Article
Green & Sustainable Science & Technology
Mi Zhou, Hongxun Liu, Liqun Peng, Yue Qin, Dan Chen, Lin Zhang, Denise L. Mauzerall
Summary: This study analyzes the air-quality, health, and carbon interdependencies of different heating options in northern China, finding substantial benefits in air quality and health from clean heating options, along with increased heating costs. By 2030, heat pumps show the largest health-carbon synergies among the options analyzed, despite high capital costs, they have lower operating costs and are competitive for long-term use. Increased subsidies for heat pumps can further improve air quality and carbon mitigation in the clean heating transition.
NATURE SUSTAINABILITY
(2022)
Article
Green & Sustainable Science & Technology
Changsong Wu, Dequn Zhou, Donglan Zha, Jong Ho Hong
Summary: This study quantifies the co-benefits of reducing air pollution from global warming mitigation by determining the correlation between CO2 and PM2.5 emissions. The results show a negative correlation between CO2 and PM2.5 emissions worldwide, but no significant dynamic relationship. Different clusters of countries or regions have significant differences in their relationship between CO2 emissions and air pollution. The study suggests promoting a positive relationship between CO2 and PM2.5 emissions through extensive use of renewable energy and reducing oil and natural gas consumption.
ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY
(2023)
Article
Green & Sustainable Science & Technology
Kushal Tibrewal, Chandra Venkataraman
Summary: Climate-oriented goals in air quality and clean energy policies can significantly reduce greenhouse gas emissions, especially by shifting to biomass cooking and addressing emissions from brick production and agricultural residue burning. Sustainable development goals connect policies addressing air quality and energy efficiency with complementary benefits for climate mitigation, but a fragmented approach across domains may hinder effectiveness in addressing short-lived climate forcers.
NATURE SUSTAINABILITY
(2021)
Article
Engineering, Environmental
Bin Zhao, Jing Zhao, Hao Zha, Ruolan Hu, Yalu Liu, Chengrui Liang, Hongrong Shi, Simiao Chen, Yue Guo, Da Zhang, Kristin Aunan, Shaojun Zhang, Xiliang Zhang, Lan Xue, Shuxiao Wang
Summary: China has been implementing a large-scale clean heating renovation campaign since 2017, and an integrated cost-benefit analysis showed that the project significantly reduced the use of solid fuels, decreased PM2.5 concentrations, and resulted in health benefits outweighing costs.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Engineering, Environmental
Congbo Song, Bowen Liu, Kai Cheng, Matthew A. Cole, Qili Dai, Robert J. R. Elliott, Zongbo Shi
Summary: Heating, particularly during winter, has contributed significantly to air pollution in China. However, the implementation of clean heating policies over the past decade has led to improvements in air quality. A study using observation-based causal inference found that winter heating has caused an increase in PM2.5, O3, and SO2 levels. The effectiveness of stricter clean heating policies on reducing PM2.5 was observed in Beijing and surrounding cities.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Economics
Tong Feng, Huibin Du, D'Maris Coffman, Aiyu Qu, Zhanfeng Dong
Summary: The clean heating policy, implemented in 2 + 26 cities of China in 2016, aimed to improve air quality by replacing coal with gas or electricity. The study estimated the economic costs to governments and residents, and evaluated the environmental and public health benefits. Results showed that while the clean heating project had benefits for air pollution control and health, inequality in subsidies between different cities increased the heating burden on low-income households.
Article
Environmental Sciences
Zhige Wang, Bifeng Hu, Ce Zhang, Peter M. Atkinson, Zifa Wang, Kang Xu, Jinfeng Chang, Xuekun Fang, Yefeng Jiang, Zhou Shi
Summary: China's Air Clean Plan (ACP) has effectively reduced PM2.5 concentrations and premature deaths caused by PM2.5 exposure. However, in 2020, there were still significant premature deaths associated with PM2.5 exposure. Carbon mitigation measures have also shown environmental and health co-benefits.
