Experimental investigation of heat transfer and pressure drop of alumina–water nano-fluid in a porous miniature heat sink

Efficiency and effectiveness enhancement of an intercooler of two‐stage air compressor by low‐cost Al2O3/water nanofluids

“…Percentage volume concentration of Al 2 O 3 /water nanofluid was determined with reference to their individual specific weights as mentioned in Equation (1). Physical properties such as specific heat capacity (Cp nf ), effective thermal conductivity (K eff ), effective density (ρ eff ), and effective thermal diffusivity (α nf ) of Al 2 O 3 /water nanofluid were computed by well-known Equations ( 2) to (6) as follows:…”

“…Technologies to enhance the heat transfer capacity of heat exchangers have matured with employment of conventional heat transfer fluids or thermal oils. However, low thermal conductivity of these conventional fluids is a major bottleneck for developing energy‐efficient and high‐performance heat exchangers 1 . Recent developments in the field of nanotechnology has enabled the production of nonmetallic, metallic, or oxides particles of nanometer dimensions in an easy manner 2 .…”

“…However, low thermal conductivity of these conventional fluids is a major bottleneck for developing energy-efficient and high-performance heat exchangers. 1 Recent developments in the field of nanotechnology has enabled the production of nonmetallic, metallic, or oxides particles of nanometer dimensions in an easy manner. 2 Nanomaterials have interesting mechanical, thermal, electrical, and optical characteristics and these can be suitably employed for different engineering applications.…”

Effect of Porous Media on The Performance Characteristics of a Concentric Vertical Annular Tube

“…The performance factor (σ) criterion is used as an improvement heat transfer for most passive techniques. It's computed as the ratio between the improvements of heat transfer to pressure drop [18,19]…”

Pressure Drop of Partially Blocked Hagen-Poiseuille Flow using CFD Simulation

“…They divided the wake region into separation region, reattachment point, recovery region and fully recovered region as shown in Figure 1. The experiment on pressure drop due to porous blockages was conducted by Anuar et al [17], Swanson et al [18] and Pourfarzad et al [19]. Meanwhile, Cha [20] and Aly et al [21] studied the pressure drop of a circular pipe due to different fractal-shaped orifices and they found that such specially designed orifices will reduce the pressure drop.…”