Article: Energetic and exergetic assessments of a cement clinker cooler integrated poly-generation plant Journal: International Journal of Exergy (IJEX) 2025 Vol.47 No.3 pp.179 - 195 Abstract: This study proposes a novel cooling method for white cement clinkers, using nitrogen and carbon dioxide as alternatives to conventional water cooling. The use of nitrogen enables recycling, while hot nitrogen can serve additional purposes, addressing water wastage in the clinker cooling process. Carbon dioxide's potential in cooling clinkers at 1,400–1,450°C is also evaluated. This approach aims to improve sustainability and resource efficiency in white cement manufacturing by reducing water consumption and introducing reusable cooling agents. The result shows that Wgrid increases from 386.316 kW to 1,444.651 kW, Qcooling rises from 585.4398 kW to 2189.2882 kW, and hydrogen production improves from 0.002723 kg/s to 0.101765 kg/s as CO2 inlet temperature increases from 150°C to 300°C. The proposed system offers a viable solution for addressing the environmental challenges of traditional white cement clinker cooling. Inderscience Publishers - linking academia, business and industry through research

Title: Energetic and exergetic assessments of a cement clinker cooler integrated poly-generation plant

Authors: Faizan Khalid; Mohd Parvez; Shiv Lal; Osama Khan; Mohammad Uzair

Addresses: Centre for Integrated Green and Renewable Energy, Zakir Hussain College of Engineering and Technology, Aligarh Muslim University, Aligarh, India ' Department of Mechanical Engineering, Al-Falah University, Faridabad, Haryana, India ' Department of Mechanical Engineering, Rajasthan Technical University, Kota, India ' Department of Mechanical Engineering, Jamia Millia Islamia, New Delhi, India ' Centre for Integrated Green and Renewable Energy, Zakir Hussain College of Engineering and Technology, Aligarh Muslim University, Aligarh, India

Abstract: This study proposes a novel cooling method for white cement clinkers, using nitrogen and carbon dioxide as alternatives to conventional water cooling. The use of nitrogen enables recycling, while hot nitrogen can serve additional purposes, addressing water wastage in the clinker cooling process. Carbon dioxide's potential in cooling clinkers at 1,400–1,450°C is also evaluated. This approach aims to improve sustainability and resource efficiency in white cement manufacturing by reducing water consumption and introducing reusable cooling agents. The result shows that W_grid increases from 386.316 kW to 1,444.651 kW, Q_cooling rises from 585.4398 kW to 2189.2882 kW, and hydrogen production improves from 0.002723 kg/s to 0.101765 kg/s as CO₂ inlet temperature increases from 150°C to 300°C. The proposed system offers a viable solution for addressing the environmental challenges of traditional white cement clinker cooling.

Keywords: poly-generation; vapour compression cooling cycle; rankine cycle; RC; hydrogen; freshwater.

DOI: 10.1504/IJEX.2025.147625

International Journal of Exergy, 2025 Vol.47 No.3, pp.179 - 195

Received: 07 Oct 2024
Accepted: 15 Jan 2025
Published online: 24 Jul 2025 *

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Title: Energetic and exergetic assessments of a cement clinker cooler integrated poly-generation plant

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