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The influence of different ground covers on the heating potential of earth-to-air heat exchangers

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  • Mihalakakou, G.
  • Lewis, J.O.
  • Santamouris, M.

Abstract

Ten years' hourly measurements of air and ground temperature values at various depths below bare and short grass soil at Dublin Airport have been used in order to investigate the impact of different ground surface boundary conditions on the efficiency of a single and a multiple parallel earth-to-air heat exchanger system. The heating potential of both these systems buried under bare soil has been assessed and compared with the heating potential of the same systems buried under short-grass-covered soil. The results of this comparison revealed that soil surface cover might be a significant controllable factor for the improvement of the performance of earth-to-air heat exchangers. The heating system consists of a single pipe or multiple parallel pipes laid horizontally, through which ambient or indoor air is propelled and heated by the bulk temperature of the natural ground. The dynamic thermal performance of these systems during the winter period and their operational limits have been calculated using an accurate numerical model. Finally, a sensitivity analysis was performed in order to investigate the effect of the main design parameters, such as pipe length, pipe radius, air velocity inside the tube and the depth of the buried pipe below the earth's surface, on the system heating capacity. Cumulative frequency distributions of the air temperature at the pipe's exit have been developed as a function of the main input parameters.

Suggested Citation

  • Mihalakakou, G. & Lewis, J.O. & Santamouris, M., 1996. "The influence of different ground covers on the heating potential of earth-to-air heat exchangers," Renewable Energy, Elsevier, vol. 7(1), pages 33-46.
    • Handle: RePEc:eee:renene:v:7:y:1996:i:1:p:33-46
    DOI: 10.1016/0960-1481(95)00114-X
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    References listed on IDEAS

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    1. Mihalakakou, G. & Santamouris, M. & Asimakopoulos, D., 1994. "Use of the ground for heat dissipation," Energy, Elsevier, vol. 19(1), pages 17-25.
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    Cited by:

    1. Badescu, Viorel, 2007. "Simple and accurate model for the ground heat exchanger of a passive house," Renewable Energy, Elsevier, vol. 32(5), pages 845-855.
    2. Badache, Messaoud & Eslami-Nejad, Parham & Ouzzane, Mohamed & Aidoun, Zine & Lamarche, Louis, 2016. "A new modeling approach for improved ground temperature profile determination," Renewable Energy, Elsevier, vol. 85(C), pages 436-444.
    3. 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.
    4. Singh, Ramkishore & Sawhney, R.L. & Lazarus, I.J. & Kishore, V.V.N., 2018. "Recent advancements in earth air tunnel heat exchanger (EATHE) system for indoor thermal comfort application: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 82(P3), pages 2162-2185.
    5. 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.
    6. Peretti, Clara & Zarrella, Angelo & De Carli, Michele & Zecchin, Roberto, 2013. "The design and environmental evaluation of earth-to-air heat exchangers (EAHE). A literature review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 28(C), pages 107-116.
    7. Gan, Guohui, 2017. "Dynamic thermal simulation of horizontal ground heat exchangers for renewable heating and ventilation of buildings," Renewable Energy, Elsevier, vol. 103(C), pages 361-371.
    8. Agrawal, Kamal Kumar & Misra, Rohit & Agrawal, Ghanshyam Das, 2020. "To study the effect of different parameters on the thermal performance of ground-air heat exchanger system: In situ measurement," Renewable Energy, Elsevier, vol. 146(C), pages 2070-2083.
    9. Tsilingiridis, G. & Papakostas, K., 2014. "Investigating the relationship between air and ground temperature variations in shallow depths in northern Greece," Energy, Elsevier, vol. 73(C), pages 1007-1016.
    10. 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.
    11. Agrawal, Kamal Kumar & Misra, Rohit & Agrawal, Ghanshyam Das, 2020. "Improving the thermal performance of ground air heat exchanger system using sand-bentonite (in dry and wet condition) as backfilling material," Renewable Energy, Elsevier, vol. 146(C), pages 2008-2023.
    12. El-Din, M.M.Salah, 1999. "On the heat flow into the ground," Renewable Energy, Elsevier, vol. 18(4), pages 473-490.
    13. Seama Koohi-Fayegh & Marc A. Rosen, 2013. "A Review of the Modelling of Thermally Interacting Multiple Boreholes," Sustainability, MDPI, vol. 5(6), pages 1-18, June.
    14. 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).
    15. Taurines, Kevin & Giroux-Julien, Stéphanie & Farid, Mohammed & Ménézo, Christophe, 2021. "Numerical modelling of a building integrated earth-to-air heat exchanger," Applied Energy, Elsevier, vol. 296(C).

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