International Scientific Journal


A quasi-three-dimensional soil - air heat and mass transfer model was established to simulate the process of heat and moisture exchange in the vertical and double soil-air heat exchanger. At the same time, the heat and moisture exchange were considered in the model, and the air flow parameter equation and heat transfer control equation were combined. MATLwas used for the calculation procedure, and the model was solved using an iterative method. The average relative error of the numerical calculation was less than 2%. Moreover, the heat exchanger performance influence factors were validated. The simulation results showed that: with the lengthening of the heat exchanger, the smaller the airflow, the shorter the running time, the air temperature and moisture content at the outlet of the heat exchanger were lower, the cooling and dehumidification effect were more obvious. However, the magnitude of change gradually decreased, and finally stabilized.
PAPER REVISED: 2018-12-17
PAPER ACCEPTED: 2018-12-18
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THERMAL SCIENCE YEAR 2019, VOLUME 23, ISSUE Issue 6, PAGES [3905 - 3916]
  1. Dong X.J.,Gu B.. A novel design method for ground source heat pump,Thermal Science ,18(2014),5,pp.1661-1666
  2. Sodha, M. S., et al., Evaluation of an earth-air-tunnel system for cooling/heating of a hospital complex, Building and Environment, 20(1985), 2,pp.115-122
  3. Santamouris, M., et al., On the performance of buildings coupled with earth to air heat exchangers , Solar Energy, 54(1995), 6,pp.375-380
  4. Wang, J., Application of underground tunnel ventilation to air conditioning system for Mogao Grottoes'Tourist Service Center, HV&AC , 41(2011),10, pp.15-17, 33
  5. Liu, H. , et al., Experiment research of dynamic heat transfer characteristics for earth-air heat exchanger in greenhouse under coupled heat and moisture transfer, Science Technology and Engineering , 15(2015), 18,pp. 97-103
  6. Fan,Y. , et al.,The simulation study of the heat transfer characteristics of air-soil heat exchanger, Renewable Energy Resources , 34(2016), 10,pp.1517-1524
  7. Han, L. C. , et al., Numerical analysis of cooling effect of tunnel ventilation system in subway station, Refrigeration & Air Conditioning, 30(2016), 1,pp.1-4
  8. Yang, Y. F. , et al., Research on application of earth-to-air heat exchanger in museum building, Renewable Energy Resources, 32(2014) ,9,pp.1352-1358
  9. Wu, J.T. , et al.,Test study of a building-flesh air-system using earth-air heat exchangers . Journal of Hebei University of Technology, 43(2014),1 ,pp.82-87
  10. Liu L.Y. , et al., Heat transfer performance of fresh-air handing device using earth energy, Journal of central south university of technology, 16(2009), S1,pp.259-264
  11. Paepe, M.D. , et al.,Earth-air heat exchangers in the Belgian climate: analysis of the potential with a 3D modeling technique. Proceedings of the 22nd Annual AIVC Conference, Bath, United Kingdom, 2001
  12. Mou, L.Q., The calculation and application tunnel wind cooling. China building industry press, Beijing,China,1982
  13. Song, L., Zhu, Y.X., Simulation study on cooling potential of multi-tube earth-air tunnels, HV&AC, 39(2009),9 ,pp.66-69
  14. Wu, H.J., et al.,Numerical simulation of flow and cooling performance of the earth-air heat exchangers. Acta Energiae Solaris Sinica, 27(2006), 1,pp.78-82
  15. Zhang, X.M. , et al., Numerical simulation and analysis about characteristics of heat transfer between underground tunnel and air in winter. Journal of Shenyang Jianzhu University ( Natural Science), 31(2015), 1,pp.124-132
  16. Jacovides, C.P., Mihalakakou, G.,An underground pipe system as an energy source for cooling/heating purposes, Renewable Energy, 6(1995),8 ,pp.893-900
  17. Xia C.H. , et al., Numerical simulation and analysis of underground duct system, Acta Energiae Solaris Sinica, 27(2006),9 , pp.923-928
  18. Zhao R.Y. , et al., Air Conditioning (Fourth Edition), China Building Industry press,2009.
  19. Zhang X.M. , et al., Heat Transfer (Sixth Edition), China Building Industry Press,2014.
  20. Darkwa, J. , et al., Theoretical and practical evaluation of an earth-tube (E-tube) ventilation system,Energy and Buildings, 43(2011), 2,pp.728-736
  21. Mathur, A. , et al., Comparative study of straight and spiral earth air tunnel heat exchanger system operated in cooling and heating modes, Renewable Energy , 108(2017), pp.474-487
  22. Belatrache,D. , et al., Numerical analysis of earth air heat exchangers at operating conditions in arid climates,International Journal of Hydrogen Energy,2016,42,13,pp.8898-8904
  23. Mongkon, S. , et al., Cooling performance and condensation evaluation of horizontal earthtube system for the tropical greenhouse, Energy and Buildings, 66(2013), pp.104-111

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