Proceedings of the International Conference on Advances in Energy, Environment and Chemical Engineering

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176 articles

Computer Simulation of Adaptive Control Algorithms for AC Wind Turbine with DFIG

Andrey A. Mazalov
Nowadays actual scientific problem of renewable energy is the problem of developing control systems, that ensure the generation of stable voltage in a changing environment. This paper presents a structure and methods of synthesis of control system development, which allow to decide the indicated problem....

The Application of Approximation Characteristics Non-Linear Resistor Implement the Required Current-Voltage Characteristics

Vitaly Viktorovich Pivnev, Sergey Nikolaevich Basan, Yuri Petrovich Voloshchenko
In this paper, we consider the problem of development of equivalent circuit of non-linear element with the current-voltage characteristic controlled either voltage or current, which can be modeled without any changes of scheme in accordance with design requirements. For solving the problem we use an...

Estimation of Failure Probability of Smartphone’s Battery Using Monte Carlo Simulation

Joonseong Lee
Battery is major component of smartphone, but only selected samples are periodically examined due to numerous numbers of batteries. The Consumers are generally required the use of high energy density batteries. However, most consumers are often dissatisfied with the battery life from even the most advanced...

Point Bar Numerical Simulation and Results Analysis in the Daqing Oilfield D Block

Peng Huang, Sharong Li, Qi Wang
point bar reservoir is the key development object in the late development of Daqing Oilfield, in this paper, the numerical simulation based on the construction of the point bar is carried out on the basis of the modeling of the point bar. Through dynamic data generating simulated well history and acquiring...

Volumic Power Variation with Temperature in a Pure Iron Billet Placed in an Induction Furnace

Merouane Boidjemaa, Sebbani Mohamed
We study a pure iron billet placed in an induction furnace. The magnetic reluctivity of pure iron varies strongly according to the temperature. The volumic power and total current in the billet increase linearly with temperature. But, before and near the Curie point, those parameters increase very strongly....

Structure Design and Optimization of the Repair Tower of 1000kV Overhead Transmission Lines

Xiaoguang Hu, Junke Han, Cheng Chen, Qinghua Li, Fei Wang
Tower falling down or wire breaking caused by natural disasters is a serious threat to the safe operation of power transmission lines. To improve repair efficiency and quality of overhead transmission lines in the case of disasters and incidents, this paper designed a rapidly assembled pole and tower...

Vector Orientation Positioning Method about Tower Spatial Model of Transmission Towers

Fei Wang, Changzhi Wang, Haifeng Liu, Yaduo Liu, Xiaoguang Hu
Because of a large number of tower elements in transmission tower, and direction of cross section is complex, it is difficult to quickly set up a space model at the same direction with the actual transmission line tower structure. In this paper, using the method of vector orientation. Define tower element...

Analysis of gas expander substituting for natural gas valve in a natural gas pressure regulating station

Xiaxi Li, Yaxuan Xiong, Linlin Xing, Bo Li, Hui Zhang, Di Qian, Rong Liu
a pressure regulator is an essential equipment during delivering natural gas to consumers with the help of pipe lines at present, but the potential pressure energy of high-pressure natural gas is not recovered. So a gas expander is employed to replace some regulators to recovery pressure energy during...

A New Type of Measurement System for Gasoline Engine Control Parameters

Tiezao Yang, Haibo Xue, Xinyang Wang, Changsheng Wang
It is important whether the theoretical control parameters of the gasoline engine, such as ignition advance angle, the fuel injection advance angle, the closing time, the injection pulse width and so on, are in accord with the actual control parameters, because they relate to the role on a new product...

Prediction of Residual Life of Isolating Materials in the Process of Thermal Power Equipment Deterioration

M.N. Dubyago, N.K. Poluyanovich
Methods of calculation of thermal processes of the isolating materials are considered, in problems of nondestructive diagnostics of the main and distributive power stations. Theoretical justification of calculation of thermal processes of the multilayered isolating structure was given. On the basis of...

