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Online since: April 2013
Authors: Estevão Freire, Victor Esteves, Felipe Dias, Claudia Morgado
With the inclusion of CCGS as Clean Development Mechanism (CDM) project activity, companies will invest more on CCGS projects due to the possibility of generating Certificated Emission Reduction (CER).
Through data on emission and capture of CO2 [1,2,3], published in technical and scientific reports and articles, such as emissions inventories, it was possible to calculate the total emissions and those that can be captured from four industrial enterprises in the state of Rio de Janeiro that emit large quantities of carbon gas: the CSN and CSA steel mills, the REDUC refinery and the COMPERJ petrochemicals complex.
Source: Authors - Data: ANP [1], CDP [2] & Ecofys [3] Total Emissions (tCO2/year) Emissions Captured (tCO2/year) REDUC 2,510,698.86 2,259,628.98 CSA 5,700,000.00 2,850,000.00 CSN 11,958,667.00 5,979,333.50 COMPERJ 1.863.695.64 1.677.326.07 TOTAL 22,033,061.50 12,766,288.55 By preparing a map (Figure 1) through the SIG interface, it was possible to calculate the distances between the emission sources and the production fields, permitting calculation of the expenses.
Source: Authors - Data: ANP [1] For injection of CO2 (Figure 2), 18 injection wells were chosen (6 in Barracuda and 12 in Marlim), associated with four platforms of Petrobras, two semi-submersible platforms P-19 and P-26 and two Floating Production and Storage Offtake platforms (FPSOs) P-37 and P-43.
Source: Authors - Data: ANP [1] The extra production of crude oil because of the CO2 injection in the reservoir was calculated at 22.5 million barrels a year, which 13.8 million were from Marlim (4.5 ton of CO2 per ton of oil) and 8.5 million from Barracuda (3.7 ton of CO2 per ton of oil) [6].
Through data on emission and capture of CO2 [1,2,3], published in technical and scientific reports and articles, such as emissions inventories, it was possible to calculate the total emissions and those that can be captured from four industrial enterprises in the state of Rio de Janeiro that emit large quantities of carbon gas: the CSN and CSA steel mills, the REDUC refinery and the COMPERJ petrochemicals complex.
Source: Authors - Data: ANP [1], CDP [2] & Ecofys [3] Total Emissions (tCO2/year) Emissions Captured (tCO2/year) REDUC 2,510,698.86 2,259,628.98 CSA 5,700,000.00 2,850,000.00 CSN 11,958,667.00 5,979,333.50 COMPERJ 1.863.695.64 1.677.326.07 TOTAL 22,033,061.50 12,766,288.55 By preparing a map (Figure 1) through the SIG interface, it was possible to calculate the distances between the emission sources and the production fields, permitting calculation of the expenses.
Source: Authors - Data: ANP [1] For injection of CO2 (Figure 2), 18 injection wells were chosen (6 in Barracuda and 12 in Marlim), associated with four platforms of Petrobras, two semi-submersible platforms P-19 and P-26 and two Floating Production and Storage Offtake platforms (FPSOs) P-37 and P-43.
Source: Authors - Data: ANP [1] The extra production of crude oil because of the CO2 injection in the reservoir was calculated at 22.5 million barrels a year, which 13.8 million were from Marlim (4.5 ton of CO2 per ton of oil) and 8.5 million from Barracuda (3.7 ton of CO2 per ton of oil) [6].
Online since: November 2012
Authors: Dong Lian Tan, Wen Hua Yan
In the specimen loading process under every level of load the mid-span deflection and stiffness reduction coefficient is shown in Table 1, the statistics data of beam’s crack width is shown in Table 2.
And the regression equation of the bending stiffness reduction coefficient and crack height coefficient is obtained: (1) Correlation coefficient: R=0.73041 Figure 1 Regression figure of bending stiffness reduction coefficient and crack width Relationship between Crack height and Bending Stiffness Reduction Coefficient Crack height directly affects the moment of inertia of beam’s effective cross-section, with the crack developing along the beam height, the section neutral axis rise, and the bending stiffness reduction coefficient decreases.
Figure 2 Relationship curve of bending stiffness reduction In order to better study the relationship of crack’s developed height and bending stiffness reduction coefficient, the crack’s height coefficient H is introduced, i.e
Therefore, bending stiffness reduction coefficient .
Due to the limited test data of this paper, it can’t reflect the obvious law between crack spacing and stiffness reduction coefficient.
And the regression equation of the bending stiffness reduction coefficient and crack height coefficient is obtained: (1) Correlation coefficient: R=0.73041 Figure 1 Regression figure of bending stiffness reduction coefficient and crack width Relationship between Crack height and Bending Stiffness Reduction Coefficient Crack height directly affects the moment of inertia of beam’s effective cross-section, with the crack developing along the beam height, the section neutral axis rise, and the bending stiffness reduction coefficient decreases.
