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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/2459
Title: Profitability analysis of power generation using waste heat of sponge iron process
Authors: Gaurav G.K.
Khanam, Shabina
Published in: Energy
Abstract: The present paper proposes two energy integration options, Option-1 and Option-2, to compare power generation and preheating scheme in sponge iron process. Option-1 accounts power generation whereas in Option-2 preheating of feed material, slinger coal and kiln air is considered. These options utilize heat of waste gas that exits the after burning chamber of the process, which is available from 994 °C to 250 °C. The process integration principles are applied to conserve energy in Option-1 and Option-2. For Option-1 8.97 MW power is generated using heat of waste gas, which gives payback period as 4.17 years. On the other hand, Option-2 consumes 37.4% and 4.7% less coal and water, respectively, in comparison to the existing system. The payback period for option-2 is 3.22 years. The feasibility analyses of these options are also discussed. Based on payback period preheating is more profitable option in comparison to power generation. However, when net profits of two options are compared, power generation option is more profitable. The results of the present study are compared well with that of published work. © 2017 Elsevier Ltd
Citation: Energy (2017), 141(): 333-347
URI: https://doi.org/10.1016/j.energy.2017.09.053
http://repository.iitr.ac.in/handle/123456789/2459
Issue Date: 2017
Publisher: Elsevier Ltd
Keywords: Economic analysis
Feasibility analysis
Power generation
Preheating
Sponge iron process
ISSN: 3605442
Author Scopus IDs: 57188582876
23025264900
Author Affiliations: Gaurav, G.K., Indian Institute of Technology RoorkeeUttarakhand Pin-247 667, India
Khanam, S., Indian Institute of Technology RoorkeeUttarakhand Pin-247 667, India
Corresponding Author: Gaurav, G.K.; Indian Institute of Technology RoorkeeIndia; email: gajendragaurav@gmail.com
Appears in Collections:Journal Publications [CH]

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