作者机构：
[Peng, Bo; Zhang, Hong; Wu, Qing Ding; Dong, Jun Hui] Institute of Processing Technologies of Materials, Central South University of Forestry and Technology, Changsha, China
摘要：
For the purpose of preparing stern bearings adapted to water-lubricating environment to replace natural lignumvitae, preparing bearings with solid lubricant of electromechanical equipment applied in some industries such as textile, food and healthcare to replace sintered bronze, and preparing advanced automotive upholstery, appliance and artware to replace natural rosewood and ox bone, three published patents including “a preparation method of artificial lignumvitae” were used to prepare artificial lignumvitae with a better wear resistance than natural lignumvitae. As the materials for sliding bearing, the main performance of artificial lignumvitae meets the requirement for sintered bronze FZ2365. It explores a new way to develop functional biomass materials with wood waste in urban and rural area while ensure its high quality and cleanness.
作者机构：
[吴庆定; 张红; 彭博] Hunan Provincial Key Laboratory of Engineering Rheology, Institute of Processing Technologies of Materials, Central South University of Forestry & Technology, Changsha, 410004, China
通讯机构：
[Wu, Q.-D.] H;Hunan Provincial Key Laboratory of Engineering Rheology, Institute of Processing Technologies of Materials, Central South University of Forestry & Technology, Changsha, China
期刊：
International Conference on Wavelet Analysis and Pattern Recognition,2012年:296-301 ISSN：2158-5695
通讯作者：
Liu, Y.-Y.(liuyy@csu.edu.cn)
作者机构：
[Jiang, Shu-Xia] School of Traffic and Logistics, Central South University of Forestry and Technology, Changsha, China;[Zhang, Hong] School of Mechanical and Electrical Engineering, Central South University of Forestry and Technology, Changsha, China;[Liu, Yuan-Yuan] School of Mathematics and Statistics, Central South University, Changsha 410075, China;[Jiang, Shu-Xia] School of Traffic and Transportation Engineering, Central South University, Changsha, China
会议名称：
Wavelet Analysis and Pattern Recognition (ICWAPR), 2012 International Conference on
摘要：
Two-dimensional numerical simulation of heat storage characteristics in a horizontal rectangular enclosure heated from below by natural convection has been investigated with the microencapsulated phase change material (PCM) slurry. Effects of PCM on heat storage and heat transfer are discussed, in which PCM slurry exhibits the pseudoplastic non-Newtonian fluid behavior and a peak value in the specific heat capacity with latent heat in phase temperature range. And their characteristics between the slurries with and without phase change of PCM are compared in the phase change temperature range. And vertical temperature distributions at the middle position are given. This paper shows streamlines and isotherms in the enclosure for phase change process.
会议名称：
International Conference on Green Power, Materials and Manufacturing Technology and Applications (GPMMTA 2011)
会议时间：
JUL 15-18, 2011
会议地点：
Chongqing, PEOPLES R CHINA
会议主办单位：
[Zhang, Yanlai;Zhang, Hong;Li, Lijun;Zhang, Minglong] Cent South Univ Forestry & Technol, Springer Coll Mech & Elect Engn, Changsha 410004 17, Hunan, Peoples R China.^[Rao, Zhonghao;Wang, Shuangfeng] South China Univ Technol, Minst Educ, Key Lab Enhanced Heat Transfer & energy Conservat, Guangzhou 510640, Guangdong, Peoples R China.
会议论文集名称：
Applied Mechanics and Materials
关键词：
Heat transfer coefficient;Microcapsule slurry;Nusselt number;Phase change material;Rayleigh number;Solid phase state
摘要：
A numerical investigation on natural convection heat transfer in a 2-dimensional enclosure heated from below has been conducted with mieroencapsulated phase change material (PCM) slurries. The microencapsulated PCM slurry exhibits pseudoplastic non-Newtonian fluid behavior and has a peak value in the specific heat capacity. The viscosity of the slurry is assumed to follow the Ostwald-de Wade power law fluid model with the power-law index n and the consistency coefficient K. Both dynamic and heat transfer characteristics arc discussed on Rayleigh-Benard natural convection. Characteristics on natural convection heat transfer have been numerically investigated for different value of the width-height aspect ratio of the enclosure. According to the comparison of the two kinds of fluid with PCM and without PCM, the start of natural convection is earlier for the fluid with PCM.
