Oliur Rahman

Numerical investigation of heat transfer performance in a segmentally baffled shell-and-tube heat exchanger using Di- and tri-hybrid nanofluids: a comparative analysis of round and twisted tube arrangements

The growing global energy demand requires compact heat exchangers with high thermal performance and low pumping-power requirements. Shell-and-tube heat exchangers (STHXs) are widely used in industrial thermal systems, while baffles, twisted tubes, and hybrid nanofluids (HNFs) are...

Thermo-hydraulic performance improvement of a shell-and-tube heat exchanger using perforated double-segmental baffles: A comparative CFD investigation

This study numerically investigates the thermo-hydraulic performance of a shell-and-tube heat exchanger (STHX) with three different baffle arrangements: conventional single-segmental (CSS), perforated double-segmental (PDS), and modified geometric baffle (MGB). Three-dimensional,...