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Energy neutrality potential of wastewater treatment plants: A novel evaluation framework integratingenergy efficiency and recovery

《环境科学与工程前沿(英文)》 2022年 第16卷 第9期 doi: 10.1007/s11783-022-1549-0

摘要:

• Framework of indicators was established based on energy efficiency and recovery.

关键词: Wastewater treatment plants     Energy neutrality potential     Energy efficiency     Energy recovery     Evaluation framework    

Energy transition toward carbon-neutrality in China: Pathways, implications and uncertainties

《工程管理前沿(英文)》 2023年 第10卷 第2期   页码 358-372 doi: 10.1007/s42524-022-0202-8

摘要: Achieving carbon neutrality in China before 2060 requires a radical energy transition. To identify the possible transition pathways of China’s energy system, this study presents a scenario-based assessment using the Low Emissions Analysis Platform (LEAP) model. China could peak the carbon dioxide (CO2) emissions before 2030 with current policies, while carbon neutrality entails a reduction of 7.8 Gt CO2 in emissions in 2060 and requires an energy system overhaul. The assessment of the relationship between the energy transition and energy return on investment (EROI) reveals that energy transition may decrease the EROI, which would trigger increased energy investment, energy demand, and emissions. Uncertainty analysis further shows that the slow renewable energy integration policies and carbon capture and storage (CCS) penetration pace could hinder the emission mitigation, and the possible fossil fuel shortage calls for a much rapid proliferation of wind and solar power. Results suggest a continuation of the current preferential policies for renewables and further research and development on deployment of CCS. The results also indicate the need for backup capacities to enhance the energy security during the transition.

关键词: carbon neutrality     energy transition     uncertainty     EROI     LEAP    

Significant potential of Solid Oxide Fuel Cell systems for distributed power generation and carbon neutrality

《能源前沿(英文)》 2022年 第16卷 第6期   页码 879-882 doi: 10.1007/s11708-022-0850-8

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Levelized costs of the energy chains of new energy vehicles targeted at carbon neutrality in China

《工程管理前沿(英文)》   页码 392-408 doi: 10.1007/s42524-022-0212-6

摘要: The diffusion of new energy vehicles (NEVs), such as battery electric vehicles (BEVs) and fuel cell vehicles (FCVs), is critical to the transportation sector’s deep decarbonization. The cost of energy chains is an important factor in the diffusion of NEVs. Although researchers have addressed the technological learning effect of NEVs and the life cycle emissions associated with the diffusion of NEVs, little work has been conducted to analyze the life cycle costs of different energy chains associated with different NEVs in consideration of technological learning potential. Thus, relevant information on investment remains insufficient to promote the deployment of NEVs. This study proposes a systematic framework that includes various (competing or coordinated) energy chains of NEVs formed with different technologies of power generation and transmission, hydrogen production and transportation, power-to-liquid fuel, and fuel transportation. The levelized costs of three typical carbon-neutral energy chains are investigated using the life cycle cost model and considering the technological learning effect. Results show that the current well-to-pump levelized costs of the energy chains in China for BEVs, FCVs, and internal combustion engine vehicles (ICEVs) are approximately 3.60, 4.31, and 2.21 yuan/GJ, respectively, and the well-to-wheel levelized costs are 4.50, 6.15, and 7.51 yuan/GJ, respectively. These costs primarily include raw material costs, and they vary greatly for BEVs and FCVs from resource and consumer costs. In consideration of the technological learning effect, the energy chains’ well-to-wheel levelized costs are expected to decrease by 24.82% for BEVs, 27.12% for FCVs, and 19.25% for ICEVs by 2060. This work also summarizes policy recommendations on developing energy chains to promote the diffusion of NEVs in China.

关键词: energy chain     new energy vehicle     internal combustion engine vehicle     life cycle cost     technological learning    

China’s carbon neutrality: an extensive and profound systemic reform

《环境科学与工程前沿(英文)》 2023年 第17卷 第2期 doi: 10.1007/s11783-023-1614-3

摘要:

● China has pledged ambitious carbon peak and neutrality goals for mitigating global climate change.

