Add process subclasses related to storage objects

[l-emele]

Additionally, to distinguish between the storage objects in Issue#1261, I would like to introduce the following classes:

• adsorption with the parent class process:

  •  Adsorption is a process that lead to an accumulation of a substance within a phase or at an interface between two phases.
    

• desorption with the parent class process:

  •  Desorption is a process that lead to a detaching of a substance that was accumulated within a phase or at an interface between two phases (for example by adsorption).
    

• phase transitions with the parent class process:

  •  A phase transition is a transformation of a medium from a solid, liquid, or gas state to a different state.
    

• evaporating with the parent class phase transitions:

  •  Evaporating is a phase transition from a liquid medium to their gaseous state.
    

• melting with the parent class phase transitions:

  •  Melting is a phase transition from a solid medium to their liquid state.
    

Originally posted by @Alex2448 in https://github.com/OpenEnergyPlatform/ontology/issues/1262#issuecomment-1249531381

[l-emele]

I basically agree to those definition proposals. Minor adjustment: ... is a process that leads...

I am thinking about how to axiomatise these processes.

The suggest the following axioms:

• 'evaporating' ('has physical input' some 'portion of matter' 'has state of matter' value liquid) and ('has physical output' some 'state of matter' gaseous')
• 'melting' ('has physical input' some 'portion of matter' 'has state of matter' value solid) and ('has physical output' some 'state of matter' value gaseous')

However, these axioms do not yet reflect that it is the same type of matter. @OpenEnergyPlatform/oeo-general-expert-formal-ontology : Any ideas how to axiomatise that it is the same type of matter but only property changes?

[Alex2448]

@l-emele I want to implement the heat storages soon and I need these classes for that, so I propose to implement it as you suggested and open a new Issue for the discussion on how to reflect that it is the same type of matter. Is this fine for you?

[Alex2448]

The discussion on how to improve the axioms of melting and evaporating is continued in Issue#1364.