In a shell and tube type exchanger the bladed type of structure may be provided in the tubes interiors, while {HEAD ~ a spherical type} of interrupter structure is provided in {TAIL ~ the shell} contacting the tube exteriors 
is provided in
In a shell and tube type exchanger the bladed type of structure may be provided in the tubes interiors , while { HEAD ~ a spherical type } of interrupter structure is provided in { TAIL ~ the shell } contacting the tube exteriors
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 HEAD OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH