Investigation of Roadway Anti-Icing Without Auxiliary Heat Using Hydronic Heated Pavements Coupled with Borehole Thermal Energy Storage

Sangwoo Park, Annas Fiaz Abbasi, Hizb Ullah, Wonjae Ha and Seokjae Lee ()
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Sangwoo Park: Department of Civil Engineering and Environmental Sciences, Korea Military Academy, Seoul 01805, Republic of Korea
Annas Fiaz Abbasi: Department of Civil and Environmental Engineering, Kunsan National University, Gunsan-si 54150, Republic of Korea
Hizb Ullah: Department of Civil and Environmental Engineering, Kunsan National University, Gunsan-si 54150, Republic of Korea
Wonjae Ha: Department of Civil and Environmental Engineering, Kunsan National University, Gunsan-si 54150, Republic of Korea
Seokjae Lee: Department of Civil Engineering, Kunsan National University, Gunsan-si 54150, Republic of Korea

Energies, 2025, vol. 18, issue 20, 1-20

Abstract: Roadway anti-icing requires low-carbon alternatives to chloride salts and electric heating. This study evaluated a seasonal thermal energy storage system that couples a geothermal hydronic heated pavement (HHPS-G) with borehole thermal energy storage (BTES), operated without auxiliary heat. A coupled transient HHPS-G–BTES model was developed and validated against independent experimental data. A continuous cycle was then simulated, consisting of three months of summer pavement heat harvesting and BTES, followed by three months of winter heat discharge. A parametric analysis varied borehole depth (10, 20, and 40 m) and number of units (1, 2, and 4). Results indicated that depth is consistently more effective than unit number. Deeper fields produced larger summer pavement surface cooling with less long-term drift and yielded more persistent winter anti-icing performance. The 40 m 4-unit case lowered the end-of-summer surface temperature by 3.8 °C relative to the no-operation case and kept the surface at or above 0 °C throughout winter. In contrast, the 10 m–1-unit case was near 0 °C by late winter. A depth-first BTES design, supplemented by spacing or edge placement to limit interference, showed practical potential for anti-icing without auxiliary heat.

Keywords: geothermal hydronic heated pavement (HHPS-G); borehole thermal energy storage (BTES); seasonal thermal energy storage system; roadway anti-icing (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2025
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