IDEAS home Printed from https://ideas.repec.org/a/eee/rensus/v165y2022ics1364032122004609.html
   My bibliography  Save this article

Continuum approach to evaluate humidity transportation by an Earth to Air Energy Exchanger

Author

Listed:
  • Elombo Motoula, Smaël Magloire
  • Gomat, Landry Jean Pierre
  • Lin, Jian
  • M’passi Mabiala, Bernard

Abstract

The efficiency of an Earth to Air Energy Exchanger is evaluated for the transport of outdoor air moisture by the simplified analytical method implemented in the previous paper for the transport of dry air temperature. The approach was to establish and solve analytically the diffusion equation of the air’s mixing ratio in the exchanger. The variation of the saturated air mixing ratio is observed even in the horizontal tubes. The theoretical results indicate that the extreme limits of the mixing ratio of saturated air that the exchanger can reach are ϖs(Tm)=0.00967601 g/g in the vertical part and ϖs(Tmsol)=0.0123178 g/g in the horizontal part. The analysis showed a better understanding of the process. Numerical results of the moisture assessment are plotted against the experimental results. These results conclude that the vertical part has a significant contribution of about three per cent (3%) to the overall efficiency of the device, while it represents less than five per cent (5%) of the length of the whole system. The change in the humid air’s mixing ratio is determined by calculating the mass flux between the humid air and the inner surface of the tubes. To calculate the energy transfer coefficient, the condensate velocity flow was evaluated under humid air flow conditions so that Ul<0.00138m/s; indicating a fringe thickness of the water condensate film such that dl<1.15⋅10−4 m. Considering Ul=0.0004m/s, the present work achieves 98% of the experimental results. This approach could be effectively used for vertical tubes for medium and deep geothermal energy.

