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A Comprehensive Review of Sustainable Geopolymer Concrete Using Palm Oil Clinker: Environmental and Engineering Aspects
IF 3.5 3区 工程技术
Energy Science & Engineering Pub Date : 2025-02-09 DOI: 10.1002/ese3.1977
Khamees N. Abdulhaleem, Hussein M. Hamada, Ahmed I. Osman, Salim T. Yousif, Ali M. Humada, Ali Majdi
{"title":"A Comprehensive Review of Sustainable Geopolymer Concrete Using Palm Oil Clinker: Environmental and Engineering Aspects","authors":"Khamees N. Abdulhaleem,&nbsp;Hussein M. Hamada,&nbsp;Ahmed I. Osman,&nbsp;Salim T. Yousif,&nbsp;Ali M. Humada,&nbsp;Ali Majdi","doi":"10.1002/ese3.1977","DOIUrl":"https://doi.org/10.1002/ese3.1977","url":null,"abstract":"<p>Amidst the dual challenges of aggregate scarcity and the environmental impact of carbon dioxide (CO<sub>2</sub>) emissions from cement production, this study investigates the viability of palm oil clinker (POC) as a sustainable aggregate in geopolymer concrete (GPC). The lack of appropriate alternative coarse and fine aggregates essential in concrete production is one of the critical issues faced by the construction industry. This review evaluates its environmental benefits, chemical and physical attributes, and influence on GPC's microstructure. Previous studies have shown that incorporating POC in GPC significantly reduces density from 2345 to 1821 kg/m<sup>3</sup> while maintaining competitive compressive strength, thus proving its applicability in various structural and nonstructural contexts. Moreover, GPC with POC demonstrates enhanced resistance to aggressive environmental conditions such as water absorption and resistance against acid and sulfate environments. Geopolymer mortar (GPM) exposed to sulfate attack recorded the lowest decrease in strength than GPM containing POC fine aggregates by about 20%. The use of 100% POC aggregates in GPC mix has a 3.2% water absorption, which is lower than the limit for high-performance concrete. The results advocate for the development of POC-aggregate GPC as an environmentally friendly construction material, contributing to the sustainable advancement of the building industry.</p>","PeriodicalId":11673,"journal":{"name":"Energy Science & Engineering","volume":"13 3","pages":"958-979"},"PeriodicalIF":3.5,"publicationDate":"2025-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ese3.1977","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143602485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
A Comprehensive Review of Thermal Management Methods and Ideal System Design for Improved Electric Vehicle Battery Pack Performance and Safety
IF 3.5 3区 工程技术
Energy Science & Engineering Pub Date : 2025-02-09 DOI: 10.1002/ese3.2081
M. Murugan, P. V. Elumalai, KCK Vijayakumar, M. Babu, K. Suresh Kumar, M. Ganesh, Liu Kuang, S. Prabhakar
{"title":"A Comprehensive Review of Thermal Management Methods and Ideal System Design for Improved Electric Vehicle Battery Pack Performance and Safety","authors":"M. Murugan,&nbsp;P. V. Elumalai,&nbsp;KCK Vijayakumar,&nbsp;M. Babu,&nbsp;K. Suresh Kumar,&nbsp;M. Ganesh,&nbsp;Liu Kuang,&nbsp;S. Prabhakar","doi":"10.1002/ese3.2081","DOIUrl":"https://doi.org/10.1002/ese3.2081","url":null,"abstract":"<p>The scientific aim of the study is to propose a comprehensive review of thermal management systems (TMSs) used in electric vehicle (EV) battery packs on matters pertaining to performance enhancement, improvements in safety, and reliability. This includes the various thermal management strategies, addressing some of the problems posed by the dynamic nature of operating conditions, and evaluating emerging TMS technologies. From this aspect, the problem of this research focused on the description of a detailed insight into the efficiencies of TMSs inside an EV, pointing to the impacts of various cooling mechanisms, mostly liquid cooling, air cooling, and phase-change materials. The research study further evaluates the integration of TMS in vehicle design and its effects on battery lifespan, charging speeds, and environmental impacts. The benefits, disadvantages, and specific applications of each method are discussed about EVs. Taking into consideration the fast charging, high-power, and environmental effects, further discussion is made on the specific challenges that come with dynamic operating conditions of EVs. This is shown through the industry's constant pursuit to develop in this critical area through the discovery of novel technologies, including predictive control algorithms and superior thermal materials. It discusses in depth how heat management is integrated into the general vehicle design and how this impacts battery lifespan, charging speed, and range. In conclusion, it is a source of material for research scholars, engineers, and policymakers in charge of developing EVs by synthesizing what already exists, highlighting trends at current times, and outlining possible future directions in the continuum of optimizing TMS for the next generation of driving automobile transportation batteries.</p>","PeriodicalId":11673,"journal":{"name":"Energy Science & Engineering","volume":"13 3","pages":"1011-1036"},"PeriodicalIF":3.5,"publicationDate":"2025-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ese3.2081","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143602487","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
The Role and Impact of Al2O3 Additive on the Performance of the Diesel Engine Operated by JFO Along With Its Measures of Combustion and Emissions
IF 3.5 3区 工程技术
Energy Science & Engineering Pub Date : 2025-02-09 DOI: 10.1002/ese3.2064
R. Sabarish, S. Jenoris Muthiya, B. Anandan, D. Sathis Kumar, B. Manideep, Prabhakar Sekar, P. V. Elumalai
{"title":"The Role and Impact of Al2O3 Additive on the Performance of the Diesel Engine Operated by JFO Along With Its Measures of Combustion and Emissions","authors":"R. Sabarish,&nbsp;S. Jenoris Muthiya,&nbsp;B. Anandan,&nbsp;D. Sathis Kumar,&nbsp;B. Manideep,&nbsp;Prabhakar Sekar,&nbsp;P. V. Elumalai","doi":"10.1002/ese3.2064","DOIUrl":"https://doi.org/10.1002/ese3.2064","url":null,"abstract":"<p>The world's biggest problems are global warming and fossil fuel depletion. Most fast-developing countries are facing problems. Most engines that burn crude oil–based products discharge smoke, carbon monoxide, nitric oxide, unburnt hydrocarbon, and lower-concentration particulate matter into the environment. In this study, good planning and emissions rules are reducing crude oil use. Juliflora oil biodiesel is derived from Juliflora seeds and tested in a single-cylinder direct injection diesel engine. If you use biodiesel in your engine without changes, you may encounter gum formation in the cylinder, knocking, and carbon deposits. The blends approach is one of many techniques to change biodiesel's attributes, but our present intention is to employ it. B20 blend outperforms the other sample fuels and is closest to diesel. The produced aluminum oxide was tested for parameters using X-ray diffractometer and scanning electron microscope. Aluminum oxide was blended with biodiesel using an ultrasonicated to mix 25, 50, and 75 parts per million (PPM) aluminum oxides, designated B20AO25 PPM, B20AO50 PPM, and B20AO75 PPM. For typical engine running and optimal engine operating parameters, biodiesel with aluminum oxide nanoadditives was investigated. Optimized characteristics are 80% diesel and 20% Juliflora seed oil with 75 PPM aluminum oxide nanoadditives (B20AO75 PPM) at 200 bar injection pressure and 21° before top dead center injection time.</p>","PeriodicalId":11673,"journal":{"name":"Energy Science & Engineering","volume":"13 3","pages":"995-1010"},"PeriodicalIF":3.5,"publicationDate":"2025-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ese3.2064","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143602486","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
A New Comprehensive Model to Simulate and Optimize Fluid Flow in Complex Well-Formation System for In Situ Leaching Uranium
IF 3.5 3区 工程技术
Energy Science & Engineering Pub Date : 2025-02-09 DOI: 10.1002/ese3.2044
Zhaokun Li, Xuebin Su, Yangquan Jiao, Yu Zhang, Yang Qiu, Xiaodong Hu
