Environmental Science and Pollution Research

, Volume 24, Issue 30, pp 23508–23517 | Cite as

Heat transfer analysis of cylindrical anaerobic reactors with different sizes: a heat transfer model

  • Jiawei Liu
  • Xingqiu Zhou
  • Jiangdong Wu
  • Wen Gao
  • Xu Qian
Research Article
  • 135 Downloads

Abstract

The temperature is the essential factor that influences the efficiency of anaerobic reactors. During the operation of the anaerobic reactor, the fluctuations of ambient temperature can cause a change in the internal temperature of the reactor. Therefore, insulation and heating measures are often used to maintain anaerobic reactor’s internal temperature. In this paper, a simplified heat transfer model was developed to study heat transfer between cylindrical anaerobic reactors and their surroundings. Three cylindrical reactors of different sizes were studied, and the internal relations between ambient temperature, thickness of insulation, and temperature fluctuations of the reactors were obtained at different reactor sizes. The model was calibrated by a sensitivity analysis, and the calibrated model was well able to predict reactor temperature. The Nash-Sutcliffe model efficiency coefficient was used to assess the predictive power of heat transfer models. The Nash coefficients of the three reactors were 0.76, 0.60, and 0.45, respectively. The model can provide reference for the thermal insulation design of cylindrical anaerobic reactors.

Keywords

Cylindrical anaerobic reactor Daily temperature fluctuations Heat transfer model Sensitivity analysis 

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Copyright information

© Springer-Verlag GmbH Germany 2017

Authors and Affiliations

  • Jiawei Liu
    • 1
  • Xingqiu Zhou
    • 1
    • 2
  • Jiangdong Wu
    • 1
    • 2
  • Wen Gao
    • 1
  • Xu Qian
    • 1
  1. 1.School of Environment and EnergySouth China University of TechnologyGuangzhouPeople’s Republic of China
  2. 2.The Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of EducationGuangzhouPeople’s Republic of China

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