REVIEW ON HEAT TRANSFER ENHANCEMENT IN HELICAL TUBE HEAT EXCHANGER

Abstract

Various heat transfer enhancement techniques are using at present in industries. This paper focus on various enhancement techniques in heat exchangers. These techniques may be active or passive. Some common methods are to make pipe helical, insertion of baffles, attachments of fins and use of nanofluids etc. after reviewing various techniques it can be concluded that helical pipe is always advantageous than straight pipe. Now further research can be done if this helical pipe could be modified.