The circulating pump 72 is crucial to the operation of the heat exchanger 10, as without the pump 72 forcing liquid through the shell 12, only convection would force {HEAD ~ the liquid} through {TAIL ~ the shell} 12 and flow would be substantially stagnant 
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The circulating pump 72 is crucial to the operation of the heat exchanger 10 , as without the pump 72 forcing liquid through the shell 12 , only convection would force { HEAD ~ the liquid } through { TAIL ~ the shell } 12 and flow would be substantially stagnant
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH