal volume of 800 L, which exchanges gases with the room when open and with the gas input network when closed. Operation will result in cross-contamination between its gas input network and room atmospheres, and operating the cryotube on a high-pressure gas network will result in significant loss of gas when the door is opened.
-The stationeer must remove their pressure suit to get into the cryotube so it should be in a room with a breathable atmosphere.
+The internal atmosphere will exchange heat with the liquid input at a rate of 100 W during normal operation. This will likely result in the input network requiring active cooling for long periods of operation, and may result in undesired cooling of its input atmosphere. This heat exchange stops once the internal atmosphere reaches 0°C.
-When the cryotube is opened gas is exchanged with the surrounding atmosphere.  When it is closed gas is exchanged with the connected gas pipe.  Ideally the connected gas supply will be similar to the room gas mix (i.e. 81% N2, 19% O2 at 100kPa) .  However, since the stationeer will be exhaling CO2 this will end up in the connected gas supply.  When used as a resurrection chamber the CO2 that ends up in the cryogenic gas will freeze, and when too much crystalizes in the pipe, the pipe will fail.
+The stationeer must remove all of their items to get into the cryotube so it should be in a room with a breathable atmosphere.
 {{Data Network Header}}
 {{Data Parameters}}
 {| class="wikitable"
 |-

@@ Line 34: / Line 34: @@
 The stationeer must remove their pressure suit to get into the cryotube so it should be in a room with a breathable atmosphere.
-When the cryotube is opened gas is exchanged with the surrounding atmosphere.  When it is closed gas is exchanged with the connected gas pipe.  Ideally the connected gas supply will be similar to the room gas mix (i.e. 81% N2O, 19% O2 at 100kPa) .  However, since the stationeer will be exhaling CO2 this will end up in the connected gas supply.  When used as a resurrection chamber the CO2 that ends up in the cryogenic gas will freeze, and when too much crystalizes in the pipe, the pipe will fail.
+When the cryotube is opened gas is exchanged with the surrounding atmosphere.  When it is closed gas is exchanged with the connected gas pipe.  Ideally the connected gas supply will be similar to the room gas mix (i.e. 81% N2, 19% O2 at 100kPa) .  However, since the stationeer will be exhaling CO2 this will end up in the connected gas supply.  When used as a resurrection chamber the CO2 that ends up in the cryogenic gas will freeze, and when too much crystalizes in the pipe, the pipe will fail.
 === Suggestion ===

← Older revision		Revision as of 17:42, 23 June 2025
Line 28:		Line 28:
	To Revive a player, the cryotube must be fed more than 80Kpa of [[Nitrogen]] at a temperature of less than -150C, other gasses can be included so long as there is at least a partial pressure of 80kpa Nitrogen.<ref>[https://discord.com/channels/276525882049429515/811149668729356350/1138252121377079367 Discord] it's expecting 80 kPa of N2 at -150C - Risu</ref>		To Revive a player, the cryotube must be fed more than 80Kpa of [[Nitrogen]] at a temperature of less than -150C, other gasses can be included so long as there is at least a partial pressure of 80kpa Nitrogen.<ref>[https://discord.com/channels/276525882049429515/811149668729356350/1138252121377079367 Discord] it's expecting 80 kPa of N2 at -150C - Risu</ref>

		+	== Practical considerations ==
		+
		+	The pipe connection on the unit is for gas pipes. Avoid conditions that lead to significant build-up of liquid or ice inside the pipe.
		+
		+	The stationeer must remove their pressure suit to get into the cryotube so it should be in a room with a breathable atmosphere.
		+
		+	When the cryotube is opened gas is exchanged with the surrounding atmosphere. When it is closed gas is exchanged with the connected gas pipe. Ideally the connected gas supply will be similar to the room gas mix (i.e. 81% N2O, 19% O2 at 100kPa) . However, since the stationeer will be exhaling CO2 this will end up in the connected gas supply. When used as a resurrection chamber the CO2 that ends up in the cryogenic gas will freeze, and when too much crystalizes in the pipe, the pipe will fail.
		+
		+	=== Suggestion ===
		+
		+	One strategy for providing cryogenic gas to the chamber is to pressurize a pipe to 101 kPa with a breathable atmosphere (perhaps imported from the room containing the cryotube). Connect that pipe to the heat exchange connection of an [[Evaporation Chamber]] which is supplied with liquid nitrogen and is set for 800 kPa. This should (when supplied with cold enough liquid nitrogen) stabilize below -150C. This keeps the cryotube gas separate from the pure liquid nitrogen, and can be scrubbed of problematic gasses using [[Filtration]].
		+
		+	Remember that as the gas in the pipe cools the pressure diminishes, so a [[Pressure Regulator]] may be of use to load more gas from the room.

	{{Data Network Header}}		{{Data Network Header}}

← Older revision		Revision as of 16:27, 24 July 2024
Line 26:		Line 26:

	=== Reviving Dead Players ===		=== Reviving Dead Players ===
−	To Revive a player, the cryotube must be fed more than 80Kpa of [[Nitrogen]] at a temperature of less than -150C, other gasses can be included so long as there is at least a partial pressure of 80kpa Nitrogen.	+	To Revive a player, the cryotube must be fed more than 80Kpa of [[Nitrogen]] at a temperature of less than -150C, other gasses can be included so long as there is at least a partial pressure of 80kpa Nitrogen.<ref>[https://discord.com/channels/276525882049429515/811149668729356350/1138252121377079367 Discord] it's expecting 80 kPa of N2 at -150C - Risu</ref>

@@ Line 6: / Line 6: @@
   | name        = Kit (Cryotube)
   | createdwith = [[Hydraulic Pipe Bender]] '''MK2'''
-  | cost        = 10g [[Gold]], 10g [[Copper]], 10g [[Steel]]
+  | cost        = 10g [[Gold]], 10g [[Copper]], 35g [[Steel]], 5g [[Silver]]
 }}
 {{Structurebox

@@ Line 24: / Line 24: @@
 rocket2guns  [developer] 2 Jul, 2017 @ 4:28am
 Cybernetics for organs are certain, as we already have the heart and lungs as functional organs in the game. We are making these "growable" in cryotubes, but having organs able to be manufactured is also something we want to do.</ref>
-As of 06/09/2020 you are able to enter a powered cryotube and "regrow" damage to my lungs.
+As of 06/09/2020 you are able to enter a powered cryotube and "regrow" damage to your lungs.
 Since the Deep Miner/Centrifuge/Chute Update (9/20/22), the Cryotube works when filled with an oxygen-nitrogen mixed gas, and that gas will expel from the tube into the room when opened. It does not appear to backflow, nor does the player seem to convert the O<sub>2</sub> to CO<sub>2</sub>, but that requires further testing. There is a single input for gas in the back, and it can accept <i>either</i> O<sub>2</sub> <i>or</i> chilled N<sub>2</sub>O. Testing indicates that even while unpowered, the tube "freezes" a player in time, stopping hunger/thirst/etc. When powered and supplied with O<sub>2</sub>, it appears to heal the organs of living players. When powered and supplied with -150C N<sub>2</sub>O, it can revive a dead co-player in a multiplayer setting. If a living player enters the -150C N<sub>2</sub>O tube, they slowly die but stay "frozen" in the game, until the door is opened and the game recognizes the player has died.

@@ Line 17: / Line 17: @@
   | item_rec1        = [[Kit (Cryotube)]]
 }}
 == History == <!--T:2-->