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Lighting environment design evaluation with digital workflow: A life cycle framework for integrating carbon and cost reduction strategies in tunnels
Tunnelling and Underground Space Technology ( IF 6.7 ) Pub Date : 2025-01-08 , DOI: 10.1016/j.tust.2025.106363
Liankun Xu, Hehua Zhu, Yi Shen, Jiaxin Ling, Shouzhong Feng

In the pursuit of lower carbon footprints on a global scale, tunnel lighting design has become a critical issue, balancing safety, cost-efficiency, and environmental impact. Under such circumstances, tunnel lighting design must integrate multiple considerations, including lighting intensity, cost efficiency, and carbon emissions, while catering to the specific requirements of different project lifecycle stages, such as the construction phase and the maintenance phase. However, conventional tunnel lighting calculation methods often fall short in adequately addressing these factors. To address this problem, this paper introduces a novel approach that incorporates a comprehensive framework for evaluating lighting performance, carbon emissions, and cost efficiency throughout the tunnel’s lifecycle with digital workflow. The carbon emission and cost calculation methods of tunnel lighting environment (TLE) are introduced in detail. By integrating economic costs and carbon emissions into a unified objective function, and incorporating safety constraints, a comprehensive multi-dimensional evaluation model for the entire life cycle of TLE is developed. The proposed life cycle assessment method for different TLE schemes is applied and validated in a practical tunnel engineering project, and results indicate that high-reflectivity sidewall materials such as enameled steel plates can be used for the reduction of carbon emissions. Lighting fixtures with high luminous efficacy will significantly increase the comprehensive evaluation value of the TLE. The proposed evaluation approach demonstrates significant effectiveness in addressing the complexities of tunnel lighting design, and not only enhances the sustainability of the lighting systems but also ensures a balanced consideration of operational efficiency and long-term environmental impact.

中文翻译:


使用数字工作流程进行照明环境设计评估:在隧道中整合碳和成本降低策略的生命周期框架



在全球范围内追求更低的碳足迹,隧道照明设计已成为一个关键问题,需要平衡安全性、成本效益和环境影响。在这种情况下,隧道照明设计必须综合考虑多种因素,包括照明强度、成本效益和碳排放,同时满足不同项目生命周期阶段(如施工阶段和维护阶段)的具体要求。然而,传统的隧道照明计算方法往往无法充分解决这些因素。为了解决这个问题,本文介绍了一种新颖的方法,该方法结合了一个综合框架,用于通过数字工作流程在整个隧道生命周期中评估照明性能、碳排放和成本效率。详细介绍了隧道照明环境 (TLE) 的碳排放和成本计算方法。通过将经济成本和碳排放整合到一个统一的目标函数中,并结合安全约束,开发了 TLE 全生命周期的综合多维评价模型。所提出的针对不同 TLE 方案的生命周期评估方法在实际隧道工程项目中得到应用和验证,结果表明,高反射率侧壁材料(如搪瓷钢板)可用于减少碳排放。具有高光效的照明灯具将显著提高 TLE 的综合评价值。 拟议的评估方法在解决隧道照明设计的复杂性方面表现出显著的有效性,不仅增强了照明系统的可持续性,还确保了运营效率和长期环境影响的平衡考虑。
更新日期:2025-01-08
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