Energy Science & Engineering最新文献

{"title":"Experimental Modeling of Wind Resources for Electricity Generation in the Ningo-Prampram Region of Ghana","authors":"Johannes Ami,&nbsp;Ato Fanyin-Martin,&nbsp;John Stephen Asamoah,&nbsp;Nana Yaw Asiedu,&nbsp;Bright Amponsem,&nbsp;Matthew Kwofie","doi":"10.1002/ese3.2079","DOIUrl":"https://doi.org/10.1002/ese3.2079","url":null,"abstract":"<p>Wind energy, as a renewable energy source, plays a critical role in achieving the world's energy transition goals. This study assesses the wind resource characteristics and potential for wind power production in the Ningo-Prampram District of Ghana. On-site wind measurements were conducted using an air flow anemometer at various reference points within the study area. The collected site data were statistically validated against existing satellite data using <i>T</i>-test analysis, which revealed no significant difference between the ground and satellite measurements (<i>p</i> &gt; 0.05), despite observed changes in weather patterns. The results showed that the mean wind speed in the area ranged between 4 and 5.6 m/s at a height of 10 m, with a predominant wind direction from the East. The district exhibited a moderate turbulence intensity of 0.226, indicating fairly good suitability for wind power projects. A feasibility analysis determined that the study area, covering 142.03 km², has the potential to accommodate a 40 MW wind farm using 20 Enercon-82-E2 wind turbines (2 MW each) with an 80 m hub height. This installation could reduce Ghana's Wind Utility Scale total target for 2030 by 25.256%. These findings suggest that the Ningo-Prampram District possesses favorable conditions for sustainable wind power development.</p>","PeriodicalId":11673,"journal":{"name":"Energy Science & Engineering","volume":"13 3","pages":"1375-1391"},"PeriodicalIF":3.5,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ese3.2079","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143602853","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}

{"title":"Key Technologies for Horizontal Well Development in Deep Tight Sandstone Reservoirs","authors":"Yiting Guan,&nbsp;Xin Cheng,&nbsp;Xiaoyang Chen","doi":"10.1002/ese3.2068","DOIUrl":"https://doi.org/10.1002/ese3.2068","url":null,"abstract":"<p>Deep tight sandstone oil and gas reservoirs are exerting an increasingly crucial role in the augmentation of fossil energy reserves and the provision of energy. On account of the intricate geological conditions and the deficiency of a comprehensive set of exploration and development engineering technologies as well as supporting processes, the present development of deep tight sandstone oil and gas reservoirs remains in its nascent stage. Through the analysis and generalization of the horizontal well development technology for deep tight sandstone oil and gas reservoirs, a series of technologies have been established, encompassing reservoir geological evaluation and modeling, horizontal well development reservoir engineering validation, horizontal well geological design, and enhanced oil recovery processes. By taking the C 6 reservoir in Ordos basin, China as the research subject, in light of the research outcomes regarding the damage mechanisms and potential damage factors of tight sandstone oil and gas reservoirs, a geological evaluation approach based on the well log response characteristics was constructed, clarifying the porosity and permeability features of the C 6 reservoir, establishing the numerical model of the oil reservoir, and further elaborating the methods for dividing the development layers, selecting the development well pattern, and determining the development well density. The design parameters of horizontal well-segmented hydraulic fracturing were meticulously optimized, resulting in a minimum cluster spacing of 7 m and a maximum cluster spacing of 20 m. Given the influence of horizontal stress differences, the optimum fracturing density was ascertained to be 16 perforations per meter, and the optimal fracturing fluid volume was identified through simulation to range from 12 to 25 m³/m. The crucial technologies for the development of tight sandstone oil and gas reservoirs in horizontal wells have been clearly identified, offering theoretical direction for the efficient exploitation of deep tight sandstone oil and gas reservoirs.</p>","PeriodicalId":11673,"journal":{"name":"Energy Science & Engineering","volume":"13 3","pages":"1323-1336"},"PeriodicalIF":3.5,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ese3.2068","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143602855","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}

