Waste heat recovery by thermodynamic cycles in cement plants: A review

Alibakhsh Kasaeian, Fatemeh Afshari, Mahdi Mahmoudkhani, Amirali Masoumi and Mehdi Esmaeili Bidhendi

Energy, 2025, vol. 314, issue C

Abstract: The extensive utilization of non-renewable energy resources not only harms the environment and human well-being but also leads to the impending depletion of these fuel sources. Among the world's primary consumers of non-renewable fuels and waste heat sources, the cement manufacturing industry is a significant contributor. The rotary kiln, preheater, and flue exhaust air used in cement production lose a considerable amount of energy. Hence, we have considered waste heat recovery in cement factories and the many technologies available in this field. One of the most important methods of waste heat recovery is the use of thermodynamic cycles for power generation, such as the Steam Rankine Cycle, Organic Rankine Cycle, Kalina cycle, Brayton cycle, and supercritical carbon dioxide. This study examined the system thermal efficiency, energy and exergy efficiency, power generation, and operating conditions of thermodynamic cycles in three categories: mono-generation, co-generation, and multi-generation. In addition, we investigated waste heat recovery from rotary kilns by applying thermoelectric generators.

Keywords: Cement planta; Energy and exergy efficiency; Power generation; Thermodynamic cycles; Waste heat recovery (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:314:y:2025:i:c:s0360544224038659

DOI: 10.1016/j.energy.2024.134087

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