Numerical simulation of sand–water slurry flow through pipe bend using CFD

S Dixit, S Kumar, AR Pradhan, S Kumar… - International Journal on …, 2023 - Springer
Hydrotransport of industrial powders and bulk materials such as minerals, mineral tailings,
coal, ash, and sand is regarded as an efficient means of transportation. Pipelines ranging in …

A machine learning approach to improve ignition properties of high-ash Indian coals by solvent extraction and coal blending

S Mittal, S Pathak, H Dhawan… - Chemical Engineering …, 2021 - Elsevier
Indian coals are of poor quality, having high ash content and lower calorific value as
compared to foreign coal reserves. To circumvent the problems of high ash content and low …

Research on the slurrying performance of coal and alkali-modified sludge

R Chu, Y Li, X Meng, L Fan, G Wu, X Li, X Jiang, S Yu… - Fuel, 2021 - Elsevier
This study investigated the mechanism of modified sludge coal water slurry (MSCWS).
Oxygen-containing functional groups in the sludge formed polar bonds with water, which …

Improving the slurryability of high ash coal by blending anthracite of different particle size range

A Pandey, D Hansdah, S Kumar - International Journal of Coal …, 2024 - Taylor & Francis
Hydraulic transportation of lignite and high ash coal (HAC) is economically unviable due to
their poor slurryability and stability. The study suggests and shows how the proper selection …

Improving rheology, slurryability and stability of iron ore suspension employing variances in size distribution

C Gupta, S Kumar - Arabian Journal for Science and Engineering, 2024 - Springer
The present study demonstrates a comprehensive characterisation of an Indian iron ore
sample to investigate the effect of blending coarse particles with fine particulate slurry on the …

Flow modelling and energy consumption of a hydrotransportation system possessing variable flow boundaries

AR Pradhan, S Kumar, H Singh, G Singh… - … Research and Design, 2022 - Elsevier
The design and choice of pipe fittings in such systems plays an important role as far as
headloss and flow separation are factors of concern. This study aims to investigate the flow …

Modeling of solid-liquid flow inside conical diverging sections using computational fluid dynamics approach

H Singh, S Kumar, SK Mohapatra - International Journal of Mechanical …, 2020 - Elsevier
In a slurry pipeline, the diverging sections are an important pipe fitting and also a cause of
major pressure loss and sometimes flow separation. To address this potential issue, the …

Flow characteristics of microwave treated Indian coal: A deep learning modelling

H Singh, S Kumar, R Mishra, SK Mohapatra… - Advanced Powder …, 2023 - Elsevier
To meet the escalating energy needs of the growing population, the power stations are
gradually shifting towards abundant low-quality coals and lignites. This study proposes a …

Experimental investigation on effects of solid concentration, chemical additives, and shear rate on the rheological properties of bottom ash (BA) slurry

KP Singh, A Kumar, DR Kaushal - International Journal of Coal …, 2022 - Taylor & Francis
An experimental analysis is done for understanding the effect of various parameters like
shear rate, solid concentration, and particle size on rheological behavior of bottom ash …

Design and modelling of a self-dispersing twisted pipe to mitigate settling in coal water suspension

H Singh, S Kumar, SK Mohapatra - Advanced Powder Technology, 2021 - Elsevier
The hydrotransport of the industrial powders and bulk solids such as minerals, mineral
tailings, coal and ash is considered to be an efficient mode of transportation. The pipelines …