IF 9 1区工程技术

Energy Pub Date : 2024-11-12 DOI: 10.1016/j.energy.2024.133801

Quan Zhang , Bin Qin , Naijun Zhou , Jingwen Lin , Jiaxu Hao , Zhaijun Lu

{"title":"Experimental study on transient characteristics and thermal stratification of high−pressure CO2 leakage under different initial density","authors":"Quan Zhang , Bin Qin , Naijun Zhou , Jingwen Lin , Jiaxu Hao , Zhaijun Lu","doi":"10.1016/j.energy.2024.133801","DOIUrl":"10.1016/j.energy.2024.133801","url":null,"abstract":"<div><div>Accidental leakage is one of the major safety issues in the carbon capture and storage project (CCS), which may pose a significant danger to pipelines, containers and surrounding crowd. It is necessary to study the leakage behavior of high−pressure CO<sub>2</sub>, providing data support for the risk assessment of CO<sub>2</sub> leakage. In this paper, the accidental leakage of high−pressure CO<sub>2</sub> is simulated by releasing CO<sub>2</sub> from a storage tank, aiming to understand the transient characteristics and thermal stratification inside the tank of CO<sub>2</sub> leakage process. The initial CO<sub>2</sub> is at different initial density of 600∼1000 kg/m<sup>3</sup> and at almost the same initial pressure of 10.8 ± 0.4 MPa. Firstly, the outlet transient characteristics and temperature evolution inside the tank are presented. Then, the variation of <em>P−T</em> curves and phase evolution are analyzed in detail. Finally, the leakage behavior under different initial density is described. The results show that the leakage process can be clearly divided into three stages based on the outlet pressure. The outlet pressure evolution, phase evolution and temperature distribution inside the tank are very different in these three stages. This research is of great significance for leakage risk prediction, early leakage detection and leakage hazard control.</div></div>","PeriodicalId":11647,"journal":{"name":"Energy","volume":"313 ","pages":"Article 133801"},"PeriodicalIF":9.0,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142661426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Equivalent combined cycle modeling and performance optimization for a three-heat-reservoir thermal Brownian heat transformer with external heat-transfer 带外部热传递的三蓄热式布朗热变压器的等效联合循环建模与性能优化

IF 9 1区工程技术

Energy Pub Date : 2024-11-12 DOI: 10.1016/j.energy.2024.133792

Congzheng Qi , Lingen Chen , Yanlin Ge , Huijun Feng

{"title":"Equivalent combined cycle modeling and performance optimization for a three-heat-reservoir thermal Brownian heat transformer with external heat-transfer","authors":"Congzheng Qi , Lingen Chen , Yanlin Ge , Huijun Feng","doi":"10.1016/j.energy.2024.133792","DOIUrl":"10.1016/j.energy.2024.133792","url":null,"abstract":"<div><div>Three-heat-reservoir (THR) heat transformers can upgrade temperature gradient of thermal energy, and lots of instructive research has been conducted in the last decades. However, study of THR heat transformer cycle theory in micro systems remains lacking. By employing macro equivalent combined cycle method, this paper builds a finite-time thermodynamic model of THR thermal Brownian heat transformer, which is a combination of a two-reservoir thermal Brownian heat pump driven by a two-reservoir thermal Brownian engine. Expressions of performance parameters are deduced, and operating temperatures and external load ratio are determined by solving heat balance equations. Maximal heating load and corresponding coefficient of performance (COP) are given by modulating external load, heat exchanger inventory allocations and barrier height synchronously, and the optimal thermal conductance allocations and optimal working temperatures are identified. Results indicate that external thermal resistances affect heat flow transmission and the coupling of combined cycle, ultimately shaping the cycle performance. Half of the overall heat exchanger inventory should be arranged in middle heat exchanger under maximal heating load objective. Heating load exhibits an extremum with respect to COP. Equivalent combined cycle modelling is an effective and efficient method for performance optimization of THR thermal Brownian heat transformers with external heat-transfer.</div></div>","PeriodicalId":11647,"journal":{"name":"Energy","volume":"313 ","pages":"Article 133792"},"PeriodicalIF":9.0,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142661427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multiple effects of high efficiency solid inertants on fire hazard of the accumulated Mg dust layer 高效固体惰性剂对累积镁粉尘层火灾危险的多重影响

IF 9 1区工程技术

Energy Pub Date : 2024-11-12 DOI: 10.1016/j.energy.2024.133807

Fanyi Meng , Zhenmin Luo , Yingying Yu , Tao Wang , Bin Su , Chunmiao Yuan , Gang Li , Xiaochen Hou

