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Online since: June 2013
Authors: Shi Ping Xie, Peng Jie Chu
Hanging transportation has been listed in the "ten key projects" to promote energy saving and emission reduction.
According to data announced by the Department of Transportation, the annual one-way passing capability through the three gorges dam is 50 million tons and two-way 100 million tons, each lock operates with daily average of 22 times.
According to the statistics data of lock passing by the maritime administration department of the three gorges, in the only half a year of 2003, the passing volume through the three gorges is 13.7701 million tons, in 2004 34.3062 million tons, in 2009 increased to 60.8873 million tons and in 2010 the lock is operated 9407 times, 58302 ships and 507500 passengers passing through, freight volume of 87.94 million tons including 78.8 million tons of transported cargo and 9.14 million tons of Over-Dam transshipment goods, increasing 18.44% comparatively year-on-year and making a new record.
A statistical data of heavy cargo transportation over years shows that heavy goods transport restricted by bridges or tunnels on railway and highway usually take waterway Ro-Ro transportation as a preference.
A market research data of transport vehicles along the Reservoir shows: commercial bulk alcohol is carried out of Sichuan, Guizhou, Chongqing, and other provinces and cities as much as 30-400000 tons by nearly 20000 transport vehicles.
Online since: October 2003
Authors: Peter Lundmark, Janis Varna
A limited number of experimental data are presented and used for further verification.
Reduction in elastic properties due the cracks in layers of [0,90]s laminate.
FEM model Ex/Ex0 0.9179 0.9162 Ey/Ey0 0.9106 0.9072 vxy/vxy0 0.8075 0.8195 vyx/vyx0 0.8010 0.8200 ααααx/ααααx0 0.9573 0.9576 ααααy/ααααy0 0.9539 0.9534 Comparison with experimental data The predictive model was applied to experimental Young's modulus and Poisson's ratio data for cross-ply laminates.
Experimental data of reduction of both stiffness and Poisson's ratio in GF/EP [02,902]s cross-ply laminates compared with model predictions.
Transverse cracking and stiffness reduction in composite laminates.
Online since: August 2014
Authors: Yan Xue, Jing Chen, Gui Shu Yin
And energy saving adapts to the international form of low carbon and emission reduction.
Energy saving plays an important role in emission reduction[2].
And the excess steam is removed in time when the flow of the demineralized water suddenly becomes low. 4 Data Sources and Transformation Results The data of this study is got mainly from production and operation data of field engineering. 4.1 Determination of Energy Efficiency. 1) After the implementation of the project, energy saving benefit (△C) refers to the sum of all kinds of energy saving multiplied by energy unit price.
Energy saving data is calculated by equation 1.
Transformation of Energy Saving and Emission Reduction of Coal Chemical Enterprises Based on Circular Economy[D].
Online since: April 2013
Authors: Shao Yi Wu, Min Quan Kuang, Bo Tao Song, Xian Fen Hu
H denotes the reduction factor for the Cu2+ 3d-3s (and -4s) orbital admixture due to tetragonal distortion [15].
The structural data of this site are illustrated as the two bond lengths R|| ≈ 2.721 Å parallel to the C4 (horizontal c) axis and four bond lengths R^ ≈ 1.931 Å perpendicular to the C4 axis (vertical a and b axes) [19].
Substituting these data into Eqs. (1) and (5), the g factors, hyperfine structure constants and Knight shifts are calculated and given in Table 1.
Table 1 The g factors, hyperfine structure constants (in 10–4 cm–1) and Knight shifts (in %) for Tl2Ba2CuO6+y g// g^ A// A^ K// K^ Calc. 2.23 2.04 –121.07 –22.46 1.29 0.23 Expt. [11] - - –120.31 –22.56 1.27 0.25(1) Discussion It can be found from Table 1 that the theoretical Knight shifts and hyperfine structure constants obtained from the high order perturbation formulas agree well with the experimental data.
Karwowski, Handbook of Atomic Data, Elsevier Press, New York, 1976.
Online since: August 2013
Authors: Huang Wang, Meng Meng Li, Yu Li Lv, Chang Lin Liao, Xin Wei Liao, Ning Lu
The EOR mechanism of CO2 flooding CO2 EOR mechanism is mainly reflected in the following aspects: (1) viscosity reduction, the viscosity of crude oil dropped significantly when CO2 dissolved in it.
Generally, the higher the original viscosity of crude oil, the higher the percentage of viscosity reduction.
