The problem under investigation contains a computational simulation of a specific heat exchanger with complex geometry fins. The problem solved is potentially interesting for researchers and engineers working on solar collectors and aerospace industry. It is known that heat transfer enhancement can be achieved by creating longitudinal vortices in the flow. These vortices can be generated by arc...

Strengthening the thermal response of Phase-Change Materials (PCMs) is an essential and active field research with promising potential for advanced applications such as solar energy storage, building conservation, management in electronic devices. This article evaluates efficacy a new arc-shaped fin array shell-and-tube heat storage systems to enhance PCM during discharge mode. Different geomet...

Latent heat thermal energy storage (LHTES) technology can alleviate the mismatch between supply and demand of solar industrial waste heat, but low conductivity phase change materials (PCMs) is an issue that needs to be solved. In this work, effects bifurcated fins on melting solidification are studied, local global entropy generation discussed. The radial lag time circumferential were defined e...

Calculation of fin efficiency is necessary for the design heat exchangers. This can be calculated individual finned tubes or continuous fins. Continuous fins are mostly used in plate-fin and tube exchangers (PFTHEs). In most cases, basic elements those PFTHEs circular, oval flattened pipes, which contain circular polygonal fins, as observed PFTHEs, divided into virtual Those have a rectangular ...

numerical study of double-diffusive natural convective heat transfer in a curved cavity filledwith a porous medium has been carried out in the current study. polar system has beenselected as coordinate system. as a result, all equations have been discredited in r and θdirections. brinkmann extended darcy model has been utilized to express fluid flow inporous matrix in the enclosure. smaller and...

Labriform locomotion, which is powered by oscillating the paired pectoral fins, varies along a continuum from rowing the fins back and forth to flapping the fins up and down. It has generally been assumed (i) that flapping is more mechanically efficient than rowing, a hypothesis confirmed by a recent simulation experiment, and (ii) that flapping should be associated with wing-shaped fins while ...

Star-shaped fins are a newer type of fin for which correlations heat transfer and pressure drop do not yet exist in the literature. Therefore, correlation equations air-side finned exchanger with star-shaped stainless-steel staggered arrangement were developed this work. To obtain these correlations, numerical analysis basic geometry another 21 variants was performed using computational fluid d...