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Heat transfer of a helical double-pipe vertical evaporator: Theoretical analysis and experimental validation

Author

Listed:
  • Colorado-Garrido, D.
  • Santoyo-Castelazo, E.
  • Hernández, J.A.
  • García-Valladares, O.
  • Siqueiros, J.
  • Juarez-Romero, D.

Abstract

A predictive model is developed to describe heat transfer and fluid dynamic behavior of a helical double-pipe vertical evaporator used in an absorption heat transformer integrated to a water purification process. The evaporator uses water as working fluid connected in countercurrent. Heat transfer by conduction in the internal tube wall is considered; in addition the change of phase is carried out into the internal tube. The dynamic model considers equations of continuity, momentum and energy in each flow. The discretized governing equations are coupled using an implicit step by step method. The results of this model are compared with the experimental data in steady state, obtaining good agreement in the evaporation process. The model is also evaluated of form dynamic to determine the principal operation variables that affect the evaporator with the main objective to optimize and control the system.

Suggested Citation

  • Colorado-Garrido, D. & Santoyo-Castelazo, E. & Hernández, J.A. & García-Valladares, O. & Siqueiros, J. & Juarez-Romero, D., 2009. "Heat transfer of a helical double-pipe vertical evaporator: Theoretical analysis and experimental validation," Applied Energy, Elsevier, vol. 86(7-8), pages 1144-1153, July.
    • Handle: RePEc:eee:appene:v:86:y:2009:i:7-8:p:1144-1153
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    Citations

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    Cited by:

    1. Colorado, D. & Hernández, J.A. & García-Valladares, O. & Huicochea, A. & Siqueiros, J., 2011. "Numerical simulation and experimental validation of a helical double-pipe vertical condenser," Applied Energy, Elsevier, vol. 88(6), pages 2136-2145, June.
    2. Jiaqiang, E. & Zhao, Xiaohuan & Liu, Haili & Chen, Jianmei & Zuo, Wei & Peng, Qingguo, 2016. "Field synergy analysis for enhancing heat transfer capability of a novel narrow-tube closed oscillating heat pipe," Applied Energy, Elsevier, vol. 175(C), pages 218-228.
    3. Parham, Kiyan & Khamooshi, Mehrdad & Tematio, Daniel Boris Kenfack & Yari, Mortaza & Atikol, Uğur, 2014. "Absorption heat transformers – A comprehensive review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 34(C), pages 430-452.
    4. Huminic, Gabriela & Huminic, Angel, 2016. "Heat transfer and flow characteristics of conventional fluids and nanofluids in curved tubes: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 58(C), pages 1327-1347.
    5. Colorado, D. & Ali, M.E. & García-Valladares, O. & Hernández, J.A., 2011. "Heat transfer using a correlation by neural network for natural convection from vertical helical coil in oil and glycerol/water solution," Energy, Elsevier, vol. 36(2), pages 854-863.
    6. Parrales, Arianna & Colorado, Dario & Huicochea, Armando & Díaz, Juan & Alfredo Hernández, J., 2014. "Void fraction correlations analysis and their influence on heat transfer of helical double-pipe vertical evaporator," Applied Energy, Elsevier, vol. 127(C), pages 156-165.
    7. Yang, Jian-Feng & Zeng, Min & Wang, Qiu-Wang, 2015. "Numerical investigation on shell-side performances of combined parallel and serial two shell-pass shell-and-tube heat exchangers with continuous helical baffles," Applied Energy, Elsevier, vol. 139(C), pages 163-174.

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