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Evaluation of the power consumption of a high-speed parallel robot
Gang HAN, Fugui XIE, Xin-Jun LIU
《机械工程前沿(英文)》 2018年 第13卷 第2期 页码 167-178 doi: 10.1007/s11465-017-0456-8
An inverse dynamic model of a high-speed parallel robot is established based on the virtual work principle. With this dynamic model, a new evaluation method is proposed to measure the power consumption of the robot during pick-and-place tasks. The power vector is extended in this method and used to represent the collinear velocity and acceleration of the moving platform. Afterward, several dynamic performance indices, which are homogenous and possess obvious physical meanings, are proposed. These indices can evaluate the power input and output transmissibility of the robot in a workspace. The distributions of the power input and output transmissibility of the high-speed parallel robot are derived with these indices and clearly illustrated in atlases. Furtherly, a low-power-consumption workspace is selected for the robot.
关键词: high-speed parallel robot dynamic model power consumption evaluation method power vector
Efficient utilization of wind power: Long-distance transmission or local consumption?
Yuanzhang SUN, Xiyuan MA, Jian XU, Yi BAO, Siyang LIAO
《机械工程前沿(英文)》 2017年 第12卷 第3期 页码 440-455 doi: 10.1007/s11465-017-0440-3
Excess wind power produced in wind-intensive areas is normally delivered to remote load centers via long-distance transmission lines. This paper presents a comparison between long-distance transmission, which has gained popularity, and local energy consumption, in which a fraction of the generated wind power can be locally consumed by energy-intensive industries. First, the challenges and solutions to the long-distance transmission and local consumption of wind power are presented. Then, the two approaches to the utilization of wind power are compared in terms of system security, reliability, cost, and capability to utilize wind energy. Finally, the economic feasibility and technical feasibility of the local consumption of wind power are demonstrated by a large and isolated industrial power system, or supermicrogrid, in China. The coal-fired generators together with the short-term interruptible electrolytic aluminum load in the supermicrogrid are able to compensate for the intermittency of wind power. In the long term, the transfer of high-energy-consumption industries to wind-rich areas and their local consumption of the available wind power are beneficial.
关键词: wind power long-distance transmission local consumption supermicrogrid
Lin Yang, Wenpeng Li, Junheng Guo, Wei Li, Baoguo Wang, Minqing Zhang, Jinli Zhang
《化学科学与工程前沿(英文)》 2021年 第15卷 第2期 页码 384-398 doi: 10.1007/s11705-020-1928-7
关键词: jet-flow high shear mixer solid particle dissolution power consumption characteristics CFD Simulation
A low power consumption control scheme: application to a piezostack-based active mount
T. LOUKIL, O. BAREILLE, M. N. ICHCHOU, M. HADDAR
《机械工程前沿(英文)》 2013年 第8卷 第4期 页码 383-389 doi: 10.1007/s11465-013-0274-6
Piezostack-based active mounts have shown great efficiency for vibration control in a wide frequency range. In this paper, we investigate the performances of the global semi-active control strategy presented by Ichchou et al. [ ] for a control system consisting of an active mount and a supported mass. The control strategy allows extracting vibrations energy of the supported mass, storing it in accumulators to be reused for powering in part the actuators (two piezostacks). Consequently, energy needs are reduced versus good control performances comparable to those of the active control based on the negative velocity feedback. The performances of the controller are evaluated in both frequency (transmitted force) and time (acceleration) domains which show that vibrations of the supported mass due to base excitations are efficiently attenuated with the proposed law. An energetic analysis confirms the reduced energy requirement compared to the active scheme.
Real drive cycles analysis by ordered power methodology applied to fuel consumption, CO
Pol Masclans Abelló, Vicente Medina Iglesias, M. Antonia de los Santos López, Jesús Álvarez-Flórez
《环境科学与工程前沿(英文)》 2021年 第15卷 第1期 doi: 10.1007/s11783-020-1296-z
