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Water, energy and food interactions–Challenges and opportunities

Gustaf OLSSON

《环境科学与工程前沿(英文)》 2013年 第7卷 第5期   页码 787-793 doi: 10.1007/s11783-013-0526-z

摘要: Water and energy are inextricably linked, and as a consequence both have to be addressed together. This is called the water-energy nexus. When access to either is limited, it becomes obvious that it is necessary to consider their interdependence. Population growth, climate change, urbanization, increasing living standards and food consumption will require an integrated approach where food, water and energy security are considered together. In this paper we examine water, energy and food security and their couplings. The nexus also creates conflicts between water use, energy extraction and generation as well as food production. Some of these conflicts are illustrated. It is argued that there is an urgent need for integrated planning and operation. Not only will better technology be needed, but also better integration of policies, organizations and political decisions.

关键词: water security     energy security     food security     water-energy nexus     water conflicts    

社会水循环系统水 – 能 – 碳纽带关系及低碳调控策略研究

王建华,朱永楠 ,李玲慧,李嘉欣,姜珊,何国华

《中国工程科学》 2023年 第25卷 第4期   页码 191-201 doi: 10.15302/J-SSCAE-2023.04.014

摘要:

水是社会经济系统中最活跃、最关键的因素,伴随水的取用和处理,温室气体排放规模不断增加,因而研究社会水循环系统中的能源消耗和碳排放规律对推动实现“双碳”目标具有重要意义。本文从水–能–碳纽带关系角度着手,梳理了社会水循环过程中的能源消耗和碳排放现状,基于变化趋势及影响因素分析结果并把握面临的机遇和挑战,提出了“双碳”目标下社会水循环系统高效低碳发展的应对策略。我国社会水循环系统正朝着能源密集型方向发展,其中供水、排水环节的碳排放强度增幅最大,2009—2021 年分别增加了23.3%、78.6%;说明随着非常规水、跨流域调水规模的增加,未来水系统耗能及碳排放量将持续增加,实现碳中和目标任务艰巨。研究建议:加强基础科学研究,构建社会水循环全过程碳核算体系;推动系统配置和低碳技术研发,整体提升减污降碳综合能力;激励全社会加强节水,实现水资源与能源的双重节约;完善水系统碳排放管理,实现社会水循环低碳发展。

关键词: “双碳”;社会水循环;水 – 能 – 碳纽带关系;碳核算;水管理    

The energy-environment nexus: aerosol science and technology enabling solutions

Pratim BISWAS, Wei-Ning WANG, Woo-Jin AN

《环境科学与工程前沿(英文)》 2011年 第5卷 第3期   页码 299-312 doi: 10.1007/s11783-011-0351-1

摘要: Energy issues are important and consumption is slated to increase across the globe in the future. The energy-environment nexus is very important as strategies to meet future energy demand are developed. To ensure sustainable growth and development, it is essential that energy production is environmentally benign. There are two temporal issues—one that is immediate, and needs to address the environmental compliance of energy generation from fossil fuel sources; and second that is the need to develop newer alternate and more sustainable approaches in the future. Aerosol science and technology is an enabling discipline that addresses the energy issue over both these time scales. The paper is a review of aspects of aerosol science and engineering that helps address carbon neutrality of fossil fuels. Advanced materials to meet these challenges are discussed. Future approaches to effective harvesting of sunlight that are enabled by aerosol studies are discussed.

关键词: energy-environment nexus     aerosol science and technology     fossil fuels     carbon dioxide conversion     solar energy     nanoparticle technology    

Analysis of catchment evapotranspiration at different scales using bottom-up and top-down approaches

Xiangyu XU, Dawen YANG,

《结构与土木工程前沿(英文)》 2010年 第4卷 第1期   页码 65-77 doi: 10.1007/s11709-010-0002-9

摘要: Physically-based hydrological models are used to predict catchment water balance through detailed simulation of hydrological processes at small temporal and spatial scales. However, annual catchment water balance can also be easily and simply predicted using lumped conceptual model. Comparison between physically-based hydrological models and lumped conceptual models can help us understand the dominant factors on catchment water balance at different scales. In this paper, a distributed physically-based hydrological model (i.e., bottom-up approach) and a simple water-energy balance model (i.e., top-down approach) are used to predict actual evapotranspiration in nine sub-catchments, and the whole basin of the Luan River in northern China. Both simulations give very close values of annual evapotranspiration and show the same complementary relationship between actual and potential evapotranspiration at annual time scale. From the analysis at different time scales through comparison of the top-down and the bottom-up methods, it is shown that the annual catchment evapotranspiration is controlled mainly by annual precipitation and potential evapotranspiration, and the variability of soil water and vegetation becomes more important at a smaller time scale in the study areas. It is also known that the relationship between potential and actual evapotranspiration shows a highly nonlinear relationship at the annual and catchment scale but can be simplified to a linear relationship at hourly temporal and hillslope scales, which is commonly used in the physically-based hydrological models.