{"title":"Integrated Planning Model for Optimizing Investments in Hydrogen Infrastructure Deployment: A Case Study of Yangtze River Delta Region, China","authors":"Weijie Shen,&nbsp;Hua Li,&nbsp;Hongjian Ding,&nbsp;Ming Zeng,&nbsp;Chuansheng Xie,&nbsp;Xiaochun Zhang","doi":"10.1002/ese3.2069","DOIUrl":"https://doi.org/10.1002/ese3.2069","url":null,"abstract":"<p>The hydrogen industry is of great significance for global energy system transition and decarbonization; thus, the holistic planning of hydrogen infrastructure from a supply chain level is necessary. To this end, first, the framework and methods in the hydrogen infrastructure deployment research were investigated systematically. Second, a hydrogen supply chain design (HSCD) model and a hydrogen refueling station location (HRSL) model were constructed. In view of the limitations of the two models, this paper reformulated the HRSL model through alternating the objective function and constraint, then proposed an integrated planning model using the <span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 \u0000 <mrow>\u0000 <mi>ϵ</mi>\u0000 </mrow>\u0000 </mrow>\u0000 <annotation> &lt;math altimg=\"urn:x-wiley:20500505:media:ese32069:ese32069-math-0001\" wiley:location=\"equation/ese32069-math-0001.png\" display=\"inline\" xmlns=\"http://www.w3.org/1998/Math/MathML\"&gt;&lt;mrow&gt;&lt;mrow&gt;&lt;mi mathvariant=\"italic\"&gt;unicode{x003F5}&lt;/mi&gt;&lt;/mrow&gt;&lt;/mrow&gt;&lt;/math&gt;</annotation>\u0000 </semantics></math>-constraint method, which relaxed the assumption condition and expanded the decision-making boundary of the original model, realizing the reasonable equilibrium of multiple segments. Finally, a case study was conducted using the Yangtze River Delta region as an example, and the main findings were as follows: (1) To meet the hydrogen demand of 25494t/d, the Yangtze River Delta region needs to build 94 coal gasification hydrogen plants, storage facilities with capacity of 12747t, transmission modes with capacity of 2333t/d, and 150 hydrogen refueling stations. (2) Railways have more advantages in large capacity and long-distance hydrogen transmission. (3) Road segments with higher traffic flow often have a higher capture proportion. (4) The investment cost accounts for the majority of hydrogen production plant construction, which is 43.80%.</p>","PeriodicalId":11673,"journal":{"name":"Energy Science & Engineering","volume":"13 3","pages":"1306-1322"},"PeriodicalIF":3.5,"publicationDate":"2025-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ese3.2069","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143602654","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}

{"title":"External Flow Field and Rock Erosion Characteristics of a Coaxial Straight-Swirling Mixed Jet","authors":"Peng Du,&nbsp;Zhao Peng","doi":"10.1002/ese3.2072","DOIUrl":"https://doi.org/10.1002/ese3.2072","url":null,"abstract":"<p>Radial jet drilling is an effective technology for mining coal-bed methane. A self-propelled jet bit greatly affects drilling efficiency. Simulations and laboratory experiments using a coaxial straight-swirling mixed jet (CSMJ) were performed to study the flow field and rock erosion characteristics, and analyze laws influencing key structural parameters (straight-swirling flow ratio <i>N</i>, slot length–width ratio <i>d</i>_r/<i>d</i>_s, mixing chamber length–diameter ratio <i>L</i>_q/<i>D</i>_q, and linear segment length–diameter ratio <i>L</i>_f/<i>d</i>_f) on the flow field and rock erosion characteristics, and study the change law of the axial velocity of the flow field under different structural parameters and the distribution law of the three-dimensional velocity along the radial direction at the non-dimensional injection distance of 5.56. The CSMJ displayed characteristics of a straight jet, having a high-velocity area near the axis. The velocity was attenuated with increasing dimensionless jet distance <i>L</i>_s/<i>d</i>_f. The bit also displayed characteristics of a swirling jet, with an obvious jet diffusion with increased <i>L</i>_s/<i>d</i>_f. <i>N</i> affected the distribution ratio of the straight and swirling jets, and <i>d</i>_r<i>/d</i>_s mainly affected CSMJ rotational shear energy. With the centerline velocity and radial distribution of the CSMJ as evaluation indices, the optimal parameters of the CSMJ suitable for self-propelled drilling were <i>N</i> = 0.46, <i>d</i>_r/<i>d</i>_s = 3.88, <i>L</i>_q/<i>D</i>_q = 0.67, and <i>L</i>_f/<i>d</i>_f = 0.56. Optimal flow field parameters also optimized the erosion capability, realizing the mutual verification of experimental and simulation results. The erosion hole crushing volume was used as the evaluation sequence. The parameter's sensitivity to the rock erosion volume was <i>L</i>_s/<i>d</i>_f &gt; <i>L</i>_q/<i>D</i>_q <i>&gt; d</i>_r/<i>d</i>_s &gt; <i>N</i>. The results provide engineering guidance for determining reasonable parameters for radial jet drilling.</p>","PeriodicalId":11673,"journal":{"name":"Energy Science & Engineering","volume":"13 3","pages":"1402-1413"},"PeriodicalIF":3.5,"publicationDate":"2025-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ese3.2072","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143602652","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}

