Heat transfer phenomena on waste heat recovery of combustion stack gas with deionized water in helical coiled heat exchanger

Theoretical and experimental studies on waste heat recovery of combustion stack gas and heat transfer phenomena of a fully developed laminar flow of deionized water in vertical helical coils were carried out with coil dimensions: tube diameter to coil diameter, di/D=0.04-0.06 and pitch to coil diameter, p/D=0.1-0.25. The calculation of heat transfer data was based…

Heat transfer characteristics of deionized water-based graphene nanofluids in helical coiled heat exchanger for waste heat recovery of combustion stack gas

Heat transfer phenomena of a fully developed laminar flow of deionized water-based graphene nanofluids (DI-water/GNPs) in vertical helical coils for heat recovery of combustion stack gas was carried out with different helical coil dimensions. The GNPs particle concentrations were 0.05 and 0.08% by weight and the calculation of experimental heat transfer data was based on…