期刊：
Proceedings of the 26th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, ECOS 2013,2013年
通讯作者：
Chen, G.J.(cgjsccgj@126.com)
作者机构：
[Chen, Guo-jie; Liu, Xiang-wei; Chen, You-ming; Tan, Ying-ying] College of Civil Engineering, Hunan University, Changsha, 410012, China;[Guo, Xing-guo] School of Civil Engineering and Architecture, Nanchang University, Nanchang 330031, China;[Chen, Guo-jie] College of Mechanical Engineering, University of South China, Hengyang 421001, China
摘要：
There is an increasing interest to decrease the building energy consumption all over the world. One way is decreasing building energy consumption by optimizing hydrothermal performance of building envelope. Most building materials are porous, composed of solid matrix and pores. Moisture transfer and accumulation within porous building material has an important impact on the hydrothermal performance of building envelope, energy consumption and indoor environment, however often not taken into consideration adequately. This paper focused on the effect of moisture transfer on building energy performance, by predicting moisture transfer in building envelope and analyzing the impact of moisture transfer on thermal conductivity of porous building envelope material. At first, a transient dynamic model for the coupled heat and moisture transfer in porous media was developed with the driving potentials of temperature and air humidity ratio. This model takes into consideration the phase change of water and can deal multi-layers building envelope. And then two typical walls (brick wall and aerated concrete wall) were calculated with this model, and thermal conductivity of three main materials (brick, aerated concrete and cement mortar) was analyzed. The results show that: 1) both the two frequently-used walls are affect by the high temperature and humidity moisture under the hot and humid climate, and both keep high value of moisture content ;2) in the three main materials moisture transfer can affect its thermal conductivity in a great extent.
摘要：
We report the fabrication of the 304 stainless steel by the laser rapid prototyping harmonized with high-frequency micro-forging and demonstrate that both microstructure and properties of the prepared samples can be enhanced significantly. Structurally, we find that the large regular dendritic microstructure can be broken into pieces and that the internal defects are to some extent eliminated. Moreover, grains are refined remarkably. As a consequence of such structural modification, mechanical properties are found to be enhanced considerably by demonstrating a much broader fluctuation in tensile strength, a marked increase in tensile and yielding strength, and a drastic enhancement in surface hardness by 76% after the micro-forging. Further calculations reveal that the defect region is shrunken substantially after micro-forging. Detailed analysis of fractures in the tensile samples provides convincing evidence that plastic properties can be improved as well by the micro-forging.
作者机构：
[Zhu, Hongmei] Univ South China, Sch Mech Engn, Hengyang 421001, Peoples R China.;[Kuang, Tongchun; Lei, Shumei] South China Univ Technol, Sch Mat Sci & Engn, Guangzhou, Guangdong, Peoples R China.
通讯机构：
[Zhu, Hongmei] U;Univ South China, Sch Mech Engn, Hengyang 421001, Peoples R China.
会议名称：
3rd International Conference on Advanced Engineering Materials and Technology (AEMT 2013)
会议时间：
MAY 11-12, 2013
会议地点：
Zhangjiajie, PEOPLES R CHINA
会议主办单位：
[Zhu, Hongmei] Univ South China, Sch Mech Engn, Hengyang 421001, Peoples R China.^[Lei, Shumei;Kuang, Tongchun] South China Univ Technol, Sch Mat Sci & Engn, Guangzhou, Guangdong, Peoples R China.
摘要：
In this paper, carbon nanocoatings were prepared on YG8 (WC-8 wt.%Co) hardmetal substrates by using the oxygen-acetylene flame method. It was shown that the morphology and quality of carbon nanocoatings were greatly affected by the position at which the hardmetal was placed in the flame and the surface pretreatment of the hardmetal. Small nodular particles aggregated by short needles were synthesized on the acid-etched substrate, while cauliflower-like diamond particles were deposited on the mechanically-polished and acid-etched substrate. The cross-section observation indicated that there was a good mechanical interlocking between the deposited diamond coating and the substrate.
通讯机构：
[Zou, Jia Zhu] U;Univ South China, Coll Mech Engn, Hengyang 421001, Hunan, Peoples R China.