{"title":"A New Comprehensive Model to Simulate and Optimize Fluid Flow in Complex Well-Formation System for In Situ Leaching Uranium","authors":"Zhaokun Li,&nbsp;Xuebin Su,&nbsp;Yangquan Jiao,&nbsp;Yu Zhang,&nbsp;Yang Qiu,&nbsp;Xiaodong Hu","doi":"10.1002/ese3.2044","DOIUrl":"https://doi.org/10.1002/ese3.2044","url":null,"abstract":"<p>In situ leaching (ISL) is an important method for green and efficient development of sandstone-type uranium ore. It achieves ISL of uranium through the deployment of injection and extraction vertical well patterns. The optimization of parameter matching between injection and extraction wells is key to improving the efficiency of uranium development. However, as the depth of mining and the scale of development increase, the small area controlled by vertical wells leads to a large number of vertical wells and high drilling costs, which severely affect the benefits of mine development. In this paper, taking the development case of the LK mine area in Xinjiang as an example, an extraction method of “horizontal well injection–vertical well extraction” was innovatively proposed for the first time. By using the well-storage coupling model and particle tracking technology, this study systematically investigated the impact of well types and injection–extraction parameters on the leaching range and the distribution of leaching dead zones. Furthermore, a hybrid multiobjective optimization algorithm was used to complete the parameter optimization of well-storage coupling for ISL of uranium. The research content of this paper explores the impact of injection–extraction parameters and well spacing on the leaching effect of “horizontal well injection–vertical well extraction,” providing a method and approach for the optimization study of ISL uranium parameters. In addition, the research results of this paper have certain guiding significance for enhancing the leaching and extraction effect of the existing uranium mining plan in the LK mining area.</p>","PeriodicalId":11673,"journal":{"name":"Energy Science & Engineering","volume":"13 3","pages":"1089-1102"},"PeriodicalIF":3.5,"publicationDate":"2025-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ese3.2044","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143602488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Effect of Wall, Roof, and Window-to-Wall Ratio on the Cooling and Heating Load of a Building in India
IF 3.5 3区 工程技术
Energy Science & Engineering Pub Date : 2025-02-07 DOI: 10.1002/ese3.2066
Asim Ahmad, Om Prakash, L. S. Brar, Kashif Irshad, S. M. Mozammil Hasnain, Prabhu Paramasivam, Abinet Gosaye Ayanie
{"title":"Effect of Wall, Roof, and Window-to-Wall Ratio on the Cooling and Heating Load of a Building in India","authors":"Asim Ahmad,&nbsp;Om Prakash,&nbsp;L. S. Brar,&nbsp;Kashif Irshad,&nbsp;S. M. Mozammil Hasnain,&nbsp;Prabhu Paramasivam,&nbsp;Abinet Gosaye Ayanie","doi":"10.1002/ese3.2066","DOIUrl":"https://doi.org/10.1002/ese3.2066","url":null,"abstract":"<p>This study examines the impact of various combinations of walls, roofs, and window-to-wall ratios (WWRs) on the cooling and heating loads of residential buildings in India's composite climatic zone. Utilizing EnergyPlus and eQuest simulations, the thermal performance of three building types is analyzed across 32 cases involving two types of walls (W1, W2), roofs (R1, R2), and WWRs of 10%, 20%, 30%, and 40%. The results indicate that Case 29 (W2 R2 N2 WWR1), characterized by a north-facing orientation, square-shaped design, and a 10% WWR, achieves the lowest cooling and heating loads among all configurations. Specifically, in Building 1, this configuration reduces cooling loads by 26.0% (from 204 to 151 kBTU/h) and heating loads by 28.6% (from 224 to 160 kBTU/h) compared to the highest load scenario, Case 4 (W1 R1 N1 WWR4, west-facing orientation, square-shaped design, and 40% WWR). Similar trends are observed for Buildings 2 and 3. These findings underscore the critical role of optimizing building envelope parameters, particularly orientation, shape, and WWR, in achieving significant energy savings. The insights provided by this study can aid architects, engineers, and policymakers in designing energy-efficient residential buildings.</p>","PeriodicalId":11673,"journal":{"name":"Energy Science & Engineering","volume":"13 3","pages":"1255-1279"},"PeriodicalIF":3.5,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ese3.2066","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143602663","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Performance Analysis of Binary and Ternary Blends of Ammonia, Hydrogen, and Diesel in Compression Ignition Engine
