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Analysis on carbon emission reduction intensity of fuel cell vehicles from a life-cycle perspective

《能源前沿（英文）》 doi: 10.1007/s11708-023-0909-1

摘要： The hydrogen fuel cell vehicle is rapidly developing in China for carbon reduction and neutrality. This paper evaluated the life-cycle cost and carbon emission of hydrogen energy via lots of field surveys, including hydrogen production and packing in chlor-alkali plants, transport by tube trailers, storage and refueling in hydrogen refueling stations (HRSs), and application for use in two different cities. It also conducted a comparative study for battery electric vehicles (BEVs) and internal combustion engine vehicles (ICEVs). The result indicates that hydrogen fuel cell vehicle (FCV) has the best environmental performance but the highest energy cost. However, a sufficient hydrogen supply can significantly reduce the carbon intensity and FCV energy cost of the current system. The carbon emission for FCV application has the potential to decrease by 73.1% in City A and 43.8% in City B. It only takes 11.0%–20.1% of the BEV emission and 8.2%–9.8% of the ICEV emission. The cost of FCV driving can be reduced by 39.1% in City A. Further improvement can be obtained with an economical and “greener” hydrogen production pathway.

关键词： hydrogen energy life-cycle assessment (LCA) fuel cell vehicle carbon emission energy cost

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Life-cycle cost analysis of optimal timing of pavement preservation

Zilong WANG,Hao WANG

《结构与土木工程前沿（英文）》 2017年第11卷第1期页码 17-26 doi: 10.1007/s11709-016-0369-3

摘要： Optimal application of pavement preservation or preventive maintenance is critical for highway agencies to allocate the limited budget for different treatments. This study developed an integrated life-cycle cost analysis (LCCA) model to quantify the impact of pavement preservation on agency cost and vehicle operation cost (VOC) and analyzed the optimal timing of preservation treatments. The international roughness index (IRI) data were extracted from the long-term pavement performance (LTPP) program specific pavement studies 3 (SPS-3) to determine the long-term effectiveness of preservation treatments on IRI deterioration. The traffic loading and the initial IRI value significantly affects life extension and the benefit of agency cost caused by pavement preservation. The benefit in VOC is one to two orders greater in magnitude as compared to the benefit in agency cost. The optimal timing calculated based on VOC is always earlier than the optimal timing calculated based on agency cost. There are considerable differences among the optimal timing of three preservation treatments.

关键词： pavement preservation life-cycle cost analysis agency cost vehicle operation cost

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Life-cycle assessment and techno-economic analysis of the production of wood vinegar from stem: a case

《化学科学与工程前沿（英文）》 2023年第17卷第8期页码 1109-1121 doi: 10.1007/s11705-022-2296-2

摘要： This research undertook a case study of the life-cycle assessment and techno-economic analysis of the slow pyrolysis of Eucommia stem for the production of wood vinegar and activated carbon. The results showed that the production of one ton of wood vinegar via the slow pyrolysis of Eucommia stem show comparatively low global warming potential (2.37 × 10² kg CO₂ eq), primary energy demand (3.16 × 10³ MJ), acidification potential (2.19 kg SO₂ eq), antimony depletion potential (3.86 × 10^–4 kg antimony eq), and ozone depletion potential (7.46 × 10^–6 kg CFC-11 eq) and was more environmentally friendly than the production of dilute acetic acid (12 wt %) via petrochemical routes. Meanwhile, the total capital investment, total product cost, and cash flowsheet were provided in the techno-economic analysis. Then, the net present value, internal rate of return, and dynamic payback period of the production process were evaluated. The findings indicated that while this production process is cost-effective, it might not be economically attractive or could generate investment risks. An increase in the added value of the wood vinegar and the activated carbon could remarkably improve the economic feasibility of this production process.

关键词： life-cycle assessment techno-economic analysis wood vinegar activated carbon Eucommia

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The Research on Subject Behavioral Risk of Whole Life-cycle Water Conservation Projects

Hong-yong Liu,Ji Guo,Wei-tao He

《工程管理前沿（英文）》 2014年第1卷第4期页码 348-352 doi: 10.15302/J-FEM-2014048

摘要： In 2011, water conservation projects construction in China entered a stage of rapid growth. In February 2013 three dam safety accidents occurred due to improper participant subject behaviors. Improving security and risk management of water conservation projects is therefore considered as imminent. It is urgent to research the risks of the participant subject behaviors. This article takes each participating subject in the whole life-cycle of water conservation projects as the research object, analyzes the risk behaviors and risk evolution processes, dissects the cause of the risks of the participating subject behaviors on the basis of the theory of risk effect, and puts forward that reinforcing the penalties, improving criminal cost and strengthening the engineering ethics education is an effective way to solve safety problems of the current projects.

