Mahmoud Alzoubi

Ph.D., P.Eng., Assistant Professor

Hybrid artificial ground freezing as a sustainable solution for containing hazardous-waste in critical environmental projects


Journal article


Mahmoud Alzoubi, Sébastien Poncet, Agus Sasmito
Cold Regions Science and Technology, vol. 192, 2021

DOI
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APA   Click to copy
Alzoubi, M., Poncet, S., & Sasmito, A. (2021). Hybrid artificial ground freezing as a sustainable solution for containing hazardous-waste in critical environmental projects. Cold Regions Science and Technology, 192.


Chicago/Turabian   Click to copy
Alzoubi, Mahmoud, Sébastien Poncet, and Agus Sasmito. “Hybrid Artificial Ground Freezing as a Sustainable Solution for Containing Hazardous-Waste in Critical Environmental Projects.” Cold Regions Science and Technology 192 (2021).


MLA   Click to copy
Alzoubi, Mahmoud, et al. “Hybrid Artificial Ground Freezing as a Sustainable Solution for Containing Hazardous-Waste in Critical Environmental Projects.” Cold Regions Science and Technology, vol. 192, 2021.


BibTeX   Click to copy

@article{mahmoud2021a,
  title = {Hybrid artificial ground freezing as a sustainable solution for containing hazardous-waste in critical environmental projects},
  year = {2021},
  journal = {Cold Regions Science and Technology},
  volume = {192},
  author = {Alzoubi, Mahmoud and Poncet, Sébastien and Sasmito, Agus}
}

Abstract

Permafrost degradation represents a severe challenge for mining operations in Northern Canada. The foundations of the infrastructures rely on the steadiness of the permafrost. Accordingly, changes in permafrost durability may contribute to destructive failures if not appropriately preserved. Thus, it is of the greatest interest to maintain the integrity of permafrost in the affected areas. One of the safest methods to sustain permafrost is by employing artificial ground freezing (AGF). The associated AGF system, in contrast, is usually designed to operate continuously to sustain permafrost stability. This non-stop mode of operation requires intensive energy consumption. Therefore, an innovative, reliable operational technique is crucial to ensure permafrost sustainability. This paper presents and illustrates a novel concept of a ‘renewable energy’-based AGF system, with zero human-generated energy input, comprising a closed-loop thermosyphon coupled with a cold-energy storage tank that could be filled with a phase-change material (PCM). A mathematical model has been derived, validated, and exploited to simulate the AGF under various operating and design parameters. The results suggest that the employment of the coupled system of closed-loop thermosyphon and cold-energy storage unit reduces overall power consumption while maintaining the permafrost's thickness, notably during the summer.