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气氛对神木煤部分气化煤焦再气化动力学参数的影响

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燃料化学学报 2004年第2期32卷 151-154页

作者：向银花李海滨黄戒介张建民王洋中国科学院山西煤炭化学研究所山西太原030001 中国科学院广州能源研究所广东广州510640 上海理工大学动力工程学院上海200093

在小型固定床上制备了一系列的神木煤部分气化煤焦,运用热天平分析了它们在不同气氛下的再气化动力学行为。结果表明,部分气化煤焦再气化动力学参数随部分气化煤焦气化率的变化而有规律的变化。在H2.气氛下再气化时,随着部分气化煤焦气... 详细信息

在小型固定床上制备了一系列的神木煤部分气化煤焦,运用热天平分析了它们在不同气氛下的再气化动力学行为。结果表明,部分气化煤焦再气化动力学参数随部分气化煤焦气化率的变化而有规律的变化。在H2.气氛下再气化时,随着部分气化煤焦气化率的增加,活化能、指前因子与气化剂分压指数减小;在CO2.氛下再气化时,结果则有所不同,随着部分气化煤焦气化率的增加,活化能与指前因子增加,气化剂分压指数减小;无论何种气氛下再气化时,部分气化煤焦的活化能与指前因子均具有补偿效应。

关键词：部分气化煤焦再气化动力学参数补偿效应

CuZn(Zr,Ce)AlO在甲醇氧化水蒸气重整制氢中的研究

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天然气化工—C1化学与化工 2004年第1期29卷 11-14页

作者：李永峰董新法林维明华南理工大学化工学院

对甲醇氧化水蒸气重整制氢(OSRM)反应中CuZn(Zr,Ce)AlO催化剂的反应性能进行了研究,发现Zr和Ce的加入不但可以提高甲醇的转化率和产氢率,而且可以显著提高出口富氢气体中的氢含量。进一步研究表明,Cu40Zn30Zr2.Al5催化剂在OSRM反应中最... 详细信息

对甲醇氧化水蒸气重整制氢(OSRM)反应中CuZn(Zr,Ce)AlO催化剂的反应性能进行了研究,发现Zr和Ce的加入不但可以提高甲醇的转化率和产氢率,而且可以显著提高出口富氢气体中的氢含量。进一步研究表明,Cu40Zn30Zr2.Al5催化剂在OSRM反应中最佳反应条件为:2.0℃,n(O2./n(MeOH)=0 2.n(H2.)/n(MeOH)=1 3,W/F=1 36g·h/mol。

关键词： OSRM 甲醇重整 CuZn(Zr,Ce)AlO PEMFC

STUDY ON Ni-Cr SYSTEM SOLAR SELECTIVE THIN FILMS PREPARED BY MAGNETRON REACTIVE SPUTTERING PROCESS

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Acta Metallurgica Sinica(English Letters) 2002年第2期15卷 203-206页

作者： B. W. Wang and H. Shen guangzhou institute of {2. conversion, the chinese academy of sciences, guangzhou 510070, china Gua.igzhou institute of energy {2. The Chinese Acadenw of Sciences

Ni-Cr System solar selective thin solid films were prepared by d.c. magnetron reactive sputtering under the atmosphere of O2.and N2. Ni-Cr alloy was chosen as target material and copper sheets as substrate. Using SEAL Spectrophotometer and Talystep to analyze the relations between the selective characteristic and the structure, the formation and the thickness of the thin films. The aim is to obtain good solar selective thin films with high absorptance and low emittance, which is applied to flat plate solar heat collectors.

关键词： solar selective thin film magnetron reactive sputtering. absorptance emittance

Wave Loads and Protective Techniques of An On-Shore Wave Power Device

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china Ocean Engineering 1995年第4期10卷 455-464页

作者： You YageYuZhi Associated Professor, guangzhou institute of {2. conversion, chinese academy of sciences,guangzhou 510070. Professor, guangzhou institute of {2. conversion, chinese academy of sciences, guangzhou 510070

In this paper, the extreme wave loads on an on-shore wave power device are investigated. First, boundary element method is applied to solve the three dimensional potential problem based on the small amplitude wave assumption. Then the motion of the Oscillating Water Column (OWC) inside the device and its laods on the device are calculated in time domain. Several protective techniques often applied are simulated by changing the constraint of the upper end of the chamber of the device. Numerical results are used to judge the effectiveness of these techniques. The investigation shows that damping can not effectively restrain the motion of OWC when the period of incident wave is long, which may cause dangerous loads on the structure. The shut chamber can effectively restrain the motion of OWC, but alternatively cause high pressure in the chamber. A Contracting opening with a Taper (CT) can exhaust a great amount of kinetic energy of OWC, and significantly decrease the loads. It is a promising protective technique.

关键词： wave powr device protective technique wave load

EFFECT OF MAGNETIZATION OF WATER ON INDUCTION TIME AND GROWTH PERIOD OF NATURAL GAS HYDRATE

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化工学报 2003年第Z1期54卷 81-85页

作者： KUANG Li and FAN Shuanshi(guangzhou institute of {2. conversion, chinese academy of sciences, guangzhou 510070, Guangdong, china) guangzhou institute of {2. conversion Chinese Academy of Sciences Guangzhou 510070 Guangdong China

The effect of diluted solution's magnetization on induction time and growth period of natural gas hydrate (NGH) has been investigated in quiescent reaction system at pressure of 4. 5 MPa and temperature of 2.4 K with SDS as surfactant, by using volume fixed and pressure falling method. Experimental results show that magnetization will have effect on the induction time of NGH. After magnetization with magnetic field intensity of 0.33 T, the induction time of NGH has been reduced to 47 min (average) from 99 min (average) in which there is no magnetization. On the other hand, the induction time has been prolonged after magnetization of the diluted solution with magnetic field intensity of 0.05 T, 0. 11 T, 0.2. T, 0.44T. Especially with magnetic field intensity of 0.11 T, the induction time had even been prolonged to 431min (average). The effect of magnetization on the growth period of NGH has not been found at the experimental condition.

关键词： natural gas hydrate, magnetization, growth, induction time

Experimental Wave Power Plant at the Pearl River Estuary

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china Ocean Engineering 1991年第4期6卷 493-498页

作者： Liang Xianguang, Gao Xiangfan, Zheng Wenjie Yu Zhi, Jiang Niandong, Hou Xiangqin and You Yage 1. Associate Professor, guangzhou institute of {2. conversion, the chinese academy of sciences, guangzhou2. Senior Engineer, guangzhou institute of {2. conversion, the chinese academy of sciences, guangzhou3. Assistant Researcher, guangzhou institute of {2. conversion, the chinese academy of sciences, guangzhou4. Engineer, guangzhou institute of {2. conversion, the chinese academy of sciences, guangzhou

The first chinese experimental wave power plant, i. e., the shoremountcd experimental wave power plant at the Pearl River Estuary was successful in trial power generation on February 15, 1990. The plant is on the south shore of the Dawanshan Island in the Pearl River Estuary, facing the vast waving South china Sea. With a designed wave condition of H1/10= 1.5 m and T= 6.5 s, the planned installed capacity is 8 kW comprising the first unit of 3 kW brushless clawpole generator which delivers 110 V DC current and the second unit of 5 kW brushless single phase synchro AC generator which delivers 2.0 V AC current. At present, the first unit has been put into trial operation.

关键词： power plant estuary model test tide wave energy

Model Test and Design of the Wave energy System on "Central Fairway No. 1" Light Ship

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china Ocean Engineering 1992年第3期7卷 351-360页

作者： Gao Xiangfan , Liang Xianguang Jiang Niandong Feng Manzhi Wang Wei Senior Engineer, guangzhou institute of {2. conversion, chinese academy of sciences, 510070 guangzhouAssociate Professor, guangzhou institute of {2. conversion, chinese academy of sciences, 510070 guangzhou Engineer, guangzhou institute of {2. conversion, chinese academy of sciences, 510070 guangzhou

This paper presents the test of a ship model for the design of a backward-bent duct oscillating water column type wave energy conversion system, to supply electric power for a light ship. This system suggests a new wa... 详细信息

关键词： model test wave energy oscillating water column (OWC) light ship wave-activated generator

Analytical method of radiation by a wave energy device with dual rectangular floating bodies

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Acta Oceanologica Sinica 2010年第3期29卷 106-115页

作者： WANG Wensheng YOU Yage ZHANG Yunqiu WU Bijun YE Yin guangzhou institute of {2. conversion Chinese Academy of Sciences Guangzhou 510640 China Key Laboratory of Renewable energy and Gas Hydrate Chinese Academy Sciences Guangzhou 510640 China Graduate University Chinese Academy of Sciences Beijing 100049 China

The system with one floating rectangular body on the free surface and one submerged rectangular body has been applied to a wave energy conversion device in water of finite depth. The radiation problem by this device on a plane incident wave is solved by the use of an eigenfunction expansion method, and a new analytical expression for the radiation velocity potential is obtained. The wave excitation force is calculated via the known incident wave potential and the radiation potential with a theorem of Haskind employed. To verify the correctness of this method, an example is computed respectively through the bound element method and analytical method. Results show that two numerical methods. are in good agreement, which shows that the present method is applicable. In addition, the trends of hydrodynamic coefficients and wave force are analyzed under different conditions by use of the present analytical method.

关键词： wave energy device hydrodynamic coefficients wave force analytical method

PREPARATION AND CHARACTERIZATION OF POLY-CRYSTALLINE SILICON THIN FILM

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Acta Metallurgica Sinica(English Letters) 2003年第4期16卷 309-312页

作者： Y.F. Hu, H. Shen, Z.Y. Liu and L.S.WenCollege of Mechanical Engineering, South china University of Technology, guangzhou 510640, chinaguangzhou institute of energy conversion, the chinese academy of sciences, guangzhou 510070, china College of Mechanical Engineering South China University of Technology Guangzhou 510640 China

Poly-crystalline silicon thin film has big potential of reducing the cost of solar cells. In this paper the preparation of thin film is introduced, and then the morphology of poly-crystalline thin film, is discussed. On the film we developed poly-crystalline silicon thin film solar cells with efficiency up to 6.05% without anti-reflection coating.

关键词： poly-crystalline silicon thin film RTCVD (rapid thermal chem- ical vapor deposition) SSP (silicon sheet from powder)