Energy, Exergy and Cost of Exergy Destruction for Coal-Fired Boiler in the Beverage Industry

Kritsana Asuwan; Withaya Puangsombut; Ratthasak Prommas

doi:10.69650/rast.2026.264833

Authors

Kritsana Asuwan Sustainable Energy and Environment, Rattanakosin College for Sustainable Energy and Environment, Rajamangala University of Technology Rattanakosin, Nakhon Pathom 73170, Thailand
Withaya Puangsombut Sustainable Energy and Environment, Rattanakosin College for Sustainable Energy and Environment, Rajamangala University of Technology Rattanakosin, Nakhon Pathom 73170, Thailand
Ratthasak Prommas Sustainable Energy and Environment, Rattanakosin College for Sustainable Energy and Environment, Rajamangala University of Technology Rattanakosin, Nakhon Pathom 73170, Thailand, Department of Mechanical Engineering, Faculty of Engineering, Rajamangala University of Technology Rattanakosin, Nakhon Pathom 73170, Thailand

DOI:

https://doi.org/10.69650/rast.2026.264833

Keywords:

Boiler, Coal - Fired, Beverage Industry, Exergy Efficiency, Cost of Exergy Destruction

Abstract

This paper performs an energy and exergy analysis based on data obtained from selected boilers in the beverage industry. The boiler output is 16 tons/h with a pressure of 8 bar, and the steam output is saturated vapor. A boiler is designed for coal - fired fuel (sub-bituminous coal) with an economizer (heat exchanger) for recovered waste heat. This study aims to illustrate the energy, exergy, energy efficiency and exergy efficiency of the boiler, to identify the energy and exergy effect, including
the exergy destruction costs of various loads. The data observation and recording have been made under the Thailand climatic conditions during the year 2023. The results indicated that the maximum energy and exergy efficiencies were approximately 87.98% and 27.45%, respectively, at 100% boiler load, while the minimum energy and exergy efficiencies were approximately 58.82% and 18.16%, respectively, at 25% boiler load. The highest exergy destruction, about 24,447,952 kJ/h, was also observed at 100% boiler load. The results demonstrated that as the boiler load increased, both energy and exergy efficiencies increased accordingly. The cost analysis revealed that the maximum cost of per hour was estimated at 4,323 ฿ for 100% boiler load. The analysis results confirmed that the boiler load is a major parameter influencing the overall performance of the boiler.

References

REN21. Why is renewable energy important? REN21, <https://www.ren21.net/why-is-renewable-energy-important/> (2025).

Carvalho, L. and Santos, M. R. C., The Role of the Energy Sector in Contributing to Sustainability Development Goals: A Text Mining Analysis of Literature. Energies. 17 (2023) 208, doi: https://doi.org/10.3390/en17010208.

International Energy Agency. Global energy review 2025, <https://www.iea.org/reports/global-energy-review-2025> (2025).

Wang, G., Sbai, E., Wen, L. and Selena Sheng, M., The impact of renewable energy on extreme volatility in wholesale electricity prices: Evidence from organisation for economic co-operation and development countries. Journal of Cleaner Production. 484 (2024) 144343, doi: https://doi.org/10.1016/j.jclepro.2024.144343.

M.Saleh, H., The challenges of sustainable energy transition: A focus on renewable energy. Applied Chemical Engineering. 7 (2024) 2084, doi: https://doi.org/10.59429/ace.v7i2.2084.

Vo, D. H., Vo, A. T. and Ho, C. M., Urbanization and renewable energy consumption in the emerging ASEAN markets: A comparison between short and long-run effects. Heliyon. 10 (2024) e30243, doi: https://doi.org/10.1016/j.heliyon.2024.e30243.

Sharifi, A., Allam, Z., Bibri, S. E. and Khavarian-Garmsir, A. R., Smart cities and sustainable development goals (SDGs): A systematic literature review of co-benefits and trade-offs. Cities. 146 (2024) 104659, doi: https://doi.org/10.1016/j.cities.2023.104659.

Moran, M. J. and Shapiro, H. N. Fundamentals of engineering thermodynamics. 7th edn., John Wiley & Sons, 2010.

Alzaben, H. and Fraser, R., Energy and Exergy Analyses Applied to a Crop Plant System. Thermo. 5 (2025) 3, doi: https://doi.org/10.3390/thermo5010003.

Dincer, I. and Rosen, M. A. Exergy: Energy, environment and sustainable development. 2nd edn., Elsevier, 2012.

Ratthasak, P., Piyapong, K. and Kamol, T. Optimization in rubber wood using a combined microwave, hot air and continuous conveying drying process by energy and exergy analysis, <https://repository.rmutr.ac.th/xmlui/bitstream/handle/123456789/553/Fulltext.pdf?sequence=1&isAllowed=y> (2014).

Rosen, M. A. and Dincer, I., Exergy as the confluence of energy, environment and sustainable development. Exergy, An International Journal. 1 (2001) 3-13, doi: https://doi.org/10.1016/S1164-0235(01)00004-8.

Prommas, R., Rattanadecho, P. and Cholaseuk, D., Energy and exergy analyses in drying process of porous media using hot air. International Communications in Heat and Mass Transfer. 37 (2010) 372-378, doi: https://doi.org/10.1016/j.icheatmasstransfer.2009.12.006.

Sciubba, E. and Wall, G. A brief commented history of exergy from the beginnings to 2004. International Journal of Thermodynamics. 10 (2007) 1–26.

United Nations. Department of Economic and Social Affairs Sustainable Development, <https://sdgs.un.org/goals> (2021).

Regulagadda, P., Dincer, I. and Naterer, G. F., Exergy analysis of a thermal power plant with measured boiler and turbine losses. Applied Thermal Engineering. 30 (2010) 970-976, doi: https://doi.org/10.1016/j.applthermaleng.2010.01.008.