会议名称：
International Conference on Advances in Energy and Environmental Science (ICAEES)
会议时间：
JUL 30-31, 2013
会议地点：
Guangzhou, PEOPLES R CHINA
会议主办单位：
[Zou, Jia Zhu;Yuan, Feng Wei;Hu, Liang Bin] Univ South China, Coll Mech Engn, Hengyang 421001, Hunan, Peoples R China.
会议论文集名称：
Advanced Materials Research
关键词：
Biomass boiler;Boiler transformation;CFB;Regenerative energy
摘要：
China is a big agricultural country, which had many kinds of biomass resources. Biomass energy belongs to clean energy, it was available to achieve zero co2 emissions and substitute fossil fuels such as coal, oil and gas to be an important energy. Through the transformation of 35t/h coal-fired CFB boiler, which based on material and circulated carrier, burning biological energy, changed boiler from consuming one-time energy to the regenerative energy, which saved coal and prevented waste from directly emitting into the atmosphere to pollute the environment. It would save energy and increase the local farmers additional income by sell stem, which followed the trend of the national development strategy. The test data show that: this transformation of boiler is very successful, indicate that we can transform some original polluted boiler which consume coal to some degree and provide some experimental methods for these transformations.
作者机构：
[Liu, Yong Xia; Zhang, De; Zou, Shu Liang; He, Zhi Feng] Univ South China, Sch Mech Engn, Hengyang, Peoples R China.
通讯机构：
[Liu, Yong Xia] U;Univ South China, Sch Mech Engn, Hengyang, Peoples R China.
会议名称：
International Conference on Advances in Energy and Environmental Science
会议时间：
2013-07-30
会议地点：
Guangzhou(CN)
会议主办单位：
[Liu, Yong Xia;Zou, Shu Liang;He, Zhi Feng;Zhang, De] Univ South China, Sch Mech Engn, Hengyang, Peoples R China.
会议论文集名称：
Environmental protection and resources exploitation: Selected, peer reviewed papers from the 2013 International Conference on Advances in Energy and Environmental Science (ICAEES 2013), July 30-31, 2013, Guangzhou, China
关键词：
Manipulator;Modeling and simulation;Nuclear radiation;Structural design
摘要：
On the basis of the design and calculation, motion analysis and structural analysis were carried out on hydraulic manipulator hand structure working in the radiation environment by using modeling and simulation technology. Concluded that the simulation results can be intuitive to inspect the kinematic characteristics of the manipulator hand structure, and provide the basis for the design of the control system.
摘要：
This paper focus on designing a fuzzy PID controller design about the vapor pressure of the EPE foaming machine parameters, and raise a self-tuning method of PID parameters, and use the fuzzy control toolbox of MATLAB to simulate its control system, which are compared with the simulation of conventional PID controller, the results show the design of fuzzy PID controller have high control precision, small overshoot, good dynamic performance characteristics.
作者机构：
School of Mechanical Engineering, University of South china, HuNan HengYang 421001;South china university of technology GuangDong Guangzhou 510641
会议名称：
The Eighth China National Conference on Functional Materials and Applications(第八届中国功能材料及其应用学术会议)
会议时间：
2013-08-23
会议地点：
哈尔滨
会议论文集名称：
The Eighth China National Conference on Functional Materials and Applications(第八届中国功能材料及其应用学术会议)论文集
关键词：
Diamond;Carbon nanotubes;flame;cemented carbide;Deposit time
摘要：
At present, most of the researches on carbide surface modification are focused on the method of chemical vapor deposition and physical vapor deposition in order to enhance its wear resistance and surface hardness.In this paper, C2H2 and O2 of flame are used to deposit carbon coatings on YG 16 cemented carbide surface.The influence of deposition time have been investigated with the method of XRD, SEM.Carbon coatings structure, quality and Cross sectional microstructures of carbon coating was analyzed.The experimental result show that after different deposition time, the typical spherical diamond\nanometer carbon tube and diamond-graphite-no crystal carbon coatings have been formed on the surface of cemented carbide.
作者机构：
[Feng Wang; Longjian Li] Key Laboratory of Low-grade Energy Utilization Technologies and Systems(Chongqing University),Ministry of Education,Chongqing 400030,P.R. China;[Jing Zhou; Penglai Li; Guofu Zhang] College of Power Engineering,Chongqing University,Chongqing,400030,P.R. China;[Bo Qi] Mechanical Engineering Department,University of South China,Hengyang,Hunan 421001,P.R. China