Research on the Direct Strength Calculation of a 70000 DWT Bulk Carrier

Liang Feng, Chunbo Zhen, Ruikeng Feng, Sheng Dong
The direct strength calculation of a 70000 t bulk carrier was carried out based on the Guidelines for Direct Analysis of Bulk Carriers. Through building finite element model of 70000 DWT Bulk Carrier's hold section, the design Loads, boundary conditions and load cases were studied. According to the direct...

Analysis and Calculation of Miller Capacitor in Amplifier for 8 Bits Pipeline ADC

Ying Liu, Chi Xie, Yourun Zhang
This design pays much attention on analyzing and calculating Miller capacitor in operational amplifier to optimist OP (Operational Amplifier). The design for a 8-bit high speed, low power pipeline ADC is based on standard 0.18um CMOS technology, with 3.3 power supply. The results show that the dc gain...

Research on Low Voltage Ride through of the Grid-Connected PV System

Kaiting Li, Junjie Qian, Huaren Wu, Tianran Li, Jianfei Yang
With the increasing capacity of PV systems in the grid, the grid-connected PV systems will have negative impacts on the grid in the case of a disturbance or a fault. In this study, a strategy of ‘DC voltage control’ is adopted. During the period of low voltage ride through (LVRT), the duty cycle of the...

Simulation of Multi-Physical Fields in a Fault Arc

Xiaohui Li, Can Bao, Huaren Wu
A fault arc may destroy electrical equipment and threaten human life. Research on the multi-physical fields in a fault arc helps reduce this danger. This paper describes a theory for the multi-physical fields in the arc. These multi-physical fault arc fields were simulated using ANSYS Fluent. A case...

Research on Intelligent Human-Machine Interface of Relay Protection

Can Bao, Jianfei Yang, Huaren Wu
This paper mainly introduces that intelligent human-machine interaction is realized by using the TI company’s DSP chip as the control chip in the embedded system. The design which takes the OCM320240T350--1C touch screen of Jingpeng company as a specific development object uses the DSP chip to control...

Wide-Area Current Differential Protection Based on DSP

Lan Yang, Can Bao, Jinbo Lan, Jianfei Yang, Huaren Wu
The paper introduces the development status of wide-area protection (WAP) and the wide- area current differential protection (WACDP) algorithm. Digital signal processor (DSP) TMS320F28335 is used as the controller, the system model is built with MATLAB/Simulink, combined with semi physical simulation...

Dynamical Analysis of Transmission System of Wind Turbine Based on Flexible Supporting

Yufeng Yin, Shixiong Si, Gaige Jiang, Yali Na
With the development of large-scale wind turbine, the flexible deformation produced by the tower under random wind load has an important influence on wind turbine operation life. Considering flexible supporting of the tower for wind turbine and random wind load factors, the gearbox transmission system...

MOAR theory: a new system energy-saving method for Industrial Circulating Cooling Water System

Hehui Zhang, Yingjie Qu
Due to the high complexity and strong coupling of industrial circulating cooling water system, single and isolated technology can never fulfill the energy-saving need. Thus a system energy-saving theory named MOAR was proposed and explained with practice, including four principles: management of system...

The Importance of New Approaches Development and their Implementation in the Oil and Gas Industry in Russian Federation--the Current Situation Analysis

Iakov S. Korovin
In this paper I tried to dwell on the most crucial points, concerning the nowadays state of the Russian oil and industry in the conditions of sectoral sanctions, and the vital necessity of new approaches development and their instant application the industrial process of oil and gas production.

Potential Analysis of Energy Saving and Emission Reduction for Washing Industry

Guanhua Yue, Qi Wang, Hongyun Zou, Xueyao Zhang
With the development of Chinese washing and industry, the problem of large amount of energy consumption and exceed the discharge standard of sewage cannot be ignored. The development of washing industry is not mature. It leads to energy waste and environmental destruction. Under the macro environment...

Transient Voltage Stability Probabilistic Assessment Based on Second-order Approximation of Stability Boundary

Xiaoying Zhang, Bin Fu, Kun Wang
Probabilistic assessment of power system transient voltage stability is a useful complement to determinate evaluation. The linear boundary of dynamic security region of the controlling unstable equilibrium point was determined on the basis of dynamical system theory. Consequently, power system transient...

Analysis of Transient Voltage Stability for Wind Power Integrated System Based on DVR and Crowbar

Xiaoying Zhang, Youzhen Liang, Kun Wang
Aiming at the problems of transient voltage stability decreases, which caused by the doubly-fed wind power integrated system when grid short-circuit faults, a coordinated control strategy is proposed. This control strategy combines dynamic voltage restorer (DVR) based on the improved voltage drop detection...

Medium and Long Term Voltage Stability Based on Decoupled Algorithm

Xiaoying Zhang, Kun Wang, Zheng Jiang
Considering the characteristic of medium and long term voltage stability, the simulation algorithm of medium and long term voltage stability used quasi-steady-state assumption is studied. Based on the numerical integration methods currently used in the time-domain simulation analysis, a decoupled simulation...

A New Spray Mixing Model of Quasi-Dimensional Model for Diesel Engine Working Process

Kunpeng Qi, Wuqiang Long, Jisheng Hu
In order to satisfy the validity demand of quasi-dimensional combustion model for predicting diesel engine performance, a new phase-divided spray mixing model is proposed in this work. The software MATLAB/Simulink is utilized to build the quasi-dimensional combustion model of diesel engine working process,...

Performances of Heat Transfer and Fluid Flow in the Shell and Tube Heat Exchanger with Novel Sextant Fan Baffles

Mei Jin, Jian Fang, Li Zhan, Hongjiao Liu
For the high shell side pressure drop of the traditional segmental baffled heat exchanger, a novel sextant fan baffled heat exchanger was put forward in this paper. The 3-dimensional physical model of the novel sextant fan baffled heat exchanger was built, CFD software was used to obtain detailed shell...

The Energy Thoughts of Hu Jintao

Guolian Wang, Dongsheng Yi
Energy issues are what Hu Jintao highly values, that’s why he develops his energy thoughts to be more systematic and comprehensive. To study Hu’s energy thoughts leaves a practical significance on the progress of energy generation as well as consumption revolution.

Very Short-Term Wind Power Forecasting Based on SVM-Markov

Shunhui Jiang, Ruiming Fang, Li Wang, Changqing Peng
Very short-term forecasting of wind power is important to scheduling staff’s planning and wind turbine control. This paper has established a combined forecasting model based on Markov chain and support vector machine (SVM). Firstly, the SVM is used to model for wind power. Then, transition probability...

An Actual Measurement and Analysis on the Heat Insulation Effect of the Building Envelope in Taiyuan South Passenger Depot

Yanyan Huang, Jingjing Wang, Liangli Feng
TBuilding envelope has an insulating effect. This paper takes the building envelope in Taiyuan South Passenger Depot as an object of study, and this object is a double-skin facade. By collecting data on the surface temperature and air interlayer temperature of the inner and outer skin components based...

On the Development of China's Natural Gas Industry and the Market-Oriented Reform

Fengyun Wang, Xiaofan Liu
As a kind of environmental, economical and high efficient energy, natural gas has become the first choice for the development and utilization of many countries. In this paper, we analyze the production, consumption, import and export of China’s natural gas in recent decades, research the problems of...

Research on Maintenance Strategy Evaluation Method for Power Equipment through Experimental Verification

Guanglei Li, Chunlin Wang, Tao Wu, Mengchao Ma, Deqiang Guo
A maintenance schedule evaluation method for transmission and transformation equipment considering operation risk of power system is presented. The Sequential Monte Carlo simulation is used to solve probability problems. Considering the effects of equipment maintenance, a liner programming model is made...

Research on Control Strategy for power equipment based on Operation Risk of Power System

Guanglei Li, Xiangyang Jing, Mengchao Ma, Yuyao Qu, Yong Yan
A maintenance schedule evaluation method for transmission and transformation equipment considering operation risk of power system is presented. A dimensionality reduction method is used to deal with large amount of constraints. The maintenance schedules are quantitatively evaluated in the aspect of economic,...

Load Forecasting of Power System Based on Integrated Sample System and Cloud Computing

Huizhong Wang, Ke Liu, Hongyi Zhu
According to the characteristics of the short-term load forecasting, this paper established a integrated sample system. Through the analysis of various factors and load data to evaluate the effects of various factors on load forecasting, choosing the most appropriate forecast samples. PSO-LSSVM-Cloud...

Research on Optimal Product Attributes Selection of New Energy Vehicles

Chong Luo, Chunjie Chi
New energy vehicle, as the national strategic emerging industry, has received strong support from the government in recent years, but the industrialization development of new energy vehicle is not ideal. On the one hand, most of the research on new energy vehicle attributes is qualitative, which hindered...

Agent-based Simulation Study on Mode of Electric Vehicle Refueling Station

Yingqi Ni, Peipei Liu, Jiangjiang Zhao, Tieju Ma
With the deterioration of air pollution, global warming, people pay more attention to electric vehicles(EV). For the relationship between the diffusion of EVs and establishment of refueling stations, it is inter-constraining, and inter-stimulating. Based on agent-based model, we compare the effects of...

Study of Organic Rankine Cycles with Zeotropic Mixture Working Fluids Applied on the Waste Heat Recovery System

Shengya Hou, Wenping Zhang, Jiachen Ji, Ziwei Zeng
Taking good advantage of the diesel-exhaust with the Organic Rankine Cycle (ORC) System contributes to raising the thermal efficiency, saving fuel consumption and reducing the cost, since there is much energy carried by the diesel-exhaust. There come some problems on the match for the temperature of...

Supercritical CO2 Cycle System Optimization of Marine Diesel Engine Waste Heat Recovery

Shengya Hou, Wenping Zhang, Ziwei Zeng, Jiachen Ji
The exhaust gas of marine diesel engine loses a lot of energy when the exhaust discharged directly. Making good use of diesel engine exhaust gas to generate electricity is helpful to improve the thermal efficiency. Supercritical carbon dioxide cycle is not only with high cycle efficiency, but its devices...

An Optimal Reactive Power Planning Software for Urban Network

Qiang Sun, Xue Wang, Yingting Ni, Qiang Yin, Linyu Wang, Fangyuan Xu
Considering the business features and practical requirements of the optimal reactive power planning, this paper presents an optimal reactive power planning software system for the urban network. With multi-level architecture, the software is divided into several layers, which are managed as plug-ins....

Watered-out Characteristic and Residual Hydrocarbon Potential Analysis of Central Distric of Xing6 in Daqing Oilfield, China

Weiqiang Li, Taiju Yin, Aiwen Zhao, Lei Li, Hai Wu, Wen Zhou
Watered-cut zone logging technology is able to quantitatively obtain the remaining oil saturation and water cut of the underground reservoirs, to accurately judge the waterflooded grades of them, which is an important way and method to understand the distribution of residual hydrocarbon. The study shows...

Saudi Arabia Alternative Energy Research Learning from the Experience of China

Baslom Mohammed Majdy M, Ying Li
Economic growth cannot be separated from the energy which is an important material basis for economic development. Since the 20th century, with global population growth and economic expansion of the scale, Economic development has led to large amounts of energy consumption, increasingly acute contradictions...

ZrCoCe Getter Film Solution for Under Controlled Atmosphere MEMS Packaging

Yaohua Xu, Jiandong Cui, Hang Cui, Hao Zhou, Zhimin Yang, Jun Du
In order to specifically support the technology trend of increased miniaturization of Micro Electro Mechanical Systems (MEMS) devices, highly porous ZrCoCe non-evaporable getter (NEG) film has been produced by DC magnetron sputtering from a preformed ZrCoCe alloy target. The porous film is composed of...

The GMI-Hysteresis of Co67Fe4.5Cu1Si12.5B15 Amorphous Thin Strip

Jie Hao, Jinhui Huang, Ang Ding, Kunming Qian, Yansong Zhang, Mingli Li, Song Ji, Mi Yan
This paper presents the results of investigations recently done by our research group that improve the properties stability of GMI sensors by exploring the giant magneto-impedance (GMI) and the GMI-hysteresis of Co67Fe4.5Cu1Si12.5B15 amorphous thin strips, which was the most promising soft magnetic material...