Figure 2 Relationship curve of bending stiffness reduction In order to better study the relationship of crack’s developed height and bending stiffness reduction coefficient, the crack’s height coefficient H is introduced, i.e
Therefore, bending stiffness reduction coefficient .
Due to the limited test data of this paper, it can’t reflect the obvious law between crack spacing and stiffness reduction coefficient.
Online since: November 2020
Authors: A.S. Samardak, Alexey V. Ognev, Farzad Nasirpouri, Ghader Ahmadpour, Aleksey Yu. Samardak
There was an interdiffusion of Nd and Fe, both after oxidation and after reduction.
We studied Nd(Fe1-xCox)B nanoparticles after oxidation and reduction.
Partial reduction was detected with the formation of the Nd2(Fe1-xCox)14B phase.
This result is confirmed by the data of the element analysis.
Comparison of the data with the results of XRD measurements indicates the formation of FeCo alloy nanoparticles.
We studied Nd(Fe1-xCox)B nanoparticles after oxidation and reduction.
Partial reduction was detected with the formation of the Nd2(Fe1-xCox)14B phase.
This result is confirmed by the data of the element analysis.
Comparison of the data with the results of XRD measurements indicates the formation of FeCo alloy nanoparticles.
Prediction and Measurement of Quenching and Pre-Stretching Stress in 7050 Aluminum Alloy Thick Plate
Online since: April 2021
Authors: Jun Qiang Wang, Xiang Xiao, Cheng Liu, Yu Xing Tian, Guan Mei Niu, Hai Long Cao
It has been recorded that more than 90% reduction of residual stresses were observed in a pre-stretching rage of 2-3%.
The experimental data of the ultrasonic and the crack compliance methods were found to correspond well with the simulated models.
Fig. 2 Schematic diagram model and size of the thick plate 2 Predicted Results and Analysis The data on path 2 is extracted to analyze the quenching and pre-stretching residual stress.
It can be found that the quenching residual stress has obvious reduction after pre-stretching in the Fig.3.
Modelling stress reduction techniques of cold compression and stretching in wrought aluminium alloy products[J].
The experimental data of the ultrasonic and the crack compliance methods were found to correspond well with the simulated models.
Fig. 2 Schematic diagram model and size of the thick plate 2 Predicted Results and Analysis The data on path 2 is extracted to analyze the quenching and pre-stretching residual stress.
It can be found that the quenching residual stress has obvious reduction after pre-stretching in the Fig.3.
Modelling stress reduction techniques of cold compression and stretching in wrought aluminium alloy products[J].
Online since: December 2010
Authors: Y. Huang, Y. Liu, G.L. Zhu
In order to maximize the loss
reduction of this process, the laser scribing technics was investigated in details.
In this work, three laser scribing parameters including pulse energy, scanning velocity and scribing spacing, which are highly related to the loss reduction, were selected for the study.
The results indicate that the subsequence of significance of the three factors on core loss reduction is as follows: pulse energy, scribing spacing and scanning velocity.
In this work, we try to get the greatest degree of core loss reduction by directing a laser beam on the surface of the WISCO Company's product 30Q130.
As factors affecting core loss reducing level are sundry and interrelated, an orthogonal method was employed to design the experiment and analyze data.
In this work, three laser scribing parameters including pulse energy, scanning velocity and scribing spacing, which are highly related to the loss reduction, were selected for the study.
The results indicate that the subsequence of significance of the three factors on core loss reduction is as follows: pulse energy, scribing spacing and scanning velocity.
In this work, we try to get the greatest degree of core loss reduction by directing a laser beam on the surface of the WISCO Company's product 30Q130.
As factors affecting core loss reducing level are sundry and interrelated, an orthogonal method was employed to design the experiment and analyze data.
Online since: October 2012
Authors: Qi Long Miao, Yuan Yuan Ding, Yong Wang
Based on the daily precipitation data in Northeast China (NE China) from 1961 to 2010, six extreme precipitation indices (RX1day, Rx5day, R10mm, R20mm, R95T, and R99T) in NE China were calculated, and the temporal and spatial characteristics of extreme precipitation events were analyzed.
Based on the daily observational data of 100 stations in Northeast China (NE China), spatial and temporal variations of extreme precipitation in the last 50 years are analyzed in the present study.
Data and Methods Study Area.
Data.
The data were provided by the National Climatic Center (NCC) of the China Meteorological Administration (CMA).
Based on the daily observational data of 100 stations in Northeast China (NE China), spatial and temporal variations of extreme precipitation in the last 50 years are analyzed in the present study.
Data and Methods Study Area.
Data.
The data were provided by the National Climatic Center (NCC) of the China Meteorological Administration (CMA).
Online since: February 2026
Authors: Rilwan Kayode Apalowo, Oladuwama Joel Owoloja, Samuel Olusina Famuyiwa, Elijah Oyebanji Oyeleke, Joshua Ifedayo Kehinde
The model was validated experimentally using thermocouples and a data acquisition system, with simulation results closely matching measured data, showing errors below 0.5%.
The test setup comprises the power supply, semiconductor module with a parallel heat sink, thermocouple, multimeter, and data acquisition system.
Temperature measurements are acquired using a multichannel data acquisition system, with ambient conditions maintained at 25 °C.
The red dashed curves represent the numerically predicted junction temperatures, while the solid black curves depict the experimentally measured data.
The data reveals a clear improvement in thermal performance with the addition of fins.
The test setup comprises the power supply, semiconductor module with a parallel heat sink, thermocouple, multimeter, and data acquisition system.
Temperature measurements are acquired using a multichannel data acquisition system, with ambient conditions maintained at 25 °C.
The red dashed curves represent the numerically predicted junction temperatures, while the solid black curves depict the experimentally measured data.
The data reveals a clear improvement in thermal performance with the addition of fins.
Online since: October 2014
Authors: Ivan Chmúrny
Computed, this represents a reduction of heat loss from the value of 242.6 kW to 92.4 kW, hence a reduction of heat loss by 61.6%.
Fig. 4 Carbon dioxide concentration in ppm in three classrooms during class Evaluation of energy consumption according to energy carriers The documentation of data on energy consumption in this analysis is based on the measured data from operation.
A presentation of the data on energy consumption in a comparison of individual years and the condition of the building in these years mainly concerns whether such a comparison of the condition makes sense, namely, if comparable data is being compared.
However, the window replacement appears in the measured data from operation.
However, we cannot separate the measured data from the operation since we do not have electricity sub meters.
Fig. 4 Carbon dioxide concentration in ppm in three classrooms during class Evaluation of energy consumption according to energy carriers The documentation of data on energy consumption in this analysis is based on the measured data from operation.
A presentation of the data on energy consumption in a comparison of individual years and the condition of the building in these years mainly concerns whether such a comparison of the condition makes sense, namely, if comparable data is being compared.
However, the window replacement appears in the measured data from operation.
However, we cannot separate the measured data from the operation since we do not have electricity sub meters.
Online since: February 2012
Authors: Jun Jie Hao, Zhi Meng Guo, Wei Wei Yang, Xiao Yu
After getting gel-coated iron powder, we can obtain Y2O3-coated iron powder through heating and deacidizing in hydrogen reduction furnace.
Fig. 1 X-ray diffraction pattern of the reduced iron powder (2) Morphology of ODS iron powder before and after reduction Fig.2 shows the SEM images of ODS iron powder before and after reduction.
Fig. 2 SEM images of ODS iron powder before and after reduction: (A), (a): before reduction (B), (b): after reduction.
The cause is the residual carbon in the reduction can form the pearlite in the process of sintering.
Samples Sintering pressure /MPa Sintering temperature /˚C Sintering time /min Relative density /% RH /HRB UTS /MPa elongation /% Pure iron powder 40 950 8 98.6 56 305 30.3 ODS iron powder 40 950 8 98 81 510 5.2 Table.1 shows the performance datas of iron powder before and after dispersion strengthening in the same SPS conditions.
Fig. 1 X-ray diffraction pattern of the reduced iron powder (2) Morphology of ODS iron powder before and after reduction Fig.2 shows the SEM images of ODS iron powder before and after reduction.
Fig. 2 SEM images of ODS iron powder before and after reduction: (A), (a): before reduction (B), (b): after reduction.
The cause is the residual carbon in the reduction can form the pearlite in the process of sintering.
Samples Sintering pressure /MPa Sintering temperature /˚C Sintering time /min Relative density /% RH /HRB UTS /MPa elongation /% Pure iron powder 40 950 8 98.6 56 305 30.3 ODS iron powder 40 950 8 98 81 510 5.2 Table.1 shows the performance datas of iron powder before and after dispersion strengthening in the same SPS conditions.
Online since: December 2018
Authors: Hiroshi Utsunomiya, Ryo Matsumoto, Yong Deok Im, Sang Min Lee
Deformation twinning due to low SFE is observed even in the case of low reduction in thickness.
As the reduction increases, grains are refined by intersections of shear bands.
The reduction in thickness was 10 to 20% per each pass.
The maximum total reduction applied was 90%.
Single iteration clean-up of EBSD data was performed to reduce the point of zero solutions.
As the reduction increases, grains are refined by intersections of shear bands.
The reduction in thickness was 10 to 20% per each pass.
The maximum total reduction applied was 90%.
Single iteration clean-up of EBSD data was performed to reduce the point of zero solutions.