关键词: Carbon neutrality     Energy structure     Technology-dependent society     Coordinated mitigation for air pollutants and CO2    

Special issue: Transition management of energy systems towards carbon neutrality

《工程管理前沿(英文)》 2022年 第9卷 第3期   页码 355-357 doi: 10.1007/s42524-022-0219-z

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Reduction potential of the energy penalty for CO capture in CCS

《能源前沿(英文)》 2023年 第17卷 第3期   页码 390-399 doi: 10.1007/s11708-023-0864-x

摘要: CO2 capture and storage (CCS) has been acknowledged as an essential part of a portfolio of technologies that are required to achieve cost-effective long-term CO2 mitigation. However, the development progress of CCS technologies is far behind the targets set by roadmaps, and engineering practices do not lead to commercial deployment. One of the crucial reasons for this delay lies in the unaffordable penalty caused by CO2 capture, even though the technology has been commonly recognized as achievable. From the aspects of separation and capture technology innovation, the potential and promising direction for solving this problem were analyzed, and correspondingly, the possible path for deployment of CCS in China was discussed. Under the carbon neutral target recently proposed by the Chinese government, the role of CCS and the key milestones for deployment were indicated.

关键词: CO2 capture and storage (CCS)     CO2 separation     energy penalty    

Integrated energy view of wastewater treatment: A potential of electrochemical biodegradation

《环境科学与工程前沿(英文)》 2022年 第16卷 第4期 doi: 10.1007/s11783-021-1486-3

摘要:

• Energy is needed to accelerate the biological wastewater treatment.

关键词: Biological wastewater treatment     Integrated energy view     Electroactive bacteria     Extracellular electron transfer    

China’s hydropower energy system toward carbon neutrality

《工程管理前沿(英文)》   页码 677-682 doi: 10.1007/s42524-022-0196-2

摘要: Wind and solar powers will gradually become dominant energies toward carbon neutrality. Large-scale renewable energies, with strong stochasticity, high volatility, and unadjustable features, have great impacts on the safe operation of power system. Thus, an advanced hydropower energy system serving multiple energies is required to respond to volatility, with expanding role from a “stable energy supplier” to a “flexible efficiency regulator”. Future research and application can be considered from three aspects: 1) system expansion (e.g., the construction of large-scale hydropower/renewable energy bases in China, the construction of transnational hydropower energy internet, and the functional transformation of traditional hydropower reservoirs and generating units); 2) efficiency promotion (e.g., advanced intelligent forecasting, multi-objective operation, and risk management methods); and 3) supporting measures (e.g., market reform, benefit compensation and policy mechanism, technical standards, and laws and regulations).

关键词: hydropower system     carbon neutrality     artificial intelligence    

“双碳”背景下我国中长期能源需求预测与转型路径研究

黄震,谢晓敏,张庭婷

《中国工程科学》 2022年 第24卷 第6期   页码 8-18 doi: 10.15302/J-SSCAE-2022.06.002

摘要:

我国是世界上最大的能源消费和碳排放国家,能源结构“偏煤”、产业结构“偏重”的特点给碳达峰、碳中和(“双碳”)目标实现及能源领域高质量发展构成挑战,因而面向未来的能源转型路径研究较为迫切。本文在梳理我国能源发展现状的基础上,对我国中长期能源需求和转型趋势进行了预测及分析。研究结果表明,2035 年我国一次能源需求总量为5.56×109~5.96×109 tce,单位国内生产总值CO2排放强度较2005 年将下降77.6%~81.5%;能源相关CO2排放将在“十五五”时期达峰;能效提高,可再生能源发展,碳捕获、利用与封存技术应用,氢能及可再生燃料替代是降低能源CO2排放的主要技术措施,技术创新是推动重点领域绿色低碳转型的核心驱动力。进一步从推进节能战略,发展可再生能源,加强技术创新,统筹法制、技术和市场等方面提出了发展建议,以期为能源领域高质量发展提供参考。

