A Review of Clean Energy Exploitation for Railway Transportation Systems and Its Enlightenment to China

Teng, Jing; Li, Longkai; Jiang, Yajun; Shi, Ruifeng

doi:10.3390/su141710740

Cited by 14 publications

(6 citation statements)

References 48 publications

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“…Also, currently unused space such as service facilities and station rooftops or rolling stock roofs could easily be installed with photovoltaic panels. Given the present technology, this would only be enough to satisfy a small portion of the overall energy needs of these individual elements [41], but this is likely to improve since photovoltaic technological progress has been constant. It is important to mention that in this attributional study, the upstream market consequences of the marginal grid load increases of the full electrification scenarios were not considered; nevertheless, these could be further considered in future consequential LCA studies able to estimate adequate data based on possible grid future requirements.…”

Section: Resultsmentioning

confidence: 99%

Life Cycle Assessment of Current Portuguese Railway and Future Decarbonization Scenarios

Silva

Moura

2023

Sustainability

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Given the current EU decarbonization targets, the railway transport is a key player to boost mobility toward more sustainable transportation, as it is currently the cleanest high-volume mode of locomotion available. However, a study analyzing the life cycle environmental impact of the existing conventional Portuguese railway has never been performed. Aiming to address this research gap, this paper presents an attributional life cycle assessment (LCA) to quantify the environmental impacts of the Portuguese railway infrastructure and rolling stock, using the Douro line case study. Through the LCA methodology, the current setting (using electric and diesel rolling stock) and three scenarios of full-line electrification (considering 2019, 2030, and 2050 electricity mixes) were analyzed for hotspot identification and an outlook on EU-aligned long-term sustainability prospects. In the current scenario, railway operation accounts for 74% of the total carbon footprint, mostly due to the fuel use of diesel trains and the expended electricity of electric train and infrastructure operation. The total electrification of the line and rolling stock can reduce carbon emissions by 38%, 56%, and 63%, if the 2019, 2030, and 2050 electricity mixes are considered, respectively. Further reductions could also be achieved with on-site renewable energy generation and through future low-carbon construction work strategies.

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Section: Resultsmentioning

confidence: 99%

Life Cycle Assessment of Current Portuguese Railway and Future Decarbonization Scenarios

Silva

Moura

2023

Sustainability

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“…FCC stands for "facility capital cost," TCC for "transportation capital cost," and for "network operating period," which the capital charge component affects 9 . To account for all connected expenses for the network, the facility operating cost (FOC) and transportation operation cost (TOC) are included to the calculation.…”

Section: Model Buildingmentioning

confidence: 99%

Sustainable energy ecosystems and renewable energy airport hydrogen storage systems under peak carbon and carbon neutrality targets

Zhou,

Yang

2023

Second International Conference on Sustainable Technology and Management (ICSTM 2023)

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The "dual carbon goal" refers to the goal of reducing carbon dioxide and greenhouse gas emissions to combat climate change. In this context, sustainable energy ecosystems and renewable energy for hydrogen storage in airports have become the focus of research. Airports, as places with high energy consumption, are faced with the important task of reducing carbon emissions. Research on sustainable energy ecosystems aims to develop and apply various renewable energy technologies to meet the energy needs of airports. These technologies include solar energy, wind energy, biomass, etc. By utilizing natural resources and renewable energy sources around the airport, the dependence on conventional energy sources can be reduced, reducing the carbon footprint and lowering the environmental impact. Hydrogen production is a method of storing energy by converting electrical energy into hydrogen gas in order to convert it back into electricity when needed. In the study of renewable energy for hydrogen storage, airports can use renewable energy to generate electricity and use the electricity to break down water into hydrogen and oxygen. The hydrogen produced can be stored and supplied to the airport's energy system when needed. This hydrogen production and storage system is efficient and environmentally friendly, providing a continuous and stable energy supply to the airport and reducing dependence on conventional energy sources. The study of sustainable energy ecosystems and renewable hydrogen storage at airports can provide innovative solutions to achieve the "double carbon goal". The results of these studies will help promote sustainable airport energy development, reduce carbon emissions, improve air quality, and provide cleaner and more environmentally friendly energy options for future air traffic systems.

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“…With the global trend of carbon neutrality, high-energy-consuming maglev transportation urgently needs to undergo a clean and low-carbon transformation of energy [3,4]. Distributed renewable energy sources are being considered to be integrated into the traction power system of railway transportation, and their research and promotion are being carried out [5,6]. Refs.…”

Section: Introductionmentioning

confidence: 99%

Multifunctional Superconducting Magnetic Energy Compensation for the Traction Power System of High-Speed Maglevs

Fu,

Chen,

Zhang

et al. 2024

Electronics

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With the global trend of carbon reduction, high-speed maglevs are going to use a large percentage of the electricity generated from renewable energy. However, the fluctuating characteristics of renewable energy can cause voltage disturbance in the traction power system, but high-speed maglevs have high requirements for power quality. This paper presents a novel scheme of a high-speed maglev power system using superconducting magnetic energy storage (SMES) and distributed renewable energy. It aims to solve the voltage sag caused by renewable energy and achieve smooth power interaction between the traction power system and maglevs. The working principle of the SMES power compensation system for topology and the control strategy were analyzed. A maglev train traction power supply model was established, and the results show that SMES effectively alleviated voltage sag, responded rapidly to the power demand during maglev acceleration and braking, and maintained voltage stability. In our case study of a 10 MW high-speed maglev traction power system, the SMES system could output/absorb power to compensate for sudden changes within 10 ms, stabilizing the DC bus voltage with fluctuations of less than 0.8%. Overall, the novel SMES power compensation system is expected to become a promising solution for high-speed maglevs to overcome the power quality issues from renewable energy.

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A Review of Clean Energy Exploitation for Railway Transportation Systems and Its Enlightenment to China

Cited by 14 publications

References 48 publications

Life Cycle Assessment of Current Portuguese Railway and Future Decarbonization Scenarios

Life Cycle Assessment of Current Portuguese Railway and Future Decarbonization Scenarios

Sustainable energy ecosystems and renewable energy airport hydrogen storage systems under peak carbon and carbon neutrality targets

Multifunctional Superconducting Magnetic Energy Compensation for the Traction Power System of High-Speed Maglevs

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