300 PRINT : INPUT " CONTINUE(Y/N)?";N$: IF N$ = "Y" THEN 11
310 PRINT : PRINT : PRINT "******* BYE *********
320 END
600 TEXT : HOME : VTAB 5: HTAB 15: PRINT "THERMOSYPHON": PRINT
610 PRINT "THIS PROGRAM IS A SIMULATION OF REFLUX": PRINT "IN A CLOSED SYSTEM. IT CALCULATES THE": PRINT "MASS TRANSFER IN GRAM/HR OF MATERIAL OR": PRINT "GAL/HR OF CONDENSATE."
620 PRINT "CIRCULATION IS SOLELY BASED ON THERMAL": PRINT "FORCE AND NO PUMPS ETC ARE INCLUDED": PRINT : PRINT "THE EXAMPLE CONSTANTS ARE FOR A DOW-": PRINT "THERM SYSTEM (MW=166, SPEC.GRAV.=.84)": PRINT "USING AVG FRICTION FACTORS FOR PIPES."
630 PRINT "EQUIVALENT LENGTHS OF PIPES DENOTES": PRINT "ACTUAL LENGTH PLUS EQUIVALENT LENGTHS": PRINT "FOR ELLBOWS, VALVES, ETC.": PRINT : PRINT "ALL UNITS ARE IN METERS"
640 PRINT : INPUT "PRESS RETURN TO CONT.>>";N$: RETURN
800 RESTORE : CALL -936: PRINT
810 PRINT : FOR N = 1 TO 10: READ A$(N): PRINT " ";N;" ";A$(N);: HTAB 28: PRINT I(N): NEXT : RETURN