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Please use this identifier to cite or link to this item: http://hdl.handle.net/2080/1462

Title: Evaluation of Flow Characteristics of Fly Ash Slurry at 40% Solid Concentration with and without an Additive
Authors: Naik, H K
Mishra, M K
Rao, K U M
Keywords: Rheology
fly ash
shear stress
shear rate
Issue Date: May-2011
Citation: World of Coal Ash (WOCA) conference, May 9-12th, 2011, Denver Co, USA
Abstract: In India, about 75% of total electrical energy is generated from thermal power plants which in turn release about 130 million tones of fly ash as solid waste annually. Transportation and disposal of such a huge amount of fly ash is a major problem faced by the power plants. Presently fly ash is being transported as lean slurry in pipe lines requiring about 80 to 85% of water with more energy input. The objective of the present study was to evaluate the rheological characteristics of fly ash slurry with and without an additive at varying temperature environment to facilitate smooth flow of materials in the pipeline. To achieve the objectives, six number of fly ash slurry samples were prepared from the fly ash obtained from a power station situated in the southern part of India. The main constituents of the slurry were fly ash, water, a cationic surfactant and a counter-ion. Detailed rheological properties were determined using a cylindrical co-axial rotational rheometer at shear rates v...
Description: Copyright belongs to proceeding publisher
URI: http://hdl.handle.net/2080/1462
Appears in Collections:Conference Papers

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