In view of the features of the remaining oil after a period of production since secondary infilling adjustment of water flooding development oil field, that is, low quality, uneven planar distribution and high vertical dispersal, study on tertiary infilling adjustment optimized well spacing has been...

In the conditions of pressure maintenance when balanced injection and production rate, produced gas-oil ratio should remain stationary. Conversely, take Sabei oilfield as an example, along with the development entered high water cut period, the value of its produced gas-oil ratio increased significantly....

Charge-discharge experiments of lithium iron phosphate (LiFePO4) battery packs have been performed on an experimental platform, and electrochemical properties and damage mechanism of LiFePO4 batteries are also analyzed in extreme cases. Our results indicate that over-charge has little impact on utilizable...

A three-dimensional computational fluid dynamics model coupled with chemical kinetics mechanism was established and validated on an actual biogas fuelled engine. Arc and kernel tracking ignition model and coherent flame combustion model were implemented and applied to capture in-cylinder ignition and...

This study checks and analyses the design of a disk braking caliper bench testing machine, to testify its moving characteristics. The analysed objects include rotating axes and four weighting disks. The first procedure is to use the design software SolidWorks to build axis and weighting disks models....

In recent years, as a consequence of the rapidly increasing energy price and more and more stringent energy-saving and emission reduction policies, many effective measures have been taken by the majority of the coal-fired plants in China, including improving the power plant efficiency, reducing the unit...

Non-invasive fault monitoring and locating system due to the low installation and maintenance cost and non-invasive the use house has become an important development direction of load short-circuit fault identification and positioning. The paper constructs the overall architecture of non-invasive electricity...

Pigments of Forsythia flowers were facilely extracted. Ultraviolet-visible (UV-Vis) absorption spectra of nanocrystal TiO2 film sensitized by Forsythia dyes, and photoelectric property of natural dye-sensitized solar cells (DSSCs) confirmed that the strong capacity of Forsythia visible light absorption,...

Some specific bamboo pellets were combusted in a tube furnace individually in different constant air flow rates (3,4 and 5 L/min) and at various temperatures (800, 900, 1000, 1100 and 1200 ), in order to investigate the dynamic emission characteristics during various respective combustion processes....

Composite insulators are insulation parts which are used to withstand power load and all kinds of stress applied by wires in transmission lines,the stress offen cause fracture and brittle fracture of core rods in the operation.In this paper,composite insulators, running in the ice coating and wind load...

The inverters consisted of Power Electronic Devices are widely used in dredger, which makes Dredger Power System lots of Upper Harmonic. In order to achieve precise harmonic monitoring of cutter suction dredger power system, the paper proposes a power harmonic monitoring system based on Robust Kalman...

This study focused on the co-pyrolysis of sewage sludge and rice straw in order to improve syngas yield and energy recovery potential. The singular pyrolysis of sewage sludge and rice straw was firstly investigated under varying operating temperatures. Then the synergetic effect on yield of combustible...

With the development of economy, the demand of electric power is higher and higher. At the same time, the development of various types of power grid makes the investment of power grid projects more and more, but there is no complete and effective way to monitor the whole process of power grid project....

Series capacitor compensation can improve the operating parameters and transmission capacity of transmission line,it has been put into use in power system for many years.There is a common problem in Chinese distribution network that terminal voltage of the line is lower and instability which is caused...

World widely speaking, power industry plays an important player in the carbon emission and the carbon emission reduction field, and it is also the main part of the carbon trade market. Carbon constraint in electricity market will profoundly transform the original model of the power generation and electricity...

As battery electric vehicles are gaining more and more popularity in the Chinese market, the role of the energy management system in the drivetrain is escalating. In this paper, the driving control strategy of a battery electric bus is presented. Applying a fuzzy logic control (FLC) algorithm, the output...

The thermal protection test can be done by high temperature and supersonic gas jet, which plays an important role in promoting global thermal protection system development over the past few decades. The principle, characteristics and applications of the test method are presented. Furthermore, the development...

The construction of UHVDC (ultra high voltage direct current) transmission integrates the regional power grids into a whole grid in China, which increase the importance of power grid stability. Automatic power control helps operation personnel reduce the burden of work, but it may also take the power...

The power supply is used for operation, maintenance and management of the cable line in engineering, the cable circuit applying power supply device could carry on energy by induction, we have designed the AC-DC altering circuit, energy discharge circuit and protection circuit and so on, the reliability...

A integrative high voltage circuit breaker SF6 monitoring terminal device is designed, researched and developed the sensor circuit and radio frequency wireless transmission circuit, real-time online monitor the density and water content changes of SF6 gas and the trace leakage of the gas, then transmit...

As the continuous development of social economy, a large number of gas insulated switchgear (GIS) has been put into use for its advantages. In order to prevent disconnector faults during the process of substation switching operation, it’s important to measure the bus-transfer current to monitor the running...

Power industry as an important means of primary energy consumption occupies an important position In coal consumption and pollutant emissions, and causes a great impact on the environment. It is particularly important to define environmental costs while Environmental costs account for a heavy weight...

We have designed an integrated high voltage cable metal sheath circulation online monitoring terminal. The open-type current sensor, the circuit of data acquisition and the circuit transceiver of radiofrequency wireless has been researched and developed, real-time online monitor the changes of high voltage...

Switch operating mechanism box integrated wireless temperature monitoring terminal is designed and the sensor circuit, the heater current detection circuit, a wireless transceiver circuit, the control circuit are developed in the present invention.So the mechanism box temperature change can be monitored...

The grading early warning model of distribution network investment deviation can invest in distribution network construction project and provide scientific and economic management model. In this paper, factors that caused distribution network construction investment deviation has been identified effectively,...

With the deepening of the reform of the electric power system in China, the system of Cross-subsidization for large users’ direct power-purchase has achieved initial results. The domestic experimental work of large users direct Power-Purchase and the practice of foreign countries have demonstrated that...

Load forecasting plays an important part in power grid planning of grid company, this paper focus on the new load forecasting method under the effect of demand side resources, the potentials of all kinds of demand side resources are estimated by statistics method within a substation area to make the...

The first step to study environmental problems caused by power generation is focusing on electrical energy and carbon emission coordination scheduling and classifying the generating units by near zero emission, ordinary fossil fuels and carbon capture. And then make an in-depth analysis on electrical...