Reservoir and fracturing parameters are essential to evaluate well production after fracturing treatment. Conventional technologies to get these parameters are costly in both an absolute sense and in possible temporary loss of production. In this paper, we present a new technology to acquire parameters from the fracturing fluid flowing back process. The technology includes a new mathematical model and a new numerical method. The model considers the situations of a variable flow rate and different boundaries. This technology can reduce cost and time, and put the fractured well into production ahead of time.
{"title":"A New Approach of Parameters Identification from Fluid Flowing Back after Hydraulic Fracturing","authors":"Lei Xu","doi":"10.1145/3208854.3208867","DOIUrl":"https://doi.org/10.1145/3208854.3208867","url":null,"abstract":"Reservoir and fracturing parameters are essential to evaluate well production after fracturing treatment. Conventional technologies to get these parameters are costly in both an absolute sense and in possible temporary loss of production. In this paper, we present a new technology to acquire parameters from the fracturing fluid flowing back process. The technology includes a new mathematical model and a new numerical method. The model considers the situations of a variable flow rate and different boundaries. This technology can reduce cost and time, and put the fractured well into production ahead of time.","PeriodicalId":365707,"journal":{"name":"IEEA '18","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123704679","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pollution control is the hot topic at present. With the deepening of the process of human civilization, ecological security and environmental safety have become important material bases for the sustainable development of human society. The government needs to take the necessary responsibility in corporate pollution control and play a leading role. Based on the government responsibility, this paper analyzes the situation of Xiaoshan small and medium-sized enterprises pollution control. By fully recognizing the reasons for the lack of government responsibility in the process of pollution control and combining with China's national conditions, this paper proposes the government's direction and thinking in the pollution control of enterprises
{"title":"Research on Government Responsibility for Pollution Control of Small and Medium-Size Enterprise - Xiaoshan in Hangzhou as an Example: A Case Study of Xiaoshan, Hangzhou","authors":"Lingling Li","doi":"10.1145/3208854.3208880","DOIUrl":"https://doi.org/10.1145/3208854.3208880","url":null,"abstract":"Pollution control is the hot topic at present. With the deepening of the process of human civilization, ecological security and environmental safety have become important material bases for the sustainable development of human society. The government needs to take the necessary responsibility in corporate pollution control and play a leading role.\u0000 Based on the government responsibility, this paper analyzes the situation of Xiaoshan small and medium-sized enterprises pollution control. By fully recognizing the reasons for the lack of government responsibility in the process of pollution control and combining with China's national conditions, this paper proposes the government's direction and thinking in the pollution control of enterprises","PeriodicalId":365707,"journal":{"name":"IEEA '18","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124656440","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The reduction of aircraft engine noise has been a priority in the aviation industry for many years. It can cause community annoyance with various health hazard. Minimizing sound emission requires an understanding of engine noise. But it's a quite challenging due to the complex nature of aircraft systems and geometries. Using a model of an aero-engine duct, we provide a more in-depth look at the acoustical field in aircraft engines. Aircraft noise is a noise pollution produced by any aircraft or its components, during various phases of a flight: on the ground while parked such as auxiliary power units, while taxiing, on run-up from propeller and jet exhaust, during take-off, or landing. In this paper, the CFM 56 flow duct and blade is as the research object. And finally this model will show that: [1] Acoustic pressure field and pressure distribution for the cases of hard (top) and lined (bottom) duct wall with mean flow. [2] Compressible Potential Flow (cpf)--for modeling the background mean-flow velocity field as a potential flow. [3] Linearized Potential Flow, Boundary Mode (aebm)--for calculating the boundary eigenmode to be used as the source of the acoustic noise in the background mean-flow. [4] Linearized Potential Flow, Frequency Domain (ae, ae2)--for modeling the time harmonic acoustic field above and below the source plane.
