Economic Benefit Evaluation of Energy Pile-based Bridge Deck Snow Melting System
The bridge deck snow melting system based on energy piles utilizes clean and green geother-mal energy for snow melting and de-icing on roads,thereby reducing carbon emissions,which aligns with China's development direction under the "dual carbon" strategy. In the process of technological im-plementation,design optimization is crucial for cost reduction. Through numerical simulation meth-ods,the paper studied the heat production of the system in different climate zones in China and calcu-lated the heat required for snow melting on bridge decks under three different levels of snow melting targets. Additionally,a cost estimation model was established to analyze the most cost-effective ener-gy pile-based snow melting scheme for representative cities in each climate zone. Based on this model,calculation software was developed to simplify the application process. The results showed that the construction and installation costs of the bridge deck and heat pump costs had the greatest impact on the overall costs in short-term operations. However,in the long run,electricity prices became the most critical factor. With changes in heat flux demand,the total cost increase in electricity-based snow melting system was about twice that of energy pile-based system. In harsh climates and with more stringent snow melting targets,the relative saving curve of the energy pile-based snow melting system was steeper,showing significant advantages. Moreover,national policy support can offset the high ini-tial investment cost of this system,enhancing its market competitiveness.
geotechnical engineeringenergy pilebridge deck snow meltingnumerical simulationcost estimationcalculation software development
万方数据
维普
