INFLUENCE OF GROUNDWATER FILTRATION FLOW ON THE THERMAL EFFICIENCY OF UNDERGROUND HEAT EXCHANGER

Keywords: ground heat exchanger, heat pump, porous media, filtration, numerical simulation

Abstract

To determine the effect of the forced filtration flow of groundwater on the thermal efficiency of a U-tube vertical ground heat exchanger, numerical simulation of the groundwater flow and heat transfer in the ground mass during the operation of this device was carried out. The ground heat exchanger is an element of the heat pump system "ground - water". For numerical studies, the Darcy–Brinkman-Forchheimer model is used, which describes the flow of a fluid in a porous medium. Thermal efficiency is estimated by the amount of heat extracted from the soil massif and by the heat transfer coefficient on the outer surface of the heat exchanger. The influence of the pressure gradient in the soil mass was determined, as well as the influence of the dispersion of soil particles on the dynamics of the filtration movement of groundwater and the thermal efficiency of the heat exchanger.

References 15, figures 11.

References

Basok, B. I., Davydenko, B. V., Lunina, A. A. Numerical model of the temperature conditions of the horizontal ground collector. Journal of Engineering Physics and Thermophysics. 2012. Vol. 85. P. 1114–1126.

Basok, B. I., Davydenko, B. V., Bozhko I. K., Moroz M. V. Non-stationary heat transfer in a horizontal ground heat exchanger. [in Ukrainian], Промышленная теплотехника. 2018, Т. 40. № 4, С. 34–40.

Basok, B. I., Davydenko, B. V., Tkachenko M. V., Nedbailo O. M., Davydenko B. V., Bozhko I. K., Moroz M. V. Three-dimensional model of heat transfer in the system "soil - horizontal soil heat exchanger - coolant", [in Ukrainian], Теплові насоси в Україні, 2019, Vol. №1, с. 22–26.

Bocchino, Elizabeth M. Comparison of Horizontal Ground Source (Geothermal) Heat Pump Layouts for Optimal Performance and Thermal Efficiency (2011). Honors Theses. 942.

Nairen Diao, Qinyun Li, Zhaohong Fang. Heat transfer in ground heat exchangers with groundwater advection. International Journal of Thermal Sciences. 2004. Vol. 43, P. 1203–1211

N. R. Diao, H. Y. Zeng, Z. H. Fang. Improvement in modeling of heat transfer in vertical ground heat exchangers. HVAC&R RESEARCH. 2004. Vol.10, No 4. P. 459–470.

Yujin Nam, Ryozo Ooka, Suckho Hwang. Development of a numerical model to predict heat exchanger rates for a ground –source heat pump system. Energy and Buildings 40 (2008) 2133-2140

Manon Bulté, Thierry Duren, Olivier Bouhon, Estelle Petitclerc, Mathieu Agniel, Alain Dassargues. Numerical Modeling of the Interference of Thermally Unbalanced Aquifer Thermal Energy Storage Systems in Brussels (Belgium). Energies. 2021, 14, 6241. https://doi.org/10.3390/en14196241

Q. C. Yang, J. Liang, L.C. Liu. Numerical model for the capacity evaluation of shallow groundwater heat pumps in Beijing Plain, China. Procedia Environmental Sciences. 2011. 10. P. 881–889. doi: 10.1016/j.proenv.2011.09.141.

Tengfei Cui, Shanshan Cai, Haijin Guo, Ting Huang. Full-scale model to predict borehole fluid temperature with groundwater advection. Conference: International Ground Source Heat Pump Association. 2018. Stockholm. September 18-20. DOI:10.22488/okstate.18.000016

W. Pophillat, et al. Analytical solutions for predicting thermal plumes of groundwater heat pump systems. Renewable Energy (2018), https://doi.org/10.1016/j.renene.2018.07.148

X. B. Chen, P. Yu, S. H. Winoto, H. T. Low. Free convection in a porous wavy cavity based on the Darcy-Brinkman-Forchheimer extended model. Numerical Heat Transfer Applications. 2007. July. P. 1–40. DOI: 10.1080/10407780701301595.

Ahmed M. Jumaa, Ameer S. Dawood, Hekmat Sh. Mustafa. Approximation study of heat transfer for Darcy-Forchheimer - Brinkman model in porous cavity confined between two finite thickness walls. International Journal of Advanced Scientific and Technical Research. 2015. Vol. 2, Issue 5, P. 432–443.

Ghoreishi-Madiseh S. A., Hassani F., Mohammadian A., Radziszewski P. A transient natural convection heat transfer model for geothermal borehole heat exchangers. Journal of Renewable and Sustainable Energy. 2013. № 5. P. 1–15.

Ahmed A. Serageldin, Ali Radwan, Yoshitaka Sakata, Takao Katsura, Katsunori Nagano. The effect of groundwater flow on the thermal performance of a novel borehole heat exchanger for ground source heat pump systems: small scale experiments and numerical simulation. Energies (2020), 13, 1418. doi:10.3390/en13061418


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Published
2022-06-30
How to Cite
Basok, B., Davydenko, B., Pavlenko, A., Novikov, V., & Koshlak, H. (2022). INFLUENCE OF GROUNDWATER FILTRATION FLOW ON THE THERMAL EFFICIENCY OF UNDERGROUND HEAT EXCHANGER. Vidnovliuvana Energetyka, (2(69), 71-80. https://doi.org/10.36296/1819-8058.2022.2(69)852