关键词： water conservation projects subject behavior safety accident risk effect engineering ethics

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Avoiding the innovation island in infrastructure mega-project

Hongquan CHEN, Quanke SU, Saixing ZENG, Daxin SUN, Jonathan Jingsheng SHI

《工程管理前沿（英文）》 2018年第5卷第1期页码 109-124 doi: 10.15302/J-FEM-2018073

摘要： Infrastructure mega-project (IMP) innovation is a complex process characterized by highly diverse innovators, a dynamic life-cycle, and stickiness of innovation knowledge. The IMP’s innovation network can be easily broken due to the fact that the network involves many different innovators across different industries and different projects. Further reasons for the fragility of the IMP’s innovation network are the dynamics of the IMP life-cycle, the diversity of the IMP’s innovative entities, the uniqueness of each IMP, and the temporary nature of each IMP’s organizations. The formed by the breaking of an IMP’s innovation network can stifle and harm innovation performance. Drawing from the knowledge-based view as well as innovation network theory, our research identifies the heterogeneous characte- ristics of IMP innovation. We propose a framework to analyze the formation mechanism of the IMP innovation island from three dimensions—the , the , and the . We look at the Hong Kong-Zhuhai-Macao Bridge project to elaborate the innovation island concept that negatively impacts IMP innovation. We also offer theoretical implications regarding the broader question of how IMPs can manage their innovation in practice.

关键词： innovation in mega-infrastructure projects the diversity of innovation bodies life-cycle dynamics the unique and temporary nature of IMPs innovation island

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Life cycle cost savings analysis on traditional drainage systems from low impact development strategies

Pengfei ZHANG, Samuel T. ARIARATNAM

《工程管理前沿（英文）》 2021年第8卷第1期页码 88-97 doi: 10.1007/s42524-020-0063-y

摘要： Areas that are covered with natural vegetation have been converted into asphalt, concrete, or roofed structures and have increased surface impermeability and decreased natural drainage capability. Conventional drainage systems were built to mimic natural drainage patterns to prevent the occurrence of waterlogging in developed sites. These drainage systems consist of two major components: 1) a stormwater conduit system, and 2) a runoff storage system. Runoff storage systems contain retention basins and drywells that are used to store and percolate runoff, whereas conduit systems are combination of catch basins and conduit pipes used to collect and transport runoff. The construction of these drainage systems is costly and may cause significant environmental disturbance. In this study, low impact development (LID) methods that consist of extensive green roofs (GRs) and permeable interlocking concrete pavements (PICPs) are applied in real-world construction projects. Construction project documents were reviewed, and related cost information was gathered through the accepted bidding proposals and interviews of specialty contractors in the metropolitan area of Phoenix, Arizona. Results indicate that the application of both LID methods to existing projects can save an average of 27.2% in life cycle costs (LCC) for a 50-year service life and 18.7% in LCC for a 25-year service life on the proposed drainage system, respectively.

关键词： low impact development traditional drainage system hydraulic benefits life-cycle cost

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Life-cycle analysis of energy use and greenhouse gas emissions of gas-to-liquid fuel pathway from steel

Xunmin OU, Xu ZHANG, Qian ZHANG, Xiliang ZHANG

《能源前沿（英文）》 2013年第7卷第3期页码 263-270 doi: 10.1007/s11708-013-0263-9

摘要： The LanzaTech process can convert carbon monoxide-containing gases produced by industries, such as steel manufacturing, into valuable fuel products. The life-cycle analysis (LCA) of energy use and greenhouse gas emissions from the LanzaTech process has been developed for a Chinese setting using the original Tsinghua China Automotive LCA model along with a customized module developed principally for the process. The LCA results demonstrate that LanzaTech gas-to-liquid (GTL) processing in China’s steel manufacturing is favorable in terms of life-cycle fossil energy and can reduce greenhouse gas emissions by approximately 50% compared with the conventional petroleum gasoline. The LanzaTech process, therefore, shows advantages in both energy-savings and a reduction in greenhouse gas emissions when compared with most bio-ethanol production pathways in China.