{"title":"Modal Analysis of Commercial Aircraft Engine Noise Source and Noise Reduction Technology","authors":"Md Hasib Zubayer, Jinwu Wu","doi":"10.1145/3208854.3208902","DOIUrl":"https://doi.org/10.1145/3208854.3208902","url":null,"abstract":"The reduction of aircraft engine noise has been a priority in the aviation industry for many years. It can cause community annoyance with various health hazard. Minimizing sound emission requires an understanding of engine noise. But it's a quite challenging due to the complex nature of aircraft systems and geometries. Using a model of an aero-engine duct, we provide a more in-depth look at the acoustical field in aircraft engines. Aircraft noise is a noise pollution produced by any aircraft or its components, during various phases of a flight: on the ground while parked such as auxiliary power units, while taxiing, on run-up from propeller and jet exhaust, during take-off, or landing. In this paper, the CFM 56 flow duct and blade is as the research object. And finally this model will show that:\u0000 [1] Acoustic pressure field and pressure distribution for the cases of hard (top) and lined (bottom) duct wall with mean flow.\u0000 [2] Compressible Potential Flow (cpf)--for modeling the background mean-flow velocity field as a potential flow.\u0000 [3] Linearized Potential Flow, Boundary Mode (aebm)--for calculating the boundary eigenmode to be used as the source of the acoustic noise in the background mean-flow.\u0000 [4] Linearized Potential Flow, Frequency Domain (ae, ae2)--for modeling the time harmonic acoustic field above and below the source plane.","PeriodicalId":365707,"journal":{"name":"IEEA '18","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128366668","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. M. Abdoul-latif, Jia Xu, Jianxi Yao, Songyuan Dai
This article describes the incorporation of Au nanopaticles (Au NPs) layer into a TiO2 layer in the mesoporous perovskite solar cells. Finding the good parameters Au NPs for improving the Short Current Density (Jsc) or Power Conversion Efficiency (PCE) depends on the parameters of plasmonic effect. This effect depends on the size of Au NPs synthesis and their distribution.
{"title":"Investigation Au Nanoparticles Fabrication and Efficiency of the TiO2/Au NPs Mesoporous Perovskite Solar Cells","authors":"M. M. Abdoul-latif, Jia Xu, Jianxi Yao, Songyuan Dai","doi":"10.1145/3208854.3208883","DOIUrl":"https://doi.org/10.1145/3208854.3208883","url":null,"abstract":"This article describes the incorporation of Au nanopaticles (Au NPs) layer into a TiO2 layer in the mesoporous perovskite solar cells. Finding the good parameters Au NPs for improving the Short Current Density (Jsc) or Power Conversion Efficiency (PCE) depends on the parameters of plasmonic effect. This effect depends on the size of Au NPs synthesis and their distribution.","PeriodicalId":365707,"journal":{"name":"IEEA '18","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126592275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Stabilizing high-fill slopes for mountainous airports in China is a significant geotechnical engineering challenge and needs to be resolved for airport construction to go ahead. This paper presents a dynamic stability analysis of the #13 landslide at Panzhihua Airport in Panzhihua City, China. Based on spatial survey information from a surface survey, surface monitoring, deep hole drilling, and geophysical exploration, numerical analysis was used to back-analyze the mechanical parameters of the slope. The FLAC3D method was used to analyze the stability for two profiles of the landslide, and the numerical analysis was associated with a strength reduction method to ensure the reliability of the mechanical parameters. Finally, based on a geological field investigation, the obtained mechanical parameters were used for the stability analysis of a three-dimensional slope. The analysis results were in good agreement with the field observations. These results indicate that an analysis method based on spatial survey information is feasible. This method not only helps reflect the sliding mechanism and predict the deformation development tendency, but also can effectively compensate for the deficiencies of field investigations by providing the necessary supplementary information.
{"title":"Analyzing the Stability of a High-Fill Slope based on Spatial Survey Information","authors":"Xuanxing Ding, Lijuan Sun, Di Wu","doi":"10.1145/3208854.3208887","DOIUrl":"https://doi.org/10.1145/3208854.3208887","url":null,"abstract":"Stabilizing high-fill slopes for mountainous airports in China is a significant geotechnical engineering challenge and needs to be resolved for airport construction to go ahead. This paper presents a dynamic stability analysis of the #13 landslide at Panzhihua Airport in Panzhihua City, China. Based on spatial survey information from a surface survey, surface monitoring, deep hole drilling, and geophysical exploration, numerical analysis was used to back-analyze the mechanical parameters of the slope. The FLAC3D method was used to analyze the stability for two profiles of the landslide, and the numerical analysis was associated with a strength reduction method to ensure the reliability of the mechanical parameters. Finally, based on a geological field investigation, the obtained mechanical parameters were used for the stability analysis of a three-dimensional slope. The analysis results were in good agreement with the field observations. These results indicate that an analysis method based on spatial survey information is feasible. This method not only helps reflect the sliding mechanism and predict the deformation development tendency, but also can effectively compensate for the deficiencies of field investigations by providing the necessary supplementary information.","PeriodicalId":365707,"journal":{"name":"IEEA '18","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115309412","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Q & A is an indispensable part in the teaching process. Developing a dialogue-based automated question answering system can answer students' questions accurately and assist the effective teaching of the course. Information retrieval has become one of the core courses in information technology education in major universities in China. However, there are still some problems in the current information retrieval course. This study takes the course of information retrieval as an example to design and implement a QA system based on Lucene. This system mainly includes four core function modules of data set construction, keyword extraction, problem retrieval and answer extraction. The workflow of the system is as follows: First, the system segments the textual content entered by the user into words and extracts the keywords. Then it would retrieve the keywords in the FAQ. Later, the system would extract the matching question and corresponding answer from the retrieved questions, and finally return the answer to the user. The development of QA system is based on the B/S architecture, which is finally presented to the user in the form of web pages. At the same time, the responsive design allows the system to render well in multiple terminals. Finally, the function test and performance test of the system are also carried out. The result shows that after the user enters the question, the system can return the relevant answer, and the accuracy rate is 0.84, which indicates that the automatic question answering system can basically meet the needs of users in both function and performance.
