TY - JOUR
T1 - Development of snow-melting system utilizing LHTES for black-ice and snow removal on roads
AU - Hyun, Su Woong
AU - Shin, Dong Ho
N1 - Publisher Copyright:
© 2024 Elsevier Ltd
PY - 2024/11/20
Y1 - 2024/11/20
N2 - An efficient snow-removal system was developed to improve winter safety for drivers. This system incorporates a latent-heat thermal energy storage (LHTES) system utilizing solar collectors and phase-change material (PCM). It demonstrated superior performance compared to sensible-heat thermal energy storage in terms of energy capacity, heat transfer rate, and charge/discharge efficiency. This study presents a demonstration application of a road snow-melting system employing LHTES. The system's flow rate, integrating LHTES for road snow removal, was optimized through numerical and experimental analyses. The snow-removal system includes a solar energy collector, a pavement layer with embedded LHTES, and a concrete pavement (CP). The results showed that at a flow rate of 6 L/min, the system stored 235 MJ of thermal energy by increasing the PCM temperature from 313 K to 343 K during an 18 h charging process. The snow-melting effectiveness was experimentally validated; the CP surface temperature increased from 268 K to 288 K in an ambient temperature of 248 K, effecting in the melting of 10 mm-thick snow. A total of 62.1 MJ of heat was transferred from the LHTES to the CP. Field tests confirmed that there was no snow accumulation on the surface of the CP where the heat pipes were embedded.
AB - An efficient snow-removal system was developed to improve winter safety for drivers. This system incorporates a latent-heat thermal energy storage (LHTES) system utilizing solar collectors and phase-change material (PCM). It demonstrated superior performance compared to sensible-heat thermal energy storage in terms of energy capacity, heat transfer rate, and charge/discharge efficiency. This study presents a demonstration application of a road snow-melting system employing LHTES. The system's flow rate, integrating LHTES for road snow removal, was optimized through numerical and experimental analyses. The snow-removal system includes a solar energy collector, a pavement layer with embedded LHTES, and a concrete pavement (CP). The results showed that at a flow rate of 6 L/min, the system stored 235 MJ of thermal energy by increasing the PCM temperature from 313 K to 343 K during an 18 h charging process. The snow-melting effectiveness was experimentally validated; the CP surface temperature increased from 268 K to 288 K in an ambient temperature of 248 K, effecting in the melting of 10 mm-thick snow. A total of 62.1 MJ of heat was transferred from the LHTES to the CP. Field tests confirmed that there was no snow accumulation on the surface of the CP where the heat pipes were embedded.
KW - Black ice
KW - field demonstration
KW - latent-heat thermal energy storage
KW - phase change material
KW - snow-melting system
KW - solar energy collector
UR - http://www.scopus.com/inward/record.url?scp=85206822536&partnerID=8YFLogxK
U2 - 10.1016/j.est.2024.114202
DO - 10.1016/j.est.2024.114202
M3 - Article
AN - SCOPUS:85206822536
SN - 2352-152X
VL - 102
JO - Journal of Energy Storage
JF - Journal of Energy Storage
M1 - 114202
ER -