关键词: Cycle Analysis by Ordered Power (CAbOP) Micro and macro models Real drive cycle NOx/PM10/CO2 emissions Wheel mechanical power domain Worldwide Harmonized Light-Duty Vehicles Test Cycle (WLTC)
Weiliang WANG, Junfu LYU, Zheng LI, Hai ZHANG, Guangxi YUE, Weidou NI
《能源前沿(英文)》 2019年 第13卷 第4期 页码 798-807 doi: 10.1007/s11708-019-0633-z
关键词: coal-fired power energy conservation net coal consumption rate new installation phasing out backward production unit capacity structure
余 波,曹 晨,顾为东
《中国工程科学》 2015年 第17卷 第3期 页码 100-106
本文以年产1×109 m3煤制天然气工艺为例,采用Shell干粉气化技术,比较了传统煤制天然气工艺和风电/煤制天然气耦合情况下,工艺过程中(从煤气化到水煤气变换)的设备投资、运行费用以及CO2排放特性,结果表明,尽管风电电解水系统完全取代空分系统和水煤气变换系统设备投资巨大,但是其年平均运行费用(设备折旧、原料、电耗)却最低,CO2排放量为传统煤制天然气工艺的1.3 %,为煤制天然气产业发展提供一个参考。
Impact of oxygen enriched combustion on the performance of a single cylinder diesel engine
K. RAJKUMAR, P. GOVINDARAJAN
《能源前沿(英文)》 2011年 第5卷 第4期 页码 398-403 doi: 10.1007/s11708-011-0157-7
关键词: oxygen enriched combustion exhaust gas temperature brake power (BP) specific fuel consumption (SFC)
An energy consumption prediction approach of die casting machines driven by product parameters
《机械工程前沿(英文)》 2021年 第16卷 第4期 页码 868-886 doi: 10.1007/s11465-021-0656-0
关键词: die casting machine energy consumption prediction product parameters
Energy consumption of 270 schools in Tianjin, China
Jincheng XING,Junjie CHEN,Jihong LING
《能源前沿(英文)》 2015年 第9卷 第2期 页码 217-230 doi: 10.1007/s11708-015-0352-z
关键词: schools energy consumption index primary energy energy saving regression analysis
岑可法,倪明江,高翔,骆仲泱,王智化,郑成航
《中国工程科学》 2015年 第17卷 第9期 页码 49-55
近年来,我国大气复合污染问题日益突出,燃煤是造成大气污染的主要原因之一,我国电力行业耗煤量约占全国耗煤总量的一半,实现燃煤电厂烟气污染物高效控制是重中之重。本文介绍了我国煤炭清洁发电实现超低排放的最新进展及未来发展前景。通过理论研究、技术研发及集成应用,形成了符合我国国情的燃煤烟气污染物超低排放技术路线,建立了超低排放清洁环保岛,实现了污染物排放优于天然气机组排放标准限值,为我国大气污染防治特别是高用能密度区域的污染物减排提供了一条重要出路。研究综述了近年来我国超低排放技术的示范应用情况,通过费效分析表明超低排放可实现污染物大幅度减排,具有良好的环境、经济和社会效益。未来,我国燃煤电厂还将进一步发展烟气污染物深度脱除技术及二氧化碳捕集技术,最终实现燃煤烟气污染物的近零排放,为建设全世界最清洁的燃煤电厂奠定坚实的技术基础。
Energy consumption and carbon emissions of hospitals in Tianjin
Chongxu JIANG, Jincheng XING, Jihong LING, Xiaona QIN
《能源前沿(英文)》 2012年 第6卷 第4期 页码 427-435 doi: 10.1007/s11708-012-0199-5
关键词: hospital building energy consumption carbon emissions energy saving emission reduction
Survey and analysis of energy consumption in office buildings in Tianjin
Junlong LI, Huan ZHANG, Shijun YOU, Zhenhui XIE
《能源前沿(英文)》 2013年 第7卷 第1期 页码 69-74 doi: 10.1007/s11708-012-0221-y
关键词: office building energy consumption intensity energy consumption breakdown energy saving measures
江亿,朱安东,郭偲悦
《中国工程科学》 2015年 第17卷 第8期 页码 122-131
根据使用过程特征,可以将用能行为分成生产领域用能与消费领域用能。前者提供产品,后者提供服务。消费领域与生产领域用能存在不同特征,其评价方法、节能途径、战略政策等也存在差别。考虑到这一领域能耗可能是我国下一阶段能耗增长点,在节能领域需要对其给予足够的重视。本文在分析消费领域用能特征的基础上,提出对其的衡量方式和节能途径,并针对我国目前消费领域用能的现状给出建议。
关键词: 消费领域;生产领域;能耗;特征
Decomposition and decoupling analysis of electricity consumption carbon emissions in China
《工程管理前沿(英文)》 页码 486-498 doi: 10.1007/s42524-022-0215-3
关键词: electricity consumption carbon emission measurement LMDI model decoupling model data driven
标题 作者 时间 类型 操作
Evaluation of the power consumption of a high-speed parallel robot
Gang HAN, Fugui XIE, Xin-Jun LIU
期刊论文
Efficient utilization of wind power: Long-distance transmission or local consumption?
Yuanzhang SUN, Xiyuan MA, Jian XU, Yi BAO, Siyang LIAO
期刊论文
Effects of rotor and stator geometry on dissolution process and power consumption in jet-flow high shear
Lin Yang, Wenpeng Li, Junheng Guo, Wei Li, Baoguo Wang, Minqing Zhang, Jinli Zhang
期刊论文
A low power consumption control scheme: application to a piezostack-based active mount
T. LOUKIL, O. BAREILLE, M. N. ICHCHOU, M. HADDAR
期刊论文
Real drive cycles analysis by ordered power methodology applied to fuel consumption, CO
Pol Masclans Abelló, Vicente Medina Iglesias, M. Antonia de los Santos López, Jesús Álvarez-Flórez
期刊论文
Energy conservation in China’s coal-fired power industry by installing advanced units and organized phasing
Weiliang WANG, Junfu LYU, Zheng LI, Hai ZHANG, Guangxi YUE, Weidou NI
期刊论文
Impact of oxygen enriched combustion on the performance of a single cylinder diesel engine
K. RAJKUMAR, P. GOVINDARAJAN
期刊论文
Energy consumption and carbon emissions of hospitals in Tianjin
Chongxu JIANG, Jincheng XING, Jihong LING, Xiaona QIN
期刊论文
Survey and analysis of energy consumption in office buildings in Tianjin
Junlong LI, Huan ZHANG, Shijun YOU, Zhenhui XIE
期刊论文