Design of an Earth-Air Heat Exchanger System for Space Cooling in Climatic Conditions of Nagpur, India

  • Digvijay Ronge
  • Divyesh Ubale
Conference paper


Earth Air Heat Exchanger (EAHE) system is a Passive Cooling technique which uses earth’s potential to maintain a constant temperature throughout the year at certain depths as a source or sink to cool air during summer and vice versa in winter for space air-conditioning application. EAHE systems are best suited in hot and dry climatic conditions because EAHE systems in humid areas face challenges of condensation of water and contamination by microorganisms. Commercial Heating, Ventilation, and Air Conditioning (HVAC) systems are now established everywhere because there are standard methods for their calculations and manpower for installation. EAHE systems, being in their early stages lack such standards, installations guidelines and hence have less commercialization. One such effort has been made in this paper to design an EAHE system for a classroom in a hot and dry climate of Nagpur City, India. Heat exchanger calculations were made based on the NTU method, air flow rates were referred from ASHRAE ventilation standard and a piping layout is created so as to use the designed system for commercial purposes.


Earth-air heat exchanger Earth’s undisturbed temperature NTU Nusselt number 


  1. 1.
    Ubale DP (2017) Heat transfer enhancement in heat exchanger using twisted-tape inserts: a review. International Conference on Ideas, Impact and Innovation in Mechanical Engineering (IJRITCC) 5(6):425–428Google Scholar
  2. 2.
    Ubale D, Ubale PV (2017) A critical review on flow, heat transfer characteristics and correlations of helically coiled heat exchanger. Int J Adv Eng Res Dev 4(9):519–524Google Scholar
  3. 3.
    Ubale D, Ubale PV (2018) Heat transfer and numerical analysis in microchannel heat exchanger using nanofluids: a review. Int J Sci Res Sci Eng Technol (IJSRSET)., Print ISSN: 2395-1990, Online ISSN: 2394-4099 4(9):198–203Google Scholar
  4. 4.
    Ubale DP, Umale SS, Gulhane NP (2018) Experimental investigation of condensation heat transfer in vertical shell and helical coil heat exchanger. Adv Sci Eng Med 10(3):398–402CrossRefGoogle Scholar
  5. 5.
    Ingersoll LR, Plass HJ (1948) Theory of the ground pipe source for the heat pump. ASHVE Trans 54:339–348Google Scholar
  6. 6.
    Carslaw HS, Jaeger JC (1959) Conduction of heat in solids. Oxford University Press, OxfordzbMATHGoogle Scholar
  7. 7.
    Ronge D, Maurya RS Experimental and numerical investigation of soil under different constant heat flux conditions. (ICTF-2017), 3–5 July 2017, Phuket (Thailand), pp 75–83, ISBN No. 978-605-9546-05-8Google Scholar
  8. 8.
    De Paepe M, Janssens A (2003) Thermo-hydraulic design of earth-air heat exchangers. Energ Buildings 35(4):389–397CrossRefGoogle Scholar
  9. 9.
    Al-Ajmi F, Loveday DL, Hanby VI (2006) The cooling potential of earth-air heat exchangers for domestic buildings in a desert climate. Build Environ 41(3):235–244CrossRefGoogle Scholar
  10. 10.
    Mihalakakou G, Santamouris M, Asimakopoulos D, Argiriou A (1995) On the ground temperature below buildings. Sol Energy 55(5):355–362CrossRefGoogle Scholar
  11. 11.
    Kusuda T, Piet O, Bean JW (1983) Annual variation of temperature field and heat transfer under the heated ground surface: slab-on-grade floor heat loss calculations, National Bureau of Standards, building science series, p 156Google Scholar
  12. 12.
    Misra R, Bansal V, Das Agrawal G, Mathur J, Asari TK (2013) CFD analysis based parametric study of derating factor for earth air tunnel heat exchanger. Appl Energy 103:266–277CrossRefGoogle Scholar
  13. 13.
    Bisoniya TS, Kumar A, Baradar P (2013) Experimental and analytical studies of the earth–air heat exchanger (EAHE) systems in India: a review. Renew Sust Energ Rev 19:238–246CrossRefGoogle Scholar
  14. 14.
    Bisoniya TS, Kumar A, Baradar P (2014) Cooling potential evaluation of earth–air heat exchanger system for the summer season. Int J Eng Tech Res 2(4):309–316Google Scholar
  15. 15.
    Mathur A, Surana AK, Verma P, Mathur S, Agrawal GD, Mathur J (2015) Investigation of soil thermal saturation and recovery under intermittent and continuous operation of EATHE. Energ Buildings 109:291–303CrossRefGoogle Scholar
  16. 16.
    Campbell GS, Jungbauer JD Jr, Bidlake WR, Hungerford RD (1994) Predicting the effect of temperature on soil thermal conductivity. Soil Sci 158(5):307–313CrossRefGoogle Scholar
  17. 17.
    Pramanik P, Aggarwal P (2013) Comparison of thermal properties of three texturally different soils under two compaction levels. Afr J Agric Res 8(28):3679–3687CrossRefGoogle Scholar
  18. 18.
    ASHRAE climatic design conditions 2009/2013.
  19. 19.
    ASHRAE standard 62.2-2013 Ventilation for Acceptable IOQGoogle Scholar

Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  • Digvijay Ronge
    • 1
  • Divyesh Ubale
    • 1
  1. 1.Sardar Patel College of EngineeringMumbaiIndia

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