Experimental Study of Compaction Effects and Proportion of Expansive Soil Improved by Ionic Soil Stabilizer

Xuesong Lu, Cunfeng Xia
Research and development of fast, economic and effective controlling method and theory of engineering has always been the focus of engineering construction for all the countries. In this research, a kind of Ionic Soil Stabilizer (ISS for short) is used to improve expansive soil. Based on expansive soil...

Effect of Detergents on Quality and Flavor of Fresh-Cut Mint

Chao Zhang, Yunfei Li, Yubin Wang, Yue Ma, Xiaoyan Zhao
The effect of detergents on the quality of fresh-cut mint was evaluated. The acidic electrolyzed water and sodium hypochlorite extended the shelf life of the fresh-cut mint to 12 d and maintained its flavor. The Sodium hypochlorite treatments avoid the loss of the greenness of the mint. Hence, the sodium...

Flame Retardant and Mechanical Properties of Expanded Polystyrene Foams Containing Aluminum Phosphinate and Expandable Graphite

Lifei Hu, Zhengzhou Wang
Halogen-free flame retarded expanded polystyrene (EPS) foams were prepared in this work. The effect of two kinds of aluminum phosphinates, i.e. diethyl aluminum phosphinate (DEAP) and diisobutyl aluminum phosphinate (DIAP), and their combination with expandable graphite (EG) on mechanical, flame retardant...

Study of NASICON Structured Lithium Ion Conductor Li1+xAlxZr2-x(PO4)3

Xiaojuan Lu, Xue Feng, Wenwei Lin, Haitao Liu, Yunjie Zeng
NASICON structured Li1+xAlxZr2-x(PO4)3 have been studied to replace LAGP and LATP in this paper. The effects of both annealing temperature and Al doping were investigated. Both the annealing temperature and Al doping exhibited an optimal value, which is 1100oC and 0.3, respectively. The doping of Al...

Microwave Kinetic Study of Functional Cellulose Grafted in Homogeneous Media

Gang Chang, Jihua Li, Xiaoyi Wei, Fei Wang, Tiaokun Fu
The cellulose grafted copolymer was synthesized with 2-(Dimethylamino)ethylmethacrylate(DMAEMA) onto the sugarcane bagasse under microwave irradiation in homogeneous media. A homogeneous solution was obtained through dissolving cellulose in 1-butyl-3-methylinidazolium chloride ionic liquid which the...

Properties Study of Lightweight Partition Board based on Extrusion Molding Process

Xiaoqiao Zhang, Xiao Chen, Mingkai Zhou
Lightweight partition board is a newly developed thermal insulation wall material which is mainly composed of lightweight aggregate like ceramisite, glass beads and so on. In this paper ,we prepare it through extrusion molding process which is highly mechanized to save resources and improve productivity....

Experimental Research on Preparation of Superfine Sand Concrete without Coarse Aggregate

Yubao Yang, Yongjing Mao, Yuepeng Pan, Jie Chen, Jie Leng
Using superfine sand as the main raw material and the superfine sand concrete without coarse aggregate was made by method of semi-dry moulding in this paper. The compressive, splitting tensile and immersion strength of the concrete material was studied to determine the influence of mix proportion of...

Occupational Exposure to Solid Aerosols during MIG Welding of Structural Carbon Steel

Szabova Zuzana, Cekan Pavol, Kuracina Richard, Balog Karol
Safety and health of workers associated with the presence of solid aerosols in welding must be continuously monitored. The solid aerosols in the work environment and other factors are currently the serious problem of most workplaces not only in the European Union. Due to this fact is every profession...

Corrosion Failure of Stainless Steel Tube during Storage

Shanjun Ma, Shaohua Li, Lei Liang, Yang Zhao
Corrosion failure of the stainless steel tube was analyzed through the methods of field investigation, chemical composition and metallographic analysis, tensile test, surface morphology and micro elements analysis. The quality accords with the standard of ASTM A688, and the stainless steel tube corrosion...