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External Insulation Design Impacts on the Energy Consumption and Greenhouse Gas Emission of Building
Online since: March 2016
Authors: Xian Zheng Gong, Hao Li, Miao Miao Fan, Yao Li, Zhi Hong Wang
In order to determine the optimal parameters of the external insulation system and guide the energy saving and greenhouse gas emission reduction of building, a typical student dormitory building in Beijing was chosen as research object.
The above studies mainly focused on the case analysis of existing buildings, and calculated energy consumption and environmental impact of the operation phase, a small part of studies carried out for the environmental impact and cost analysis from the perspective of LCA, however, they were not take the building life cycle energy saving and carbon emission reduction into consideration from the design of insulation systems to get the optimal plan for building life cycle energy saving and carbon emission reduction.
Consequently, this study puts forwards a new perspective and method for the “green” building and external insulation system design, and guides building energy saving and GHG emission reduction.
Materials Cement mortar EPS board Clay brick Wood door Plastic-steel window Concrete Rebar Materials utilization amount,[t] 230.52 1.52 671.78 80a 127.5b 592.56 24.08 Energy consumption of unit product, [kJ/t] 1.72E+06 2.24E+08 4.20E+05 1.53E+05 1.74E+07 1.84E+06 2.89E+07 GHG mission of unit product,[kg-CO2/t] 2.57E+02 9.37E+03 1.32E+02 9.51E+00 9.59E+01 2.37E+02 3.30E+03 Data sources [12] [12] [13] [14] [15] [16] [16] a :unit is m2, the density of wood door is 550kg/ m3 and the thickness is 45mm; b :unit is m2, 60 series plastic-steel window and the size is 1700mm*1500mm.
Therefore, both of materials production and building operation phases are important for building energy-saving and GHG emission reduction, especially the building operation phase, which is the main aspect of energy-saving and GHG emission reduction for building industry in China.
The above studies mainly focused on the case analysis of existing buildings, and calculated energy consumption and environmental impact of the operation phase, a small part of studies carried out for the environmental impact and cost analysis from the perspective of LCA, however, they were not take the building life cycle energy saving and carbon emission reduction into consideration from the design of insulation systems to get the optimal plan for building life cycle energy saving and carbon emission reduction.
Consequently, this study puts forwards a new perspective and method for the “green” building and external insulation system design, and guides building energy saving and GHG emission reduction.
Materials Cement mortar EPS board Clay brick Wood door Plastic-steel window Concrete Rebar Materials utilization amount,[t] 230.52 1.52 671.78 80a 127.5b 592.56 24.08 Energy consumption of unit product, [kJ/t] 1.72E+06 2.24E+08 4.20E+05 1.53E+05 1.74E+07 1.84E+06 2.89E+07 GHG mission of unit product,[kg-CO2/t] 2.57E+02 9.37E+03 1.32E+02 9.51E+00 9.59E+01 2.37E+02 3.30E+03 Data sources [12] [12] [13] [14] [15] [16] [16] a :unit is m2, the density of wood door is 550kg/ m3 and the thickness is 45mm; b :unit is m2, 60 series plastic-steel window and the size is 1700mm*1500mm.
Therefore, both of materials production and building operation phases are important for building energy-saving and GHG emission reduction, especially the building operation phase, which is the main aspect of energy-saving and GHG emission reduction for building industry in China.
Online since: March 2007
Authors: Eui Pak Yoon, Jung Pyung Choi, Tae Woon Nam, Yu Sik Seo
The separation system including a D.C. electric
field with steady D.C. magnetic field was adopted for reduction of inclusion in molten Al alloy.
In this study, the separation system including a A.C. electric field with steady D.C. magnetic field was adopted for reduction of inclusion in molten Al alloy.
● Quantitative analysis of inclusion Also, for obtaining quantitative data, the metallographic analysis must be considered.
In this study, the separation system including a A.C. electric field with steady D.C. magnetic field was adopted for reduction of inclusion in molten Al alloy.
● Quantitative analysis of inclusion Also, for obtaining quantitative data, the metallographic analysis must be considered.
Online since: November 2012
Authors: Fang Xie, Yu Xin Sun, Jin Zhang, Xue Song Yan, Qing Hua Wu
In image matching research, how to ensure that best match’s accuracy of the premise and a significant reduction in the amount of computing is the focus of concern by researchers.
In image matching research, how to ensure that best match’s accuracy of the premise and a significant reduction in the amount of computing is the focus of concern by researchers.
Genetic Algorithms + Data Structures = Evolution Programs. 3rd Ed.