关键词: catchment evapotranspiration     distributed hydrological model     water-energy balance model     top-down and bottom-up approaches    

用跨学科网络组织化研究框架解释食物-能源-水的纽带关系 Perspective

庄杰, Frank E. Löffler, Gary S. Sayler

《工程(英文)》 2022年 第11卷 第4期   页码 95-100 doi: 10.1016/j.eng.2021.08.017

摘要:

城市化、人口增长以及食物-能源-水(food-energy-water, FEW)的加速消耗给经济、环境和社会(economic, environmental, and social, ESS)的可持续性发展带来了前所未有的挑战

关键词: 食物     能源         利益相关者     政策     环境可持续性    

食物-能源-水钮带关系研究能否与农业创新保持同步?

庄杰, Tom Gill, Frank E. Löffler, 金明洲, Gary S. Sayler

《工程(英文)》 2023年 第23卷 第4期   页码 24-28 doi: 10.1016/j.eng.2022.08.014

Nexus security: governance, innovation and the resilient city

Michael Bruce BECK, Rodrigo VILLARROEL WALKER

《环境科学与工程前沿(英文)》 2013年 第7卷 第5期   页码 640-657 doi: 10.1007/s11783-013-0549-5

摘要: Nexus security is a compound mix of ideas: reconciling human needs and wants with access to multiple resources; diversity of access to those resources and services; resilience in the face of weather- and climate-related variability; resilience likewise in the face of infrastructure failure; and the personal, individual sense of belonging. At the level of Systems Thinking there is a very close relationship between resilience in the behavior of natural (ecological) systems and resilience in the social dynamics of governance within communities, where such resilience establishes the viability of these communities over centuries, which in turn entails successful stewardship of the man-environment relationship. We use insights from this cross-system mapping — across natural, built, and human systems — to assess, first, the role of city governance in achieving nexus security (or not) and, second, the role of technological innovations in serving the same purpose. More specifically, eight principles, covering resilience and diversity of access to resources and services, are used to gauge security-enhancing features of city buildings and infrastructure. Case studies include new designs of resilient office blocks, nutrient (nitrogen and phosphorus) recovery systems for sanitation and wastewater treatment, and the reconstruction of urban parks for the provision of ecosystem services. Throughout the paper, matters of risk in the face of meteorological variability are prominent. We do not conclude, however, that the presence of risk implies nexus security.

关键词: cities as forces for good     climate variability     ecosystem services     energy and nutrient recovery     infrastructure failure     urban metabolism    

Examining the nexus of blockchain technology and digital twins: Bibliometric evidence and research trends

《工程管理前沿(英文)》 doi: 10.1007/s42524-024-0306-4

摘要: The integration of Blockchain Technology (BT) with Digital Twins (DTs) is becoming increasingly recognized as an effective strategy to enhance trust, interoperability, and data privacy in virtual spaces such as the metaverse. Although there is a significant body of research at the intersection of BT and DTs, a thorough review of the field has not yet been conducted. This study performs a systematic literature review on BT and DTs, using the CiteSpace analytic tool to evaluate the content and bibliometric information. The review covers 976 publications, identifying the significant effects of BT on DTs and the integration challenges. Key themes emerging from keyword analysis include augmented reality, smart cities, smart manufacturing, cybersecurity, lifecycle management, Ethereum, smart grids, additive manufacturing, blockchain technology, and digitalization. Based on this analysis, the study proposes a development framework for BT-enhanced DTs that includes supporting technologies and applications, main applications, advantages and functionalities, primary contexts of application, and overarching goals and principles. Additionally, an examination of bibliometric data reveals three developmental phases in cross-sectional research on BT and DTs: technology development, technology use, and technology deployment. These phases highlight the research field’s evolution and provide valuable direction for future studies on BT-enhanced DTs.

关键词: blockchain technology     digital twin     literature review     bibliometric analysis     research trend    

Conceptualising the nexus of projects, finance and capacity in construction business

Arun BAJRACHARYA, Stephen Olu OGUNLANA, Cheng Siew GOH, Hai Chen TAN

《工程管理前沿(英文)》 2018年 第5卷 第3期   页码 289-297 doi: 10.15302/J-FEM-2018021

摘要:

This paper addresses a research question on why construction companies fail in their business. Starting with the concept of growth and capacity underinvestment archetype, a new and operational systems thinking model is developed. The conceptual systems thinking model includes a set of causal structure that can explain various modes (including the growth and failure modes) of business performance of small and medium construction companies. Mainly the three components – projects, finance and capacity – and the understanding of their nexus (or causal inter-relationships) are found to be sufficient to reveal different performance modes in construction business. Further, the three operational aspects, namely, the business growth or decline process; the situation of financial and other capacity resource consumption; and the management of projects, finance and other capacity resources have been identified as the inter-related core and integral aspects of construction business. The three inter-related core aspects could actually include and explain different possible range of business situations, policies and practices in a construction company.

