{HEAD ~ A method} is provided to control {TAIL ~ an energy recovery system} to achieve an increase of the statistical average system recovery efficiency 
is provided to control
{ HEAD ~ A method } is provided to control { TAIL ~ an energy recovery system } to achieve an increase of the statistical average system recovery efficiency
HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH