News Article | November 23, 2016
BANGKOK, Thailand, Nov. 23, 2016 /PRNewswire/ -- China Machinery Engineering Corporation (CMEC), a Hong Kong public-listed engineering power house hosted its "CMEC, Your Partner for Success" reception and conference event in the chic hotel W Bangkok this morning. Mr. Zhang Jianguo, vice president of CMEC delivered a keynote speech highlighting CMEC's outstanding achievements over its 38-year's history and its strategic blueprint in Thailand and its neighboring markets. He stressed CMEC will put more efforts in Thai market, especially in new energies such as solar, waste and biomass power-generating projects. CMEC's Regional Business Center for ASEAN has already been in its internal decision-making process, and hopefully opens for business in next year. CMEC's executives delivered 6 business introducing presentations at the two-and-half-hour event, of which included subsidiary CERIECO's projects with EGAT, subsidiary CMECGM's medium and small size manufacturing lines of pharmaceuticals, beverages, ice cream and plastic products, and CMEC's e-commerce business, among others. VIP guests such as Mr. Alonhgkorn Pollabutr, vice chairman of National Reform Council of Thailand, Dr. Pun-Arj Chairatana, director of National Innovation Agency of Thailand, Mr. Utis Chanchenchop, president of Illumination Engineering Association of Thailand and Mr. Cai Yipi, president of Thai-Chinese Economy and Trade Interchange Center, and other around 200 guests attended the event. Founded in 1978, CMEC (www.cmec.com) was one of the biggest international trading groups in China before it went public at Hong kong Stock Exchanges in 2012. Its core businesses include engineering contracting, investment and financing, design and consulting and international trading. It's a regular top contractor at ENR list.
Feng L.,North China Electrical Power University |
Chen H.,North China Electrical Power University |
An L.,North China Electrical Power University |
Xu M.,North China Electrical Power University |
And 3 more authors.
Taiyangneng Xuebao/Acta Energiae Solaris Sinica | Year: 2015
The optimization and integration scheme of solar tower power with coal- fired hybrid power plant was put forward, and the techno-economic model of hybrid power system was established. A case study of a 330 MW unit with three integration schemes was evaluated by techno-economic analysis. The results showed that solar tower power with coal-fired hybrid power plant in various applications is feasible; the thermal cycle efficiency of hybrid power system is higher than the only solar tower power station and lower than coal-fired power system. Through judging from single case, cases comparison and financial profitability analysis, the best choice is leading the steam produced in the solar tower to the main steam of coal-fired unit. Cycle thermal efficiency of power generation systems is 42.8% and net cost of solar power is 2.68 yuan RMB/kWh. © 2015, Science Press. All right reserved.
Guo F.,Beijing University of Chemical Technology |
Zhang H.-F.,China Machinery Engineering Corporation |
Li Q.-S.,Beijing University of Chemical Technology |
Cao Z.-G.,Tangshan Sanyou Chlor Alkali Co. |
Zhang G.-L.,Tangshan Sanyou Chlor Alkali Co.
Xiandai Huagong/Modern Chemical Industry | Year: 2015
The mechanism and development of stripping technology is briefly introduced. To solve the existing problems and the deficiency of traditional stripper, a new kind of flow-guided sieve tray with baffle plate is presented in this study. Using this flow-guided sieve tray, the content of residual VCM can be decreased from 50ppm to 1ppm and the consumption of steam is reduced from 0.4 t to 0.12 t. Moreover, the tower doesn't need cleaning within 3 years. ©, 2015, China National Chemical Information Center. All right reserved.
Zhang Y.,Beijing Union University |
Liu W.-F.,China Machinery Engineering Corporation |
Li Q.,Beijing Union University
Beijing Gongye Daxue Xuebao/Journal of Beijing University of Technology | Year: 2013
In order for quick and accurate EPC project valuation, a preliminary calculation model was set up based on the estimate budgetary method and traditional mature valuation methods. The calculation accuracy was further improved by the project break-downs and computer corrective index so as to set up the valuation methods for the similar EPC subdivisional works. As per the data statistics collected from the projects applied this method, 97.5% of subdivisional works was under control and the problems like "lump sum" and "fixed total price" can be settled effectively.
Zhao F.,Lanzhou University of Technology |
Zhao F.,Northwestern Polytechnical University |
Shao Z.,Lanzhou University of Technology |
Wang R.,China Machinery Engineering Corporation |
And 2 more authors.
Journal of Computational Information Systems | Year: 2015
This paper presents a novel hybrid algorithm termed as a hybrid EDA with chaotic DE algorithm (EDcDE), which is designed to effectively combine estimation of distribution algorithm (EDA) and differential evolution algorithm (DE) without losing their unique features. Due to its effective nature of harmonizing the global search of EDA with the local search of DE, and chaotic policy which is introduced to DE to strengthen the search ability of DE, EDcDE can discover the optimum solution in a rapid and reliable way. Meanwhile the global convergence of the proposed algorithm was analyzed with the theory of stochastic processes. The proposed algorithm was used to solve global optimization problems. The experimental results on benchmark functions have demonstrated the effectiveness of the proposed approach. 1553-9105/Copyright © 2015 Binary Information Press
Chen L.,University of Science and Technology Beijing |
Li C.J.,China Machinery Engineering Corporation
Proceedings of the International Symposium on the Physical and Failure Analysis of Integrated Circuits, IPFA | Year: 2013
The thermal stress in dual-damascene Cu interconnects with different via geometry and dielectric materials combination was simulated using the finite element method. The simulation results are presented to show that a small via linked to a wide and large Cu block increases the risk of electro-migration and stress migration failure. Vias in cylinders will drastically reduce thermal stress of the entire structure which is prone to undertake shear strain and increase, to some extent, the thermal stress level on the top plane of lower Cu block simultaneously. The thermal stress distribution is sensitive to the structure, especially when low-A materials are involved. Partial combination of dielectric materials such as SiO2 and SiLK is not expected to change the thermal stress distributions obviously. © 2013 IEEE.
Wang J.,Huazhong University of Science and Technology |
Shi L.,China Machinery Engineering Corporation |
Gao Y.,Huazhong University of Science and Technology |
Yang H.,Huazhong University of Science and Technology |
Wang X.,Huazhong University of Science and Technology
Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering | Year: 2013
Hydro-char can be widely used in fuel, soil improvement, pollutant removal, functional nano-materials preparation, CO2 fixation and other areas. Moreover, the hydrothermal carbonization process is accomplished under mild and simple conditions and is adaptable for wide feedstocks. As a result, conversion of biomass into hydro-char is very promising. In order to promote the progress of the hydrothermal synthesis of carbon microspheres and hydrothermal utilization of biomass, in this study, glucose was carbonized in a subcritical hydrothermal environment, and the process and results were studied. All the experiments were carried out in a 500 mL autoclave of 316 L stainless steel that was heated by an electrical heater. For each test, a certain amount of glucose and 100 g of deionized water were fed to the autoclave and sealed. Then, air was purged out of the reactor with argon and the initiative pressure was set at 0 MPa. After each reaction in a certain temperature and residence time, the gas was discharged and the reactor was rapidly cooled to below 90°C with internal cooling by a U-loop and external fan. When the temperature dropped to room temperature, the hydro-char was collected by filtration, washed with deionized water and acetone several times, and dried in 105°C for 12 h at last. The obtained hydro-chars were examined by means of Elemental Analysis, X-ray Diffraction, Scanning Electron Microscope, Fourier Transform Infrared Spectroscopy, and X-ray Photoelectron Spectroscopy. The results showed that there were a lot of carbon spheres in the hydro-char which were distributed between 0.6-7 μm. Moreover, the physicochemical properties of hydro-char were influenced by the temperature, glucose addition and residence time. Within the HTC condition of temperature (170-280°C), residence time (0.5-12 h) and addition of glucose (1-12 g/100mL), suitable temperature (220°C) and residence time (4 h), and small addition of glucose (<6 g/100mL) favored obtaining carbon microspheres with smooth surface and good sphericity. Higher temperature (<280°C), larger addition of glucose and longer residence time were conductive to improving the yield of hydro-char and carbon fixation in it. Hydro-char with excellent morphology was obtained under conditions of 220°C and 6 g/100ml for 4 h from glucose. The hydro-char contained a large number of microspheres which had a smooth surface, good spherictiy and distributed in the range of 0.7~1.9 μm; At the same time, the hydro-char was an amorphous carbon with a tiny BET surface area and only few mesopores and macropores; The hydro-char contained a lot of oxygen-containing functional groups which were mainly -OH and -C=O; The degree of carbonization on the surface was higher than that in the core. The formation of hydro-char was done like this:, the feedstock was firstly hydrolyzed into many intermediate products which would be transformed into microsphere cores through dehydration and polymerization, the microsphere cores then formed into dispersed colloidal particles by the adsorption of surrounding molecules and eventually evolved into carbon microspheres or lump coke. The research results laid out a data reference for the process control of hydrothermal microspheres preparation and hydrothermal utilization of biomass.