Fluent Simulation & Analysis of Earth Heat Exchanger with Air as a Cooling Medium

Year : 2024 | Volume :11 | Issue : 01 | Page : 18-26
By

Sanjeev Patel

Aditya Narayan Bhatt

  1. Student Mechanical Engineering, Sage University., Bhopal Madhya Pradesh India
  2. Professor Mechanical Engineering, Sage University., Bhopal Madhya Pradesh India

Abstract

Because of the temperatures differential between the environment and the subsurface, an Earth Air Tube Heat Exchanger (EATHE) uses the thermal energy of the ground for air conditioners in the winter and air cooling in the summer. Everyone can lower the amount of energy needed for space heating or cooling with the aid of EATHE. However, it is challenging to create precise energy simulations and designs for calculating surface heat convection as because there aren’t many techniques available. The initial research on EATHE was conducted as an independent study. But now software simulation is used for the measurement of heat transfer. It necessitates a sophisticated system that optimizes a number of parameters, including the diameter, air flow rate depth, tube length, and condensation, all while taking into account other factors. For simulation and modeling, ANSYS software will be utilized. Computational Fluid Dynamics (CFD Fluent) workbench will be used to simulate the 45-meter-long, 0.004-meter-thick, and 0.08-meter-diameter pipe. Air velocity is measured at 1 m/s and the pipe is 5 m below the surface of the earth. The temperature value was considered for the inlet for a day from June (2016) to May (2017) according to the climate of Bhopal, M.P. which has been declared by the government of Madhya Pradesh. The effect of heat transpiration the magnitude to different parameters of the design can be analyzed using the CFD model, and the parameters that were found to be influential were noted. To determine the statistical connections between the parameters specified in the design and the local heat convection rate, a large number of CFD simulations may be run based on the actual situations. The rate of heat transfer, mid-temperature, and outlet temperature are likely to change between the two seasons at a faster speed.

Keywords: EATHE, heat convection, temperature, numerical simulation, CFD fluent

[This article belongs to Journal of Refrigeration, Air conditioning, Heating and ventilation(jorachv)]

How to cite this article: Sanjeev Patel, Aditya Narayan Bhatt. Fluent Simulation & Analysis of Earth Heat Exchanger with Air as a Cooling Medium. Journal of Refrigeration, Air conditioning, Heating and ventilation. 2024; 11(01):18-26.
How to cite this URL: Sanjeev Patel, Aditya Narayan Bhatt. Fluent Simulation & Analysis of Earth Heat Exchanger with Air as a Cooling Medium. Journal of Refrigeration, Air conditioning, Heating and ventilation. 2024; 11(01):18-26. Available from: https://journals.stmjournals.com/jorachv/article=2024/view=146162

