OPTIMIZATION OF THERMAL ENERGY CONSUMPTION IN CEMENT PLANT

Authors

1 Research Scholar, Department of Mechanical Engineering ,Sri SatyaSai University of Technology and Medical Sciences, Sehore Bhopal-Indore Road, Madhya Pradesh, India

2 Research Guide, Department of Mechanical Engineering ,Sri SatyaSai University of Technology and Medical Sciences, Sehore Bhopal-Indore Road, Madhya Pradesh, India

Abstract

This study centers on breaking down the waste heat produced by the cooling of a high-temperature gas profluent from a rotating kiln in a Koderma cement plant. The point is to decide its true capacity for either drying wet natural substance (limestone) or creating power utilizing a Natural Rankine Cycle (ORC). Aspen in addition to V.10 programming is used to perform material, energy, and exergy balances for consistent state conditions. The investigation incorporates an exergo-financial assessment in view of the net present worth (NPV) of the speculation. A responsiveness examination is led by changing the power source temperatures of the hot gases and taking into account different working liquids for the ORC. The outcomes uncover that the most ideal choice is to produce power involving an ORC with Cyclo-Pentane as the functioning liquid. This option accomplishes a greatest power result of 3.77 MW, with a warm productivity of 15.96% and an exergy proficiency of 37.52%. The relating NPV is 0.37 MUSD under economic situations of power and fuel costs. Then again, none of the drying units analyzed in the review yield a positive NPV and are thusly not monetarily reasonable. Be that as it may, the most noteworthy dampness decrease in the solids stream is accomplished when the gases are cooled to a temperature of 120 °C, with a decrease of 5.67%. The chance of incorporating a drying unit following the ORC to additional cool down the gases is likewise examined. In any case, no huge improvement is noticed contrasted with utilizing the ORC alone. At long last, the review investigates the consideration of an inside heat exchanger to upgrade the presentation of the ORC. The recovered cycle setup outflanks the basic ORC, conveying an organization result of 4.1 MW, NPV of 0.42 MUSD, a pace of return of 15.58%, and a recompense season of 6.07 years. This addresses a 8.75% expansion in work yield and 13.51% better financial execution contrasted with the basic ORC setup.

Keywords

Int. J. of Aquatic Science
Volume 12, Issue 2 - Serial Number 2
June 2021
Pages 5669-5678

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