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Pathway to energy technical innovation and commercialization based on Internet plus DES

Huiping LIU

《能源前沿（英文）》 2016年第10卷第1期页码 65-78 doi: 10.1007/s11708-015-0391-5

摘要： The distributed energy system (DES) is a type of energy cascade utilization on the client side or close to the client, and it has become an important option of global energy transformation. In China, based on the experience of demonstration projects, the DES is now being commercialized. Under the new opportunity of energy production and consumption promoted by the national “Internet Plus” action plan, the development of the DES was reviewed in this paper; four categories of market demand and five key issues for DES deployment were analyzed; five types of potential DES users and five key points of technical path implementation proposed based on many years of engineering practices and hundreds of project case studies were proposed. 4E elements should be used to evaluate and choose the project and lead the innovation model of DES by energy production and consumption revolution with the sustainable development of the Internet plus DES. The future innovation models include intelligent energy modularity and menu-type services with the demands of the client side, and the kind of new thinking for DES services that “you are in charge of your own energy production and consumption, while we are also at service when needed for installation and maintenance.” The aim of innovation mode is to give the energy sovereign back to the people, and form a perfect Internet plus DES ecosystem.

关键词： “Internet Plus” distributed energy system (DES) business model technical innovation commercialization DES industry ecosystem energy revolution

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Family planning technical services in China

Shang-Chun WU

《医学前沿（英文）》 2010年第4卷第3期页码 285-289 doi: 10.1007/s11684-010-0097-3

摘要： Family planning is a basic state policy in China. Its aim is to control population growth and to enhance population quality. Technical services are the key measures for implementing the family planning policy. In order to ensure that people use safe, effective, and appropriate contraceptive methods based on the government’s commitment, China has established countrywide family planning service networks down to the township level. The people can access various and convenient contraceptive services. In urban areas, all contraceptive services are free. The contraceptive prevalence rate in 2007 was 84.6%, the percentage of intrauterine device (IUD) was 52.3%, that of female sterilization was 32.3%, and that of vasectomy was 6.1%. This means that more than 90% of married childbearing couples were using long-term contraceptives. At the same time, the government gives priority to supporting research on contraceptive technology. Studies’ results have provided scientific evidence for development, introduction, and expansion of contraceptive methods, and also for establishment and revision of the technical guidelines. Great efforts have been made in promoting “human-oriented and client-centered” services during the recent ten years. Remarkable success has been achieved in improving the quality of technical services.

关键词： family planning contraceptive method service delivery

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Creating technical heritage object replicas in a virtual environment

Olga EGOROVA,Dmitry SHCHERBININ

《机械工程前沿（英文）》 2016年第11卷第1期页码 108-115 doi: 10.1007/s11465-016-0363-4

摘要：

The paper presents innovative informatics methods for creating virtual technical heritage replicas, which are of significant scientific and practical importance not only to researchers but to the public in general. By performing 3D modeling and animation of aircrafts, spaceships, architectural-engineering buildings, and other technical objects, the process of learning is achieved while promoting the preservation of the replicas for future generations. Modern approaches based on the wide usage of computer technologies attract a greater number of young people to explore the history of science and technology and renew their interest in the field of mechanical engineering.

关键词： 3D document history of science and technology technical knowledge popularization virtual environment replica mechanism and machine science (MMS)

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On Social-technical Control of Safety Development in Economic Transition Background

Xue-qiu He,Song Li

《工程管理前沿（英文）》 2015年第2卷第3期页码 234-240 doi: 10.15302/J-FEM-2015025

摘要： Industrial safety and economic growth, two vital and inextricable forces affecting national culture and development, are worthy of much more interest and attention than this article can hope to generate. Following economic growth, industrial safety remains as a high priority in this nation’s quest for sustainable development. At present, while China is on its way to transforming its economic structure and growth models, talk of industrial safety appears with special regularity, for it also is undergoing profound changes as an important facet of modern China.

关键词： safety development economic growth economic transition social-technical control

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Characteristics Analysis of Integrated CAES and CFPP Trigeneration System Considering Working Conditions and Application Scenarios