{"title":"Design and Implementation of Automatic Question Answering System in Information Retrieval","authors":"Xiaomei Feng, Qingtang Liu, C. Lao, Dinghui Sun","doi":"10.1145/3208854.3208862","DOIUrl":"https://doi.org/10.1145/3208854.3208862","url":null,"abstract":"Q & A is an indispensable part in the teaching process. Developing a dialogue-based automated question answering system can answer students' questions accurately and assist the effective teaching of the course. Information retrieval has become one of the core courses in information technology education in major universities in China. However, there are still some problems in the current information retrieval course. This study takes the course of information retrieval as an example to design and implement a QA system based on Lucene. This system mainly includes four core function modules of data set construction, keyword extraction, problem retrieval and answer extraction. The workflow of the system is as follows: First, the system segments the textual content entered by the user into words and extracts the keywords. Then it would retrieve the keywords in the FAQ. Later, the system would extract the matching question and corresponding answer from the retrieved questions, and finally return the answer to the user. The development of QA system is based on the B/S architecture, which is finally presented to the user in the form of web pages. At the same time, the responsive design allows the system to render well in multiple terminals. Finally, the function test and performance test of the system are also carried out. The result shows that after the user enters the question, the system can return the relevant answer, and the accuracy rate is 0.84, which indicates that the automatic question answering system can basically meet the needs of users in both function and performance.","PeriodicalId":365707,"journal":{"name":"IEEA '18","volume":" 7","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120984544","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Napatsawan Promuppatum, Apichart Kongpann, T. Boonpramote, C. Wangnai, O. Chavalparit
Recently, sustainable development becomes a major global issue for the mankind. In order to meet this criteria, main objectives that composed of three aspects which are environment, economic, and social has to be completely met. Practically, the concept of corporate social responsibility (CSR) is one of a useful tools that can promote the sustainable development effectively in which decent amount of renown companies in Thailand operate and find it quite successful for some degrees. For this study, the goal was to investigate the current situation of renewable energy for a community project in Thailand. The biogas production from swine farms was used as the representative case study to evaluate the economic, environmental and social performance. The key performance indicators (KPI) were used which based on the ISO 2600:2010. The study revealed that the project provided the returns rate on the investment to the public in the form of "Social return on investment" (SROI) to be 6.59 which indicated that the CSR project is worth for the investment. In addition, the net present value (NPV) could also promote the benefits in term of economic for about 3,038,137 THB per year. For the environmental perspective, the biogas from swine farm can cause the reduction in energy/fuel consumption along with the utilization of treated waste sludge as a fertilizer which also gain the carbon credits from GHG emission mitigation. As for the social perspective, the benefit gains were in the form of monetary along with the increasing of employment rate which resulted from the CSR biogas production projects were used to calculate for the economic perspective as the direct economic value which accounted for over 389,149 THB per year. The results of this study can be a useful case study for project owners or related sectors to make the improvement and moving toward the sustainable development later on.
