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Performance of secondary aluminum melting: Thermodynamic analysis and plant-site experiments

Author

Listed:
  • Li, Tianxiang
  • Hassan, Mohamed
  • Kuwana, Kazunori
  • Saito, Kozo
  • King, Paul

Abstract

This paper presents the results of plant-site experiments conducted on several natural-gas-fired, reverberatory aluminum furnaces to evaluate overall energy efficiency and to analyze major sources of heat loss, providing an overall picture of current aluminum melting furnaces in the US aluminum industry. Thermodynamic analyses were done for energy utilization according to energy balance and compared with the measured data. Our experimental results indicate that the effective energy efficiency in most melting furnaces measured is around 26–29%, and the major heat loss through flue gas is between 35% and 50%. The energy availability concept is introduced to predict the maximum energy potential and minimum flue gas heat loss in this type of aluminum furnace. Pollutant formation and control of nitrogen oxides and greenhouse gas are discussed. Methods that may improve energy efficiency and reduce pollutant emissions from melting operations are also addressed.

Suggested Citation

  • Li, Tianxiang & Hassan, Mohamed & Kuwana, Kazunori & Saito, Kozo & King, Paul, 2006. "Performance of secondary aluminum melting: Thermodynamic analysis and plant-site experiments," Energy, Elsevier, vol. 31(12), pages 1769-1779.
    • Handle: RePEc:eee:energy:v:31:y:2006:i:12:p:1769-1779
    DOI: 10.1016/j.energy.2005.08.005
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    Cited by:

    1. Du, J.D. & Han, W.J. & Peng, Y.H. & Gu, C.C., 2010. "Potential for reducing GHG emissions and energy consumption from implementing the aluminum intensive vehicle fleet in China," Energy, Elsevier, vol. 35(12), pages 4671-4678.
    2. Liu, Weipeng & Peng, Tao & Tang, Renzhong & Umeda, Yasushi & Hu, Luoke, 2020. "An Internet of Things-enabled model-based approach to improving the energy efficiency of aluminum die casting processes," Energy, Elsevier, vol. 202(C).
    3. Liu, Zhe & Geng, Yong & Adams, Michelle & Dong, Liang & Sun, Lina & Zhao, Jingjing & Dong, Huijuan & Wu, Jiao & Tian, Xu, 2016. "Uncovering driving forces on greenhouse gas emissions in China’ aluminum industry from the perspective of life cycle analysis," Applied Energy, Elsevier, vol. 166(C), pages 253-263.

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