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Calculate pressure increase due to heating of water in closed chamber

Physics Asked by matsmcfly on April 27, 2021

I would like to be able to calculate the increase in pressure generated by heating a liquid in a closed chamber (no air gap, completely filled). For example, I want to make sure that I don’t exceed the pressure limit of 1.0 GPa when I heat the sample to 100 $^circ$C.

I have a piece of equipment that allows me to fill the sample chamber (at room temperature) and apply load to generate a target pressure. I would like to use this for some high pressure/temperature studies, but I need to ensure that I don’t exceed the pressure limit (1.0 GPa) for the vessel. This calculation would let me know what pressure I can apply at room temperature to stay within the safety limit when heating to 100 $^circ$C.

Typically this is done with water systems, but I will also apply to other fluids such as ethanol/silicone oil etc.

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