Multilevel Flow Modeling

MFM hierarchically decomposes the function of a system along the means-end and whole-part dimensions in relation to intended actions.

[2] MFM describes the function of a system as a means for a specific end in terms of mass and energy flow.

The concepts of transport and barrier play the most important role, as they connect pairs of the other function types, reflecting the physical flows in the system.

Accordingly, valid MFM syntax requires a transport or a barrier linking two functions of the remaining four types.

[4] The MFM diagram of a heat pump reflects the overarching objective (cob2) of maintaining the energy level on the warm side constant.

MFM concepts for functions and relations [ 1 ]
Flow sheet of a heat pump with temperature and flow controllers, described by [ 1 ]
MFM model of a heat pump with temperature and flow controllers, based on [ 1 ]