The viscosity of crude oil can be reduced to the 1/10-1/100 of original one. (2) improve oil-water mobility ratio, a large amount of CO2 dissolved in the crude oil and water, the viscosity of crude oil reduced and water viscosity increased by 20% after carbonation, so that the mobility ratio of water and oil is improved and the swept volume can be expanded. (3) oil expansion, when CO2 comes into contact with crude oil a process of dissolution occurs thereby causing swelling, it usually can expanded 10%-100% of original volume. (4) solution gas drive, with the reduction of reservoir pressure, the dissolved CO2 gas escapes from the crude oil to generate a driving force and to improve the oil displacement effect [6]. (5) interfacial tension reduction, CO2 evaporation and dissolution effects will generate ultra-low interfacial tension, the ultra-low interfacial tension is an important factor for EOR [7]. (6) CO2-assisted gravity drainage, in addition to the above flooding mechanism, another
PR3 equation of state is applied in PVT regression via PVTi module of Eclipse 2010 to match the experimental data of single flash vaporization test, multi-degas test and constant composition expansion test.
A 2D compositional numerical model is established based on the above geological data, PVT data and relative permeability data.
Online since: December 2014
Authors: Van Minh Pham, Jin Chun Song, Thi Hoai Thu Vu, Kai Zhang
Application of new technologies, energy saving and cost reduction are development directions of the oil pumping machine.
This shows that the machine can directly replace the traditional conventional beam pumping unit and has higher application value. 1 Introduction Energy consumption reduction, system efficiency improvement, cost reduction and light weight structure are important research topics in the oil field production in China.
The data in the figure and the curve can also be recorded and edited using Excel as shown in Figure 6. 3.2 Finite element analysis of mechanical structure Since the support frame of the mechanism is mainly carrying capacity in the direction on which the guided vehicle is on, this section’s main research object is the guided vehicle support frame, analysis of mechanical characteristics.
Online since: March 2020
Authors: Ahmed Ismail Zaky Farahat, Morsy Amin Morsy, Sameh M. Khafagy
Welding was done to the heat treated steel plates (6mm) using SMAW process and applying AWS-E11016 electrode and as a result an over-tempered region in the heat affected zone was formed with a significant reduction of the ultimate tensile strength of the welded joint.
Reduction of heat input resulted in an increase in the joint strength.
Fig. 3 Intercritical annealing process 2 Hardness test Hardness test was conducted using a Vickers hardness testing machine (United) with a 0.5 kg load and holding time of 17 sec for each measured point and the data were displayed on digital screen.
The increase in the heat input resulted in the reduction of the joint tensile strength as a result of more softening of the HAZ. 2.
Electron beam welding of dual phase steel in the heat treatment condition resulted in a formation of very narrow HAZ with a slight reduction of its hardness values.
Online since: July 2013
Authors: Rhys Pullin, Mark J. Eaton, Carol A. Featherston, Alastair Clarke, Matthew R. Pearson, Karen M. Holford
The data was subsequently analysed using a range of techniques including basic RMS signal levels and frequency-based analysis.
Data was recorded from a wide tensile specimen as continuous AE wavestreams for the duration of a fatigue cycle, both prior to and following impact events.
AE wavestream data was recorded throughout the pre and post impact fatigue cycles.
This is further verified when considering the 100-150kHz and 200-250kHz bands where dynamic changes in the total power are observed for the damaged wavestream data.
Fig 9. shows the same data set and frequency bands used in Fig 8. but presented in a more visual format, where all the frequency bands are contained within one figure.
Online since: October 2014
Authors: N.Yu. Cherkasova, R.S. Timarevskiy, Sergey Veselov
The reduction of grain size increases the bending strength of ceramic material from 270 MPa up to 350 MPa.
The data obtained showed that an application of ball milling is preferable because this technique allows breaking down zirconia agglomerates to two times smaller size in comparison with ultrasonic treatment.
These values are significantly inferior to the literary data according to which the strength fine-grained alumina ceramic is 450 MPa and ZTA ceramic is more than 800 MPa.
The introduction of 20 wt. % 3Y-ZrO2 particles in alumina matrix provides the reduction the Al2O3 average grain size from 2 to 5 µm to 0.2 - 1 µm.
At the same time, these values of strength are significantly lower literature data.
Online since: March 2018
Authors: Rudolf Kawalla, Madlen Ullmann, K. Neh
The reduction per pass was varied from 5 % to 25 %.
Isothermal flow curves were derived from the recorded force-displacement data, considering the correction of the measured values with regard to dissipation energy and friction.
Technical data of the used rolling mill are summarized in Table 1.
Technical data of the used rolling mill (laboratory scale) roll diameter [mm] 360 maximum rolling force [kN] 2400 maximum rolling torque [kNm] 60 Microstructural Characterization and Tensile Testing.
The plates with a thickness of 5.5 mm are rolled in two passes with a reduction of 20 % and a final rolling pass with a reduction of 30 %.
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