Field test study on thermal performance of a novel embankment using solar refrigeration technology

Zhaohui, S.; Liua, J.; Youa, T.; Rena, Z.; Chang, D.; Fangc, J.; Vladislav, I.

Авторы: Zhaohui Suna, Liua Jiankun, Youa Tian, Rena Zhifeng, Chang Dan, Fangc Jianhong, Vladislav Isaev
Журнал: Renewable Energy
Год издания: 2024
Издательство: Pergamon Press Ltd.
Местоположение издательства: United Kingdom
Аннотация: The embankment construction in permafrost regions affects the energy exchange process between the original ground and the surrounding environment, accelerates the degradation of the underlying permafrost layer, and endangers the stability of the embankment. In order to prevent permafrost degradation, a solar air conditioning system (SACS) based on solar refrigeration technology was proposed. In this study, a field test of cooling embankment was carried out in permafrost regions, and the cooling performance of the new technology was analyzed. The SACS shows good coolingperformance, with a horizontal influence range of about 1.77 ~ 2.28 m and a vertical influence depth of more than 3 m. By active cooling, the temperature of the permafrost layer beneath the embankment decreased significantly, and the permafrost table rose by about 0.3 m. In addition, the influence mechanism of complex environmental factors on the cooling performance of the SACS was revealed by correlation analysis and machine learning methods. Compared with existing technologies, solar refrigeration technology achieves active refrigeration in the whole season and presents a significantprice advantage. The research results are helpful to promote the application of solar refrigeration technology in transportation geotechnics and provide a new approach for actively cooling embankments.
Добавил в систему: Исаев Владислав Сергеевич

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