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Atmosphere

Specific heat	Variable

Description

Atmospherics is one of the main simulated systems in Stationeers. The game world consists of many individual units of atmosphere that interact with each other as well as structures and items that are in contact or intersecting with them.

Atmosphere Properties

Each unit of atmosphere simulates a number of properties, these properties generally change over time as the atmosphere interacts with the surroundings. Each planet has a different atmosphere, with different gases at different pressures and temperatures.

Contents

Each unit of atmosphere contains its' own composition of gasses and liquids represented in quantity by mol. Common gasses are Oxygen, Volatiles, Nitrogen, Carbon Dioxide and Pollutant. Since the "Go with the flow" update, Water is no longer present in atmosphere, and can no longer exist in the form of gas. Water is now part of a separate liquid system.

Specific Planetary Atmospheres

Planet	Pressure	Temperature			Gases
		Celsius	Kelvin		Carbon Dioxide	Nitrogen	Oxygen	Pollutants	Volatiles
Moon	Nil	N/A	N/A
Mars	2 - 3 KPa	-53 to 19	220 to 292		95%	3%	1%	1%
Europa	44 to 47 KPa	-149 to -140	124 to 133				100%
Mimas	Nil	N/A	N/A
Vulcan	24 to 56 KPa	127 to 665	400 to 938		21%			26%	53%
Venus	239 KPa	464	737		93.1%	6.9%		0.016%

Specific Heat Capacity

Stationeers attempts to simulate thermodynamics by having atmospheres contain heat energy. The effective temperature of one atmosphere depends on the heat energy relative to the amount of gasses in the atmosphere. This means that a very small atmosphere can reach very high temperatures with a small amount of added heat.

Material	Specific heat (Joule / mol)
Oxygen	21.1
Volatiles	20.4
Water	72.0
Nitrous Oxide	23.0
Carbon Dioxide	28.2
Pollutant	24.8
Nitrogen	20.6

Pressure

Pressure is a product of the contents of the atmosphere adjusting by temperature/heat.

Large Grid Atmosphere

The most common type of atmosphere is the large grid atmosphere. In the main game world, each large grid unit (the size of a Frame) contains one unit of atmosphere. The atmosphere in one large grid will exchange contents and heat with neighbouring atmospheres in order to equalize their content. An atmosphere in a vacuum will eventually spread out and dissipate in within a few large grid atmospheres of distance.

Pipe Network

Each individual pipe network is simulated with one atmosphere. If you break up a pipe network with a device such as a pump or valve, you effectively control the interaction of gasses between the two atmospheres.

Structures

Individual structures that contain atmospheres (static tanks, etc) will interact either with a pipe network or directly with the surrounding atmosphere, it depends on the configuration.

Items

Some items in the game contain their own units of atmosphere, such as Canisters, Suits and even the players' Lungs. Items with atmospheres, just like other atmospheres, can be heated by direct sunlight, leading to canisters bursting by pressure, or fuel autoigniting(exploding) at high pressure/temperature.

Gases and Liquids
Elements	Compounds	Mixtures	Other
		Fuel (66.6% H2 + 33.3% O2) Superfuel (50% H2 + 50% N2O) Air (75% N2 + 25% O2)	Atmosphere Coolant