The evolution of {HEAD ~ the waste heat boiler portion} of {TAIL ~ the cycle} on the enthalpy entropy diagram of FIG 2 may be described as follows 
of
The evolution of { HEAD ~ the waste heat boiler portion } of { TAIL ~ the cycle } on the enthalpy entropy diagram of FIG 2 may be described as follows
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH