Article
Environmental Sciences
Dong Ma, Xiaomeng Wu, Xin Sun, Shaojun Zhang, Hang Yin, Yan Ding, Ye Wu
Summary: This study used big data methods to analyze the activity level characteristics of the light-duty passenger vehicle fleet in China. It found that the annual mileage of vehicles does not significantly decay with vehicle age. The average mileage of private passenger cars in China in 2019 was 10,300 km/year, while the taxi fleet had an average mileage of 80,000 km/year. Due to the pandemic, the annual mileage dropped by 22% in 2020. These findings provide important data support for future environmental and climate benefit assessments.
Article
Environmental Sciences
Hui Song, Shun-Xi Deng, Zhen-Zhen Lu, Jiang-Hao Li, Li-Meng Ba, Jing-Fa Wang, Zhi-Gang Sun, Guang-Hua Li, Chao Jiang, Yan-Zhao Hao
Summary: The study indicates that implementing control measures such as eliminating high-emission vehicles, optimizing after-treatment devices, and increasing the number of alternative fuel vehicles can effectively reduce vehicular emissions in Xi'an. However, the impact on CO and VOCs is more significant compared to NOx, PM2.5, and PM10.
ENVIRONMENTAL POLLUTION
(2021)
Article
Multidisciplinary Sciences
Kaile Zhou, Jingna Yang, Hui Yin, Tao Ding
Summary: In order to achieve its goals of carbon emissions peak and neutrality, China requires collaboration across all sectors. This study explores different scenarios to determine the pathways for emissions reduction and the timing of decoupling economic growth from CO2. The results indicate that China's carbon emissions will peak between 2025 and 2030, with the agriculture, forestry, livestock, and fishing sectors being the first to reach peak emissions. All sectors, except for electricity, gas, and water production and supply, are projected to achieve carbon peak by 2030.
Article
Environmental Studies
Nestor Y. Rojas, Sonia C. Mangones, Mauricio Osses, Claire Granier, Ignacio Laengle, A. Julieth Alfonso, Johann A. Mendez
Summary: Road traffic-related air pollution has various costs for society including loss of lives, health problems, and financial damages. This study provides detailed information on on-road transportation emissions in Colombia from 1990 to 2020, considering factors such as fleet technology, fuel consumption, road infrastructure, and activity levels. The study highlights the impact of economic crises, emission requirements, and quarantine measures on emissions patterns, with particular attention to the growth of motorbikes in the vehicle fleet for certain pollutants.
TRANSPORTATION RESEARCH PART D-TRANSPORT AND ENVIRONMENT
(2023)
Article
Green & Sustainable Science & Technology
Dwi Sarjiya, Lesnanto Multa Putranto, Rizki Firmansyah Setya Budi, Dwi Novitasari, Deendarlianto, Tumiran
Summary: The Java-Bali power system in Indonesia, which has the largest power capacity, contributes to significant CO2 emissions. To address this issue, the Indonesian government has introduced policies such as setting new and renewable energy targets and planning for coal phase-out, aiming to reduce CO2 emissions. This research examines the economic impacts on the energy and carbon nexus in the Java-Bali system, analyzing different scenarios of emission reduction using the OSeMOSYS model. The results highlight the importance of implementing policies that regulate carbon limits and taxes for power generation companies, as well as the significance of nuclear energy and liquefied natural gas in supporting the new and renewable energy targets and coal phase-out plan. Interconnection with other islands rich in renewable energy sources is also crucial for meeting the renewable energy targets and successfully implementing the coal phase-out plan.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2023)
Article
Food Science & Technology
Yexuan Liu, Lin Zhen, Yunfeng Hu
Summary: Ordos is an ecologically fragile area in China, and the local government has implemented ecological projects to optimize food production and consumption. A study was conducted using panel data from 2000 to 2020 to analyze food self-sufficiency and the dependence on imported food. The results show an increase in food production and consumption dominated by grains, but insufficient consumption of vegetables, fruits, and dairy foods. While overall self-sufficiency has been achieved, certain food types remain dependent on imports, threatening local food security.