IF 3.5 3区 工程技术
Energy Science & Engineering Pub Date : 2025-02-06 DOI: 10.1002/ese3.2008
Laveet Kumar, Ahmad K. Sleiti
{"title":"Performance Analysis of Binary and Ternary Blends of Ammonia, Hydrogen, and Diesel in Compression Ignition Engine","authors":"Laveet Kumar,&nbsp;Ahmad K. Sleiti","doi":"10.1002/ese3.2008","DOIUrl":"https://doi.org/10.1002/ese3.2008","url":null,"abstract":"<p>Compression ignition (CI) engines have caused a surge in carbon dioxide (CO<sub>2</sub>) and nitrogen oxides (NOx) emissions. Therefore, binary blends of hydrogen (H<sub>2</sub>) and diesel in different ratios are predominantly focused in literature to mitigate these emissions. Extensive research has been carried out using binary blends of H<sub>2</sub> and diesel, but still, there is a lack of research on performance analysis of binary and ternary blends of ammonia (NH<sub>3</sub>), H<sub>2,</sub> and diesel in CI engines. Therefore, this research article examines various blends to determine various key performance parameters such as brake thermal efficiency (BTE), brake mean effective pressure (BMEP), brake torque, brake-specific fuel consumption (BSFC), and NOx emissions with and without exhaust gas recirculation (EGR). This research introduces a model of a single-cylinder CI engine developed within the Ricardo wave program, which was simulated across a range of ratios for binary and ternary blends. The simulations were conducted at a compression ratio of 21 and engine speed from 500 to 3000 rpm. Validation of the developed model is carried out against experimental data reported in the literature, and the absolute error was less than 5%, which validates the accuracy of the developed model. Results show that the BTE increases rapidly from 28% to 38% for the investigated binary blends (with 10% NH<sub>3</sub> to 90%) and 25% to 40% for the investigated ternary blended fuels at engine load from 500 to 2000 rpm, respectively. The maximum efficiency is observed in the case of 50% diesel and 50% NH<sub>3</sub> (D50A50) for the binary blends and 50% diesel, 25% NH<sub>3</sub> and 25% H<sub>2</sub> (D50A25H25) for the ternary blends. However, D50A50 and D50A25H25 exhibit 20% and 30% increased levels of NOx compared to diesel, respectively, particularly at higher engine speeds. However, when EGR is implemented at 25%, there is a substantial reduction in NO<sub>x</sub> concentration.</p>","PeriodicalId":11673,"journal":{"name":"Energy Science & Engineering","volume":"13 3","pages":"1079-1088"},"PeriodicalIF":3.5,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ese3.2008","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143602655","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Numerical Study of Hydrate Dissociation and Heat Stimulation by Hot Water Injection in Gas Hydrate Reservoirs 气水合物储层中水合物解离和热水注入热刺激的数值研究
IF 3.5 3区 工程技术
Energy Science & Engineering Pub Date : 2025-02-04 DOI: 10.1002/ese3.1990
Kaixiang Shen, Yingsheng Wang, Xiangyang Yan, Jiawei Zhou, Kewei Zhang, Youshi Jiang
{"title":"Numerical Study of Hydrate Dissociation and Heat Stimulation by Hot Water Injection in Gas Hydrate Reservoirs","authors":"Kaixiang Shen,&nbsp;Yingsheng Wang,&nbsp;Xiangyang Yan,&nbsp;Jiawei Zhou,&nbsp;Kewei Zhang,&nbsp;Youshi Jiang","doi":"10.1002/ese3.1990","DOIUrl":"https://doi.org/10.1002/ese3.1990","url":null,"abstract":"<p>Hot water injection has been a simple and promising method of thermally stimulating the extraction of hydrates, which promotes the dissociation of natural gas hydrates and improves gas production. However, the temperature region influenced by injecting hot water requires further research and evaluation. In this study, a computational model of the temperature field in the hydrate reservoir during hot water injection with the finite volume method, considering coupled gas–liquid two-phase flow, heat conduction, and hydrate dissociation, was developed. The model focuses on hot water injection vertical wells completed with slotted liners in the Shenhu Sea area hydrate reservoir, which can consider the heterogeneity of porosity, permeability, and saturation. It also analyzes the effects of injection volume, injection rate, hot water temperature, and other factors on the variations in temperature and pressure distribution. The results indicate that selecting the appropriate injection volume, the temperature of hot water, and the injection rate can promote hydrate decomposition and expand the range of heat stimulation reservoir temperature. Reservoir heterogeneity leads to heterogeneity of the hydrate dissociation front and temperature influence range, and the influence range of heat stimulation is larger than homogeneous reservoir.