Question-and-Answer Resource for the Building Energy Modeling Community
Get started with the Help page
Ask Your Question

Refrigerant Thermodynamic Properties Data

asked 2024-02-09 08:49:58 -0600

Zakaria's avatar

updated 2024-02-13 13:45:22 -0600

Hello everyone!

I'm looking for a tool or website where I can find thermodynamic properties data for refrigerants, aside from what's provided by EnergyPlus. Particularly R-455A or other environmentally friendly options used in refrigeration applications.

I've come across two websites, Climalife and Freon, but the data they offer doesn't include specific heat data for the saturated state. However, they do provide entropy data.

Or how to generate the properties using REFPROP, specifically for the FluidProperties:Superheated Object, where I am having some difficulties (see answer below).

Can anyone suggest alternative sources or solutions?


edit retag flag offensive close merge delete

2 Answers

Sort by ยป oldest newest most voted

answered 2024-02-10 11:04:19 -0600

It's not free, but REFPROP:

edit flag offensive delete link more

answered 2024-02-13 12:12:52 -0600

Zakaria's avatar

updated 2024-02-13 14:10:00 -0600

@ericringold, thank you for your valuable insights. Could you provide guidance on generating thermodynamic properties for superheated temperatures, or share any relevant information that might assist in generating refrigeration properties for EnergyPlus?

In my exploration of REFPROP's functionality, I've compared the properties of R-134a as generated by REFPROP with those available in the EnergyPlus dataset. Saturated properties align closely, as illustrated in the accompanying figure below.

image description

However, anomalies appear in the superheat data. I selected two pressure values and compared the fluid property data generated by REFPROP with that of EnergyPlus for these pressure values. The figure below illustrates enthalpy and density in the superheat range. Notably, for P= 10200 Pa, all five initial values are zero in the EnergyPlus data set, whereas REFPROP generates non-zero data. However, from the sixth value onwards (7 onwards), the data generated is closely aligned with that of EnergyPlus.

image description

edit flag offensive delete link more


Sorry, I don't have any insights here. You might find some help here:

ericringold's avatar ericringold  ( 2024-02-13 14:28:15 -0600 )edit

Your Answer

Please start posting anonymously - your entry will be published after you log in or create a new account.

Add Answer


Question Tools

1 follower


Asked: 2024-02-09 08:49:58 -0600

Seen: 306 times

Last updated: Feb 13