Economic Benefit Evaluation of Energy Pile‑based Bridge Deck Snow Melting System

CAO Xuan; LIU Jiaxin; KONG Gangqiang; HAN Chanjuan

doi:10.13409/j.cnki.jdpme.20230927022

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Economic Benefit Evaluation of Energy Pile‑based Bridge Deck Snow Melting System

更新时间：2024-09-07

- Economic Benefit Evaluation of Energy Pile‑based Bridge Deck Snow Melting System
- Journal of Disaster Prevention and Mitigation Engineering Vol. 44, Issue 4, Pages: 881-892(2024)
- 作者机构：
  
  1.上海交通大学船舶海洋与建筑工程学院，上海 200240
  2.上海市公共建筑与基础设施数字化运维重点实验室，上海 200240
  3.河海大学岩土力学与堤坝工程教育部重点实验室，江苏南京 210098
- 作者简介：
- 基金信息：
- DOI：10.13409/j.cnki.jdpme.20230927022
  CLC： TK529
- Received：15 October 2023，
  
  Revised：2023-12-15，
  
  Published：30 August 2024
- 稿件说明：
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曹璇,刘佳欣,孔纲强等.基于能源桩的桥面融雪系统经济效益评估[J].防灾减灾工程学报,2024,44(04):881-892.

CAO Xuan,LIU Jiaxin,KONG Gangqiang,et al.Economic Benefit Evaluation of Energy Pile‑based Bridge Deck Snow Melting System[J].Journal of Disaster Prevention and Mitigation Engineering,2024,44(04):881-892.
曹璇,刘佳欣,孔纲强等.基于能源桩的桥面融雪系统经济效益评估[J].防灾减灾工程学报,2024,44(04):881-892. DOI： 10.13409/j.cnki.jdpme.20230927022.

CAO Xuan,LIU Jiaxin,KONG Gangqiang,et al.Economic Benefit Evaluation of Energy Pile‑based Bridge Deck Snow Melting System[J].Journal of Disaster Prevention and Mitigation Engineering,2024,44(04):881-892. DOI： 10.13409/j.cnki.jdpme.20230927022.

摘要

基于能源桩的桥面融雪系统，利用清洁绿色的地热能为道路融雪除冰，从而降低碳排放，与我国“双碳”战略发展趋势相契合。在技术落地过程中，实现优化设计从而降低成本至关重要。通过数值模拟方法，研究了该系统在中国不同气候区的产热量，并计算了三级融雪目标下桥面融雪所需热量。同时，建立了成本测算模型，分析了各气候区代表城市最具经济效益的能源桩融雪方案，并基于该模型开发了计算软件，以简化应用流程。研究结果表明：在短期运行中，桥面建安费和热泵费用是对成本影响最大的因素。然而，在长期运行中电价成为最关键因素；当热通量需求变化时，电力融雪系统的总成本增量约为能源桩融雪系统的2倍；在恶劣气候环境和更严苛的融雪目标下，能源桩融雪系统的相对节省曲线更陡峭，优势显著；此外，国家政策的积极支持能弥补该系统初始投资成本高的短板，增强其市场竞争力。

Abstract

The bridge deck snow melting system based on energy piles utilizes clean and green geothermal 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 implementation

design optimization is crucial for cost reduction. Through numerical simulation methods

the paper studied the heat production of the system in different climate zones in China and calculated 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 energy 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 initial investment cost of this system

enhancing its market competitiveness.

关键词

Keywords

references

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