Jiajia Li,Peigang Yan,Guowen Zhou,Xingshuo Li,Qiang Li,Jinfu Liu,Daren Yu,

《工程（英文）》 doi: 10.1016/j.eng.2023.06.015

摘要： To meet the goal of worldwide decarbonization, the transformation process toward clean and green energy structures has accelerated. In this context, coal-fired power plant (CFPPs) and large-scale energy storage represented by compressed air energy storage (CAES) technology, are tasked with increasing renewable resource accommodation and maintaining the power system security. To achieve this, this paper proposes the concept of a CFPP–CAES combined cycle and a trigenerative system based on that. Considering the working conditions of the CFPP, thermal characteristics of three typical operation modes were studied and some general regularities were identified. The results of various potential integration schemes discussion indicated that extracting water from low-temperature points in the feedwater system to cool pressurized air and simultaneously increase the backwater temperature is beneficial for improving performance. In addition, preheating the pressurized air before the air expanders via low-grade water in the feedwater system as much as possible and reducing extracted steam contribute to increasing the efficiency. With the optimal integration scheme, 2.85 tonnes of coal can be saved per cycle and the round-trip efficiency can be increased by 2.24%. Through the cogeneration of heat and power, the system efficiency can reach 77.5%. In addition, the contribution degree of the three compression heat utilization methods to the performance improvement ranked from high to low, is preheating the feedwater before the boiler, supplying heat, and flowing into the CFPP feedwater system. In the cooling energy generation mode, the system efficiency can be increased to over 69%. Regardless of the operation mode, the benefit produced by integration is further enhanced when the CFPP operates at higher operating conditions because the coupling points parameters are changed. In addition, the dynamic payback period can be shortened by 11.33 years and the internal rate of return increases by 5.20% under a typical application scenario. Regarding the effect of different application scenarios in terms of economics, investing in the proposed system is more appropriate in regions with multiple energy demands, especially heating demand. These results demonstrate the technical advantages of the proposed system and provide guiding principles for its design, operation, and project investment.

关键词： Compressed air energy storage CFPP–CAES combined cycle Thermodynamic performance Technical economics

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IMPACTS OF TECHNICAL ENVIRONMENT ON THE ADOPTION OF ORGANIC FERTILIZERS AND BIOPESTICIDES AMONG FARMERS

《农业科学与工程前沿（英文）》 2023年第10卷第1期页码 31-47 doi: 10.15302/J-FASE-2023482

摘要：

● Farmer adoption of organic fertilizer and biopesticides was found to be positively correlated.

关键词： biopesticides green production organic fertilizer technical environment

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Influences of Technical Innovation Mode on Innovation Strategy of Energy Enterprises

Lu Zhang,Dan-dan Wang,Min Wang,Ning Hui

《工程管理前沿（英文）》 2016年第3卷第3期页码 283-289 doi: 10.15302/J-FEM-2016048

摘要： Technical innovation is the core for enterprise competence and sustaining. Technical innovation strategy is the policy which the enterprise carries out for technology innovation in a long term. The paper took the practice of the technology innovation strategy in PetroChina Chang- qing Oilfield Company as a case study, and illustrated the significance, function and features of the self-developed technology innovation, cooperation development technology innovation and introduction-innovation based on the strategy structure of the energy enterprises. The suggestions for technology innovation strategy structure for large energy enterprise were proposed in the paper.

关键词： energy enterprise technical innovation innovation strategy

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基于体系能力的舰船装备保障工程规划

朱石坚

《中国工程科学》 2014年第16卷第10期页码 71-76

摘要：

针对舰船装备保障这一复杂巨系统工程管理实际，结合保障能力建设综合性、系统性、复杂性等特点，研究了舰船装备保障目标确定及分解方法，分析了军民融合式保障发展规律和需求，提出了基于装备通用化程度、技术含量、使用频率和保障风险的保障分工决策模型，研究了按体系构建保障能力的管理框架与建设路线。工程实践表明，该方法能够满足新形势对舰船装备保障的要求，有效提高舰船装备保障工程质量和效益，持续保持舰船装备战备完好性水平，实现复杂巨系统工程管理的科学化和规范化。

关键词：工程管理舰船装备技术保障规划

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Evaluating R&D efficiency of China’s listed lithium battery enterprises

《工程管理前沿（英文）》页码 473-485 doi: 10.1007/s42524-022-0213-5

摘要： Promoting the growth of the lithium battery sector has been a critical aspect of China’s energy policy in terms of achieving carbon neutrality. However, despite significant support on research and development (R&D) investments that have resulted in increasing size, the sector seems to be falling behind in technological areas. To guide future policies and understand proper ways of promoting R&D efficiency, we looked into the lithium battery industry of China. Specifically, data envelopment analysis (DEA) was used as the primary approach based on evidence from 22 listed lithium battery enterprises. The performance of the five leading players was compared with that of the industry as a whole. Results revealed little indication of a meaningful improvement in R&D efficiency throughout our sample from 2010 to 2019. However, during this period, a significant increase in R&D expenditure was witnessed. This finding was supported, as the results showed that the average technical efficiency of the 22 enterprises was 0.442, whereas the average pure technical efficiency was at 0.503, thus suggesting that they were suffering from decreasing returns to scale (DRS). In contrast, the performance of the five leading players seemed superior because their average efficiency scores were higher than the industry’s average. Moreover, they were experiencing increasing scale efficiency (IRS). We draw on these findings to suggest to policymakers that supporting technologically intensive sectors should be more than simply increasing investment scale; rather, it should also encompass assisting businesses in developing efficient managerial processes for R&D.

