Abstract The manufacturing process and mechanical instability of high performance magnetocaloric materials hamper the implementation novel geometries for active magnetic regenerators. In this work, La(Fe,Si,Mn)13Hy is shaped into a regenerator with triangular microchannels hydraulic diameter 200–300 μm using that results in highly stable structure. characterized regards to heat transfer, resist...

We demonstrate a hybrid time-domain chirp switch (TDCS) in which the nonlinear chirper is an AlGaAs waveguide and the soliton dispersive delay line is a polarization-maintaining fiber. The hybrid TDCS can restore timing in a switching or transmission system, and when combined with an optical amplifier, it can act as an ultrafast, all-optical regenerator for soliton pulses. The timing restoratio...

The paper is concerned with the thermodynamic analysis of a multi-stream heat exchanger system for Allam cycle and development regenerator flow chart. procedure are described in detail. constructed five double-flow exchangers has 2.5% lower power than ideal exchanging system. Besides, subsequent interaction principle transfer maximal amount proposed: it necessary to begin cooling heating flows ...

Abstract We apply a robust steady state optimization method for stiff delay differential equations to the economic of fluidized catalytic cracking unit. Stiff systems appear in this case due different time scales gas and fluid phase. Delays result from catalyst hold-ups standpipes connecting riser regenerator. show that proposed can cope with stiffness delays. Moreover, is capable simultaneousl...