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Published in:

Volume 7 Issue 3
March-2020
eISSN: 2349-5162

Unique Identifier

JETIR2003187

Page Number

1261-1268

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Title

Hydrodynamic Studies of Pressurized Fluidized Bed Gasifier of Conical Distributors

ISSN

2349-5162

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"Hydrodynamic Studies of Pressurized Fluidized Bed Gasifier of Conical Distributors", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.7, Issue 3, page no.1261-1268, March-2020, Available :http://www.jetir.org/papers/JETIR2003187.pdf

Abstract

Abstract This paper aims at measurement of hydrodynamic parameters of cold model of Pressurized Fluidized Bed Gasifier (PFBG) and develops hydrodynamic similarity with the existing hot model PFBG of an IGCC Power plant. In the present experimental work, pilot scale hot model data of PFBG of 168 TPD had been verified by constructing hydrodynamically similar cold model of 2/3rd scale semi-circular. Also pressure measurements at four different heights have been taken for recording pressure fluctuations. It is found that amplitude of pressure fluctuations is related to bubble size and reflect Bed hydrodynamics Experiments have been conducted using different distributor configurations with apex angles of 600 and 1200 .which were designed, fabricated and tested in a cold model and the optimised distributor configuration arrived. Experiments were conducted for different materials such as REFRACTORY (of mean particle sizes-0.8) and BOTTOM ASH (of mean particle size- 0.8mm) at different static bed heights (D, 1.5D, 2D) with distributors of apex angles: 600, and 1200. Trends in distributor pressure drop (Pd) and Bed pressure drop (Pbed) values in relation to superficial velocity (Uo) have been recorded and formatted into a graph of Pbed Vs Uo. Minimum fluidization velocities (Umf) for afore mentioned materials at respective static bed heights with each of two distributors, are then determined from related plots. It is found that Minimum fluidization velocities (Umf) are decreasing with increase in static bed heights (D, 1.5D, 2D) when the air flow was increasing from zero to maximum. The Umf values are found to be increasing with increase in distributor apex angle ( ) from 600 to 1200.

Key Words

Hydrodynamics, Fluidization, Integrated Gasification Combined Cycle (IGCC), Pressurized Fluidized Bed Gasifier (PFBG), Refractory, Bottom Ash, Distributors of Apex Angles.

Cite This Article

"Hydrodynamic Studies of Pressurized Fluidized Bed Gasifier of Conical Distributors", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.7, Issue 3, page no. pp1261-1268, March-2020, Available at : http://www.jetir.org/papers/JETIR2003187.pdf

Publication Details

Published Paper ID: JETIR2003187
Registration ID: 229996
Published In: Volume 7 | Issue 3 | Year March-2020
DOI (Digital Object Identifier):
Page No: 1261-1268
ISSN Number: 2349-5162

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Cite This Article

"Hydrodynamic Studies of Pressurized Fluidized Bed Gasifier of Conical Distributors", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.7, Issue 3, page no. pp1261-1268, March-2020, Available at : http://www.jetir.org/papers/JETIR2003187.pdf




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