Article
Soil Science
Xuesong Wang, Wenwu Zhao, Shiliang Liu, Yiming An, Paulo Pereira
Summary: This study investigated the impacts and trajectories of local ecosystems in preventing dust emissions in Inner Mongolia. The results showed that the ecosystems successfully prevented a significant amount of mineral dust emissions, especially in spring and central regions of Inner Mongolia. The study also identified the distribution and frequency of areas benefiting from the prevention of dust emissions.
Article
Environmental Sciences
Shida Sun, Luna Sun, Geng Liu, Chao Zou, Yanan Wang, Lin Wu, Hongjun Mao
Summary: This study developed a high-resolution vehicle emission inventory using the top-down method in Tianjin, China, revealing significant differences in pollutant emissions among different types of vehicles. The findings provide valuable insights for pollution control policy formulation.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Green & Sustainable Science & Technology
Alessandro Tansini, Jelica Pavlovic, Georgios Fontaras
Summary: Plug-in hybrid electric vehicles (PHEVs) are considered favorable transitional technology for road transport electrification. However, recent studies challenge their effectiveness in reducing CO2 emissions in real-world conditions. This study tested four Euro 6 PHEVs and found that their in-use CO2 emissions can range from 0 to 6 times the official type-approval CO2 value. A three-dimensional CO2 emissions model is proposed based on charge level and average trip speed or wheel energy. The study concludes that, although real-world emissions of PHEVs may increase compared to official values, they still generally remain lower than conventional powertrains.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Multidisciplinary Sciences
Xiufan Zhang, Decheng Fan
Summary: The researchers established a multi-objective information entropy allocation model to promote carbon emissions reduction in underdeveloped regions and allocate emission quotas to high energy-consuming industries. The model is based on principles of fairness, efficiency, and sustainability, balancing emission reduction goals with economic development through rational allocation of weights and promoting market activity through larger quota gaps.
Article
Green & Sustainable Science & Technology
Mahdi Asadi, Iman Larki, Mohammad Mahdi Forootan, Rouhollah Ahmadi, Meisam Farajollahi
Summary: Electricity is crucial for a country's economic development and welfare. Examining the electricity situation and defining scenarios for power plant infrastructure development can help countries avoid costly mistakes and improve people's well-being. This study provides three scenarios for Iran's electricity status from 2021 to 2040.
Article
Green & Sustainable Science & Technology
Pengtao Liu, Luyao Liu, Xue Xu, Yanyun Zhao, Jianming Niu, Qing Zhang
Summary: This study evaluated the carbon footprint and carbon emission intensity of a wind farm in Inner Mongolia grassland using the life cycle assessment method, finding that it had lower carbon emission intensity compared to other types of wind farms. Grassland wind farms have the potential for promoting wind power with their low carbon emissions intensity.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Green & Sustainable Science & Technology
J. N. Yin, G. H. Huang, Y. L. Xie, Y. K. An
Summary: A risk explicit interval multistage stochastic programming model considering inter-regional carbon subsidy is developed to support optimal energy system planning in Inner Mongolia, China, improving existing optimization methods by introducing cost risk tradeoff information. The obtained crisp solutions are more feasible and effective for practical policymaking. The study indicates that implementing a carbon subsidy strategy can promote economic growth, shift towards renewable energy, and mitigate air pollution.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Construction & Building Technology
Alice Maury-Micolier, Lei Huang, Franck Taillandier, Guido Sonnemann, Olivier Jolliet
Summary: This paper develops a Life Cycle Assessment-based methodology to assess and compare the burden shifting between indoor air quality and energy consumption, as well as between the building construction and use stages, focusing on three insulation materials. The study finds that human health damage due to indoor exposure is dominant and substantial, except for extruded polystyrene, due to its high global warming potential. The total damages on human health depend on building materials production, emissions during use stage, and impacts related to energy load, and can be minimized with specific insulation thickness and air renewal rate.