In image matching research, how to ensure that best match’s accuracy of the premise and a significant reduction in the amount of computing is the focus of concern by researchers.
Genetic Algorithms + Data Structures = Evolution Programs. 3rd Ed.
Online since: November 2022
Authors: S. Nallusamy, Emma Ramos-Valle, André Paulino, Pedro Chavez, José C. Alvarez
The main result of the implementation of this proposal is the improvement of productivity based on the reduction of the total picking time of 22.38%.
The main result is a reduction of the total retrieval time by 40% [32].
In the pilot study, a score of 93 points was obtained, which improved the initial of 29. 2.3 Demand forecasting The data considered for the demand prediction covers the company's customer market, mainly spare parts for mining projects, which are located in Peru.
However, this does not represent more than 3 minutes of variation, unlike the activities mentioned above, which had a reduction of up to 54 minutes.
Singh, Warehouse optimisation using demand data analytics - A case study-based approach, International Journal of Business Information Systems, 35(4) (2020) 519-538
The main result is a reduction of the total retrieval time by 40% [32].
In the pilot study, a score of 93 points was obtained, which improved the initial of 29. 2.3 Demand forecasting The data considered for the demand prediction covers the company's customer market, mainly spare parts for mining projects, which are located in Peru.
However, this does not represent more than 3 minutes of variation, unlike the activities mentioned above, which had a reduction of up to 54 minutes.
Singh, Warehouse optimisation using demand data analytics - A case study-based approach, International Journal of Business Information Systems, 35(4) (2020) 519-538
Online since: March 2013
Authors: Pey Shey Wu, Kun Yu Chen, Yi Hung Lin
Both the convex and concave curvatures hamper the attachment of cross-injection coolant to the surface, resulting in a reduction in film cooling effectiveness.
The heating power of the guard heater was so adjusted that the surface thermocouples attached to the opposite sides of the wall at the same location had close readings before taking data.
Adiabatic film cooling effectiveness data was taken under steady state condition and calculated using Eq. (1).
Fig. 11 Effect of M on pitch averaged effectiveness of concave surface at Re=1.24x105 In all, both the convex and concave curvatures result in a reduction in film cooling effectiveness.
Both the convex and concave curvatures hamper the attachment of cross-injection coolant to the surface, resulting in a reduction in film cooling effectiveness.
The heating power of the guard heater was so adjusted that the surface thermocouples attached to the opposite sides of the wall at the same location had close readings before taking data.
Adiabatic film cooling effectiveness data was taken under steady state condition and calculated using Eq. (1).
Fig. 11 Effect of M on pitch averaged effectiveness of concave surface at Re=1.24x105 In all, both the convex and concave curvatures result in a reduction in film cooling effectiveness.
Both the convex and concave curvatures hamper the attachment of cross-injection coolant to the surface, resulting in a reduction in film cooling effectiveness.
Online since: November 2015
Authors: Johannes Glasschröder, Christian Gebbe, Gunther Reinhart
With this approach, unlabeled training data can be used.
Han, Outlier detection for temporal data, Synthesis Lectures on Data Mining and Knowledge Discovery 5, no. 1 (2014) 1-129
Holmes, A data mining framework for electricity consumption analysis from meter data, Industrial Informatics, IEEE Transactions on 7, no. 3 (2011) 399-407
Kasetty, On the need for time series data mining benchmarks: a survey and empirical demonstration, Data Mining and knowledge discovery 7, no. 4 (2003) 349-371
Kumar, Comparative evaluation of anomaly detection techniques for sequence data, In 2008 Eighth IEEE International Conference on Data Mining, pp. 743-748.
Han, Outlier detection for temporal data, Synthesis Lectures on Data Mining and Knowledge Discovery 5, no. 1 (2014) 1-129
Holmes, A data mining framework for electricity consumption analysis from meter data, Industrial Informatics, IEEE Transactions on 7, no. 3 (2011) 399-407
Kasetty, On the need for time series data mining benchmarks: a survey and empirical demonstration, Data Mining and knowledge discovery 7, no. 4 (2003) 349-371
Kumar, Comparative evaluation of anomaly detection techniques for sequence data, In 2008 Eighth IEEE International Conference on Data Mining, pp. 743-748.
Online since: June 2017
Authors: Renato Zagorščak, Hywel Rhys Thomas
An anthracite coal sample is subjected to a range of effective stress conditions in order to investigate a general trend of coal permeability reduction with an increase in effective stress.
(3) α and β are constants obtained from fit to experimental data [3,6,9-12].
Results A general trend of permeability reduction with an increase in effective stress can be observed for the tested sample.
