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Influence of Surface Emissivity of Target Environment on Whole Heat Transfer of Porous Ceramics Radiant Burner

Author

Listed:
  • Shuhao Zhang

    (Department of Chemical Engineering, University of Manchester, Manchester M13 9PL, UK)

  • Qian Xu

    (China Quality Inspection & Testing Center for Gas Appliances (Foshan), Foshan 528225, China)

  • Shan Su

    (School of Civil Engineering, Chongqing University, Chongqing 400030, China)

  • Shini Peng

    (School of Civil Engineering, Chongqing University, Chongqing 400030, China)

Abstract

The heat transfer between a porous ceramic radiant burner (PCRB) and a target environment was studied. The black aluminum pot (BAP) and white aluminum pot (WAP) with an emissivity of 0.72 and 0.22 were experimentally used to obtain the temperature distribution and thermal efficiency of a burner. Under the same heat load, the porous ceramic plate (PCP) of WAP is 79~90 °C higher than BAP, but the measured thermal efficiency of BAP is 15~20% higher than WAP. A heat transfer model for PCRB and pots was established based on the radiant and convection heat transfer theories. This model is applicable to common infrared radiant burners. The heat gain type of the pot was analyzed quantitively, with a relative error of less than 7%. The influence of the pot surface emissivity on the burner and heat transfer change of the pot was discussed, and the solid radiation heat gain of BAP is approximately double that of BAP under the same heat load. For PCRBs whose main heat is from radiation, the pot with a high surface emissivity can achieve better radiation utilization to improve thermal efficiency.

Suggested Citation

  • Shuhao Zhang & Qian Xu & Shan Su & Shini Peng, 2022. "Influence of Surface Emissivity of Target Environment on Whole Heat Transfer of Porous Ceramics Radiant Burner," Energies, MDPI, vol. 15(18), pages 1-14, September.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:18:p:6496-:d:907748
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    References listed on IDEAS

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    1. Keramiotis, Christos & Stelzner, Björn & Trimis, Dimosthenis & Founti, Maria, 2012. "Porous burners for low emission combustion: An experimental investigation," Energy, Elsevier, vol. 45(1), pages 213-219.
    2. Maznoy, Anatoly & Kirdyashkin, Alexander & Minaev, Sergey & Markov, Alexey & Pichugin, Nikita & Yakovlev, Evgeny, 2018. "A study on the effects of porous structure on the environmental and radiative characteristics of cylindrical Ni-Al burners," Energy, Elsevier, vol. 160(C), pages 399-409.
    3. Vahidhosseini, Seyed Mohammad & Esfahani, Javad Abolfazli & Kim, Kyung Chun, 2020. "Cylindrical porous radiant burner with internal combustion regime: Energy saving analysis using response surface method," Energy, Elsevier, vol. 207(C).
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    1. Ruslan V. Fedorov & Dmitry A. Generalov & Vyacheslav V. Sherkunov & Valeriy V. Sapunov & Sergey V. Busygin, 2023. "Improving the Efficiency of Fuel Combustion with the Use of Various Designs of Embrasures," Energies, MDPI, vol. 16(11), pages 1-15, May.

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