A total gas stream is subjected to {HEAD ~ initial sensible cooling} along a moisture impervious surface of {TAIL ~ a heat exchange element} 
A total gas stream is subjected to { HEAD ~ initial sensible cooling } along a moisture impervious surface of { TAIL ~ a heat exchange element }
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL