Different techniques have been used to achieve a high heat transfer rate. Among them, one of the advanced is suspension nanoparticles in base fluids as water and coated with aluminum titanium. The present work has carried out on double pipe exchanger twisted tape insert twist ratio (y/w = 4 6) thickness (0.8mm) for investigation nanofluid counter flow arrangement under turbulent conditions. com...

Research in convective heat transfer using suspensions of nanometer-sized solid particles in base liquids started only over the past decade. Recent investigations on nanofluids, as such suspensions are often called, indicate that the suspended nanoparticles markedly change the transport properties and heat transfer characteristics of the suspension. This second part of the review covers fluid f...

This paper presents an optimisation model for the synthesis of heat exchanger networks (HEN) including the detailed design of the equipments formulated as a decomposition method. Shell and tube pressure drops and fouling are considered, as well as mechanical aspects, like shell and tube bundle diameters, internal and external diameter of tubes, number of tubes, number of baffles, number of shel...

The objective of the present work is to study influence copper nanoparticle concentration on heat transfer performance a mixed base fluid. In study, nanoparticles in ethylene glycol (eg) + propylene (pg) water (W) fluid was analyzed chevron- type plate exchanger. sol-gel method used prepare (100 nm), dispersed two different fluids volume fractions 5%EG 5%PG 90%W and 15%EG 80%W. Experiments were...

Nanofluids, stabilized suspensions of nanoparticles typically < 100 nm in conventional fluids, are evolving as potential enhanced heat transfer fluids due to their better thermal conductivity, increase in single phase heat transfer coefficient and significant increase in critical boiling heat flux. In the present paper, we investigate the overall thermal resistance of a closed two-phase thermos...

Plate Heat Exchanger (PHE) and Shell Tube (STHE) with identical heat transfer areas material characteristics are proposed a comparative thermal economic analysis is carried out on both exchangers. Ag-water nanofluid used at low concentrations (0, 2.5, 5, 10 mg/L), flow rates (2, 8 L/min), inlet temperatures (36, 46, 56 °C) as hot the coefficient (U), electrical power consumption of pump, costs ...

Nanofluids are suspensions of nanoparticles in base fluids, a new challenge for thermal sciences provided by nanotechnology. Nanofluids have unique features different from conventional solid-liquid mixtures in which mm or μm sized particles of metals and non-metals are dispersed. Due to their excellent characteristics, nanofluids find wide applications in enhancing heat transfer. Research work ...