Figure 5 - Klinkenberg plot of measured permeability versus inverse of the mean gas pressure As presented in Fig. 5, measured permeability values follow an approximately linear trend and hence, an extrapolation of measured permeability data up to infinite mean gas pressure is performed.
Despite the lack of data for mean gas pressures higher than 1.6 MPa, it can be inferred from the existing trends that the mean gas pressure required to minimize and possibly offset the slip flow at higher effective stresses would be approximately 2.0 MPa.
(3) α and β are constants obtained from fit to experimental data [3,6,9-12].
Results A general trend of permeability reduction with an increase in effective stress can be observed for the tested sample.
Figure 5 - Klinkenberg plot of measured permeability versus inverse of the mean gas pressure As presented in Fig. 5, measured permeability values follow an approximately linear trend and hence, an extrapolation of measured permeability data up to infinite mean gas pressure is performed.
Despite the lack of data for mean gas pressures higher than 1.6 MPa, it can be inferred from the existing trends that the mean gas pressure required to minimize and possibly offset the slip flow at higher effective stresses would be approximately 2.0 MPa.
Online since: December 2012
Authors: Jia Hao Qiu, Xian Xun Ge, Bing Huang, Jia Bing Feng, Shen Yuan Fu, Pin Gan Song
Compared with PP/starch blend, the presence of diethanol amine changes the morphology and increases the plasticity of starch due to the reduction effect of intermolecular hydrogen bonding interactions.
Tensile properties of samples were measured with a CMT-6000 Electric Universal Tester (Shenzhen SANS, China) at 25±2 oC according to ASTM 638 standard, and the data reported here were the means of quintuplicate experiments.
Flexural measurements were also carried out on a CMT-6000 Electric Universal Tester with a span of 40 mm (transversal area of 13×3 mm) according to ASTM D 790 standard, and the data reported here were the means of quintuplicate experiments.
Srabayeeta Basu Roy also observed that incorporating 20 wt% potato starch leads to a reduction of tensile strength of PP by about 30 %, but he did not give the change of elongation at break [9].
Tensile properties of samples were measured with a CMT-6000 Electric Universal Tester (Shenzhen SANS, China) at 25±2 oC according to ASTM 638 standard, and the data reported here were the means of quintuplicate experiments.
Flexural measurements were also carried out on a CMT-6000 Electric Universal Tester with a span of 40 mm (transversal area of 13×3 mm) according to ASTM D 790 standard, and the data reported here were the means of quintuplicate experiments.
Srabayeeta Basu Roy also observed that incorporating 20 wt% potato starch leads to a reduction of tensile strength of PP by about 30 %, but he did not give the change of elongation at break [9].
Online since: November 2025
Authors: Abayomi Olukayode Ewetade, Mopelola Abidemi Idowu, Simeon Olutayo Odunfa, Joseph Olawale Akinyele
The GPCW showed a 43% reduction in strength between the 7th and 28th days, with a further decrease of 11% from 28 to 365 days.
This reduction can be attributed to the absorption of these ions by the cured concrete samples.
The presence of these oxides in the efflorescence must have contributed to the reduction in strength experienced by the GPCD at 180 days and after.
Scientific Data, 9(1), (2022)1–14
“Reduction in CO2 emissions during production of cement, with partial replacement of traditional raw materials by civil construction waste (CCW).”
This reduction can be attributed to the absorption of these ions by the cured concrete samples.
The presence of these oxides in the efflorescence must have contributed to the reduction in strength experienced by the GPCD at 180 days and after.
Scientific Data, 9(1), (2022)1–14
“Reduction in CO2 emissions during production of cement, with partial replacement of traditional raw materials by civil construction waste (CCW).”
Online since: January 2012
Authors: W.G. Zhang, W.J. Dan
This leads to an increase in the radius of curvature and elongation by plastic deformation, a reduction in the bending angle of the bent tube, a decrease in dimensional accuracy and fits with others difficulty.
Some studies have done with FEM models, which can accurately analyzed tube bending process due to its effective reduction the total cost of a project by decreasing the number of tryouts and tools.
The calculated springback angles are shown in Fig.3 and the experiment data show in Fig.4.
The calculated and measured key dimensions shows in Table 2, in which we find that the calculated results are in a good agreement with experiments data.
Some studies have done with FEM models, which can accurately analyzed tube bending process due to its effective reduction the total cost of a project by decreasing the number of tryouts and tools.
The calculated springback angles are shown in Fig.3 and the experiment data show in Fig.4.
The calculated and measured key dimensions shows in Table 2, in which we find that the calculated results are in a good agreement with experiments data.