CFD-DEM modelling and simulation of pneumatic conveying: A review

The effects of the installation position of a multi-radial swirling air-curtain generator on dust diffusion and pollution rules in a fully-mechanized excavation face: A case study

The efficient storage of electricity generated from clean energy can help liberate human beings from the shackles of fossil fuel shortage. As the existing energy storage systems are becoming close to their theoretical energy limitation, the development of next-generation energy storage is of great necessity. Carbon materials are one of the most versatile materials that play a key role in different energy storage devices because their outstanding properties like high conductivity and porosity can fulfill various requirements of energy storage devices. Most high-performance carbon materials, however, are extracted from fossil fuel by energy-intensive synthetic methods. Here comes an urgent need to reduce the production cost of carbon materials while maintaining their properties. Biomass is a promising renewable precursor of functional carbon materials for the next-generation energy storage system, on account of its abundance, sustainability, intriguing microstructures and low cost. Various carbon materials have been engineered from natural and renewable biomass resources by suitable activation and surface modification processes. As a result, their specific surface area, pore size distribution, porosity, surface chemistry and morphology have been rationally tuned and tailored to boost their electrochemical performance. In this review, the most updated research progress in the synthesis of biomass-derived carbon material for developing high-performance supercapacitors, rechargeable batteries and fuel cells are critically reviewed and summarized. For their practicability, several challenges that remain to be addressed are analyzed, and a perspective to the future research on biomass-derived carbons for energy storage is also discussed.

The rational design of biomass-derived carbon materials towards next-generation energy storage: A review

Pattern characterization concerning spatial and temporal evolution of dust pollution associated with two typical ventilation methods at fully mechanized excavation faces in rock tunnels

Soybean biodiesel production using synergistic CaO/Ag nano catalyst: Process optimization, kinetic study, and economic evaluation

Computational investigation of particle flow characteristics in pressurised dense phase pneumatic conveying systems

Numerical simulation of ash particle deposition characteristics on the granular surface of a randomly packed granular filter

Simulation investigation of drying characteristics of wet filamentous biomass particles in a rotary kiln

Drying was significant and challenging for wet nonspherical biomass fuels in the pretreatment process. In the study, a series of researches were conducted to determine the drying characteristics of...

Experimental Research on the Drying Characteristics of Flexible Fibrous Biomass Fuels in the Baffled-Rotary Cylinder

The invention belongs to the technical field of multiphase flow measurement and especially relates to a measurement device and method for three-dimensional particle concentration information of a filamentous material in an entrained-flow bed rectangular lift pipe. The measurement device comprises an arc light source, a beam homogenizer, a lift pipe, a high speed CCD camera and an image postprocessing unit. The measurement method comprises the steps: firstly, shooting clear and stable filamentous particle flowing information in the 45-degree view field direction and binarizing pictures; then, respectively calculating light propagation direction concentrations of two divided areas and the particle concentration distribution relation in the lift pipe; then, simplifying a function of the particle concentration distribution in the lift pipe to obtain a second order accuracy binary Taylor expansion equation; finally, obtaining the function of the particle concentration distribution in the lift pipe through multiple regression. The measurement device and method disclosed by the invention achieve measurement of a single CCD camera on the filamentous particle concentration in the three-dimensional space, camera coupling synchronization is avoided, and deep scanning is avoided. The device has the advantages of reasonable design, easiness in operation, strong calculating theoretical property and quickness and convenience in data processing.

Measurement device and method for three-dimensional particle concentration information of filamentous material in entrained-flow bed rectangular lift pipe

Shanshan Sun

Papers

Computational investigation of particle flow characteristics in pressurised dense phase pneumatic conveying systems

Numerical simulation of ash particle deposition characteristics on the granular surface of a randomly packed granular filter

Simulation investigation of drying characteristics of wet filamentous biomass particles in a rotary kiln

Experimental Research on the Drying Characteristics of Flexible Fibrous Biomass Fuels in the Baffled-Rotary Cylinder

Measurement device and method for three-dimensional particle concentration information of filamentous material in entrained-flow bed rectangular lift pipe