METHODS FOR CALCULATING SHELL-SIDE CONDENSATION HEAT TRANSFER AND PRESSURE DROP OF RODBAFFLE CONDENSER

摘要

1 INTRODUCTIONGentry,Yong and Small [1-3]have described their Rodbaffle heat exchangers,whichare geometrically shell-and-tube exchangers consisting of a series of shell-side bafflesas an array of supporting rods.The supporting-rod matrix creates an unobstructedflow path and makes the flow field in the shell-side of the heat exchangerpredominantly longitudinal bringing along flow-induced tube vibration in a cross flowheat-exchanger.With neither bundle cross flow form drag nor repeated flow reversal ef-fects being present,the shell-side pressure losses in Rodbaffle heat exchangers are low.Rodbaffle heat exchangers also offer an enhanced thermal performance.Stagnant