</p>","PeriodicalId":11673,"journal":{"name":"Energy Science & Engineering","volume":"13 2","pages":"551-561"},"PeriodicalIF":3.5,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ese3.1990","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143438893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Study on the Influence of Complicated Geological Condition Permeability in Coal Reservoirs on Horizontal Well Drainage and Production
IF 3.5 3区 工程技术
Energy Science & Engineering Pub Date : 2025-01-30 DOI: 10.1002/ese3.2080
Bing Qin, Qifu Wei, Wenjing Duan, Zhanshan Shi, Jianfeng Hao, Bing Liang, Weiji Sun
{"title":"Study on the Influence of Complicated Geological Condition Permeability in Coal Reservoirs on Horizontal Well Drainage and Production","authors":"Bing Qin,&nbsp;Qifu Wei,&nbsp;Wenjing Duan,&nbsp;Zhanshan Shi,&nbsp;Jianfeng Hao,&nbsp;Bing Liang,&nbsp;Weiji Sun","doi":"10.1002/ese3.2080","DOIUrl":"https://doi.org/10.1002/ese3.2080","url":null,"abstract":"<p>Based on the engineering background of coalbed methane block in Liujia District of Fuxin with complex geological conditions, a seepage mathematical model considering the dynamic changes of porosity and permeability of coal reservoir caused by coal matrix shrinkage under the conditions of gas adsorption, desorption, and stress change is established. A geological model of heterogeneous coalbed methane reservoir is established, which includes igneous rock and fault geological structure. The influence of permeability on coalbed methane productivity and reservoir pressure under complex geological conditions is studied by numerical simulation. The results show that the permeability of coal seam is an important factor affecting the yield of coalbed methane. The higher the permeability, the faster the output rate of coalbed methane, the higher the output, the faster the pressure drop of coal reservoir, and the faster the desorption rate of coalbed methane. Under the premise that the horizontal wellbore is perpendicular to the maximum permeability direction of the coal seam, the productivity of the well arrangement method is higher than that of the parallel maximum permeability direction. However, the length of the horizontal well in the Liujia block is limited by the dense igneous rock distribution, and the desorption area of the coalbed methane is reduced and the production is reduced when the vertical arrangement is arranged. Therefore, the horizontal wells in the Liujia block should be parallel to the maximum permeability direction and set along the direction of igneous rock. The greater the vertical permeability of the coal seam, the faster the reservoir pressure decreases, and the better the horizontal well productivity.</p>","PeriodicalId":11673,"journal":{"name":"Energy Science & Engineering","volume":"13 3","pages":"1414-1424"},"PeriodicalIF":3.5,"publicationDate":"2025-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ese3.2080","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143602594","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Study on the Influence of Heat Exchange of Static Drill Rooted Energy Pile on the Consolidation of Coastal Soft Soil Site
IF 3.5 3区 工程技术
Energy Science & Engineering Pub Date : 2025-01-29 DOI: 10.1002/ese3.2016
Shuaijiong Chen, Yuebao Deng, Shuai Niu, Rihong Zhang, Wei Ming, Yanming Yao
