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Local exergy cost analysis of microwave heating systems

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  • Acevedo, Luis
  • Usón, Sergio
  • Uche, Javier

Abstract

The purpose of this work is to collect and interrelate the fundamental concepts about exergy transfer analysis and local exergy cost applied to the analysis of microwave heating systems. First, thermoeconomics and exergoeconomics are reviewed. Local exergy analysis is presented next, including local efficiency, and local cost associated. Emphasis is put on local cost that an electromagnetic field can generate and its association with microwave heating exergy. Unsteady-state of exergy cost transfer and exergy costing are difficult to perform during microwave heating due to the complex combination of electromagnetic fields and heat transfer analysis, while the electromagnetic field distribution occurs at a time scale of nanoseconds, heat and exergy cost transfer occurs at time scale of seconds. For this reason, simulations reported to date deal only with cases of First and Second Law of Thermodynamics with no mention of local efficiency or local cost, leaving an open promising field of research. By and large, results are presented for two heating methods, conventional and microwave.

Suggested Citation

  • Acevedo, Luis & Usón, Sergio & Uche, Javier, 2015. "Local exergy cost analysis of microwave heating systems," Energy, Elsevier, vol. 80(C), pages 437-451.
    • Handle: RePEc:eee:energy:v:80:y:2015:i:c:p:437-451
    DOI: 10.1016/j.energy.2014.11.085
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    Cited by:

    1. Wang, Wenlong & Zhao, Chao & Sun, Jing & Wang, Xiaolin & Zhao, Xiqiang & Mao, Yanpeng & Li, Xinning & Song, Zhanlong, 2015. "Quantitative measurement of energy utilization efficiency and study of influence factors in typical microwave heating process," Energy, Elsevier, vol. 87(C), pages 678-685.
    2. Jafari, Hassan & Kalantari, Davood & Azadbakht, Mohsen, 2017. "Semi-industrial continuous band microwave dryer for energy and exergy analyses, mathematical modeling of paddy drying and it's qualitative study," Energy, Elsevier, vol. 138(C), pages 1016-1029.
    3. Bhattacharya, Madhuchhanda & Basak, Tanmay, 2016. "A review on the susceptor assisted microwave processing of materials," Energy, Elsevier, vol. 97(C), pages 306-338.
    4. Yang, Huayu & Zhang, Yuhao & Gao, Wenhua & Yan, Bowen & Zhao, Jianxin & Zhang, Hao & Chen, Wei & Fan, Daming, 2021. "Steam replacement strategy using microwave resonance: A future system for continuous-flow heating applications," Applied Energy, Elsevier, vol. 283(C).

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