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The heat transfer mechanism study of three-tank latent heat storage system ba...
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  A three-tank latent heat storage system in which liquid lead–bismuth eutectic alloy (LBE) is used as sen-sible heat storage medium, and sodium nitrate is selected as the phase change material (PCM), is proposed in the present work. The performance of thermal storage system depends chiefly upon the heat transfe...
Numerical investigation of room temperature magnetic refrigerator using micro...
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  The paper reports numerical investigation of room temperature, active magnetocaloric regeneration (AMR)refrigerators/heat pumps using microchannel regenerator. The microchannel regenerators are made of a magnetocaloric material (MCM), Gd, with diameter of the circular channels ranging from 0.7 mm to 2.0 mm. Wat...
Mathematical modeling and thermal-hydrodynamic analysis of vertical water wal...
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  In this study, a mathematical model for a 660MW SCFB boiler design with annular furnace was deduced and thermal–hydrodynamic analysis was performed to improve the design and operation of water wall. Based on the water wall structure and heat flux distribution of the SCFB boiler, the connection style, pressure ...
Experimental and numerical studies of pressure effects on syngas combustor em...
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  Pressure effects on NOx and CO emissions of a model syngas combustor were experimentally and numerically studied. The validated numerical method was employed to analyze pressure effects on the combustor emissions such as different mixing levels and extra reactant addition. The model combustor, fueled with 10 MJ...
Thermodynamic comparison and efficiency enhancement mechanism of coal to alte...
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  Coal to alternative fuels is an important path to enforce energy security and to provide clean energy. In this paper, we use exergy analysis and energy utilization diagram (EUD) methods to disclose the internal reasons for performance differences in typical coal to alternative fuel processes. ASPEN plus softwar...
Experimental study on the melting and solidification behavior of erythritol i...
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  An experimental study on a vertical shell-and-tube latent heat thermal storage unit with erythritol as storage media and air as heat transfer fluid (HTF) is conducted to evaluate the thermal behavior and heat transfer performance of the unit. The thermophysical properties of erythritol, such as melting temperat...
Thermodynamic performance of a mid-temperature solar fuel system for cooling,...
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  Solar thermal fuel is a promising approach of solar energy utilization, in which concentrating solar energy can drive the hydrocarbon fuel decomposition or steam reforming to produce hydrogen or syngas for generating power through heat engine. In the present, most of solar thermal fuel processes have employed s...
Effects of wall temperature on slagging and ash deposition of Zhundong
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  Zhundong coal with a large reserve is faced severe ash-related problems including slagging and fouling during pulverized-coal boiler combustion. The gasification in circulating fluidized bed is a good way to use Zhundong coal due to the low reaction temperature, while it is unknown for the slagging and ash depo...
Experimental investigation on flow characteristics in open rectangular microg...
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  In this paper, flow characteristics in open rectangular microgrooves were investigated by micro-PIV. Liquid cross-sectional areas and central thickness of the liquid film of the meniscus along the axial direction of the microgroove were both studied. The results show that there is a ‘dead zone’ near the end o...
Investigations of leakage mechanisms and its influences on a micro swing engi...
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  Considering rarefaction effects, this paper investigated mechanisms of the clearance leakage and its influences on a micro swing engine for the micro power generation by employing three different flow models named as discrete velocity direction (DVD) model, Navier-Stokes equations with slip boundary conditions ...
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