BUILDING AND ENVIRONMENT
(2023)
Article
Construction & Building Technology
Bin Huang, Ke Xing, David Ness, Lida Liao, Kan Huang, Peiling Xie, Jialiang Huang
Summary: The decarbonization of the built environment is key to sustainable urbanization and achieving climate neutrality. Precincts, as microcosms of modern cities, play a crucial role in urban planning, development, and exploring the carbon-neutral potential. This research focuses on the carbon assessment and carbon-neutral potential of residential precincts in dynamic settings. The study emphasizes the importance of energy efficiency in buildings and demographic characteristics as critical factors influencing precinct carbon performance.
ENERGY AND BUILDINGS
(2022)
Article
Thermodynamics
Yong Cheng, Fukai Song, Lei Fu, Saishuai Dai, Zhiming Yuan, Atilla Incecik
Summary: This paper investigates the accessibility of wave energy absorption by a dual-pontoon floating breakwater integrated with hybrid-type wave energy converters (WECs) and proposes a hydraulic-pneumatic complementary energy extraction method. The performance of the system is validated through experiments and comparative analysis.
Article
Thermodynamics
Jing Gao, Chao Wang, Zhanwu Wang, Jin Lin, Runkai Zhang, Xin Wu, Guangyin Xu, Zhenfeng Wang
Summary: This study aims to establish a new integrated method for biomass cogeneration project site selection, with a focus on the application of the model in Henan Province. By integrating Geographic Information System and Multiple Criterion Decision Making methods, the study conducts site selection in two stages, providing a theoretical reference for the construction of biomass cogeneration projects.
Article
Thermodynamics
Mert Temiz, Ibrahim Dincer
Summary: The current study presents a hybrid small modular nuclear reactor and solar-based system for sustainable communities, integrating floating and bifacial photovoltaic arrays with a small modular reactor. The system efficiently generates power, hydrogen, ammonia, freshwater, and heat for residential, agricultural, and aquaculture facilities. Thermodynamic analysis shows high energy and exergy efficiencies, as well as large-scale ammonia production meeting the needs of metropolitan areas. The hybridization of nuclear and solar technologies offers advantages of reliability, environmental friendliness, and cost efficiency compared to renewable-alone and fossil-based systems.
Editorial Material
Thermodynamics
Wojciech Stanek, Wojciech Adamczyk
Article
Thermodynamics
Desheng Xu, Yanfeng Li, Tianmei Du, Hua Zhong, Youbo Huang, Lei Li, Xiangling Duanmu
Summary: This study investigates the optimization of hybrid mechanical-natural ventilation for smoke control in complex metro stations. The results show that atrium fires are more significantly impacted by outdoor temperature variations compared to concourse/platform fires. The gathered high-temperature smoke inside the atrium can reach up to 900 K under a 5 MW train fire energy release. The findings provide crucial engineering insights into integrating weather data and adaptable ventilation protocols for smoke prevention/mitigation.
Article
Thermodynamics
Da Guo, Heping Xie, Mingzhong Gao, Jianan Li, Zhiqiang He, Ling Chen, Cong Li, Le Zhao, Dingming Wang, Yiwei Zhang, Xin Fang, Guikang Liu, Zhongya Zhou, Lin Dai
Summary: This study proposes a new in-situ pressure-preserved coring tool and elaborates its pressure-preserving mechanism. The experimental and field test results demonstrate that this tool has a high pressure-preservation capability and can maintain a stable pressure in deep wells. This study provides a theoretical framework and design standards for the development of similar technologies.
Article
Thermodynamics
Aolin Lai, Qunwei Wang
Summary: This study assesses the impact of China's de-capacity policy on renewable energy development efficiency (REDE) using the Global-MSBM model and the difference-in-differences method. The findings indicate that the policy significantly enhances REDE, promoting technological advancements and marketization. Moreover, regions with stricter environmental regulations experience a higher impact.