Suggested Citation

  • Elombo Motoula, Smaël Magloire & Gomat, Landry Jean Pierre & Lin, Jian & M’passi Mabiala, Bernard, 2022. "Continuum approach to evaluate humidity transportation by an Earth to Air Energy Exchanger," Renewable and Sustainable Energy Reviews, Elsevier, vol. 165(C).
    • Handle: RePEc:eee:rensus:v:165:y:2022:i:c:s1364032122004609
    DOI: 10.1016/j.rser.2022.112562
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S1364032122004609
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.rser.2022.112562?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. Li, Hui & Ni, Long & Yao, Yang & Sun, Cheng, 2020. "Annual performance experiments of an earth-air heat exchanger fresh air-handling unit in severe cold regions: Operation, economic and greenhouse gas emission analyses," Renewable Energy, Elsevier, vol. 146(C), pages 25-37.
    2. Gomat, Landry Jean Pierre & Elombo Motoula, Smaël Magloire & M’Passi-Mabiala, Bernard, 2020. "An analytical method to evaluate the impact of vertical part of an earth-air heat exchanger on the whole system," Renewable Energy, Elsevier, vol. 162(C), pages 1005-1016.
    3. Soni, Suresh Kumar & Pandey, Mukesh & Bartaria, Vishvendra Nath, 2015. "Ground coupled heat exchangers: A review and applications," Renewable and Sustainable Energy Reviews, Elsevier, vol. 47(C), pages 83-92.
    4. Ozgener, Leyla, 2011. "A review on the experimental and analytical analysis of earth to air heat exchanger (EAHE) systems in Turkey," Renewable and Sustainable Energy Reviews, Elsevier, vol. 15(9), pages 4483-4490.
    5. Chong Zhang & Jinbo Wang & Liao Li & Feifei Wang & Wenjie Gang, 2020. "Utilization of Earth-to-Air Heat Exchanger to Pre-Cool/Heat Ventilation Air and Its Annual Energy Performance Evaluation: A Case Study," Sustainability, MDPI, vol. 12(20), pages 1-17, October.
    6. Bordoloi, Namrata & Sharma, Aashish & Nautiyal, Himanshu & Goel, Varun, 2018. "An intense review on the latest advancements of Earth Air Heat Exchangers," Renewable and Sustainable Energy Reviews, Elsevier, vol. 89(C), pages 261-280.
    7. Mihalakakou, Giouli & Souliotis, Manolis & Papadaki, Maria & Halkos, George & Paravantis, John & Makridis, Sofoklis & Papaefthimiou, Spiros, 2022. "Applications of earth-to-air heat exchangers: A holistic review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 155(C).
    8. Ozgener, Onder & Ozgener, Leyla & Goswami, D. Yogi, 2017. "Seven years energetic and exergetic monitoring for vertical and horizontal EAHE assisted agricultural building heating," Renewable and Sustainable Energy Reviews, Elsevier, vol. 80(C), pages 175-179.
    9. Liu, Zhengxuan & Yu, Zhun (Jerry) & Yang, Tingting & Roccamena, Letizia & Sun, Pengcheng & Li, Shuisheng & Zhang, Guoqiang & El Mankibi, Mohamed, 2019. "Numerical modeling and parametric study of a vertical earth-to-air heat exchanger system," Energy, Elsevier, vol. 172(C), pages 220-231.
    10. Tittelein, Pierre & Achard, Gilbert & Wurtz, Etienne, 2009. "Modelling earth-to-air heat exchanger behaviour with the convolutive response factors method," Applied Energy, Elsevier, vol. 86(9), pages 1683-1691, September.
    11. Soares, N. & Bastos, J. & Pereira, L. Dias & Soares, A. & Amaral, A.R. & Asadi, E. & Rodrigues, E. & Lamas, F.B. & Monteiro, H. & Lopes, M.A.R. & Gaspar, A.R., 2017. "A review on current advances in the energy and environmental performance of buildings towards a more sustainable built environment," Renewable and Sustainable Energy Reviews, Elsevier, vol. 77(C), pages 845-860.
    12. Ahmed, S.F. & Khan, M.M.K. & Amanullah, M.T.O. & Rasul, M.G. & Hassan, N.M.S., 2021. "A parametric analysis of the cooling performance of vertical earth-air heat exchanger in a subtropical climate," Renewable Energy, Elsevier, vol. 172(C), pages 350-367.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Gomat, Landry Jean Pierre & Elombo Motoula, Smaël Magloire & M’Passi-Mabiala, Bernard, 2020. "An analytical method to evaluate the impact of vertical part of an earth-air heat exchanger on the whole system," Renewable Energy, Elsevier, vol. 162(C), pages 1005-1016.
    2. Mihalakakou, Giouli & Souliotis, Manolis & Papadaki, Maria & Halkos, George & Paravantis, John & Makridis, Sofoklis & Papaefthimiou, Spiros, 2022. "Applications of earth-to-air heat exchangers: A holistic review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 155(C).