关键词： life-cycle analysis (LCA) gas-to-liquid (GTL) LanzaTech process

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全生命周期成本分析框架下的电动公交充电器部署和车队管理 Article

曾子凌, 王帅安, 曲小波

《工程（英文）》 2023年第21卷第2期页码 45-60 doi: 10.1016/j.eng.2022.07.019

摘要：

尽管城市交通电气化快速发展，但电池电动公交车（EB）车队的系统规划和管理进展却较为落后。本研究首先综述了影响电池电动系统的基本问题，包括充电站部署、电池尺寸、公交车调度和生命周期分析。目前，EB系统的规划和运行是按顺序进行的，公交车调度是在公交车队和基础设施部署完毕后进行的，这导致了资源利用率低和资源浪费。对此，本文提出了混合整数规划模型整合充电站部署和公交车队管理，以尽可能低的生命周期成本（LCC），包括所有权、运营、维护和排放费用，缩小最佳规划与运营之间的差距。引入了分支定价算法，以减少寻找最佳解决方案所需的计算工作量。本研究还通过分析真实案
例，与目前的公交运营策略和充电站布局相比，一条公交线路的LCC优化后可显著降低30.4%。提出的方法不仅可以进行生命周期分析，还可以为交通部门和运营商提供可靠的充电桩部署及单线和多线的公交调度计划，这两者都是未来具有高电气化普及率的交通系统中决策支持的关键要求，此研究也有助于推动可持续交通的发展。

关键词：电动公交车充电站部署电池尺寸公交车调度生命周期分析

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新冠病毒肺炎疫情下基于区块链的医院全生命周期环境管理框架 Article

钟波涛, 高寒, 丁烈云, 王宇航

《工程（英文）》 2023年第20卷第1期页码 208-221 doi: 10.1016/j.eng.2022.06.024

摘要：

新冠病毒肺炎疫情持续蔓延，世界各国纷纷通过新建或改造的方式建设了一批应急医院。医院的全生命周期环境管理对预防新冠病毒肺炎院内感染至关重要。为应对病例的激增，新建医院往往需要快速交付使用，工期被极大地压缩，工作流程审批速度加快，无法按照常规流程进行质量检查和验收，增加了感染预防措施执行质量的控制难度。本研究探索了区块链技术在改造应急医院项目工作质量检查流程中的潜力，以保障快速建造模式下医院感染控制措施的有力执行。建立了基于区块链的全生命周期环境管理框架，用于追溯医院在设计、施工和运营阶段中关键感染控制措施的执行过程。当无法及时检查某些工序时，该框架能够支持工序完成后再检查。本研究通过用例阐述了该框架的具体功能和应用场景，为医院快速建造模式下的环境管理提供了基于区块链的解决方案。

关键词：区块链环境管理院内感染控制工作质量管理生命周期可追溯性

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大型公益项目全寿命周期过程集成模型及其支撑条件研究

张国宗,王永华,刘雄

《中国工程科学》 2014年第16卷第10期页码 106-112

摘要：

大型公益项目管理全寿命周期过程集成是指从项目决策、规划设计、实施、运行维护、结束等阶段的项目过程集成。本文以实现项目全寿命周期目标体系为目的，以系统观点、过程观点及价值工程思想为指导，研究了从项目策划、规划设计、实施到运营的全过程集成管理，及其不同阶段不同任务之间的相互关系和作用，建立了大型公益项目全寿命周期过程集成模型，并讨论了大型公益项目全寿命周期过程集成的支撑条件，实现项目全寿命周期的平衡与和谐，提高了项目投资效益和社会公益服务功能，从而提高了大型公益项目的价值。

关键词：大型公益项目全寿命周期过程集成支撑条件

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Energy systems engineering: methodologies and applications

Pei LIU, Efstratios N. PISTIKOPOULOS, Zheng LI

《能源前沿（英文）》 2010年第4卷第2期页码 131-142 doi: 10.1007/s11708-010-0035-8

摘要： Energy systems are the major contributor to ever-increasing primary energy consumption and consequent greenhouse gas emissions. To tackle these critical problems, planning and design of energy systems needs to be improved towards a more efficient, cost-effective, and environmentally benign direction. However, although there are many technical choices available, they are often developed separately by their own technical communities and driven by their specific interest, thus methods and experience obtained in planning and design of a certain type of energy systems are usually not applicable to other types of energy systems. Energy systems engineering provides a generic methodological framework to facilitate the planning and design of energy systems and to produce integrated solutions to real-life complex energy problems via a systematic approach.In this paper, we present an overview of key methodologies of energy systems engineering, covering superstructure based modelling, mixed-integer programming, multi-objective optimization, optimization under uncertainty, and life-cycle assessment. Applications of these methodologies in polygeneration energy systems design, hydrogen infrastructure planning, and design of energy systems in commercial buildings are provided to demonstrate the capability of these methodologies.

