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Numerical Assessment of Earth to Air Heat Exchanger with Variable Humidity Conditions in Greenhouses

Author

Listed:
  • Di Qi

    (School of Building Services Science and Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China)

  • Chuangyao Zhao

    (School of Building Services Science and Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China)

  • Shixiong Li

    (School of Building Services Science and Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China)

  • Ran Chen

    (School of Building Services Science and Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China)

  • Angui Li

    (School of Building Services Science and Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China)

Abstract

Earth to air heat exchangers are widely utilized to cool or heat passive buildings for energy savings. They often need to deal with high humidity air conditions, especially in the greenhouse due to plant transpiration, and the condensation phenomenon is frequently observed during the cooling process. To evaluate the effect of humidity and condensation on thermal performance, a three dimensional computational fluid dynamic (3D-CFD) model was developed. The distribution of relative humidity in each pipe was investigated, and the impact of inlet air relative humidity on the integrated performance of the earth to air heat exchanger was discussed. The effects of inlet air temperature and volume flow rate were also analyzed. Moreover, the influence of the heat exchanger configurations on the performance of the air condensation was researched. The results indicated that condensation had few effects on the airflow distribution uniformity of the earth to air heat exchanger, while it acted observably on the thermal performance. In addition, humid air in a small diameter pipe tended to condense more easily. Humidity and condensation should be taken into consideration for the design of earth to air heat exchangers in greenhouses during engineering applications.

Suggested Citation

  • Di Qi & Chuangyao Zhao & Shixiong Li & Ran Chen & Angui Li, 2021. "Numerical Assessment of Earth to Air Heat Exchanger with Variable Humidity Conditions in Greenhouses," Energies, MDPI, vol. 14(5), pages 1-18, March.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:5:p:1368-:d:509296
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    References listed on IDEAS

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    1. Kangji Li & Wenping Xue & Hanping Mao & Xu Chen & Hui Jiang & Gang Tan, 2019. "Optimizing the 3D Distributed Climate inside Greenhouses Using Multi-Objective Optimization Algorithms and Computer Fluid Dynamics," Energies, MDPI, vol. 12(15), pages 1-19, July.
    2. Jiaming Guo & Yanhua Liu & Enli Lü, 2019. "Numerical Simulation of Temperature Decrease in Greenhouses with Summer Water-Sprinkling Roof," Energies, MDPI, vol. 12(12), pages 1-15, June.
    3. Niu, Fuxin & Yu, Yuebin & Yu, Daihong & Li, Haorong, 2015. "Heat and mass transfer performance analysis and cooling capacity prediction of earth to air heat exchanger," Applied Energy, Elsevier, vol. 137(C), pages 211-221.
    4. Amanowicz, Łukasz, 2018. "Influence of geometrical parameters on the flow characteristics of multi-pipe earth-to-air heat exchangers – experimental and CFD investigations," Applied Energy, Elsevier, vol. 226(C), pages 849-861.
    5. Adriana Greco & Claudia Masselli, 2020. "The Optimization of the Thermal Performances of an Earth to Air Heat Exchanger for an Air Conditioning System: A Numerical Study," Energies, MDPI, vol. 13(23), pages 1-25, December.
    6. Sara Bonuso & Simone Panico & Cristina Baglivo & Domenico Mazzeo & Nicoletta Matera & Paolo Maria Congedo & Giuseppe Oliveti, 2020. "Dynamic Analysis of the Natural and Mechanical Ventilation of a Solar Greenhouse by Coupling Controlled Mechanical Ventilation (CMV) with an Earth-to-Air Heat Exchanger (EAHX)," Energies, MDPI, vol. 13(14), pages 1-22, July.
    7. Lekhal, Mohammed Cherif & Benzaama, Mohammed-Hichem & Kindinis, Andrea & Mokhtari, Abderahmane-Mejedoub & Belarbi, Rafik, 2021. "Effect of geo-climatic conditions and pipe material on heating performance of earth-air heat exchangers," Renewable Energy, Elsevier, vol. 163(C), pages 22-40.
    8. Marouen Ghoulem & Khaled El Moueddeb & Ezzedine Nehdi & Fangliang Zhong & John Calautit, 2020. "Design of a Passive Downdraught Evaporative Cooling Windcatcher (PDEC-WC) System for Greenhouses in Hot Climates," Energies, MDPI, vol. 13(11), pages 1-23, June.
    9. Wei, Haibin & Yang, Dong & Wang, Jilibo & Du, Jinhui, 2020. "Field experiments on the cooling capability of earth-to-air heat exchangers in hot and humid climate," Applied Energy, Elsevier, vol. 276(C).
    10. Akeiber, Hussein & Nejat, Payam & Majid, Muhd Zaimi Abd. & Wahid, Mazlan A. & Jomehzadeh, Fatemeh & Zeynali Famileh, Iman & Calautit, John Kaiser & Hughes, Ben Richard & Zaki, Sheikh Ahmad, 2016. "A review on phase change material (PCM) for sustainable passive cooling in building envelopes," Renewable and Sustainable Energy Reviews, Elsevier, vol. 60(C), pages 1470-1497.
    11. Diana D’Agostino & Francesco Esposito & Adriana Greco & Claudia Masselli & Francesco Minichiello, 2020. "Parametric Analysis on an Earth-to-Air Heat Exchanger Employed in an Air Conditioning System," Energies, MDPI, vol. 13(11), pages 1-24, June.
    12. Qinggong Liu & Zhenyu Du & Yi Fan, 2018. "Heat and Mass Transfer Behavior Prediction and Thermal Performance Analysis of Earth-to-Air Heat Exchanger by Finite Volume Method," Energies, MDPI, vol. 11(6), pages 1-19, June.
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    Cited by:

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    2. Qi, Di & Xie, Wenbin & Zhao, Chuangyao & Song, Bingye & Li, Angui, 2023. "Evaluation of the integrated performance for floor heating using micro-encapsulated phase change material slurry," Renewable Energy, Elsevier, vol. 217(C).

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