Article
Energy & Fuels
Duong Minh Ngoc, Montri Luengchavanon, Pham Thi Anh, Kim Humphreys, Kuaanan Techato
Summary: This study conducted a life cycle assessment of a novel domestic-scale vertical axis wind turbine, evaluating its environmental impact and comparing it to the Thai grid mix. The results showed that the turbine's design, transportation, and materials played a role in reducing impacts, but end-of-life treatments also made a contribution. However, the turbine had long greenhouse gas and energy payback times, indicating a need for further improvement.
Article
Thermodynamics
Pedro Francisco Silva Trentin, Pedro Henrique Barsanaor de Barros Martinez, Gabriel Bertacco dos Santos, Eloy Esteves Gasparin, Leandro Oliveira Salviano
Summary: The demand for alternative and renewable energy sources has been increasing rapidly in recent years, with wind energy emerging as an attractive option. This study used CFD and RS methodologies to optimize a vertical axis wind turbine, showing that the pitch angle is the most important factor for improving turbine performance.
Article
Green & Sustainable Science & Technology
Andrea Orlando, Luisa Pagnini, Maria Pia Repetto
Summary: This paper discusses the response and fatigue damage of the supporting tower of a small vertical axis wind turbine under stationary and non-stationary excitation. It highlights the importance of detailed modeling, the use of full-scale data, and the detection of isolated events of non-stationary vibrations.
Article
Green & Sustainable Science & Technology
Abdelgalil Eltayesh, Francesco Castellani, Francesco Natili, Massimiliano Burlando, Amr Khedr
Summary: This study investigates innovative solutions for improving the performance of a Darrieus vertical axis wind turbine through numerical and engineering approaches. The interventions include rotor hybridization and the application of dimples to improve the airfoil performances. Results demonstrate the effectiveness of these interventions in obtaining a rotor with stable performances in a wide range of wind regimes.
ENERGY FOR SUSTAINABLE DEVELOPMENT
(2023)
Article
Energy & Fuels
Konrad Pietrykowski, Nanthagopal Kasianantham, Dineshkumar Ravi, Michal Jan Geca, Prakash Ramakrishnan, Miroslaw Wendeker
Summary: The vertical axis wind turbine with enhanced swept blade area is an attractive propulsion system for sustainable energy generation. The performance of the turbine is greatly dependent on wind speed, blade set angle, and rotational speed. Increasing the swept area of the blades enhances the torque and power output. Experimental results showed that torque and power increased with an increase in wind speed and rotational speeds.
Article
Green & Sustainable Science & Technology
Joachim Toftegaard Hansen, Mahak Mahak, Iakovos Tzanakis
Summary: This study investigates the performance enhancement of vertical axis wind turbine (VAWT) pairs through CFD simulations, finding that optimized layouts can increase power output of wind turbine farms. Results show that mesh size, domain size, and azimuth increment have the biggest impact on the converged results. Pairs of VAWTs and three turbines in series exhibited higher power output compared to operating in isolation.
Article
Engineering, Aerospace
W. R. Graham, C. E. Pearson
Summary: Vertical-axis wind turbines are a popular choice for small-scale wind power installations. Measurements from a model-scale turbine in a wind tunnel show that the main sources of noise are the blade self-noise and blade-wake interaction. Boundary-layer trips have a significant impact on the noise, indicating that laminar instability is an important contributor. To minimize sound radiation, configurations with lower tip-speed ratios at maximum power output should be preferred.
Article
Green & Sustainable Science & Technology
Rustem Manatbayev, Zhandos Baizhuma, Saltanat Bolegenova, Aleksandar Georgiev
Summary: The study focuses on the icing effects and ice accretion shapes on vertical axis wind turbines. Results show that ice shapes under different angles of attack significantly affect aerodynamic performance, especially in glaze ice conditions.
Article
Green & Sustainable Science & Technology
Shoutu Li, Qin Chen, Ye Li, Stefan Probsting, Congxin Yang, Xiaobo Zheng, Yannian Yang, Weijun Zhu, Wenzhong Shen, Faming Wu, Deshun Li, Tongguang Wang, Shitang Ke
Summary: With the rapid increase in global wind power installation, noise pollution from wind turbines, especially in urban environments, has been attracting significant attention. Researchers conducted systematic experimental tests in an anechoic wind tunnel to enhance understanding of noise pollution caused by vertical axis wind turbines in urban areas. The results showed that low-frequency noise becomes more prominent as wind speed increases, and the blade-passing frequency plays a major role in generating low-frequency noise. Different designs were analyzed according to national standards from various countries, and an optimal design of a vertical axis wind turbine suitable for urban environments with minimal noise impact was identified.
