研究目的
To consider the possible technical, economic and social benefits of PV integration in railroads and powerlines, including shared use of land and infrastructure, and its application in permafrost regions for embankment stabilization.
研究成果
Shared use of land, infrastructure, and maintenance can significantly reduce the cost of solar energy and accelerate investment returns for linear infrastructural projects like railroads. PV integration is feasible for DC-powered railroads and can enhance embankment stabilization in permafrost regions through active cooling systems. The approach is expandable to other linear structures and could improve disaster resilience and renewable energy penetration.
研究不足
The study is conceptual and lacks empirical data; it relies on theoretical models and existing literature. Limitations include the complexity of implementing high-voltage PV systems, certification issues for voltages over 1 kV, and the need for further development of balance of system equipment. The permafrost model does not account for terrain variations and assumes constant thermal properties.
1：Experimental Design and Method Selection:
The study involves a conceptual analysis and evaluation of integrating photovoltaic (PV) systems into linear infrastructural objects such as railroads and powerlines. It includes theoretical modeling for permafrost stabilization using PV-powered heat pumps, based on climatic factors and soil properties.
2：Sample Selection and Data Sources:
Data on land use, energy consumption, and costs are sourced from references such as NREL reports, Eurostat, and other published literature. Specific examples include Swiss highways, Belgian railroad tunnels, and Indian railroad cars.
3：List of Experimental Equipment and Materials:
Not explicitly detailed, but implies the use of PV modules (e.g., crystalline, thin-film), heat pumps, thermosyphons, and ventilation systems for experimental or theoretical setups.
4：Experimental Procedures and Operational Workflow:
The methodology includes calculating energy generation potentials, economic evaluations, and thermal modeling for permafrost regions. Steps involve assessing PV installation options (e.g., on slopes, between rails), voltage considerations for DC systems, and simulations of soil temperature changes.
5：Data Analysis Methods:
Analysis involves comparing HVAC power-line performance with PV generation potentials, evaluating cost savings from shared infrastructure, and using mathematical models for temperature regimes in permafrost, with assumptions on efficiency and coefficients of performance.
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