98c606d760
Significantly updates the Engineering guidebook (more explicitly the Atmos section) to have a lot more relevant and useful information. Right now engineering has been getting update after update with no real change to the relevant guidebook entry. This has lead to a lot of out of date information and bad practices being prevalent in the guidebook, something that pains me to read.
44 lines
2.7 KiB
XML
44 lines
2.7 KiB
XML
<Document>
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# Pneumatic Valve
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The pneumatic valve is a bidirectional valve controlled via a pressure input.
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<Box>
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<GuideEntityEmbed Entity="PressureControlledValve"/>
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</Box>
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The pneumatic valve has 3 connections: input, output, and control.
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The "input" side will be the input/output connection with the highest pressure, and can switch sides, making the valve bidirectional.
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<Box>
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<GuideEntityEmbed Entity="GasPipeStraight" Caption="Input/Output"/>
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</Box>
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<Box>
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<GuideEntityEmbed Entity="GasPipeStraight" Caption="Control" Rotation="90"/>
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<GuideEntityEmbed Entity="PressureControlledValve" Caption=""/>
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<GuideEntityEmbed Entity="FloorTileItemSteel" Caption=""/>
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</Box>
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<Box>
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<GuideEntityEmbed Entity="GasPipeStraight" Caption="Input/Output"/>
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</Box>
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The valve will [color=green]open[/color] when the pressure on the output side is lower than the pressure on the control side by [color=orange][protodata="PressureControlledValve" comp="PressureControlledValve" member="Threshold"/] kPa[/color].
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The valve will [color=red]close[/color] when the pressure of the output side reaches the pressure of the control side within [color=orange][protodata="PressureControlledValve" comp="PressureControlledValve" member="Threshold"/] kPa[/color].
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For example, a pneumatic valve with a control pressure of 500 kPa will open when the output pressure is 500 kPa - [color=orange][protodata="PressureControlledValve" comp="PressureControlledValve" member="Threshold"/] kPa[/color] or lower, and it will close when the output pressure is 500 kPa - [color=orange][protodata="PressureControlledValve" comp="PressureControlledValve" member="Threshold"/] kPa[/color] or higher.
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The valve's control pressure is determined by a pipenet connection, and as such can be adjusted on the fly by a [textlink="pump" link="Pumps"] or another source of pressure control.
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## Differences to Pumps
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The pneumatic valve is different from a [textlink="pump" link="Pumps"] which moves gas via work.
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The pneumatic valve is a passive device that moves gas based on the higher pressure of the input gas, and as such it can sometimes fill volumes faster than a [textlink="pump" link="Pumps"] can.
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For example, a pneumatic valve with a control pressure of 500 kPa will fill a volume faster than a pressure [textlink="pump" link="Pumps"] set to 500 kPa.
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However, the [textlink="pump" link="Pumps"] will be able to maintain the pressure in the volume more accurately.
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The pneumatic valve can be used in a variety of applications, for example:
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- To automatically vent gasses in a burn chamber based on control input
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- The filling of a volume quickly, based on a customizable control pressure
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</Document>
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