关键词： energy systems engineering superstructure mixed-integer programming multi-objective optimization optimization under uncertainty life-cycle assessment

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A comparison of production system life cycle models

Rajesh ATTRI, Sandeep GROVER

《机械工程前沿（英文）》 2012年第7卷第3期页码 305-311 doi: 10.1007/s11465-012-0332-5

摘要：

Companies today need to keep up with the rapidly changing market conditions to stay competitive. The main issues in this paper are related to a company’s market and its competitors. The prediction of market behavior is helpful for a manufacturing enterprise to build efficient production systems. However, these predictions are usually not reliable. A production system is required to adapt to changing markets, but such requirement entails higher cost. Hence, analyzing different life cycle models of the production system is necessary. In this paper, different life cycle models of the production system are compared to evaluate the distinctive features and the limitations of each model. Furthermore, the difference between product life cycle and production life cycle is summarized, and the effect of product life cycle on production life cycle is explained. Finally, a production system life cycle model, along with key activities to be performed in each stage, is proposed specifically for the manufacturing sector.

关键词： production system life cycle model product

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Application of blockchain in the field of intelligent manufacturing: Theoretical basis, realistic plights, and development suggestions

Qiang ZHANG, Baoyu LIAO, Shanlin YANG

《工程管理前沿（英文）》 2020年第7卷第4期页码 578-591 doi: 10.1007/s42524-020-0137-x

摘要： Blockchain technology is considered one of the promising technologies of the information technology era. The core features of blockchain, such as decentralization, transparency, high security, and tamper-proof nature, bring great convenience for large-scale social cooperation and data sharing. Blockchain has a broad application prospect in the field of intelligent manufacturing. The key issues of this field, such as distributed collaborative production, industrial big data sharing and security, transparent logistics, and supply chain, are naturally consistent with the core characteristics of the blockchain technology. This study aims to analyze the application of blockchain in the field of intelligent manufacturing. First, we introduce the basic connotation and applications of blockchain. Then, we propose the theoretical basis for the application of blockchain in the field of intelligent manufacturing. Finally, we point out the realistic plights and provide some suggestions to promote the application of blockchain in the field of intelligent manufacturing.

关键词： blockchain technology intelligent manufacturing networked collaborative manufacturing full life-cycle management manufacturing model innovation

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State-of-the-art applications of machine learning in the life cycle of solid waste management

《环境科学与工程前沿（英文）》 2023年第17卷第4期 doi: 10.1007/s11783-023-1644-x

摘要：

● State-of-the-art applications of machine learning (ML) in solid waste (SW) is presented.

关键词： Machine learning (ML) Solid waste (SW) Bibliometrics SW management Energy utilization Life cycle

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An updated review and conceptual model for optimizing WEEE management in China from a life cycle perspective

Xiaolong Song, Jingwei Wang, Jianxin Yang, Bin Lu

《环境科学与工程前沿（英文）》 2017年第11卷第5期 doi: 10.1007/s11783-017-0985-8

摘要： Waste electrical and electronic equipment (WEEE) is a rapidly growing category of solid waste. China is now facing WEEE problems from both growing domestic generation and illegal imports. Currently, the amount of WEEE formally treated has increased steadily in China. The layout of the formal sector has been basically completed. Meanwhile, by controlling illegal disassembly activities, the informal sector has been gradually transformed to formal one. Beginning with the overview of the WEEE recycling industry in China, this paper first lists the latest progress in WEEE management from such aspects as the new edition of China RoHS Directive (Restriction of Hazardous Substances Directive), the updated WEEE Treatment List, the updated WEEE fund standard, the revised National Hazardous Waste List, and a brand-new plan on extended producer responsibility. In so doing, we elucidate the current challenges on WEEE management in detail: the imbalance between fund levies and subsidies, the gap in the supervision scope, the homogenization of recycling industry and the lack of life cycle approaches. Finally, a conceptual framework for integrated management of WEEE is proposed from a life cycle perspective. Overall, the life cycle management of WEEE includes three aspects: developing life cycle information for decision-making, implementing life cycle engineering with life cycle tools, and improving WEEE legislation based on life cycle thinking. By providing specific operating strategies, this life cycle framework should help to optimize WEEE management in developing countries where legislation is imperfect and the recycling system is relatively immature.

关键词： Waste electrical and electronic equipment E-waste Life cycle management China