关键词: 碳达峰;碳中和;能源需求;能源转型    

Assessment of wind energy potential in Gaza Strip

Juma Yousuf ALAYDI

《能源前沿(英文)》 2011年 第5卷 第3期   页码 297-304 doi: 10.1007/s11708-010-0134-6

摘要: The analysis of collected wind data at two sites in the Gaza Strip, namely, Gaza City and Gaza International Airport in Rafah city, is presented. The two sites are candidates for remote area wind energy applications. The purpose of this paper is to present the results of the assessment of wind energy potential in the Gaza Strip in order to evaluate the wind regimes for installing wind energy conversion systems for power generation. The data on wind speed, direction and frequency distribution are used to analyze wind energy characteristics and availability at some stations in the Gaza Strip. The vertical extrapolation was based on the power-law expression, and the wind energy and potential have been estimated at the wind turbine hub height of approximately 50 m. Furthermore, the values of the Weibull parameters and are determined from summary statistics of wind resource. Consequently, the wind power is estimated by adoption of the Weibull distribution expression. Based on the results of this paper, sites are recommended for wind energy exploitation in the Gaza Strip.

关键词: wind data     wind resource assessment     wind power density     wind energy     the Weibull distribution and Weibull parameters    

Evaluation of the wind energy potential of two south west sites in Nigeria

Olaleye M. AMOO

《能源前沿(英文)》 2012年 第6卷 第3期   页码 237-246 doi: 10.1007/s11708-012-0201-2

摘要: Wind resource assessment is a crucial first step in gauging the potential of a site to produce energy from wind turbines. In this paper, the wind energy potential of Abeokuta (07°03'N, 03°19'E) and Ijebu-Ode (06°47'N, 03°58'E), two south west sites in Nigeria were examined. Twenty years (1990–2010) of monthly mean wind data from a 10 m height were subjected to two-parameter Weibull analysis and other statistical analyses. The results show that the average annual mean wind speed variation for Abeokuta ranges from 2.2 to 5.0 m/s. For Ijebu-Ode, it ranges from 2.0 to 5.0 m/s. The wind power density variation based on the Weibull analysis ranges from 4.26 to 24.51 W/m for Abeokuta and from 8.54 to 76.46 W/m for Ijebu-Ode. Ijebu-Ode was found to be the better of the two sites in terms of annual variation of mean wind speed.

关键词: wind potential     wind speed     wind power density     wind gust     turbulence intensity     Nigeria    

Corrigendum to ‘‘Contemplation on China’s Energy-Development Strategies and Initiatives in the Contextof its Carbon Neutrality Goal” [Engineering 7 (2021) 1684–1687]

Yinao Su, Houliang Dai, Lichun Kuang, Jizhen Liu, Dazhao Gu, Caineng Zou, Haixia Huang

《工程(英文)》 2022年 第11卷 第4期   页码 154-154 doi: 10.1016/j.eng.2022.03.002

碳中和目标下我国再电气化研究

舒印彪 ,谢典 ,赵良 ,高亚静 ,赵勇 ,周朝阳

《中国工程科学》 2022年 第24卷 第3期   页码 195-204 doi: 10.15302/J-SSCAE-2022.03.020

摘要:

我国将碳达峰、碳中和纳入生态文明建设总体布局,电力在引领绿色发展中将发挥更加重要的作用。实施再电气化,实现能源生产侧“清洁替代”和能源消费侧“电能替代”,对我国如期实现碳达峰、碳中和目标具有重要意义。本文剖析了再电气化的核心内涵,结合基本国情及资源禀赋,提出以再电气化助力我国实现低碳发展,按照“终端能源需求—能源转换系统—一次能源结构”的研究框架,综合考虑经济、技术、政策、环境等要素,分析了不同情景下我国能源电力演变趋势,提出再电气化发展前景。研究结果表明,实施再电气化将有力推动实现碳中和目标,2060 年非化石能源消费比重达80%以上、清洁能源发电量比重达90%、终端电能消费比重达70%。研究建议,一是统筹协调好各行业碳预算与减排路径,二是加快经济、产业结构调整,三是推动关键领域科技创新,四是完善电力市场、碳市场体系建设。