关键词：
Heat transfer;Phase change material;Thermal energy storage;Wood drying
摘要：
The article mainly discusses the application situation on the solar energy wood drying in China, and summarizes its advantages and problems in the real application. Because solar energy is low in thermal density, intermittent, and it is affected by weather, these have very big limitation to use solar energy in the actual production process. Based on these, it is introduced that the advantages of thermal energy storage technology in wood drying process of solar energy, the main application modes and the actual application status. It summarizes the major thermal energy storage materials and their basic characteristics, discusses the application prospect and the importance on the latent heat storage technology in wood drying.
关键词：
Numerical simulation;The linear air-conditioner compressor;The refrigerating performance;Varied operating condition
摘要：
This paper mainly introduces a novel linear air conditioner compressor which is driven by the linear oscillatory motor with two divided moving body, of which the Cylinder-piston assembly presents symmetrical distribution along the axial direction. The compressor dynamics equations were built and solved numerically with the fourth order Runge-Kutta method. in the meantime, this paper emphatically analyzes the influence of those factors, such as the intake pressure, the exhaust pressure, the suction gas superheat, the cooling degree, on the compressor performance at varied operating conditions. These works shows that improving the suction gas pressure and reducing the exhuast pressure can help to increase the refrigeration capacity and energy efficiency ratio of the air conditioner compressor. Those analysis results provide theory foundation for design,development, and engineering application of this linear air-conditioner compressor.
期刊：
Applied Mechanics and Materials,2011年71-78:1187-1190 ISSN：1660-9336
通讯作者：
Zhang, Yanlai
作者机构：
[Zhang, Yanlai; Zhang, Minglong; Zhang, Hong; Li, Lijun] Cent South Univ Forestry & Technol, Coll Mech & Elect Engn, Changsha 410004, Hunan, Peoples R China.;[Zhang, Yanlai; Wang, Shuangfeng; Rao, Zhonghao] South China Univ Technol, Minist Educ, Sch Chem & Chem Engn, Key Lab Enhanced Heat Transfer & Energy Conservat, Guangzhou 510640, Peoples R China.
通讯机构：
[Zhang, Yanlai] C;Cent South Univ Forestry & Technol, Coll Mech & Elect Engn, Changsha 410004, Hunan, Peoples R China.
会议名称：
International Conference on Green Building, Materials and Civil Engineering (GBMCE 2011)
会议时间：
AUG 22-23, 2011
会议地点：
Shangri La, PEOPLES R CHINA
会议主办单位：
[Zhang, Yanlai;Zhang, Hong;Li, Lijun;Zhang, Minglong] Cent South Univ Forestry & Technol, Coll Mech & Elect Engn, Changsha 410004, Hunan, Peoples R China.^[Zhang, Yanlai;Rao, Zhonghao;Wang, Shuangfeng] South China Univ Technol, Minist Educ, Sch Chem & Chem Engn, Key Lab Enhanced Heat Transfer & Energy Conservat, Guangzhou 510640, Peoples R China.
会议论文集名称：
Applied Mechanics and Materials
关键词：
Heat transfer coefficient;Microcapsule slurry;Nusselt number;Phase change material;Rayleigh number;Solid phase state
摘要：
This experiment is performed to investigate heat transfer characteristics with the PCM microcapsule slurry in a solid phase state at a horizontal rectangular enclosure heating from below and cooling from top. Some important parameters are taken into account such as the mass concentration of the PCM, the temperature difference between heating plate and cooling plate, Nusselt number Nu, Rayleigh number Ra and the aspect ratio (width/height) of the horizontal rectangular enclosure. Experiment is done under the thermal steady condition in the PCM microcapsule slurry. Heat transfer coefficient is measured under various temperature differences in PCM mass concentrations of 10% and 20%. And relationship with Nusselt number Nu and Rayleigh number Ra is summarized to various heights H or the aspect ratio (width/height) Ar of enclosure.
