The implications and challenges of enhanced heat transfer for the chemicalprocess industries

This paper considers the many techniques that have been developed to enhanc e convective heat transfer, with the emphasis on heat exchangers found in t he chemical process industries. A summary is given of the techniques that a re effective for the various modes of heat transfer. Of particular interest currently is compound enhancement that involves the simultaneous applicati on of several techniques, so as to produce an enhancement that is larger th an the individual techniques operating separately. There are many experimen tal and analytical challenges that relate to obtaining and applying data. T he current advanced enhancement represents third generation heat transfer t echnology. This technology will find increasing application in all industri es.