关键词: performance of construction business     projects     finance     capacity     systems thinking    

Hybrid energy harvesting systems for self-powered sustainable water purification by harnessing ambientenergy

《环境科学与工程前沿(英文)》 2023年 第17卷 第10期 doi: 10.1007/s11783-023-1718-9

摘要:

● Energy harvesters harness multiple energies for self-powered water purification.

关键词: Piezocatalysis     Solar energy     Waste heat     Decentralized water treatment     Point-of-use     Nanogenerator    

On water security, sustainability, and the water-food-energy-climate nexus

Michael Bruce BECK, Rodrigo VILLARROEL WALKER

《环境科学与工程前沿(英文)》 2013年 第7卷 第5期   页码 626-639 doi: 10.1007/s11783-013-0548-6

摘要: The role of water security in sustainable development and in the nexus of water, food, energy and climate interactions is examined from the starting point of the definition of water security offered by Grey and Sadoff. Much about the notion of security has to do with the presumption of scarcity in the resources required to meet human needs. The treatment of scarcity in mainstream economics is in turn examined, therefore, in relation to how each of us as individuals reconciles means with ends, a procedure at the core of the idea of sustainable development. According to the Grey-Sadoff definition, attaining water security amounts to achieving basic, single-sector water development as a precursor of more general, self-sustaining, multi-sectoral development. This is consistent with the way in which water is treated as “first among equals”, i.e. privileged, in thinking about what is key in achieving security around the nexus of water, food, energy and climate. Cities, of course, are locations where demands for these multiple resource-energy flows are increasingly being generated. The paper discusses two important facets of security, i.e., diversity of access to resources and services (such as sanitation) and resilience in the behavior of coupled human-built-natural systems. Eight quasi-operational principles, by which to gauge nexus security with respect to city buildings and infrastructure, are developed.

关键词: cities as forces for good     diversity     energy and nutrient recovery     green economy     infrastructure failure     resilience    

Cleaning the energy sources for water heating among Nanjing households: barriers and opportunities for

Lingyun ZHU,Beibei LIU,Jun BI

《环境科学与工程前沿(英文)》 2014年 第8卷 第5期   页码 757-766 doi: 10.1007/s11783-013-0603-3

摘要: Energy for water heating accounts for an increasing part in residential energy demand in China. An extensive survey was conducted to analyze the determinants of household energy choices for water heaters among residents in Nanjing, China. Two sets of variables were examined as potential influences: building features and household socio-economic characteristics. Results suggest that building features such as gas availability and building structures, and household characteristics such as household head’s education degree and energy-conserving sense are crucial determinants in choosing natural gas as water heater energy. Installation permission for solar water heater, building stories, and residential location serve as determining factors in choosing solar water heaters. Based on these, barriers and opportunities are discussed for transitions toward cleaner water heating energies, and suggestions are given for local governments to promote cleaner energy replacement in China.

关键词: residential energy demand     water heating     multinomial logit model    

Energy supply for water electrolysis systems using wind and solar energy to produce hydrogen: a case

Mostafa REZAEI, Ali MOSTAFAEIPOUR, Mojtaba QOLIPOUR, Mozhgan MOMENI

《能源前沿(英文)》 2019年 第13卷 第3期   页码 539-550 doi: 10.1007/s11708-019-0635-x

摘要: Due to acute problems caused by fossil fuels that threaten the environment, conducting research on other types of energy carriers that are clean and renewable is of great importance. Since in the past few years hydrogen has been introduced as the future fuel, the aim of this study is to evaluate wind and solar energy potentials in prone areas of Iran by the Weibull distribution function (WDF) and the Angstrom-Prescott (AP) equation for hydrogen production. To this end, the meteorological data of solar radiation and wind speed recorded at 10 m height in the time interval of 3 h in a five-year period have been used. The findings indicate that Manjil and Zahedan with yearly wind and solar energy densities of 6004 (kWh/m ) and 2247 (kWh/m ), respectively, have the greatest amount of energy among the other cities. After examining three different types of commercial wind turbines and photovoltaic (PV) systems, it becomes clear that by utilizing one set of Gamesa G47 turbine, 91 kg/d of hydrogen, which provides energy for 91 car/week, can be produced in Manjil and will save about 1347 L of gasoline in the week. Besides, by installing one thousand sets of X21-345 PV systems in Zahedan, 20 kg/d of hydrogen, enough for 20 cars per week, can be generated and 296 L of gasoline can be saved. Finally, the RETScreen software is used to calculate the annual CO emission reduction after replacing gasoline with the produced hydrogen.

