Biomass power generation： toward a sustainable energy future

16 October, 2005 was a day of celebration for the Guangzhou Institute of Energy Conversion(GIEC), CAS, as its technology ofbiomass gasification and power generation (BGPG) was chosen by an evaluation panel of the United Nations Industrial Development Organization as one of the 10 top investment scenarios to apply new technologies for renewable energy utilization.     

基于工程造价及发电成本的核电与火电比较研究

为了更为本质地反映核电和火电各自的特点,选取工程造价和发电成本两个指标,以广东省内高效环保火电与核电为例进行详细计算和全面比较,从而客观公正地对核电和火电的发展作出评价。核电的国产化比例达到60％～70％时,可降低造价35％～40％,单位千瓦建成价约为火电的2～3倍。预计20～30年内,核电与火电的发电成本基本一致。发展我国核电要走自主化、国产化之路,也是降低其成本的主要途径。     

On the impact of quantum computing technology on future developments in high-performance scientific computing

Quantum computing technologies have become a hot topic in academia and industry receiving much attention and financial support from all sides. Building a quantum computer that can be used practically is in itself an outstanding challenge that has become the ‘new race to the moon’. Next to researchers and vendors of future computing technologies, national authorities are showing strong interest in maturing this technology due to its known potential to break many of today’s encryption techniques, which would have significant and potentially disruptive impact on our society. It is, however, quite likely that quantum computing has beneficial impact on many computational disciplines. In this article we describe our vision of future developments in scientific computing that would be enabled by the advent of software-programmable quantum computers. We thereby assume that quantum computers will form part of a hybrid accelerated computing platform like GPUs and co-processor cards do today. In particular, we address the potential of quantum algorithms to bring major breakthroughs in applied mathematics and its applications. Finally, we give several examples that demonstrate the possible impact of quantum-accelerated scientific computing on society.     

Monolithic integrated MXene supercapacitors may power future electronics

<正>Electrolytic capacitors and batteries are the largest components in portable electronics.Can they be replaced by fully integrated devices capable of performing functions ranging from energy storage to AC line-filtering and providing power pulses for communication?Wearable,flexible,transparent and epidermal electronics,micro-robots,and Internet of Things devices,will all require compact energy storage solutions.     

可再生能源发电与我国电力的可持续发展

可再生能源是指那些永远不会枯竭,可以持续使用的清洁能源,这些能源包括风能、太阳能、生物质能、地热能、海洋能、小水电(电站的装机容量在5万千瓦以下),对当地的、区域的和全球的环境保护都是友好的能源。     

国外沼气发电产业动态及其在中国的发展

介绍了近年来国外沼气发电产业的开发应用现状,生产技术进展,及发展沼气发电的相关政策和质量标准,为我国沼气工程与发电技术的发展提出了一些建议,最后展望了沼气发电技术的发展前景.     

A demo device for new approach of wave power generation

In cooperation with Chuanshiyu Machinery Co., Ltd., researchers with the CAS Institute ofElectrical Engineering （IEE） have worked out a demonstration device that employs a novel approach to converting the energy harbored by sea waves into electricity.     

浅谈太阳能发电技术中创新能力的培养

传统的教育理念缺少实践性和创造力,如何在教学过程中培养学生"动手能力、综合能力、创新能力"是教学改革的重点之一。以太阳能发电技术为研究平台,科教融合,激发学生学习兴趣和积极性,从而提高学生实践能力,创新能力。     

浅谈新能源发电给生产和生活带来的影响

在21世纪的今天,随着经济、文化、政治等的发展,世界能源结构也在不断的发生改变。人们亟待解决一次能源的大量消耗导致全球能源短缺和气候恶化等问题。新型能源,如太阳能、风能、地热能、潮汐能、生物质能等能源的出现使得能源短缺的部分问题得到了解决,地球的生态环境得以改善,给人们的生产生活提供极大便利。     

建设西藏自然科学博物馆功在千秋

神奇壮观的地球之巅,色彩斑斓的世界屋脊蕴育着青藏高原千奇百态的山川奇峰、包容着万千物种的繁衍生息,无限灿烂的绮丽风光与积淀厚重的人文美。通过博物馆形式,采用现代科技手段,浓缩和凝聚美伦美奂的天上西藏,充分突现青藏高原隆起所产生的地球之巅的恢弘气势,展示世界独一无二的壮观景色和丰富的自然资源,弘扬民族优秀文化、     

论债权人的代位权制度

我国合同法首次以法律的形式确立了债权人代位权制度,它是对债的相对性原则的例外和突破, 对维护债权人利益,维护交易安全方面起到了重要的积极作用。但在法律规定和司法实践上还存在着一定的不足,仍需完善。     

如何提高水泥窑余热发电能力

通过分析研究余热电站的主要问题,采取技改措施提高机组的主参数,锅炉的旁通挡板改进,提高锅炉换热效率,加强发电系统与窑系统操作配合等提高水泥窑纯低温余热发电的能力。     

从当前缺电看我国电力工业发展

电力工业是国民经济的基础产业和先行官。新中国成立以来,电力工业不断迈上新台阶:全国发电装机自1987年迈上100GW台阶后(注:1GW=1×109W),1995年、2000年和2004年分别跨过200GW、300GW和400GW,2004年底超过440GW。发电装机和发电量从1996年起一直位居世界第2位;500千伏电网已成为区域和省级骨干网架,已经相继跨     

Future developments in transportation

Nearly all prognostigators, from the fellow who buys a $2 ticket on Blue Boy to the financial policy-makers of government and business, base their final conclusions upon past experience. Properly tempered (and herein lies the success or failure of the prophet), this is a completely logical procedure, and is especially applicable to engineering trends, for most of our technical progress has been achieved through a process of evolution.Thus, one of the best ways to gain an insight as to the direction in which we're going is to note our present position and to review how we reached it.In the preceding discussion, I have tried to cover a few specific phases of our transportation future in just this fashion, in order to emphasize that we can expect tomorrow further applications and extensions of the things we are working with today.     

Automatic generation control of two-area electrical power systems via optimal fuzzy classical controller

The interconnected large-scale power systems are liable to performance degradation under the presence of sudden small load demands, parameter ambiguity and structural changes. Due to this, to supply reliable electric power with good quality, robust and intelligent control strategies are extremely requisite in automatic generation control (AGC) of power systems. Hence, this paper presents an output scaling factor (SF) based fuzzy classical controller to enrich AGC conduct of two-area electrical power systems. An implementation of imperialist competitive algorithm (ICA) is made to optimize the output SF of fuzzy proportional integral (FPI) controller employing integral of squared error criterion. Initially the study is conducted on a well accepted two-area non-reheat thermal system with and without considering the appropriate generation rate constraint (GRC). The advantage of the proposed controller is illustrated by comparing the results with fuzzy controller and bacterial foraging optimization algorithm (BFOA)/genetic algorithm (GA)/particle swarm optimization (PSO)/hybrid BFOA-PSO algorithm/firefly algorithm (FA)/hybrid FA-pattern search (hFA-PS) optimized PI/PID controller prevalent in the literature. The proposed approach is further extended to a newly emerged two-area reheat thermal-PV system. The superiority of the method is depicted by contrasting the results of GA/FA tuned PI controller. The proposed control approach is also implemented on a multi-unit multi-source hydrothermal power system and its advantage is established by Correlating its results with GA/hFA-PS tuned PI, hFA-PS/grey wolf optimization (GWO) tuned PID and BFOA tuned FPI controllers. Finally, a sensitivity analysis is performed to demonstrate the robustness of the proposed method to broad changes in the system parameters and size and/or location of step load perturbation.