Article
Thermodynamics
Jie Su, Yu Li, Yaoran Chen, Zhaolong Han, Dai Zhou, Yongsheng Zhao, Yan Bao
Summary: This paper investigates the aerodynamic performance of a floating vertical axis wind turbine under platform pitch motion and reveals that the net power coefficient increases and aerodynamic load fluctuation rises under pitch motion. The pitch motion pattern has similar effects to surge and heave motions, and the frequency of the peak torque coefficient varies with different periods.
Article
Energy & Fuels
Davide Cazzaro, Gabriele Bedon, David Pisinger
Summary: Vertical Axis Wind Turbines (VAWTs) offer advantages over Horizontal Axis Wind Turbines (HAWTs), such as higher power densities and reduced wakes. The optimization of wind farm layouts is crucial for extracting more energy. In this study, we develop an optimizer for VAWTs that considers various layouts and obstacles. We also present a novel model for wind farm optimization that takes into account the rotation of turbines, increasing total energy production.
Article
Green & Sustainable Science & Technology
Hua-Dong Zheng, Xian-Feng Wang, Chen-Xi Liu, Zhen Wang, Bin Wu
Summary: This study investigates the dynamic response and collapse pattern of a 1 MW VAWT under wind and earthquake action. The results show that the displacements caused by near-field earthquakes are greater than those caused by far-field earthquakes. Near-field earthquakes are also prone to cause yielding, buckling, and collapse of the operational wind turbine.
Article
Thermodynamics
D. McLean, K. Pope, X. Duan
Summary: Renewable production of space and water heating is essential for sustainability. A vertical-axis wind turbine equipped with a paddle wheel-style mixing impeller can directly heat a fluid through agitation. However, there are challenges in starting up an autonomous wind-to-thermal system. This study quantifies the start-up difficulty of a vertical-axis wind turbine and explores the potential of a fluid-agitation thermal generator. The thermodynamic analysis shows that significant temperature rise can be achieved using this system.
ENERGY CONVERSION AND MANAGEMENT
(2022)
Article
Engineering, Multidisciplinary
Ketut Wirtayasa, Chun-Yu Hsiao
Summary: The use of axial flux permanent magnet generators in small-scale wind turbines is increasing due to innovation and new material discoveries. This study designed nine possible patterns and found that the type IX generator is the most qualified among them.
ALEXANDRIA ENGINEERING JOURNAL
(2022)
Article
Engineering, Multidisciplinary
S. Teksin, N. Azginoglu, S. O. Akansu
Summary: The study attempted various modifications of a darrieus VAWT through wind tunnel testing, using a modified NACA4412 blade profile. Experimental investigations of different parameters' influences were conducted, and artificial neural networks were applied to estimate effects at different scales. The focus of the study was on design standards and applications of VAWTS, showing promising results for ease in similar designs as well as contributing to environmental cleanup and renewable energy resources.
ALEXANDRIA ENGINEERING JOURNAL
(2022)
Article
Economics
Evanthie Michalena, Viktor Kouloumpis, Jeremy M. Hills
Article
Environmental Sciences
V Kouloumpis, R. S. Pell, M. E. Correa-Cano, X. Yan
SCIENCE OF THE TOTAL ENVIRONMENT
(2020)
Article
Energy & Fuels
Guglielmo D'Amico, Giovanni Masala, Filippo Petroni, Robert Adam Sobolewski
Article
Green & Sustainable Science & Technology
Victor Kouloumpis, Xiaoyu Yan
Summary: The transition towards a sustainable energy mix is required to achieve Sustainable Development Goal 7 for affordable and clean energy. A life cycle sustainability framework was developed and applied to assess renewable energy generation scenarios for the island of Ushant, with results showing that only three out of seven scenarios could meet the demand and improve indicators.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Green & Sustainable Science & Technology
Victor Kouloumpis, Adisa Azapagic
Summary: The paper introduces a new model for estimating the life cycle impacts of offshore wind electricity, taking into account specific technical characteristics of individual installations. The model enables quick and accurate estimation of impacts for different offshore wind farms, providing important insights for designers, developers, and policy makers.
SUSTAINABLE PRODUCTION AND CONSUMPTION
(2022)
Article
Environmental Sciences
Victor Kouloumpis, Xiaoyu Yan
Summary: This study found that the CEReS method could potentially eliminate the environmental impacts related to toxicity but increase the climate change impacts by ten times based on a case study of a Polish coal mine. Using a lower carbon electricity mix and reducing water and energy requirements in some stages of the method are recommended to mitigate the climate change and fossil depletion impacts.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Multidisciplinary Sciences
George Tsinarakis, Victor Kouloumpis, Anastasia Pavlidou, George Arampatzis
Summary: Data was collected using standard communication equipment and invoices provided by an established civil construction and renewable energy development and operation company. The collected data was recorded into four distinct Excel files, which can be used for cost estimation, life cycle assessment modeling, energy generation prediction and management, and comparative evaluation between different renewable electricity generation alternatives.