{"title":"Evaluation of CSR Project from the Economic, Environmental and Social Performances Monitoring by Using the Case Study of Renewable Energy for a Community Project in Thailand","authors":"Napatsawan Promuppatum, Apichart Kongpann, T. Boonpramote, C. Wangnai, O. Chavalparit","doi":"10.1145/3208854.3208900","DOIUrl":"https://doi.org/10.1145/3208854.3208900","url":null,"abstract":"Recently, sustainable development becomes a major global issue for the mankind. In order to meet this criteria, main objectives that composed of three aspects which are environment, economic, and social has to be completely met. Practically, the concept of corporate social responsibility (CSR) is one of a useful tools that can promote the sustainable development effectively in which decent amount of renown companies in Thailand operate and find it quite successful for some degrees. For this study, the goal was to investigate the current situation of renewable energy for a community project in Thailand. The biogas production from swine farms was used as the representative case study to evaluate the economic, environmental and social performance. The key performance indicators (KPI) were used which based on the ISO 2600:2010. The study revealed that the project provided the returns rate on the investment to the public in the form of \"Social return on investment\" (SROI) to be 6.59 which indicated that the CSR project is worth for the investment. In addition, the net present value (NPV) could also promote the benefits in term of economic for about 3,038,137 THB per year. For the environmental perspective, the biogas from swine farm can cause the reduction in energy/fuel consumption along with the utilization of treated waste sludge as a fertilizer which also gain the carbon credits from GHG emission mitigation. As for the social perspective, the benefit gains were in the form of monetary along with the increasing of employment rate which resulted from the CSR biogas production projects were used to calculate for the economic perspective as the direct economic value which accounted for over 389,149 THB per year. The results of this study can be a useful case study for project owners or related sectors to make the improvement and moving toward the sustainable development later on.","PeriodicalId":365707,"journal":{"name":"IEEA '18","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131147120","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Adam Mohamed Ahmed Abdo, Xiongwen Zhao, Yu Zhang, Chen Xu, Abdinasir A. Shire
Millimeter wave (mm-Wave) communications is a key technology to meet the increasing demand for high data rate. Meanwhile, the mm-Wave base station (BS) needs to employ a large number of antenna elements to increase the gain as well as to serve a huge number of users. However, the integration of a vast number of antenna elements will cause dimensionality problem due to large dimension of channel correlation matrix. Therefore, we propose a novel codebook construction design based on Fast CUR-decomposition to minimise this problem. The proposed method represents the original correlation matrix as the product of three very low dimension matrices compared to the original. Then the new rotated codebook is constructed by the new rotation matrix. Moreover, we evaluate our method with the original matrix regarding compression ratio (CR) and mismatch error between the two matrices. Additionally, we provide the ergodic sum-rate capacities for the conventional methods such as singular value decomposition (SVD) technique, zero-forcing (ZF), and a matched filter (MF) to compare with our proposed method. Furthermore, we analyse the enhancement of the system capacity regarding the number of antenna elements and the required feedback bits. The simulation results show that the proposed method can achieve good results after minimising dimension problem. This work it can be extended in the future to be applied to a 5G system with over 100 antenna elements.
{"title":"Minimizing the Dimensionality Problem in mm-Wave with Large Number of Antenna Elements Using Fast CUR-Decomposition","authors":"Adam Mohamed Ahmed Abdo, Xiongwen Zhao, Yu Zhang, Chen Xu, Abdinasir A. Shire","doi":"10.1145/3208854.3208855","DOIUrl":"https://doi.org/10.1145/3208854.3208855","url":null,"abstract":"Millimeter wave (mm-Wave) communications is a key technology to meet the increasing demand for high data rate. Meanwhile, the mm-Wave base station (BS) needs to employ a large number of antenna elements to increase the gain as well as to serve a huge number of users. However, the integration of a vast number of antenna elements will cause dimensionality problem due to large dimension of channel correlation matrix. Therefore, we propose a novel codebook construction design based on Fast CUR-decomposition to minimise this problem. The proposed method represents the original correlation matrix as the product of three very low dimension matrices compared to the original. Then the new rotated codebook is constructed by the new rotation matrix. Moreover, we evaluate our method with the original matrix regarding compression ratio (CR) and mismatch error between the two matrices. Additionally, we provide the ergodic sum-rate capacities for the conventional methods such as singular value decomposition (SVD) technique, zero-forcing (ZF), and a matched filter (MF) to compare with our proposed method. Furthermore, we analyse the enhancement of the system capacity regarding the number of antenna elements and the required feedback bits. The simulation results show that the proposed method can achieve good results after minimising dimension problem. This work it can be extended in the future to be applied to a 5G system with over 100 antenna elements.","PeriodicalId":365707,"journal":{"name":"IEEA '18","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133696445","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Molten blast furnace slag(BFS) is a huge waste energy in iron and steel industry, the waste heat recovery of the molten BFS has attracted more and more attentions in recent years. A new process for generating hydrogen-enriched syngas by the coal gasification using molten BFS as heat carrier is built, based on this, numerical simulation of coal gasification reaction in the gasifier is carried out with finite rate/eddy dissipation model using ANSYS FLUENT, the distribution of gas components in the molten pool is analyzed and the effect of steam coal ratio(S/C) on the composition of syngas is investigated. At the same time, the coal gasification reaction process is optimized by using matrix analysis method based on orthogonal experiment. Results show that the main gas components in the molten pool are steam, H2, CO and CO2. The steam and CO in the molten pool are mainly distributed outside of the bubble, while H2 and CO2 are mainly distributed in the center of the bubble. Meanwhile, the high S/C ratio will reduce the content of CO in the syngas, which is not conducive to the process of coal gasification. After optimization, the gas holdup in the molten pool increases to 9.429%, the turbulent kinetic energy of molten BFS rises to 12.88x10-3m2/s2, and the splashing rate of molten BFS drops to 2.024. The flow of molten BFS and the mixing degree of gas-liquid phase in the molten pool are enhanced, and the effective composition and calorific value of outlet syngas are also improved.
