Numerical study of mixing index in offset inlets 3-D T mixer with bend shape mixing channel

The objective of this paper is the computational analysis on the mixing index of simple T shape mixer, offset inlets T shape mixer, and offset inlets T mixer with bend shape mixing channel by CFD simulation. Computational fluid dynamics software package solves conservation of mass equation, conservation of momentum equation, and conservation of energy equation. In the case of offset inlets T shape mixer, as the aspect ratio (height to width ratio) of mixing channel increased so mixing quality also increased and offset inlets T mixer with bend shape is a combination of increased aspect ratio as well as chaotic advection mechanisms, so it provides advanced mixing index than offset inlets T shape mixer and simple T shape mixer. Pressure fall in offset inlets T shape mixer is excess than simple T shape mixer but narrowly degraded than offset inlets T mixer with bend shape. Chaotic advection rooted microchannel generates secondary flow because of which motives a high-pressure drop in the microchannel.

KINETIC PARAMETERS OF THERMOLUMINESCENCE BASED ON ISOTHERMAL DECAY CURVES

The majority of the current techniques for getting the recurrence factors utilize the snare profundity making a few suppositions about the request for the energy. This causes irregularities in the announced benefits of catching boundaries due that the estimations of the actuation energy got by various techniques contrast obviously among them. At that point, it is important to utilize a technique autonomous of the snare profundity utilizing the isothermal iridescence rot (ILD) method. The catching boundaries related with the unmistakable shine pinnacle of BeO (280°C) are accounted for using ILD strategy. As a check, the snare boundaries are additionally determined by sparkle bend shape strategy subsequent to disconnecting the conspicuous shine top by warm cleaning procedure. Our outcomes show an awesome arrangement between the catching boundaries determined by the two techniques. ILD strategy was utilized for deciding the catching boundaries of BeO. Results got applying this technique are in acceptable concurrence with those acquired utilizing different strategies, besides in the estimation of the recurrence factor.

An Erosion Resistant Pipe Bend

A new 90-deg bend shape has been developed for erosion resistance. The design consists of a gradually expanding inlet, a large-diameter curved section, and a gradually contracting outlet. Tests were conducted using alumina particles in air at an average velocity of 27 m/s, passing through a carbon steel bend. The new bend design had an erosion life exceeding 4000 hr, compared to 38 hr for a conventional bend design.