Helios, M., Pipatmanomai, S. and Nasir, S. Energy and Exergy Analysis of Coal-Fired Power Plants: The Selected Case Studies in Thailand and Indonesia, 2012.

Dordevic, M., Mančić, M. and Mitrovic, D., Energy and exergy analysis of coal fired power plant. Facta Universitatis Series: Working and Living Environmental Protection. 11 (2014) 163-175.

Huang, S., Li, C., Tan, T., Fu, P., Xu, G. and Yang, Y., An Improved System for Utilizing Low-Temperature Waste Heat of Flue Gas from Coal-Fired Power Plants. Entropy. 19 (2017) 423, doi: https://doi.org/10.3390/e19080423.

Haseli, Y., Efficiency improvement of thermal power plants through specific entropy generation. Energy Conversion and Management. 159 (2018) 109-120, doi: https://doi.org/10.1016/j.enconman.2018.01.001.

Galal, M., Abd El-Maksoud, R. and Bayomi, N. N., Exergy analysis of a steam power station in a sulfuric acid plant. Case Studies in Thermal Engineering. 53 (2024) 103937, doi: https://doi.org/10.1016/j.csite.2023.103937.

Peerapong, P. and Limmeechokchai, B., Exergetic and thermoeconomic analyses of the rice-husk power plant in Thailand. Journal of Metals, Materials and Minerals.19 (2009) 9-14.

Oyedepo, S. O., Fagbenle, R. O., Adefila, S. S. and Alam, M. M., Thermoeconomic and thermoenvironomic modeling and analysis of selected gas turbine power plants in Nigeria. Energy Science & Engineering. 3 (2015) 423-442, doi: https://doi.org/10.1002/ese3.79.

Aljundi, I. H., Energy and exergy analysis of a steam power plant in Jordan. Applied Thermal Engineering. 29 (2009) 324-328, doi: https://doi.org/10.1016/j.applthermaleng.2008.02.029.

Elhelw, M., Al Dahma, K. S. and Attia, A. e. H., Utilizing exergy analysis in studying the performance of steam power plant at two different operation mode. Applied Thermal Engineering. 150 (2019) 285-293, doi: https://doi.org/10.1016/j.applthermaleng.2019.01.003.

Hou, D., Shao, S., Zhang, Y., Liu, S. L., Chen, Y. and Zhang, S. S., Exergy analysis of a thermal power plant using a modeling approach. Clean Technologies and Environmental Policy. 14 (2012) 805-813, doi: 10.1007/s10098-011-0447-0.

Ahmadi, G. R. and Toghraie, D., Energy and exergy analysis of Montazeri Steam Power Plant in Iran. Renewable and Sustainable Energy Reviews. 56 (2016) 454-463, doi: https://doi.org/10.1016/j.rser.2015.11.074.

Shamet, O., Ahmed, R. and Abdalla, K. N., Energy and exergy analysis of a steam power plant in Sudan. African Journal of Engineering &Technology. 1 (2021) 1-13, doi: https://doi.org/10.47959/AJET.2021.1.1.4.

Ahmad, S., Sean, L. and Muflikhun, M. A., The selection of coal for boilers in textile industry based on proximate test and cost analysis. AIP Conference Proceedings. 2654 (2023) 040011, doi: https://doi.org/10.1063/5.0114163.

Department of Alternative Energy Development and Efficiency (DEDE), Ministry of Energy, Thailand. Thailand Energy Efficiency Situation 2023 (TEES 2023), <https://www.dede.go.th/uploads/2566_forweb_1_def6a8e6b8.pdf?updated_at=2025-04-02T08:24:59.912Z> (2024).

Çengel, Y. A. and Boles, M. A. Thermodynamics: An engineering approach. 8th edn., McGraw-Hill Education, 2015.

Bejan, A., Tsatsaronis, G. and Moran, M. J. in Thermal design and optimization: Thermoeconomic Analysis and Evaluation, Ch. 8, John Wiley & Sons, (1995) 433.

Bejan, A. Advanced engineering thermodynamics. 4th edn., Wiley, 2016.

Turns, S. R. An introduction to combustion: Concepts and applications. 3rd edn., McGraw-Hill, 2012.

Moran, M. J. Availability analysis: A guide to efficient energy use. Prentice-Hall, 1982.

Kotas, T. J. The Exergy Method of Thermal Plant Analysis. Elsevier, 2012.

Xu, W., Jin, Y., Zhu, L. and Li, Z., Performance Analysis of the Technology of High-Temperature Boiler Feed Water to Recover the Waste Heat of Mid–Low-Temperature Flue Gas. ACS Omega. 6 (2021) 26318-26328, doi: https://doi.org/10.1021/acsomega.1c03465.

Szargut, J., Morris, D. R. and Steward, F. R. Exergy analysis of thermal, chemical, and metallurgical processes. Hemisphere Publishing, 1988.

Tsegaye, T. and Gashaw, T., Energy, Entropy And Exergy Concepts: Thermodynamic Approach, A Critical Review. Abhinav National Monthly Refereed Journal of Research in Science & Technology. 3 (2014) 4-17.

Şimşek, A. and Gungor Celik, A., Assessing the Effect of Cooling Techniques on Performance Improvement of a Binary Geothermal Power Plant by Using Exergy-Based Analysis. Processes. 13 (2025) 3063, doi: https://doi.org/10.3390/pr13103063.

Phiraphat, S., Prommas, R. and Puangsombut, W., Experimental study of natural convection in PV roof solar collector. International Communications in Heat and Mass Transfer. 89 (2017) 31-38, doi: https://doi.org/10.1016/j.icheatmasstransfer.2017.09.022.