References

  1. Capozza, A., Zarrella, A., & De Carli, M. (2015). Analysis of vertical ground heat exchangers: the new CaRM tool. Energy Procedia, 81, 288-297.
  2. Manjul, R. R., & Bartaria, V. N. (2016). Earth air heat exchanger performance in summer cooling for various supply air conditions–a review. International Journal of Engineering Trends and Technology, 35(8), 387-390.
  3. Grosso, M., & Chiesa, G. (2015). Horizontal earth-to-air heat exchanger in Imola, Italy. A 30-month-long monitoring campaign. Energy Procedia, 78, 73-78.
  4. Popovici, C. G., Mateescu, T., Luciu, R., & Cazacu, I. (2017). Innovative solutions for geothermal heat exchangers. Energy Procedia, 112, 434-441.
  5. Patel, S., & Kumar, A. (2018). Cooling and Heating Effect of Geothermal Energy and Its Thermal Analysis Using Air as a Flow Medium. International Journal of Computer Aided Manufacturing, 4(1), 18-32.
  6. Kumar, D., & Rathore, D. S. (2020). CFD Simulation on Ground Tube Heat Exchanger using Copper and Aluminum as Tube Material. International Journal of IC Engines and Gas Turbines, 6(2), 49-74.
  7. Jakhar, S., Soni, M. S., & Gakkhar, N. (2016). Performance analysis of earth water heat exchanger for concentrating photovoltaic cooling. Energy Procedia, 90, 145-153.
  8. Sehli, A., Hasni, A., & Tamali, M. (2012). The potential of earth-air heat exchangers for low energy cooling of buildings in South Algeria. Energy Procedia, 18, 496-506.
  9. Madane, V., Vedpathak, M., & Nadar, M. D. International Journal Of Engineering Sciences & Research Technology Thermal Analysis Of Earth Air Heat Exchanger Using Cfd.
  10. Haq, I., & Bux, S. (2021). Thermal Effect of Geothermal Energy and its Analysis using Air as a Flow Medium. Research Journal of Engineering Technology and Medical Sciences (ISSN: 2582-6212), 4(02).
  11. Belatrache, D., Bentouba, S., & Bourouis, M. (2017). Numerical analysis of earth air heat exchangers at operating conditions in arid climates. International journal of hydrogen energy, 42(13), 8898-8904.
  12. Sharan, G., & Jadhav, R. (2003). Performance of single pass earth-tube heat exchanger: An experimental study. Journal of Agricultural Engineering, 40(1), 1-8.
  13. Bansal, V., Misra, R., Agrawal, G. D., & Mathur, J. (2012). Performance evaluation and economic analysis of integrated earth–air–tunnel heat exchanger–evaporative cooling system. Energy and Buildings, 55, 102-108.
  14. Ascione, F., Bellia, L., & Minichiello, F. (2011). Earth-to-air heat exchangers for Italian climates. Renewable energy, 36(8), 2177-2188.
  15. Selamat, S., Miyara, A., & Kariya, K. (2015). Analysis of short time period of operation of horizontal ground heat exchangers. Resources, 4(3), 507-523.
  16. Niu, F., Yu, Y., Yu, D., & Li, H. (2015). Heat and mass transfer performance analysis and cooling capacity prediction of earth to air heat exchanger. Applied Energy, 137, 211-221.
  17. Li, H., Yu, Y., Niu, F., Shafik, M., & Chen, B. (2014). Performance of a coupled cooling system with earth-to-air heat exchanger and solar chimney. Renewable energy, 62, 468-477.
  18. Peretti, C., Zarrella, A., De Carli, M., & Zecchin, R. (2013). The design and environmental evaluation of earth-to-air heat exchangers (EAHE). A literature review. Renewable and Sustainable Energy Reviews, 28, 107-116.
  19. Chaturvedi, A. K., & Bartaria, V. N. (2015). Performance of earth tube heat exchanger cooling of air—a review. Int J Mech Eng Robotics Res, 4(1), 378-382.
  20. Athienitis, A. K., Roy, M., & Zhao, M. (2005, August). Design and simulation of a hybrid ventilation system with earth-air heat exchanger. In Ninth International IBPSA Conference, Building Simulation 2005, Montreal, Canada, 1, 27-32, Aug. 15 (Vol. 18, p. 2005).
  21. Bansal, V., Misra, R., Agarwal, G. D., & Mathur, J. (2013). ‘Derating Factor’new concept for evaluating thermal performance of earth air tunnel heat exchanger: A transient CFD analysis. Applied Energy, 102, 418-426.
  22. Khalajzadeh, V., Heidarinejad, G., & Srebric, J. (2011). Parameters optimization of a vertical ground heat exchanger based on response surface methodology. Energy and Buildings, 43(6), 1288-1294.
  23. Chel, A., & Tiwari, G. N. (2010). Stand-alone photovoltaic (PV) integrated with earth to air heat exchanger (EAHE) for space heating/cooling of adobe house in New Delhi (India). Energy Conversion and Management, 51(3), 393-409.
  24. Abbaspour-Fard, M. H., Gholami, A., & Khojastehpour, M. (2011). Evaluation of an earth-to-air heat exchanger for the north-east of Iran with semi-arid climate. International Journal of Green Energy, 8(4), 499-510.
  25. Woodson, T., Coulibaly, Y., & Traoré, E. S. (2012). Earth-air heat exchangers for passive air conditioning: Case study Burkina Faso. Journal of Construction in Developing Countries, 17(1), 21-32.
  26. Mongkon, S., Thepa, S., Namprakai, P., & Pratinthong, N. (2013). Cooling performance and condensation evaluation of horizontal earth tube system for the tropical greenhouse. Energy and Buildings, 66, 104-111.
  27. Mogharreb, M. M., Abbaspour-Fard, M. H., Goldani, M., & Emadi, B. (2014). The effect of greenhouse vegetation coverage and area on the performance of an earth-to-air heat exchanger for heating and cooling modes. International Journal of Sustainable Engineering, 7(3), 245-252.
  28. Cui, P., Man, Y., & Fang, Z. (2015). Geothermal heat pumps. Handbook of Clean Energy Systems, 1-22.
  29. Bisoniya, T. S., Kumar, A., & Baredar, P. (2015). Energy metrics of earth–air heat exchanger system for hot and dry climatic conditions of India. Energy and Buildings, 86, 214-221.
  30. Rodrigues, L. T., & Gillott, M. (2015). A novel low-carbon space conditioning system incorporating phase-change materials and earth–air heat exchangers. International Journal of Low-Carbon Technologies, 10(3), 176-187.

 

 

Regular Issue Subscription Review Article
Volume 11
Issue 01
Received April 4, 2024
Accepted April 13, 2024
Published May 15, 2024
Views: 48