    3. Bordoloi, Namrata & Sharma, Aashish & Nautiyal, Himanshu & Goel, Varun, 2018. "An intense review on the latest advancements of Earth Air Heat Exchangers," Renewable and Sustainable Energy Reviews, Elsevier, vol. 89(C), pages 261-280.
    4. 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.
    5. Aldona Skotnicka-Siepsiak, 2020. "Operation of a Tube GAHE in Northeastern Poland in Spring and Summer—A Comparison of Real-World Data with Mathematically Modeled Data," Energies, MDPI, vol. 13(7), pages 1-15, April.
    6. Qin, Di & Liu, Zhengxuan & Zhou, Yuekuan & Yan, Zhongjun & Chen, Dachuan & Zhang, Guoqiang, 2021. "Dynamic performance of a novel air-soil heat exchanger coupling with diversified energy storage components—modelling development, experimental verification, parametrical design and robust operation," Renewable Energy, Elsevier, vol. 167(C), pages 542-557.
    7. H.Ali, Mohammed & Kurjak, Zoltan & Beke, Janos, 2023. "Investigation of earth air heat exchangers functioning in arid locations using Matlab/Simulink," Renewable Energy, Elsevier, vol. 209(C), pages 632-643.
    8. Diana D’Agostino & Francesco Esposito & Adriana Greco & Claudia Masselli & Francesco Minichiello, 2020. "The Energy Performances of a Ground-to-Air Heat Exchanger: A Comparison Among Köppen Climatic Areas," Energies, MDPI, vol. 13(11), pages 1-25, June.
    9. Mahmoud, Montaser & Alkhedher, Mohammad & Ramadan, Mohamad & Naher, Sumsun & Pullen, Keith, 2022. "An investigation on organic Rankine cycle incorporating a ground-cooled condenser: Working fluid selection and regeneration," Energy, Elsevier, vol. 249(C).
    10. Yıldız, Ahmet & Ozgener, Onder & Ozgener, Leyla, 2012. "Energetic performance analysis of a solar photovoltaic cell (PV) assisted closed loop earth-to-air heat exchanger for solar greenhouse cooling: An experimental study for low energy architecture in Aeg," Renewable Energy, Elsevier, vol. 44(C), pages 281-287.
    11. Rachana Vidhi, 2018. "A Review of Underground Soil and Night Sky as Passive Heat Sink: Design Configurations and Models," Energies, MDPI, vol. 11(11), pages 1-24, October.
    12. Nemati, Nasibeh & Omidvar, Amir & Rosti, Behnam, 2021. "Performance evaluation of a novel hybrid cooling system combining indirect evaporative cooler and earth-air heat exchanger," Energy, Elsevier, vol. 215(PB).
    13. Rodrigues, Michel Kepes & Vaz, Joaquim & Oliveira Rocha, Luiz Alberto & Domingues dos Santos, Elizaldo & Isoldi, Liércio André, 2022. "A full approach to Earth-Air Heat Exchanger employing computational modeling, performance analysis and geometric evaluation," Renewable Energy, Elsevier, vol. 191(C), pages 535-556.
    14. Soni, Suresh Kumar & Pandey, Mukesh & Bartaria, Vishvendra Nath, 2016. "Hybrid ground coupled heat exchanger systems for space heating/cooling applications: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 60(C), pages 724-738.
    15. Wei, Haibin & Yang, Dong & Du, Jinhui & Guo, Xin, 2021. "Field experiments on the effects of an earth-to-air heat exchanger on the indoor thermal environment in summer and winter for a typical hot-summer and cold-winter region," Renewable Energy, Elsevier, vol. 167(C), pages 530-541.
    16. Benhammou, Mohammed & Draoui, Belkacem, 2015. "Parametric study on thermal performance of earth-to-air heat exchanger used for cooling of buildings," Renewable and Sustainable Energy Reviews, Elsevier, vol. 44(C), pages 348-355.
    17. 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).
    18. D'Agostino, D. & Minichiello, F. & Petito, F. & Renno, C. & Valentino, A., 2022. "Retrofit strategies to obtain a NZEB using low enthalpy geothermal energy systems," Energy, Elsevier, vol. 239(PD).
    19. Liang Tang & Zhengxuan Liu & Yuekuan Zhou & Di Qin & Guoqiang Zhang, 2020. "Study on a Dynamic Numerical Model of an Underground Air Tunnel System for Cooling Applications—Experimental Validation and Multidimensional Parametrical Analysis," Energies, MDPI, vol. 13(5), pages 1-20, March.
    20. Ozgener, Onder & Ozgener, Leyla & Goswami, D. Yogi, 2017. "Seven years energetic and exergetic monitoring for vertical and horizontal EAHE assisted agricultural building heating," Renewable and Sustainable Energy Reviews, Elsevier, vol. 80(C), pages 175-179.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:rensus:v:165:y:2022:i:c:s1364032122004609. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.elsevier.com/wps/find/journaldescription.cws_home/600126/description#description .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.