Performance Analyses of Telsa-valve Structured Meso-Combustors within Ammonia-Hydrogen/Air Combustion for Thermophotovoltaic Applications

Renewable Energy, Год журнала: 2025, Номер 243, С. 122546 - 122546

Опубликована: Янв. 31, 2025

Язык: Английский

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Hydrogen-powered micro thermophotovoltaic system with optimized multi-layers porous medium and operating conditions: Experimental and numerical studies

International Journal of Hydrogen Energy, Год журнала: 2025, Номер 105, С. 427 - 440

Опубликована: Янв. 24, 2025

Язык: Английский

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Enhanced heat transfer and flow resistance characteristics of high temperature flow regulating valves with Tesla cooling structure

Physics of Fluids, Год журнала: 2025, Номер 37(4)

Опубликована: Апрель 1, 2025

Cooling channels are typically integrated into high temperature flow regulating valves to mitigate the adverse effects of elevated temperatures on operation digital and embedded sensors. However, conventional straight cooling often suffer from inefficient heat dissipation excessive pressure losses. In this study, a novel valve incorporating 12 Tesla is proposed simultaneously optimize transfer enhancement resistance reduction. Three-dimensional steady-state numerical simulations, based Navier–Stokes equations (Laminar model), were conducted analyze pressure, temperature, Colburn factor (j), friction (f). The (j) was determined relationship between absorption, surface difference, area, mass velocity fluid, while (f) derived correlation inlet-outlet hydraulic diameter, fluid. Numerical results reveal that mixed capacity structure improves with increasing inlet pressure. Among schemes, Scheme 1 exhibited highest maximum 0.173, 5 demonstrated best performance lowest 1.357. Experimental validation confirmed close agreement experimental data results, discrepancies within 8.83% for j 6.39% f. Through analysis JF impactor factor, which evaluates combined flow, 11 achieved optimal overall performance, enhancing by up 28.7% reducing losses 17.9%. This study provides valuable insight design valve, their thermal management operational efficiency.

Язык: Английский

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Scaling up ethanol fueled step micro-combustor for higher power generation

Energy, Год журнала: 2025, Номер unknown, С. 136328 - 136328

Опубликована: Май 1, 2025

Язык: Английский

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Numerical analysis of radiative and energy conversion for ammonia/hydrogen-air premixed flame in a planar micro-combustor

Fuel, Год журнала: 2025, Номер 400, С. 135734 - 135734

Опубликована: Май 23, 2025

Язык: Английский

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Enhancing outer wall temperature uniformity in a micro-combustor for micro thermophotovoltaic system via four-corner tangential inlets injection

Fuel, Год журнала: 2025, Номер 401, С. 135849 - 135849

Опубликована: Июнь 2, 2025

Язык: Английский

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A Novel Fuel Reactor with a Return Valves Cascade for the Chemical Looping with Oxygen Uncoupling Process

Combustion Science and Technology, Год журнала: 2024, Номер unknown, С. 1 - 9

Опубликована: Сен. 15, 2024

Язык: Английский

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