Affiliation:
1. Department of Mechanical Engineering, Annamalai University Faculty of Engineering and Technology, Chidambaram, India
2. Department of Mechanical Engineering, R.V.R and J.C College of Engineering, Guntur, India
Abstract
The present study aims to identify the optimal process parameters to maximize the Overall Heat Transfer Coefficient for preparation of coal-water slurry used for gasifier in power plants. For this purpose, a jacketed vessel is designed with radial flow (rushton) and axial flow (propeller) impellers to prepare the coal-water slurry. Experiments have been conducted using L9 orthogonal array for Impeller speed (N), ratio of clearance height with diameter of tank (C/T) and ratio of slurry height with tank diameter (Z/T) parameters at three different levels for designed jacketed vessel. The best ranking is arranged in ascending order for propeller Z/T ratio, impeller speed and C/T ratio, for rushton impeller speed, Z/T ratio and C/T ratio. Statistical analysis reveals the percentage contribution of parameters for maximize of heat transfer coefficient in descending order in propeller Z/T ratio (64%), impeller speed (34.92%) and C/T ratio (1.07%), for rushton impeller speed (60.08%), Z/T ratio (36.86%) and C/T ratio (2.48%).
Funder
R.V.R & J.C College of Engineering-Guntur
Design Tribe India Private Limited-Hyderabad
Subject
Mechanical Engineering,Energy Engineering and Power Technology