Review of Heat Transfer Enhancement in Shell and Tube Heat Exchangers: Innovations and Applications (KEY IJP************076)

• Sunil Kumar Shah,Vineet Kumar Dwivedi

Abstract

Shell and tube heat exchangers (STHEs) play a critical role in industrial processes by facilitating efficient heat transfer between fluids. This review explores key advancements and strategies aimed at enhancing heat transfer within STHEs. The discussion covers various types of STHEs including fixed tube sheet, floating head, U-tube, and kettle reboilers, each tailored to specific operational requirements. Inserts such as twisted tapes, helical coils, and wire coils are examined for their ability to promote turbulence and improve convective heat transfer without excessive pressure drop. Nanofluids, incorporating nanoparticles like metals and oxides into base fluids, demonstrate significant potential for enhancing thermal conductivity and heat transfer efficiency, though challenges such as stability and cost-effectiveness persist. Baffle plates, including segmental, rod, disc, and orifice baffles, are highlighted for their role in inducing turbulence and optimizing fluid mixing within STHEs. The abstract underscores ongoing research efforts aimed at advancing heat exchanger technology through innovative designs and computational modeling, aiming to achieve higher energy efficiency and sustainability across diverse industrial applications.