关键词: 再电气化;碳中和;能源转型;电能替代    

The carbon dioxide removal potential of Liquid Air Energy Storage: A high-level technical and economic

Andrew LOCKLEY, Ted von HIPPEL

《工程管理前沿(英文)》 2021年 第8卷 第3期   页码 456-464 doi: 10.1007/s42524-020-0102-8

摘要: Liquid Air Energy Storage (LAES) is at pilot scale. Air cooling and liquefaction stores energy; reheating revaporises the air at pressure, powering a turbine or engine (Ameel et al., 2013). Liquefaction requires water & CO removal, preventing ice fouling. This paper proposes subsequent geological storage of this CO – offering a novel Carbon Dioxide Removal (CDR) by-product, for the energy storage industry. It additionally assesses the scale constraint and economic opportunity offered by implementing this CDR approach. Similarly, established Compressed Air Energy Storage (CAES) uses air compression and subsequent expansion. CAES could also add CO scrubbing and subsequent storage, at extra cost. CAES stores fewer joules per kilogram of air than LAES – potentially scrubbing more CO per joule stored. Operational LAES/CAES technologies cannot offer full-scale CDR this century (Stocker et al., 2014), yet they could offer around 4% of projected CO disposals for LAES and<25% for current-technology CAES. LAES CDR could reach trillion-dollar scale this century (20 billion USD/year, to first order). A larger, less certain commercial CDR opportunity exists for modified conventional CAES, due to additional equipment requirements. CDR may be commercially critical for LAES/CAES usage growth, and the necessary infrastructure may influence plant scaling and placement. A suggested design for low-pressure CAES theoretically offers global-scale CDR potential within a century (ignoring siting constraints) – but this must be costed against competing CDR and energy storage technologies.

关键词: carbon dioxide removal     Liquid Air Energy Storage     Compressed Air Energy Storage     geoengineering    

标题 作者 时间 类型 操作

Energy neutrality potential of wastewater treatment plants: A novel evaluation framework integratingenergy efficiency and recovery

期刊论文

Energy transition toward carbon-neutrality in China: Pathways, implications and uncertainties

期刊论文

Significant potential of Solid Oxide Fuel Cell systems for distributed power generation and carbon neutrality

期刊论文

Levelized costs of the energy chains of new energy vehicles targeted at carbon neutrality in China

期刊论文

China’s carbon neutrality: an extensive and profound systemic reform

期刊论文

Special issue: Transition management of energy systems towards carbon neutrality

期刊论文

Reduction potential of the energy penalty for CO capture in CCS

期刊论文

Integrated energy view of wastewater treatment: A potential of electrochemical biodegradation

期刊论文

China’s hydropower energy system toward carbon neutrality

期刊论文

“双碳”背景下我国中长期能源需求预测与转型路径研究

黄震,谢晓敏,张庭婷

期刊论文

Assessment of wind energy potential in Gaza Strip

Juma Yousuf ALAYDI

期刊论文

Evaluation of the wind energy potential of two south west sites in Nigeria

Olaleye M. AMOO

期刊论文

Corrigendum to ‘‘Contemplation on China’s Energy-Development Strategies and Initiatives in the Contextof its Carbon Neutrality Goal” [Engineering 7 (2021) 1684–1687]

Yinao Su, Houliang Dai, Lichun Kuang, Jizhen Liu, Dazhao Gu, Caineng Zou, Haixia Huang

期刊论文

碳中和目标下我国再电气化研究

舒印彪 ,谢典 ,赵良 ,高亚静 ,赵勇 ,周朝阳

期刊论文

The carbon dioxide removal potential of Liquid Air Energy Storage: A high-level technical and economic

Andrew LOCKLEY, Ted von HIPPEL

期刊论文