IDAES Constants Module

Developers should be aware of the IDAES Constant module: https://github.com/IDAES/idaes-pse/blob/main/idaes/core/util/constants.py.

This module contains definitions of a number of common thermophysical constants with attached SI units (all with reference sources and typically to 9 significant figures where available). These definitions should be used in all IDAES models and tools where required and can be converted to different systems of units using Pyomo's Units Container.

Developers are welcome to propose new additions to the Constants module, although new additions should be sufficiently general and not limited to specific applications. New additions should come with a reliable reference source and as many significant figures as possible.