Assessing the vulnerability of energy supply chains: Influencing factors and countermeasures

Hao, Yu-Xia; Chang, Ruidong; Wang, Qian-Cheng

doi:10.1016/j.seta.2023.103018

Cited by 11 publications

(4 citation statements)

References 23 publications

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“…The Chinese government has also set a clear goal of reaching carbon peak by 2030 and achieving carbon neutrality by 2060. Towards the sustainable development goals (SDGs), green construction and city regeneration or urban renovation play a significant role in resource conservation and emission reduction, considering the inevitable ever-increasing city expansion and population explosion in China [15].…”

Section: Literature Reviewmentioning

confidence: 99%

Green Renovation and Retrofitting of Old Buildings: A Case Study of a Concrete Brick Apartment in Chengdu

et al. 2023

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With the progress of urbanization in China, the energy-saving renovation of a large number of existing buildings, especially old buildings, has become an important project for the green and low-carbon development of urban renewal. This paper takes the old brick school building in a university in Chengdu as an example. Through field research, the existing problems of the building are analyzed in detail in terms of building function, structure and appearance, and a detailed plan for functional upgrading, structural reinforcement and façade renovation is drawn up, taking into account the actual requirements and environmental status. In addition, solar photovoltaic technology is integrated into the renovation of the building’s pitched roof. Through modelling and analysis, the amount of solar energy captured by the photovoltaic roof is quantitatively simulated and the dynamic energy-saving potential of the renovation project under changing actual meteorological conditions is pre-evaluated. The preliminary results indicate that such green renovations can contribute to about 164,066 kWh annual solar energy collection and the self-use electricity from the PV roof accounts for 42–76% of total energy consumption, leading to about 60% building energy consumption conservation. The payback period of such a renovation program is assessed to be about 1.9 years, which is quite economically feasible considering the local energy tariff policy. This paper explores the feasibility and design direction of green and low-carbon renovation and upgrading of old buildings, which can provide a reference for the application of green and low-carbon renovation of local old buildings.

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Section: Literature Reviewmentioning

confidence: 99%

Green Renovation and Retrofitting of Old Buildings: A Case Study of a Concrete Brick Apartment in Chengdu

et al. 2023

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“…Construction projects are usually multiple objective process [19]. There are several reports on the impacts of COVID-19 on construction engineering, including site health and safety, economic costs, legal risks, manpower availability, supply chain instability, and uncertainty due to the unpredictable evolution of the pandemic [20][21][22]. The magnitude of these impacts varies based on project size, contractor characteristics, local government policies, etc.…”

Section: Impact Of Covid-19 On Construction Project Performancementioning

confidence: 99%

Post-COVID-19 Recovery: An Integrated Framework of Construction Project Performance Evaluation in China

Guo

Liu

Xue

et al. 2023

Systems

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With the lifting of the COVID-19 lockdown, the construction industry is gradually moving towards a new normality. This study aims to evaluate the construction project performance in the post-COVID-19 pandemic context and proposes a roadmap framework to achieve project recovery in China. This paper follows a sequential mixed methodology with three core steps. First, the critical success factors (CSFs) and key performance indicators (KPIs) are derived from literature reviews and expert interviews. Second, the study conducts a questionnaire survey with 150 experts. Third, the research implements factor analysis and analytic hierarchy process (AHP) analysis for CSFs and characteristics and comparative analysis for KPIs. Based on the results, the study employs structural equational modelling (SEM) to connect the CSFs and KPIs and develop a roadmap towards the post-COVID-19 pandemic recovery of the construction projects. The study identifies 32 CSFs and 25 KPIs and categorises them into five clusters, respectively. The SEM analysis suggests that management and technological innovation significantly contribute to achieving enterprise strategic goals and advancing industrial development. The consistency of project goals and external expectations also positively affect the satisfaction level of stakeholders and social impact. In addition, the AHP clarifies that the stability of the external environment, the internal support, and the adequacy of resources are critical drivers to the post-COVID-19 recovery of construction projects. This research proffers a roadmap towards the project recovery of the construction industry in the post-COVID-19 era by connecting the performance indicators and their critical success drivers. The findings would guide comprehensive design and construction, project life cycle management, and assist in dealing with public health emergencies in construction project management to maximise the organisation’s profits and positive social impact.

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“…Extending the optimization horizon, the combined use of Bezier and PARSEC parameterization approaches emerged as a versatile method applicable to a diverse range of airfoil shapes [6]. Building on this, Krishnan et al [7] conducted a comprehensive review exploring optimization methods applicable to both wind turbines and airfoils. The focus zeroed in on the efficacy of methods such as GAs and multi-parameter tuning in yielding optimal results.…”

Section: Introductionmentioning

confidence: 99%

Optimizing NACA2414 airfoil aerodynamics with PARSEC parametrization and Genetic Algorithm

Krishnan,

Al-Obaidi,

Ching Hao

2024

E3S Web Conf.

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This research endeavours to contribute to the broader field of wind turbine aerodynamics by investigating a method to enhance the performance of airfoils, with specific attention to the NACA2414 airfoil at a 15-degree angle of attack. The study explores the airfoil’s performance across a range of -10 to 15 degrees angle of attack. It employs both PARSEC parametrization and Genetic Algorithm optimization, achieving significant advancements. At a 15-degree angle of attack, post-optimization, the lift coefficient for the NACA2414 airfoil exhibits a remarkable increase to 1.5275 at a Reynolds number of 105, surpassing the original airfoil’s performance of 1.2407. This progress highlights the effectiveness of utilizing PARSEC parametrization and Genetic Algorithm optimization, particularly in low-speed wind turbine applications. While emphasizing potential applications in low-wind-speed scenarios, the findings underscore the significance of these techniques in renewable energy production.

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Assessing the vulnerability of energy supply chains: Influencing factors and countermeasures

Cited by 11 publications

References 23 publications

Green Renovation and Retrofitting of Old Buildings: A Case Study of a Concrete Brick Apartment in Chengdu

Green Renovation and Retrofitting of Old Buildings: A Case Study of a Concrete Brick Apartment in Chengdu

Post-COVID-19 Recovery: An Integrated Framework of Construction Project Performance Evaluation in China

Optimizing NACA2414 airfoil aerodynamics with PARSEC parametrization and Genetic Algorithm

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