{"title":"Numerical Simulation and Optimization of Slag Bath Coal Gasification Reaction","authors":"Yaquan Zhan, Wenjun Duan, Q. Yu, Tianwei Wu","doi":"10.1145/3208854.3208863","DOIUrl":"https://doi.org/10.1145/3208854.3208863","url":null,"abstract":"Molten blast furnace slag(BFS) is a huge waste energy in iron and steel industry, the waste heat recovery of the molten BFS has attracted more and more attentions in recent years. A new process for generating hydrogen-enriched syngas by the coal gasification using molten BFS as heat carrier is built, based on this, numerical simulation of coal gasification reaction in the gasifier is carried out with finite rate/eddy dissipation model using ANSYS FLUENT, the distribution of gas components in the molten pool is analyzed and the effect of steam coal ratio(S/C) on the composition of syngas is investigated. At the same time, the coal gasification reaction process is optimized by using matrix analysis method based on orthogonal experiment. Results show that the main gas components in the molten pool are steam, H2, CO and CO2. The steam and CO in the molten pool are mainly distributed outside of the bubble, while H2 and CO2 are mainly distributed in the center of the bubble. Meanwhile, the high S/C ratio will reduce the content of CO in the syngas, which is not conducive to the process of coal gasification. After optimization, the gas holdup in the molten pool increases to 9.429%, the turbulent kinetic energy of molten BFS rises to 12.88x10-3m2/s2, and the splashing rate of molten BFS drops to 2.024. The flow of molten BFS and the mixing degree of gas-liquid phase in the molten pool are enhanced, and the effective composition and calorific value of outlet syngas are also improved.","PeriodicalId":365707,"journal":{"name":"IEEA '18","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130361080","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The global carbon dioxide emissions gradually increase in the last few decades, among which the coal-fired power plants play magnificent role. Hence the carbon balance theory is in utilization to establish the carbon emission model for combustion and desulfurization processes. In addition, the emission intensity per fuel, per capacity and hourly emission of two super critical units is calculated to evaluate the emission performance. Then the combustion factor, fuel carbon coefficient and emission factor are introduced to specifically analyze the influence element for emission process. The results show that diesel combustion and limestone-gypsum wet desulfurization process carbon emission accounts for less than 1 percent of total emissions. Moreover, the fuel carbon coefficient has more significant effect on emission factor with unburned carbon content exceeds 1 percent. Finally, the emission intensity data is discussed in details.
{"title":"The Carbon Intensity Evaluation of Coal-fired Power Plants","authors":"Kai Wang, Shuaian Wang, Guan-hua Xiao","doi":"10.1145/3208854.3208857","DOIUrl":"https://doi.org/10.1145/3208854.3208857","url":null,"abstract":"The global carbon dioxide emissions gradually increase in the last few decades, among which the coal-fired power plants play magnificent role. Hence the carbon balance theory is in utilization to establish the carbon emission model for combustion and desulfurization processes. In addition, the emission intensity per fuel, per capacity and hourly emission of two super critical units is calculated to evaluate the emission performance. Then the combustion factor, fuel carbon coefficient and emission factor are introduced to specifically analyze the influence element for emission process. The results show that diesel combustion and limestone-gypsum wet desulfurization process carbon emission accounts for less than 1 percent of total emissions. Moreover, the fuel carbon coefficient has more significant effect on emission factor with unburned carbon content exceeds 1 percent. Finally, the emission intensity data is discussed in details.","PeriodicalId":365707,"journal":{"name":"IEEA '18","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130365830","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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