{"title":"Study on the Influence of Heat Exchange of Static Drill Rooted Energy Pile on the Consolidation of Coastal Soft Soil Site","authors":"Shuaijiong Chen,&nbsp;Yuebao Deng,&nbsp;Shuai Niu,&nbsp;Rihong Zhang,&nbsp;Wei Ming,&nbsp;Yanming Yao","doi":"10.1002/ese3.2016","DOIUrl":"https://doi.org/10.1002/ese3.2016","url":null,"abstract":"<p>The use of static drill-rooted energy piles in deep soft soil foundations causes thermal exchange between the piles and the surrounding soil, resulting in excess pore pressure and consolidation settlement in the soft soil layer around the piles, which affects the long-term deformation of the site. To investigate the impact of the operation of this novel energy pile on the consolidation of the soil around the pile, a simulation analysis was conducted using the ABAQUS software to assess the soil temperature, pore pressure, and consolidation settlement around the static drill rooted energy pile group under a 120-day heating and cooling cycle. The research findings indicated that the temperature change decreased as the distance between the soil and the pile increased, resulting in less thermal consolidation settlement and pore pressure variations. Heating conditions (Δ<i>T</i> = 18.7°C) resulted in a 17°C increase in the soil temperature below the center of the pile group, with temperature changes becoming negligible beyond 8<i>D</i>. The maximum pore pressure variations in the soil occurred at 2<i>D</i> and 6<i>D</i> distances from the pile, with values of 1.24 and 1.12 kPa, respectively. Under heating conditions, the surface settlement at a 2<i>D</i> distance from the pile group was 6.19 mm, which increased to about 10 mm under heating–cooling cycles. These research findings provide a foundation for analyzing the environmental impact of novel energy piles in coastal areas.</p>","PeriodicalId":11673,"journal":{"name":"Energy Science & Engineering","volume":"13 2","pages":"598-610"},"PeriodicalIF":3.5,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ese3.2016","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143439033","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Sustained Casing Pressure Assessment Based on Gas Leakage Rate by the State of Equation for Real Gas
IF 3.5 3区 工程技术
Energy Science & Engineering Pub Date : 2025-01-29 DOI: 10.1002/ese3.2076
Jieli Wang, Xuelin Dong, Deli Gao
{"title":"Sustained Casing Pressure Assessment Based on Gas Leakage Rate by the State of Equation for Real Gas","authors":"Jieli Wang,&nbsp;Xuelin Dong,&nbsp;Deli Gao","doi":"10.1002/ese3.2076","DOIUrl":"https://doi.org/10.1002/ese3.2076","url":null,"abstract":"<p>Gas leakage is one of the most concerning issues in wells for exploring conventional or unconventional oil and gas reservoirs, carbon sequestration, and geothermal energy. Wellbore barriers, such as tubing, casing, and cement, are the primary components that prevent the undesirable flow of subsurface fluids. However, due to the complexity of the operating condition in a harsh environment, the tubing integrity is prone to failure, causing gas leakage and forming a sustained casing pressure (SCP) at the wellhead. This work proposes a prediction model considering the real gas effect when evaluating SCP. The proposed model involves gas flow, leakage, and accumulation in the wellbore. With the pressure and temperature obtained by the flow equations as boundaries, the model estimates the gas flow rate at the leakage point and SCP. Subsequently, comparing the current leakage model with the conventional method demonstrates the model's performance. Finally, the current model is applied to an ultra-deep well to determine the leakage location by inversion. Further sensitivity studies reveal the influences of wellbore conditions on SCP, including the production rate, depth of liquid level, and annular fluid density. The study indicates that the traditional method based on ideal gas underestimates the mass flow rate by approximately 22% compared to the current model. When the adiabatic index of the conventional method is approximated as the isentropic coefficient, the mass flow rate may agree well with the current model. It is acceptable to predict the leakage flow rate by assuming that the production gas is pure methane and ignoring the influence of gas composition. The leakage position is the most influential factor for SCP. These results would help engineers predict SCP and determine the leakage location in wells.</p>","PeriodicalId":11673,"journal":{"name":"Energy Science & Engineering","volume":"13 3","pages":"1425-1438"},"PeriodicalIF":3.5,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ese3.2076","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143602854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
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