{"title":"Multiple effects of high efficiency solid inertants on fire hazard of the accumulated Mg dust layer","authors":"Fanyi Meng , Zhenmin Luo , Yingying Yu , Tao Wang , Bin Su , Chunmiao Yuan , Gang Li , Xiaochen Hou","doi":"10.1016/j.energy.2024.133807","DOIUrl":"10.1016/j.energy.2024.133807","url":null,"abstract":"<div><div>Due to low melting and boiling points and extreme reactivity in the chemical reaction of Mg powder, inert powders that have a significant inerting effect on Mg dust clouds can cause significant combustion enhancement of the accumulated Mg dust layer. To circumvent this unforeseen fire hazard, this research selects five types of inertants that have been demonstrated to exert an inerting effect on metal dust clouds and possess a potential flame-retardant effect on Mg dust layers. This research aims to investigate the effect of inert powders on Mg dust layers to identify an efficient inerting mechanism for Mg dust layers. The results indicate that the selection of inertants for Mg dust must be based on a comprehensive evaluation of their physical and chemical properties. The presence of substances with strong decomposition and decomposition products that readily produce gases will destroy the oxide crust on the surface of the accumulated Mg dust layer, thereby causing violent gas-phase combustion. In the case of highly chemically stable substances, the melting point is of primary importance. The formation of cracks in the oxide crust is also a consequence of the higher melting point of inertants, resulting in a combustion enhancement of the mixed dust layer. Inertants with a low melting point and a high boiling point demonstrate a high degree of inerting efficiency for Mg dust layers. The melting of the inert substances forms a liquid film, which prevents the Mg powder from coming into contact with the air surrounding and within the combustion zone. The results of this research are both instructive and valuable for preventing explosions in the process industry involving metal dust materials.</div></div>","PeriodicalId":11647,"journal":{"name":"Energy","volume":"313 ","pages":"Article 133807"},"PeriodicalIF":9.0,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142661418","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nonlinear finite-set control of clean energy systems with nuclear power application 清洁能源系统的非线性有限集控制与核电应用

IF 9 1区工程技术

Energy Pub Date : 2024-11-12 DOI: 10.1016/j.energy.2024.133773

Zhe Dong, Junyi Li, Jiasen Zhang, Xiaojin Huang, Yujie Dong, Zuoyi Zhang

{"title":"Nonlinear finite-set control of clean energy systems with nuclear power application","authors":"Zhe Dong, Junyi Li, Jiasen Zhang, Xiaojin Huang, Yujie Dong, Zuoyi Zhang","doi":"10.1016/j.energy.2024.133773","DOIUrl":"10.1016/j.energy.2024.133773","url":null,"abstract":"<div><div>For clean energy systems such as wind, solar and nuclear plants, the output power is usually regulated by controlling the motion rate of actuators, e.g. the stepping motors utilized for sun tracking of solar photovoltaic panels, yaw and pitch angle positioning of wind turbines and control rod driving of nuclear reactors. By constraining the actuators' motion rates to a finite set of values, the control system of a clean energy plant can be much simplified with obvious enhancement in operation reliability but requires developing finite-set control methods correspondingly. Motivated by the benefit of adopting finite motion rates, a finite-set control method is newly proposed for the nonlinear systems describing the dynamics of clean energy plants, compensating for the quantization and saturation effects induced by adopting a finite set of motion rates while ensuring globally bounded closed-loop stability strictly under a sufficient condition. The method is applied to design a finite-set power-level control of modular high temperature reactors, demonstrating stable power-level control during a reactor ramping-down from 100 % to 50 % reactor full power (RFP) with a constant rate of 5 % RFP/min. The simulation results also indicate that under the regulation of the finite-set control law, the steady error of hot helium temperature can eliminated, and the overshoot of neutron flux and that of hot helium temperature can be reduced by approximately 66 % and 75 % through properly adjusting control parameters, providing practical insights for engineering applications.</div></div>","PeriodicalId":11647,"journal":{"name":"Energy","volume":"313 ","pages":"Article 133773"},"PeriodicalIF":9.0,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142661423","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Decarbonizing and offsetting emissions in the airline industry: Current perspectives and strategies 航空业的去碳化和抵消排放：当前的观点和战略

IF 9 1区工程技术

Energy Pub Date : 2024-11-12 DOI: 10.1016/j.energy.2024.133809

Fadhli Wong Mohd Hasan Wong , Dlzar Al Kez , Dylan Furszyfer Del Rio , Aoife Foley , David Rooney , Mahpuzah Abai

{"title":"Decarbonizing and offsetting emissions in the airline industry: Current perspectives and strategies","authors":"Fadhli Wong Mohd Hasan Wong , Dlzar Al Kez , Dylan Furszyfer Del Rio , Aoife Foley , David Rooney , Mahpuzah Abai","doi":"10.1016/j.energy.2024.133809","DOIUrl":"10.1016/j.energy.2024.133809","url":null,"abstract":"<div><div>The Sixth Intergovernmental Panel on Climate Change Assessment Report underscores incremental progress in climate mitigation policies since 2014. Despite these efforts, the report indicates that global temperatures are likely to surpass the critical 1.5 °C threshold within the 21st century. In this context, the aviation industry, responsible for 2.8 % of global carbon dioxide emissions, faces challenges in meeting its net-zero emissions target by 2050. Through a mixed methods approach that includes expert interviews with 12 executive staff from airlines and airports and a targeted literature review, our research provides original data on means and challenges to decarbonize the aviation industry in the SEAO region. The findings reveal that significant hurdles persist while the aviation sector is actively pursuing decarbonization strategies, such as enhancing operational efficiency, adopting effective carbon offsetting measures, and transitioning to sustainable aviation fuels. Notably, using sustainable aviation fuels holds promise, potentially reducing carbon emissions by up to 70 %. However, its current contribution to total consumed jet fuel remains below 1 %. The industry is taking steps to address this by optimizing flight paths, schedules, and making strategic investments to decrease the costs associated with sustainable aviation fuels. Our qualitative data also underscores the influence of external factors, including investor pressure, national and international regulations, and a growing demand from environmentally conscious travellers for cleaner transport alternatives. Failure from airline industries to adopt more sustainable and efficient practices could lead to increased operating costs and revenue loss as corporate clients and customers increasingly seek greener transportation options.</div></div>","PeriodicalId":11647,"journal":{"name":"Energy","volume":"313 ","pages":"Article 133809"},"PeriodicalIF":9.0,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142661719","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design of high-performance binary carbonate/hydroxide Ni-based supercapacitors for photo-storage systems 设计用于光存储系统的高性能二元碳酸盐/氢氧化物镍基超级电容器

IF 9 1区工程技术

Energy Pub Date : 2024-11-11 DOI: 10.1016/j.energy.2024.133593

Damin Lee , Nilanka M. Keppetipola , Dong Hwan Kim , Jong Wook Roh , Ludmila Cojocaru , Thierry Toupance , Jeongmin Kim

{"title":"Design of high-performance binary carbonate/hydroxide Ni-based supercapacitors for photo-storage systems","authors":"Damin Lee , Nilanka M. Keppetipola , Dong Hwan Kim , Jong Wook Roh , Ludmila Cojocaru , Thierry Toupance , Jeongmin Kim","doi":"10.1016/j.energy.2024.133593","DOIUrl":"10.1016/j.energy.2024.133593","url":null,"abstract":"<div><div>Silicon solar cells were used to convert solar energy into electrical energy, and a supercapacitor was designed to store this energy. To maximize the surface area of the electrodes, a three-dimensional Ni foam substrate was employed, onto which Ni-based compounds were deposited to enhance the electrochemical performance of the electrodes. Specifically, to address the conductivity reduction problem that arises when using only Ni ions, we introduced transition metal ions such as Mn, Co, Cu, Fe, and Zn to create binary compounds as electrode material. These binary metal compounds provided high electronic conductivity, structural stability, and reversible capacity, thereby optimizing the performance of the supercapacitor. As a result, the optimized NiCo(CO<sub>3</sub>)(OH)<sub>2</sub> electrode demonstrated high capacity and excellent cycle stability, exhibiting an energy density of 35.5 Wh kg<sup>−1</sup> and a power density of 2555.6 W kg<sup>−1</sup> as an asymmetric supercapacitor device. Furthermore, when this device was combined directly with silicon solar cells, it achieved a storage efficiency of 63 % and an overall efficiency of 5.17 % under an illumination intensity of 10 mW cm<sup>−2</sup>. These findings suggest the potential for commercializing high-performance self-charging energy storage devices and contribute significantly to the advancement of energy storage technology.</div></div>","PeriodicalId":11647,"journal":{"name":"Energy","volume":"313 ","pages":"Article 133593"},"PeriodicalIF":9.0,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142661430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigating the impacts of the Dual Carbon Targets on energy and carbon flows in China 调查 "双碳目标 "对中国能源和碳流动的影响

IF 9 1区工程技术

Energy Pub Date : 2024-11-10 DOI: 10.1016/j.energy.2024.133778

Peng-Tao Wang , Qing-Chuang Xu , Fei-Yin Wang , Mao Xu

{"title":"Investigating the impacts of the Dual Carbon Targets on energy and carbon flows in China","authors":"Peng-Tao Wang , Qing-Chuang Xu , Fei-Yin Wang , Mao Xu","doi":"10.1016/j.energy.2024.133778","DOIUrl":"10.1016/j.energy.2024.133778","url":null,"abstract":"<div><div>As the world's largest carbon emitter, China has committed to ambitious “Dual Carbon Targets” to address climate change. To investigate the impact of the Dual Carbon Targets on energy consumption and carbon dioxide (CO<sub>2</sub>) emissions, CO<sub>2</sub> emissions were calculated, and Sankey diagrams of energy and CO<sub>2</sub> flows for 2018–2022 were drawn based on the latest energy statistics. This study finds that China's primary energy supply was 5.429 Gtce, with terminal energy consumption at 3.801 Gtce in 2022. CO<sub>2</sub> emissions reached 12.01 Gt, marking a 12.24 % increase since 2018. Emission intensity varies regionally, being higher in the north and lower in the south, with a national average of 0.1 kg/CNY. Coal continues to dominate energy consumption at 64 %, though its share of emissions is declining, particularly in transportation and residential sectors. By 2060, electricity is expected to become the primary energy source, significantly lowering carbon emissions, with Carbon Capture, Utilization, and Storage technologies playing a crucial role in achieving the targets. This analysis provides critical insights into China's transition to a low-carbon economy, serving as a valuable resource for policymakers to optimize the energy structure and meet environmental goals.</div></div>","PeriodicalId":11647,"journal":{"name":"Energy","volume":"313 ","pages":"Article 133778"},"PeriodicalIF":9.0,"publicationDate":"2024-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142661432","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Thermal performance analysis of a Trombe wall with the multi-row channel PCM wallboard 使用多排通道 PCM 壁板的 Trombe 墙的热性能分析

IF 9 1区工程技术

Energy Pub Date : 2024-11-10 DOI: 10.1016/j.energy.2024.133796

Yazi Li , Yonggang Lei , Yao Yan , Chongfang Song

{"title":"Thermal performance analysis of a Trombe wall with the multi-row channel PCM wallboard","authors":"Yazi Li , Yonggang Lei , Yao Yan , Chongfang Song","doi":"10.1016/j.energy.2024.133796","DOIUrl":"10.1016/j.energy.2024.133796","url":null,"abstract":"<div><div>A novel Trombe wall with the multi-row channel phase change material wallboard (MCPCM-TW) is proposed to enhance the solar energy utilization. The structure contains the glazing, the heat-absorbing layer and the phase change thermal storage layer with several built-in channels, either aligned vertically or horizontally. The thermal performance of the Trombe walls, which consist of the multi-row vertical channel phase change material wallboard (V-MCPCM-TW) and the multi-row horizontal channel phase change material wallboard (H-MCPCM-TW), were investigated numerically in the present research. Meanwhile, the Trombe wall incorporating phase change thermal storage layer without built-in channels also studied in the paper. The results indicate that, the multi-row channel phase change material wallboard effectively enhances the heat storage and release of the phase change thermal storage layer, thereby extending the duration of ventilation and increasing the cumulative heat supply of the rooms equipped with the novel Trombe wall. Specifically, the V-MCPCM-TW has a higher maximum liquid volume fraction during the heat storage. Compared with the Trombe wall incorporating phase change thermal storage layer without built-in channels, the V-MCPCM-TW has a 16 % increase in maximum liquid volume fraction and a 15.5 % increase in cumulative heat supply within a certain period.</div></div>","PeriodicalId":11647,"journal":{"name":"Energy","volume":"313 ","pages":"Article 133796"},"PeriodicalIF":9.0,"publicationDate":"2024-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142661425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Thermal decomposition and shock response mechanism of DNTF: Deep potential molecular dynamics simulations DNTF 的热分解和冲击响应机制：深电位分子动力学模拟

IF 9 1区工程技术

Energy Pub Date : 2024-11-10 DOI: 10.1016/j.energy.2024.133799

Jun Jiang , Yin Yu , Zheng Mei , Zhen-Xin Yi , Xue-Hai Ju

{"title":"Thermal decomposition and shock response mechanism of DNTF: Deep potential molecular dynamics simulations","authors":"Jun Jiang , Yin Yu , Zheng Mei , Zhen-Xin Yi , Xue-Hai Ju","doi":"10.1016/j.energy.2024.133799","DOIUrl":"10.1016/j.energy.2024.133799","url":null,"abstract":"<div><div>A neural network deep potential (DP) is developed for the shock response and thermal decomposition mechanisms of 3,4-Bis(3-nitrofurazan-4-yl)furoxan (DNTF). This DP potential, trained on <em>ab initio</em> datasets, achieves the accuracy of density functional theory (DFT) and higher computational efficiency. The simulation results show that DNTF is anisotropic under shock loading. And the critical shock decomposition temperatures along the [100], [010], and [001] directions are 463.64 K, 451.85 K, and 486.69 K, respectively. For the first time, the low-temperature (<750 K) decomposition of DNTF is successfully simulated using molecular dynamics combined with DP model. The decomposition of DNTF begins with the O-N bond opening of the furoxan ring, followed by the breaking of the C-NO<sub>2</sub> bond and opening of the furazan rings, under thermal conditions. The critical thermal decomposition is between 458.3 K and 562.5 K at a heating rate of 13.5 K/ps. The final products are CO<sub>2</sub>, N<sub>2</sub>, and CO, and the main intermediates are NO<sub>2</sub>, NO, and N<sub>2</sub>O. The activation energy of decomposition is 142.4 kJ/mol obtained by Ozawa method. This study not only provides a powerful tool for investigating the performance of DNTF but also offers a feasible approach for other energetic materials, advancing the field significantly.</div></div>","PeriodicalId":11647,"journal":{"name":"Energy","volume":"313 ","pages":"Article 133799"},"PeriodicalIF":9.0,"publicationDate":"2024-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142661435","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigation of oil-based CO2 foam EOR and carbon mitigation in a 2D visualization physical model: Effects of different injection strategies 二维可视化物理模型中的油基二氧化碳泡沫 EOR 和碳减排研究：不同注入策略的影响

IF 9 1区工程技术

Energy Pub Date : 2024-11-10 DOI: 10.1016/j.energy.2024.133800

Zhoujie Wang , Songyan Li , Yaohui Wei , Faqiang Dang , Minghe Li

{"title":"Investigation of oil-based CO2 foam EOR and carbon mitigation in a 2D visualization physical model: Effects of different injection strategies","authors":"Zhoujie Wang , Songyan Li , Yaohui Wei , Faqiang Dang , Minghe Li","doi":"10.1016/j.energy.2024.133800","DOIUrl":"10.1016/j.energy.2024.133800","url":null,"abstract":"<div><div>CO<sub>2</sub> flooding in low-permeability and tight oil reservoirs often encounters gas channeling, which affects oil recovery. To address this, oil-based CO<sub>2</sub> foam development is explored using a two-dimensional visual physical model. The study includes three experimental setups: CO<sub>2</sub> flooding followed by oil-based CO<sub>2</sub> foam flooding, CO<sub>2</sub> Huff-n-Puff (HnP) followed by oil-based CO<sub>2</sub> foam HnP, and oil-based CO<sub>2</sub> foam HnP followed by oil-based CO<sub>2</sub> foam flooding. Findings reveal that using oil-based CO<sub>2</sub> foam after CO<sub>2</sub> development increases recovery factors by 15.62 % and 35.86 % for HnP and flooding, respectively, and significantly boosts CO<sub>2</sub> storage. The CO<sub>2</sub> storage is 1.96 times and 6.03 times higher than the initial one. After oil-based CO<sub>2</sub> foam is used, the red area near the outlet of the visualization model becomes shallower, indicating a further decrease in residual oil saturation. The oil-based CO<sub>2</sub> foam method reduces residual oil saturation and extends production duration while decreasing gas production rates. This approach effectively plugs gas channels, enhancing CO<sub>2</sub> sweep efficiency, crude oil mobility, and recovery. The results provide innovative strategies for oilfield development, supporting carbon sequestration and offering substantial economic and environmental benefits.</div></div>","PeriodicalId":11647,"journal":{"name":"Energy","volume":"313 ","pages":"Article 133800"},"PeriodicalIF":9.0,"publicationDate":"2024-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142661433","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Energy最新文献