关键词: wind energy     solar energy     water electrolysis     hydrogen production     Weibull distribution function (WDF)     Angstrom-Prescott (AP) equation    

Synergetic pathways of water-energy-carbon in ecologically vulnerable regions aiming for carbon neutrality

《环境科学与工程前沿(英文)》 doi: 10.1007/s11783-024-1866-6

摘要:

● A WECA model evaluates water withdrawal and WEQ of typical EVRs’ transition.

关键词: Carbon neutrality     Water withdrawals     Water environment quality     Ecologically vulnerable region     Typical regional transition    

Multifunctional carbon materials from rugose rose for energy storage and water purification

《化学科学与工程前沿(英文)》 doi: 10.1007/s11705-024-2447-8

摘要: With the advancement of social process, the resource problem is becoming more prominent, biomass materials come into being, and it is becoming more and more important to explore and prepare efficient and multifunctional biomass materials to alleviate the problems of energy storage and water pollution. In this paper, nitrogen-doped hierarchical porous carbon materials (NRRC) were produced by one-step carbonization of withered rose as raw material and melamine as nitrogen source with KOH-activated porosification. The resulting nitrogen-doped porous carbon material had the most abundant pores and the best microspherical graded pore structure, with a specific surface area of up to 1393 m2·g–1, a pore volume of 0.68 cm3·g–1, and a nitrogen-doped content of 5.52%. Electrochemical tests showed that the maximum specific capacitance of NRRC in the three-electrode system was 346.4 F·g–1 (0.5 A·g–1), which was combined with favorable capacitance retention performance and cycling stability. The NRRC//NRRC symmetric supercapacitors were further assembled, and the maximum energy density of a single device was 23.88 Wh·kg–1, which still maintains excellent capacitance retention and cyclic charging/discharging stability. For example, the capacitance retention rate was always close to 96.27% with almost negligible capacitance loss after 10000 consecutive charge/discharge cycles (current density: 10 A·g–1). Regardless of the three-electrode or two-electrode system, the super capacitive performance of NRRC porous carbon materials was comparable to the electrochemical performance of many reported biomass porous carbon materials, which showed better energy storage advantages and practical application potential. In addition, NRRC porous carbon materials had excellent water purification ability. The dye adsorption test confirmed that NRRC had a high adsorption capacity (491.47 mg·g–1) for methylene blue. This undoubtedly also showed a potential and promising avenue for high value-added utilization of this material.

关键词: rose     carbon     adsorption     electrode material     electrochemical performance    

标题 作者 时间 类型 操作

Water, energy and food interactions–Challenges and opportunities

Gustaf OLSSON

期刊论文

社会水循环系统水 – 能 – 碳纽带关系及低碳调控策略研究

王建华,朱永楠 ,李玲慧,李嘉欣,姜珊,何国华

期刊论文

The energy-environment nexus: aerosol science and technology enabling solutions

Pratim BISWAS, Wei-Ning WANG, Woo-Jin AN

期刊论文

Analysis of catchment evapotranspiration at different scales using bottom-up and top-down approaches

Xiangyu XU, Dawen YANG,

期刊论文

用跨学科网络组织化研究框架解释食物-能源-水的纽带关系

庄杰, Frank E. Löffler, Gary S. Sayler

期刊论文

食物-能源-水钮带关系研究能否与农业创新保持同步?

庄杰, Tom Gill, Frank E. Löffler, 金明洲, Gary S. Sayler

期刊论文

Nexus security: governance, innovation and the resilient city

Michael Bruce BECK, Rodrigo VILLARROEL WALKER

期刊论文

Examining the nexus of blockchain technology and digital twins: Bibliometric evidence and research trends

期刊论文

Conceptualising the nexus of projects, finance and capacity in construction business

Arun BAJRACHARYA, Stephen Olu OGUNLANA, Cheng Siew GOH, Hai Chen TAN

期刊论文

Hybrid energy harvesting systems for self-powered sustainable water purification by harnessing ambientenergy

期刊论文

On water security, sustainability, and the water-food-energy-climate nexus

Michael Bruce BECK, Rodrigo VILLARROEL WALKER

期刊论文

Cleaning the energy sources for water heating among Nanjing households: barriers and opportunities for

Lingyun ZHU,Beibei LIU,Jun BI

期刊论文

Energy supply for water electrolysis systems using wind and solar energy to produce hydrogen: a case

Mostafa REZAEI, Ali MOSTAFAEIPOUR, Mojtaba QOLIPOUR, Mozhgan MOMENI

期刊论文

Synergetic pathways of water-energy-carbon in ecologically vulnerable regions aiming for carbon neutrality

期刊论文

Multifunctional carbon materials from rugose rose for energy storage and water purification

期刊论文