Jet impingement cooling has been utilized to improve the performance of solar energy technologies such as collectors, PV systems, PVT and CPV systems. This article provides an overview current systems using jet impingement. The distinctions between each study, research results system design, are examined contrasted. summary demonstrates that collectors most widely technology owing their direct ...

The high pressure turbine nozzle guide vane of a modern aeroengine experiences large heat loads and thus requires both highly effective internal external cooling. This can be accomplished with double-wall effusion cooling, which combines impingement, pin-fin combination three cooling mechanisms causes losses, increasing potential for the migration coolant towards low regions, subsequently starv...

Multiple gas jet impingement cooling for quenching is a very promising approach for increasing the heat transfer coefficients (h) and thus the overall cooling rates in the gas-quenching process. Appropriate correlations for h were selected based on an extensive critical literature review, and used in a numerical heat conduction model and a numerical phase transformation model which were develop...

With the aim of exploring particle transport and deposition characteristics in internal cooling channel turbine blades, computational fluid dynamics-discrete element method is used to implement numerical simulation impingement-film passage. First, unsteady development process with increase injection mass obtained. Then, effect jets Reynolds number, Stokes initial volume fraction on presented. F...

The helium-cooled modular divertor concept with integrated pin array developed by the Karlsruhe Research Center (FZK) is unusual among helium-cooled tungsten divertor designs in that it relies upon an array of pin fins on the back of the cooled surface, instead of jet impingement, to cool the plasma-facing surface. The Georgia Tech group experimentally studied a similar design constructed of br...

Evaluation of Temperature-Time Profiles by the Lumped Thermal Mass analysis method for bottom surface jet impingement cooling system was carried out. This done controlled accelerated using a modified run-out table (ROT). The evaluation with variant pipe diameters 10mm - 40mm single water jet, having gaps in range 55mm 95mm and sub-cooled to 150oC – 110oC. results revealed that rate faster at an...

We aim to study the behavior of polymer crystallization during cooling stage in injection molding more accurately, the multiscale model and multiscale algorithm proposed in our previous work Ruan et al., 2012 have been extended to the 3D polymer crystallization case. Our multiscale model incorporates two distinct length scales: a coarse grid for the heat diffusion and a fine grid for the crysta...