Article
Green & Sustainable Science & Technology
Victor Kouloumpis, Giorgos E. Konstantzos, Christina Chroni, Konstadinos Abeliotis, Katia Lasaridi
Summary: The study examines the environmental impacts of preparing for reuse of Waste Electrical and Electronic Equipment (WEEE). The repair and reuse of smartphones can reduce their environmental impacts, while the repair and reuse of vacuum cleaners result in increased environmental impacts. These findings can inform policy-making and decision-making regarding specific preparing for reuse targets.
SUSTAINABLE PRODUCTION AND CONSUMPTION
(2023)
Article
Green & Sustainable Science & Technology
Victor Kouloumpis, Antonios Kalogerakis, Anastasia Pavlidou, George Tsinarakis, George Arampatzis
Article
Green & Sustainable Science & Technology
Victor Kouloumpis, Adisa Azapagic
SUSTAINABLE PRODUCTION AND CONSUMPTION
(2018)
Proceedings Paper
Computer Science, Artificial Intelligence
Migran N. Gevorkyan, Anastasiya V. Demidova, Ivan S. Zaryadov, Robert A. Sobolewski, Anna V. Korolkova, Dmitry S. Kulyabov, Leonid A. Sevastianov
PROCEEDINGS - 31ST EUROPEAN CONFERENCE ON MODELLING AND SIMULATION ECMS 2017
(2017)
Proceedings Paper
Computer Science, Artificial Intelligence
Robert Adam Sobolewski
DEPENDABILITY ENGINEERING AND COMPLEX SYSTEMS
(2016)
Article
Green & Sustainable Science & Technology
Victor Kouloumpis, Laurence Stamford, Adisa Azapagic
SUSTAINABLE PRODUCTION AND CONSUMPTION
(2015)
Article
Green & Sustainable Science & Technology
Lars odegaard Bentsen, Narada Dilp Warakagoda, Roy Stenbro, Paal Engelstad
Summary: This study investigates uncertainty modeling in wind power forecasting using different parametric and non-parametric methods. Johnson's SU distribution is found to outperform Gaussian distributions in predicting wind power. This research contributes to the literature by introducing Johnson's SU distribution as a candidate for probabilistic wind forecasting.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Xing Liu, Qiuchen Wang, Yunhao Wen, Long Li, Xinfang Zhang, Yi Wang
Summary: This study analyzes the characteristics of process parameters in three lean gas ethane recovery processes and establishes a prediction and multiobjective optimization model for ethane recovery and system energy consumption. A new method for comparing ethane recovery processes for lean gas is proposed, and the addition of extra coolers improves the ethane recovery. The support vector regression model based on grey wolf optimization demonstrates the highest prediction accuracy, and the multiobjective multiverse optimization algorithm shows the best optimization performance and diversity in the solutions.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Cairong Song, Haidong Yang, Xian-Bing Meng, Pan Yang, Jianyang Cai, Hao Bao, Kangkang Xu
Summary: The paper proposes a novel deep learning-based prediction framework, aTCN-LSTM, for accurate cooling load predictions. The framework utilizes a gate-controlled multi-head temporal convolutional network and a sparse probabilistic self-attention mechanism with a bidirectional long short-term memory network to capture both temporal and long-term dependencies in the cooling load sequences. Experimental results demonstrate the effectiveness and superiority of the proposed method, which can serve as an effective guide for HVAC chiller scheduling and demand management initiatives.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Zhe Chen, Xiaojing Li, Xianli Xia, Jizhou Zhang
Summary: This study uses survey data from the Loess Plateau in China to evaluate the impact of social interaction on the adoption of soil and water conservation (SWC) technology by farmers. The study finds that social interaction increases the likelihood of farmers adopting SWC, and internet use moderates this effect. The positive impact of social interaction on SWC adoption is more pronounced for farmers in larger villages and those who join cooperative societies.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Chenghua Zhang, Yunfei Yan, Kaiming Shen, Zongguo Xue, Jingxiang You, Yonghong Wu, Ziqiang He
Summary: This paper reports a novel method that significantly improves combustion performance, including heat transfer enhancement under steady-state conditions and adaptive stable flame regulation under velocity sudden increase.
JOURNAL OF CLEANER PRODUCTION
(2024)