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REFPROPS



Reference - Model - Compare

An add on for excel to automatically reference published thermodynamic data for hundreds of fluids. Can quickly model ventilation, heating, and refrigeration systems to see what happens when one input like ambient temperature changes.

Name:

REFPROPS

URL:    

https://www.nist.gov/srd/refprop

Cost:

$325 US

Details related to copyright use, licensing, intellectual property:

Site licensing is available for companies. It doesn't own any work or findings done with the module.

Platform (Windows and/or Mac based; not applicable):

Windows. It is an add on for Microsoft Excel. Will work on Microsoft Office for Macs.

Description:

It is an add on for Microsoft excel that contains all the thermodynamic properties of common fluids. It is used to show how refrigeration and hvac systems will react to changing conditions.

Advantages:

1.      It has a lot of data.

2.      Once the model is set up, it is easy to see how different factors such as ambient temperature will affect the system.

Disadvantages or Challenges:

1.      It is only for excel, so it really is for corporate users.

2.      Can be a little difficult to learn at the beginning, especially if the students' excel knowledge is basic. The teacher may spend more time teaching excel and the specific add on module than what it is being used for.

Level of Expertise Required (Instructor and students):

Needs a good understanding of excel.

Ease of Use:

There is a wizard to help new users, but it is a little clunky.

Learning Strategy:

This utilizies two strategies. The first is concrete examples, as the students will be using their computers to allow do the modeling. The second is interleaving as they are learning excel functions and thermodynamic principles.

Pedagogical function:

This is tool for an inquiry-based approach. The student can experiment with changing just one or two factors, such as ambient temperature, and see how the refrigeration system will react.

What Situation(s) is it Best Used For?:

It is used specifically in a corporate training situation of mechanical engineers.

Accessibility Concerns:

It is a visual tool.

Special Equipment Required:

Computer, tablet, or phone. Internet access.

Teaching/Training Resources Available:

https://pubs.acs.org/doi/10.1021/acs.iecr.2c01427 

https://draftlessig.org/what-is-nist-refprop/

https://cds.cern.ch/record/2637527/files/Report.pdf




References:

Huber, M., Lemmon, E., Bell, I., McLinden, M.(2022). The NIST REFPROP Database for Highly Accurate Properties of        Industrially Important Fluids. https://pubs.acs.org/doi/10.1021/acs.iecr.2c01427

Refprop Documentation, Release 10.0. (2018, May 21) National Institute of Standards and Technology. https://www.nist.gov/system/files/documents/2018/05/23/refprop10a.pdf