<p>Hydronic pavement systems (HPS) are advancing snow melting technology, where a heated fluid is circulated through pipes embedded within the pavement structure to melt the accumulated snow from the road surface. This study aims to evaluate the thermal performance of HPS under varying design configurations and to develop an optimized HPS for efficient snow melting. Using ANSYS Fluent, the present study developed a 2-D transient model that includes conduction, convection, and radiation effects. The model was validated and subsequently used to analyze the influence of circulating fluid temperature (40–70&#xa0;°C), pipe depth (60–120&#xa0;mm), pipe diameter (12–30&#xa0;mm), pipe spacing (100–160&#xa0;mm), and ice thickness (8–24&#xa0;mm) on snow melting time and energy consumption of HPS. Study revealed that snow melting time decreased from 2.61 to 1.72&#xa0;h when circulating fluid temperature increased from 40&#xa0; to 70&#xa0;°C. However, this temperature increase resulted in a higher energy consumption from 674 to 846&#xa0;kJ. Similarly, increased pipe depth from 60 to 120&#xa0;mm and pipe spacing from 100 to 160&#xa0;mm led to an increase in snow melting time from 2.18 to 3.29&#xa0;h and 1.87&#xa0;h to 2.82&#xa0;h, respectively. The optimized circulating fluid temperature to achieve a balance between snow melting efficiency and energy consumption has been determined to be 50&#xa0;°C. Economic assessment based on real-traffic data from Abdullah Bridge, Srinagar, India. Estimated a potential daily saving of approximately Rupee 15,539. The present findings contribute to the practical design and optimization of HPS for roads, and bridges, offering insights into energy-efficient and cost-effective snow melting strategies for cold-region infrastructure.</p>

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Thermal analysis and energy assessment of hydronic pavement for efficient snow melting system

  • Pratik Jaiswal,
  • Umesh Chandra Sahoo,
  • Anush K. Chandrappa

摘要

Hydronic pavement systems (HPS) are advancing snow melting technology, where a heated fluid is circulated through pipes embedded within the pavement structure to melt the accumulated snow from the road surface. This study aims to evaluate the thermal performance of HPS under varying design configurations and to develop an optimized HPS for efficient snow melting. Using ANSYS Fluent, the present study developed a 2-D transient model that includes conduction, convection, and radiation effects. The model was validated and subsequently used to analyze the influence of circulating fluid temperature (40–70 °C), pipe depth (60–120 mm), pipe diameter (12–30 mm), pipe spacing (100–160 mm), and ice thickness (8–24 mm) on snow melting time and energy consumption of HPS. Study revealed that snow melting time decreased from 2.61 to 1.72 h when circulating fluid temperature increased from 40  to 70 °C. However, this temperature increase resulted in a higher energy consumption from 674 to 846 kJ. Similarly, increased pipe depth from 60 to 120 mm and pipe spacing from 100 to 160 mm led to an increase in snow melting time from 2.18 to 3.29 h and 1.87 h to 2.82 h, respectively. The optimized circulating fluid temperature to achieve a balance between snow melting efficiency and energy consumption has been determined to be 50 °C. Economic assessment based on real-traffic data from Abdullah Bridge, Srinagar, India. Estimated a potential daily saving of approximately Rupee 15,539. The present findings contribute to the practical design and optimization of HPS for roads, and bridges, offering insights into energy-efficient and cost-effective snow melting strategies for cold-region infrastructure.