ENVIRONMENT INTERNATIONAL
(2022)
Article
Environmental Sciences
Dongri Han, Su Yan, Xiumei Sun
Summary: This study examines the impact and mechanism of the Winter Clean Heating Plan for Northern China on air pollution reduction. The research finds that the policy has effectively reduced air pollution emissions in the northern region by 17.3% since its implementation. Economic and urban development factors also play a role in reducing air pollution. The results indicate that the policy has a more significant positive influence on air pollution control in Northwest China's cities and non-provincial capital cities.
Article
Environmental Sciences
Pengcheng Wu, Fang Guo, Bofeng Cai, Can Wang, Chen Lv, Hui Liu, Jizhang Huang, Ying Huang, Libin Cao, Lingyun Pang, Ji Gao
Summary: This paper focuses on Guangzhou city and investigates the benefits of reducing carbon emissions under different scenarios. The study finds that implementing stringent mitigation strategies can lead to significant improvements in air quality and public health, particularly in reducing PM2.5 concentrations. Additionally, hotspot grids with high concentrations of carbon emissions and air pollution were identified in Guangzhou, emphasizing the importance of peaking carbon dioxide emissions for city-level environmental and health improvements.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Energy & Fuels
Xin Tan, Guanghui Chen, Kunxian Chen
Summary: In response to severe air pollution caused by winter heating, the Chinese government implemented a clean heating policy in 2017. The policy significantly reduced air pollution and increased the consumption and usage of natural gas for heating. It also led to a shift from coal to natural gas and electricity for household heating. The policy had a greater impact on less urbanized and developed cities, and despite increasing government and household expenditures, it resulted in environmental and health benefits.
Article
Ecology
Mihaly Himics, Elias Giannakis, Jonilda Kushta, Jordan Hristov, Amarendra Sahoo, Ignacio Perez-Dominguez
Summary: The study suggests a shift towards more plant-based diets to reduce agricultural air pollution, which could decrease ammonia emissions by 33% in the European Union and generate significant co-benefits for air quality and human health. Economic benefits from improved human health may also offset the economic losses in the agricultural sector.
ECOLOGICAL ECONOMICS
(2022)
Article
Environmental Sciences
Xiaodan Guo, Ce Jia, Bowen Xiao
Summary: Clean heating is seen as a key strategy to tackle air pollution in northern China. To address the differences in heating habits and residents' income between urban and rural areas, a cost-benefit analysis model is used to propose an improved solution that integrates multiple heat sources. By utilizing low-cost and low-emission-intensity ISM resources, the improved solution reduces PM2.5 emissions from heating to one-fifth, and achieves higher net social benefits.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Environmental
Yang Guo, Mi Zhou, Liqun Peng, Juhua Yang, Mingwei Li, Jinping Tian, Lyujun Chen, Denise L. Mauzerall
Summary: Industrial parks in China have the potential to significantly reduce carbon emissions and achieve air quality improvement, human health benefits, and freshwater conservation by transitioning to clean energy sources. This analysis demonstrates that a clean energy transition in 850 industrial parks could result in a 41% reduction in greenhouse gas emissions and significant reductions in air pollutants such as SO2, NOx, and PM2.5. Furthermore, the transition would bring economic benefits of US$30-156 billion annually by 2030. Therefore, decarbonizing industrial parks in China offers both environmental and economic advantages.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Environmental Sciences
Jinzhao Yang, Yu Zhao, Jing Cao, Chris P. Nielsen
Summary: China has extensively assessed the benefits of carbon and pollution control policies using an integrated framework combining various models, finding that end-of-pipe control measures can reduce mortality related to PM2.5 and O3. Provinces in heavily polluted regions are expected to benefit more, with an increase in population exposure to PM2.5 under the national air quality standard by 2030 while relatively few people will experience WHO guideline levels for O3. The study highlights the importance of joint control strategies for PM2.5 and O3 in future policy-making.
ENVIRONMENT INTERNATIONAL
(2021)
Article
Engineering, Environmental
Yisheng Wang, Mingjun Xie, Yazhen Wu, Xi Zhang, Minghao Wang, Yuqiang Zhang, Yang Xie
Summary: China's commitment to peak carbon emissions and achieve carbon neutrality has positive impacts on air quality, public health, and the economy. The stringent climate mitigation policy in China can significantly reduce premature deaths related to ozone and result in substantial economic savings.
RESOURCES CONSERVATION AND RECYCLING
(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.