关键词： Data Envelopment Analysis R&D investment efficiency China’s listed lithium battery enterprises technical efficiency pure technical efficiency scale efficiency

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Key technical innovations in the construction of Baihetan Hydropower Station Project

《工程管理前沿（英文）》 2023年第10卷第2期页码 367-372 doi: 10.1007/s42524-023-0253-5

摘要： Key technical innovations in the construction of Baihetan Hydropower Station Project

关键词： ultra-high arch dam columnar jointed basalt low-heat cement concrete temperature controlled crack prevention million-kilowatt unit intelligent construction

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中国铁路高速道岔技术研究

何华武

《中国工程科学》 2009年第11卷第5期页码 23-30

摘要：

高速道岔是高速铁路轨道结构的关键，其结构与状态对列车运行安全和运行品质具有重大影响。文章介绍了高速道岔设计参数和平面线形，扣件、岔枕、道岔转换系统等部件主要结构特征，高速道岔设计理论，相关技术条件及取得的创新成果，对于中国高速铁路道岔的进一步研制、试验验证及推广使用具有重要的指导意义。

关键词：高速铁路高速道岔技术研究

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Techno-economic assessment of pulverized coal boilers and IGCC power plants with CO 2 capture

Y. HUANG, S. REZVANI, D. McILVEEN-WRIGHT, N. HEWITT, J. MONDOL, A. MINCHENER,

《化学科学与工程前沿（英文）》 2010年第4卷第2期页码 196-206 doi: 10.1007/s11705-009-0237-y

摘要： The current studies on power plant technologies suggest that Integrated Gasification Combined Cycle (IGCC) systems are an effective and economic CO capture technology pathway. In addition, the system in conventional configuration has the advantage of being more “CO capture ready” than other technologies. Pulverized coal boilers (PC) have, however, proven high technical performance attributes and are economically often most practical technologies. To highlight the pros and cons of both technologies in connection with an integrated CO capture, a comparative analysis of ultrasupercritical PC and IGCC is carried out in this paper. The technical design, the mass and energy balance and the system optimizations are implemented by using the ECLIPSE chemical plant simulation software package. Built upon these technologies, the COcapture facilities are incorporated within the system. The most appropriate CO capture systems for the PC system selected for this work are the oxy-fuel system and the postcombustion scheme using Monoethanolamine solvent scrubber column (MEA). The IGCC systems are designed in two configurations: Water gas shift reactor and Selexol-based separation. Both options generate CO-rich and hydrogen rich-gas streams. Following the comparative analysis of the technical performance attributes of the above cycles, the economic assessment is carried out using the economic toolbox of ECLIPSE is seamlessly connected to the results of the mass and energy balance as well as the utility usages. The total cost assessment is implemented according to the step-count exponential costing method using the dominant factors and/or a combination of parameters. Subsequently, based on a set of assumptions, the net present value estimation is implemented to calculate the breakeven electricity selling prices and the CO avoidance cost.

关键词： breakeven electricity ECLIPSE technical performance appropriate economic

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Development and technical progress in large-scale circulating fluidized bed boiler in China

Zhong HUANG, Lei DENG, Defu CHE

《能源前沿（英文）》 2020年第14卷第4期页码 699-714 doi: 10.1007/s11708-020-0666-3

摘要： Circulating fluidized bed (CFB) boilers has realized the clean and efficient utilization of inferior coal like gangue and coal slime, high sulfur coal, anthracite, petroleum coke, oil shale and other resources. As a country with the largest amount of CFB boilers and the largest installed capacity in the world, China has 440 100–600 MW CFB boilers with a total capacity of 82.29 GW , including 227 units of 135 MW , 95 units of 300 MW , and 24 supercritical units. The statistics of typical 100–300 MW CFB boilers showed that the average number of unplanned shut-down was only 0.37 times per year, among which the 135 MW was 0.26 times per year and 300 MW was 0.46 times per year. The auxiliary power ratio of some 300 MW CFB boilers based on flow-pattern reconstruction can be reduced to about 4%, which is closed to the same level of pulverized coal (PC) boilers. This paper summarizes the development process and application status of China’s large-scale CFB boilers, analyzes the characteristics and technical performance of the iconic units, and introduces solutions to the problems such as water wall wear and bottom ash cooling.

关键词： CFB boiler installed capacity reliability economics ultra-low emission China

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中国农业生态工程的主要技术类型

卞有生

《中国工程科学》 1999年第1卷第2期页码 83-86

摘要：

农业生态工程是生态农业建设的重要内容，是实施生态农业建设的重要措施和技术手段。其实质是应用生态学原理，结合系统工程方法和现代技术手段，建立农业资源高效利用的生产方式和实施农业可持续发展的技术体系。作者在理论研究和多年实践的基础上，系统总结、介绍了当前我国农业生态工程10种主要的技术类型：充分利用空间和土地资源的农林立体结构生态系统；物质能量多层分级利用系统；水陆交换的物质循环生态系统；相互促进的生物物种共生生态系统；农-渔-禽水生生态系统；多功能的污水自净工程系统；山区综合开发的复合生态系统；沿海滩涂和荡滩资源开发利用的湿地生态系统；以庭院经济为主的院落生态系统；多功能的农副工联合生态系统。

关键词：农业生态工程生态农业技术类型