Modelling the Concept of Waste-Heat Recovery System for Generating Electricity in Holcim Cement Factory, Kien Giang, Vietnam
Main Article Content
Abstract
Salvaging waste-heat from system's kilns and boilers in Waste-Heat Recovery System (WHRS) for generating electricity is being a potential opportunity in Vietnam. This paper aims at building a model for simulating the WHRS of Holcim cement factory in Kien Giang. The model then will be implemented as an available scientific base for other factories in Vietnam. The existing WHRS of factory is simulated in order to demonstrate the accuracy of model so that the results can be used for modelling a new solution which salvages waste-heat from water-boiler of system. Results of the simulation are closely similar to parameters obtained from the existing system. The new suggestion of waste-heat salvaging shows impressive results with 34.5% increase of generator power and 33.3% raise of electricity energy in comparison with the existing system; 1.32 million USD is saved, and 10.3 tons of CO2 is mitigated annually by implementing the new WHRS one. For its positive results, the system then will be implemented commercially for other cement factories in Vietnam.
Keywords
Modelling, cement, waste-heat recovery system, Vietnam
Article Details
References
[1] Varma, G. V. P. and T. Srinivas. Design and analysis of a cogeneration plant using heat recovery of a cement factory. Case Studies in Thermal Engineering. 2015, vol. 5, pp. 24-31.
[2] Madloola, N. A., R. Saidura, N. A. Rahim, M. R. Islama and M. S. Hossian. An energy analysis for cement industries: An overview. Renewable and Sustainable Energy Review. 2012, vol. 16, issue. 1, pp. 921-932.
[3] Söğüt Z., Z. Oktay and H. Karakoç. Mathematical modelling of heat recovery recove from a rotary kiln. Applied Thermal Engineering. 2010, vol.30, pp. 817-825.
[4] Sui, X., Y. Zhang, S. Shao and S. Zhang. Energetic life cycle assessment of cement production process with waste heat power generation. Energy Conversion and Management.2014, vol.88, pp. 684-692.
[5] Tan, Y., X. Li, L. Zhao, H. Li, J. Yan and Z. Yu. Study on Utilization of Waste Heat in Cement Plant. Energy Procedia. 2014, vol.61. pp. 455-458.
[6] Brückner, S., S. Liu, L. Miró, M. Radspieler, L. Cabeza and E. Lävemann. Industrial waste heat recovery technologies: An economic analysis of heat transformation technologies. Applied Energy. 2105, vol. 151. pp. 157-167.
[7] Galvez-Martos, J. L. and H. Schoenberger. An analysis of the use of life cycle assessment for waste co-incineration in cement kilns. Resources, Conservation and Recycling. 2014, vol.86, pp. 118-131.
[8] Schneider. M. Process technology for efficient and sustainable cement production. Cement and Concrete Research. 2015, vol.78, pp. 14-23.
[9] Karamarkovíc, V., M. Maraševíc, R.Karamarkovíc and M. Karamarkovíc. Recuperator for waste heat recovery from rotary kilns. Applied Thermal Engineering. 2013, vol.54, pp. 470-480.
[10] Karellas, S., A. D. Leontaritis, G. Panousis, E. Bellos and E. Kakaras. Energetic analysis of waste heat recovery systems in the cement industry. Energy. 2013, vol.58, pp. 147-156.
[11] Cuong-Vo, V.. Life Cycle CO2 Emission Factors of Power Generation in Vietnam. Journal of Science and Technology. 2010, vol.79, pp. 102-107.
[12] INSTITUTE OF ENERGY, Electricity of Vietnam (EVN), Ministry of Industry. The Master plan on Electric Power Development in Vietnam for the period of 2010-2020 perspective to 2030. Hanoi. 2010.
[13] VIETNAM INSTITUTE FOR BUILDING MATERIALS, Ministry of Construction. Cement industry development plan of Vietnam to 2020, looking forward to 2030. Hanoi, 2011.
[14] HOLCIM VIETNAM. Sustainable development 2012 report of Holcim Vietnam 100 years of sustainable development. Vietnam, 2013.
[15] HOLCIM VIETNAM. Documents of the Holcim Cement Factory-Kien Giang. Vietnam, 2014.
[16] Technical specifications Hon Chong Exhaust Heat Recovery Power Plant in Vietnam. 2014.
[17] http://www.alstom.com/products-services/
[18] http://vn.mhi.co.jp/
[2] Madloola, N. A., R. Saidura, N. A. Rahim, M. R. Islama and M. S. Hossian. An energy analysis for cement industries: An overview. Renewable and Sustainable Energy Review. 2012, vol. 16, issue. 1, pp. 921-932.
[3] Söğüt Z., Z. Oktay and H. Karakoç. Mathematical modelling of heat recovery recove from a rotary kiln. Applied Thermal Engineering. 2010, vol.30, pp. 817-825.
[4] Sui, X., Y. Zhang, S. Shao and S. Zhang. Energetic life cycle assessment of cement production process with waste heat power generation. Energy Conversion and Management.2014, vol.88, pp. 684-692.
[5] Tan, Y., X. Li, L. Zhao, H. Li, J. Yan and Z. Yu. Study on Utilization of Waste Heat in Cement Plant. Energy Procedia. 2014, vol.61. pp. 455-458.
[6] Brückner, S., S. Liu, L. Miró, M. Radspieler, L. Cabeza and E. Lävemann. Industrial waste heat recovery technologies: An economic analysis of heat transformation technologies. Applied Energy. 2105, vol. 151. pp. 157-167.
[7] Galvez-Martos, J. L. and H. Schoenberger. An analysis of the use of life cycle assessment for waste co-incineration in cement kilns. Resources, Conservation and Recycling. 2014, vol.86, pp. 118-131.
[8] Schneider. M. Process technology for efficient and sustainable cement production. Cement and Concrete Research. 2015, vol.78, pp. 14-23.
[9] Karamarkovíc, V., M. Maraševíc, R.Karamarkovíc and M. Karamarkovíc. Recuperator for waste heat recovery from rotary kilns. Applied Thermal Engineering. 2013, vol.54, pp. 470-480.
[10] Karellas, S., A. D. Leontaritis, G. Panousis, E. Bellos and E. Kakaras. Energetic analysis of waste heat recovery systems in the cement industry. Energy. 2013, vol.58, pp. 147-156.
[11] Cuong-Vo, V.. Life Cycle CO2 Emission Factors of Power Generation in Vietnam. Journal of Science and Technology. 2010, vol.79, pp. 102-107.
[12] INSTITUTE OF ENERGY, Electricity of Vietnam (EVN), Ministry of Industry. The Master plan on Electric Power Development in Vietnam for the period of 2010-2020 perspective to 2030. Hanoi. 2010.
[13] VIETNAM INSTITUTE FOR BUILDING MATERIALS, Ministry of Construction. Cement industry development plan of Vietnam to 2020, looking forward to 2030. Hanoi, 2011.
[14] HOLCIM VIETNAM. Sustainable development 2012 report of Holcim Vietnam 100 years of sustainable development. Vietnam, 2013.
[15] HOLCIM VIETNAM. Documents of the Holcim Cement Factory-Kien Giang. Vietnam, 2014.
[16] Technical specifications Hon Chong Exhaust Heat Recovery Power Plant in Vietnam. 2014.
[17] http://www.alstom.com/products-services/
[18] http://vn.mhi.co.jp/