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Critical Temperature of Liquids

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Old   March 18, 2015, 04:53
Default Critical Temperature of Liquids
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Raghav
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Hello all,
Is it possible to operate fluids like pentane, hexane, butane etc above their critical temperature? If yes, then what are its consequences? If not, how do i determine the maximum pressure and teperature under which they can be operated?
Ps: sorry for the error

Last edited by raghav612; March 18, 2015 at 10:34.
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Old   March 18, 2015, 10:14
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Boris Marovic
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I'm confused. Do you mean to use them as gas passing the critical pressure becoming liquid or as liquid passing the critical pressure? I'm asking because your header was kind of misleading to the rest of the post.
In general you can use Real Gas as a fluid which considered the supercritical region too. But you will need the properties as only Methane and Propane is available in the database.

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Old   March 18, 2015, 10:31
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Raghav
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Hello Boris,

Sorry there was a mistake on my side. I am operating the fluid just below its critical pressure but above its critical temperature. Is this scenario practically possible?
Ps: I am trying to simulate a Rankine Cycle
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