Article
Thermodynamics
Mostafa Ghasemi, Hegazy Rezk
Summary: This study utilizes fuzzy modeling and optimization to enhance the performance of microbial fuel cells (MFCs). By simulating and analyzing experimental data sets, the ideal parameter values for increasing power density, COD elimination, and coulombic efficiency were determined. The results demonstrate that the fuzzy model and optimization methods can significantly improve the performance of MFCs.
Article
Thermodynamics
Zhang Ruan, Lianzhong Huang, Kai Wang, Ranqi Ma, Zhongyi Wang, Rui Zhang, Haoyang Zhao, Cong Wang
Summary: This paper proposes a grey box model for fuel consumption prediction of wing-diesel hybrid vessels based on feature construction. By using both parallel and series grey box modeling methods and six machine learning algorithms, twelve combinations of prediction models are established. A feature construction method based on the aerodynamic performance of the wing and the energy relationship of the hybrid system is introduced. The best combination is obtained by considering the root mean square error, and it shows improved accuracy compared to the white box model. The proposed grey box model can accurately predict the daily fuel consumption of wing-diesel hybrid vessels, contributing to operational optimization and the greenization and decarbonization of the shipping industry.
Article
Thermodynamics
Huayi Chang, Nico Heerink, Junbiao Zhang, Ke He
Summary: This study examines the interaction between off-farm employment decisions between couples and household clean energy consumption in rural China, and finds that two-paycheck households are more likely to consume clean energy. The off-farm employment of women is a key factor driving household clean energy consumption to a higher level, with wage-employed wives having a stronger influence on these decisions than self-employed ones.
Article
Thermodynamics
Hanguan Wen, Xiufeng Liu, Ming Yang, Bo Lei, Xu Cheng, Zhe Chen
Summary: Demand-side management is crucial to smart energy systems. This paper proposes a data-driven approach to understand the relationship between energy consumption patterns and household characteristics for better DSM services. The proposed method uses a clustering algorithm to generate optimal customer groups for DSM and a deep learning model for training. The model can predict the possibility of DSM membership for a given household. The results demonstrate the usefulness of weekly energy consumption data and household socio-demographic information for distinguishing consumer groups and the potential for targeted DSM strategies.
Article
Thermodynamics
Xinglan Hou, Xiuping Zhong, Shuaishuai Nie, Yafei Wang, Guigang Tu, Yingrui Ma, Kunyan Liu, Chen Chen
Summary: This study explores the feasibility of utilizing a multi-level horizontal branch well heat recovery system in the Qiabuqia geothermal field. The research systematically investigates the effects of various engineering parameters on production temperature, establishes mathematical models to describe their relationships, and evaluates the economic viability of the system. The findings demonstrate the significant economic feasibility of the multi-level branch well system.
Article
Thermodynamics
Longxin Zhang, Songtao Wang, Site Hu
Summary: This investigation reveals the influence of tip leakage flow on the modern transonic rotor and finds that the increase of tip clearance size leads to a decline in rotor performance. However, an optimal tip clearance size can extend the rotor's stall margin.
Article
Thermodynamics
Kristian Gjoka, Behzad Rismanchi, Robert H. Crawford
Summary: This paper proposes a framework for assessing the performance of 5GDHC systems and demonstrates it through a case study in a university campus in Melbourne, Australia. The results show that 5GDHC systems are a cost-effective and environmentally viable solution in mild climates, and their successful implementation in Australia can create new market opportunities and potential adoption in other countries with similar climatic conditions.
Article
Thermodynamics
Jianwei Li, Guotai Wang, Panpan Yang, Yongshuang Wen, Leian Zhang, Rujun Song, Chengwei Hou
Summary: This study proposes an orientation-adaptive electromagnetic energy harvester by introducing a rotatable bluff body, which allows for self-regulation to cater for changing wind flow direction. Experimental results show that the output power of the energy harvester can be greatly enhanced with increased rotatory inertia of the rotating bluff body, providing a promising solution for harnessing wind-induced vibration energy.