{"title":"Eco-Friendly Extraction and Utilization of Agro Crop Wastes Based Natural Dye for Textile Dyeing","authors":"Nimra Amin,&nbsp;Fazal-ur- Rehman,&nbsp;Shahid Adeel,&nbsp;Muhammad Ibrahim,&nbsp;Rony Mia","doi":"10.1002/ese3.2067","DOIUrl":"https://doi.org/10.1002/ese3.2067","url":null,"abstract":"<p>The incorporation of waste plant residues into practical applications, particularly as a sustainable source of green dyes in textiles, is increasingly recommended by the global community. This research investigates the potential of Rangoon creeper flowers and madder roots for silk dyeing through environmentally friendly methodologies. Therefore, extraction procedures were conducted in suitable mediums and applied to the fabric before and after microwave (MW) treatment for durations of up to 10 min. Similarly, response surface methodology was employed to assess the significance of various dyeing parameters, which influence shade development and enhance colorfastness. The results indicate that subjecting acidic binary extracts of Rangoon creeper flowers and madder roots, along with silk fabric, to 6 min of radiation at 700 W is an effective condition for achieving colorfast shades, particularly when applied before and after mordanting with Al, Fe salts, and tannic acid single and their binary solution as eco-chemical agents. The highest color strength (K/S = 15.0) was obtained using an acidic extract after MW treatment. Hence, evaluation based on standard methods such as ISO protocols for lightfastness, wash fastness, and rub fastness demonstrates that employing selected shades produced under environmentally friendly conditions is both time and energy-efficient, yielding stable colorfast hues rated from good to excellent. This study suggests that utilizing microwave treatment in addition to statistical methodologies like the central composite design for exploring novel dye-yielding plants, coupled with eco-mordanting techniques, holds promise for obtaining desirable colorfast shades.</p>","PeriodicalId":11673,"journal":{"name":"Energy Science & Engineering","volume":"13 3","pages":"1280-1291"},"PeriodicalIF":3.5,"publicationDate":"2025-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ese3.2067","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143602653","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}

{"title":"Exploring the Prevalence of Renewable Energy Practices and Awareness Levels in Palestine","authors":"Mai Abuhelwa,&nbsp;Mohamed Elnaggar,&nbsp;Wael A. Salah,&nbsp;Yasser F. Nassar,&nbsp;Mohammed J. K. Bashir","doi":"10.1002/ese3.2070","DOIUrl":"https://doi.org/10.1002/ese3.2070","url":null,"abstract":"<p>The growing demand for energy in developing societies, coupled with dwindling conventional resources, necessitates the adoption of renewable energy (RE) sources. A comprehensive understanding of these sources and their optimal utilization is crucial. The awareness of the users plays a very important role in the effective utilization of different energy sources. Hence, this study examines the level of RE awareness in Palestine, identifying factors influencing public perception and exploring potential strategies for promoting RE adoption. This awareness depends on different factors related to the users' education level, community type, and type of building. Different factors that affect the willingness and attitude to gain knowledge about RE are presented. In addition, various practices highlighting the increasing level of awareness regarding the adoption of RE sources are investigated. In addition, the status of RE education and its potential impact on engineers have also been discussed. Various individual and institutional efforts are highlighted in the study as strategies to bridge the gap and overcome obstacles to adopting RE sources. Suggestions for better use of these resources have been highlighted. Thereafter, recommendations for effective RE implementation in Palestine are analyzed and conclusions are drawn. The main challenges in integrating RE into Palestine's existing energy grid and system include infrastructure limitations, resources and financial constraints, and political issues. Still, there are possibilities in the form of international collaboration and investment. A flexible and modular RE grid could also address some of these challenges by integrating small-scale systems that can be scaled up as needed.</p>","PeriodicalId":11673,"journal":{"name":"Energy Science & Engineering","volume":"13 3","pages":"1292-1305"},"PeriodicalIF":3.5,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ese3.2070","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143602593","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}

{"title":"Stability Analysis and Failure Control of Composite Roof in Mining Roadway Considering Plastic Zone Expansion","authors":"Kun Pan,&nbsp;Biao Hou,&nbsp;Zhen Zhang,&nbsp;Wenjun Ju,&nbsp;Dongshan Huang,&nbsp;Yinwei Wang","doi":"10.1002/ese3.2023","DOIUrl":"https://doi.org/10.1002/ese3.2023","url":null,"abstract":"<p>To address the problems of the large deformation of surrounding rock, failure of support, and even roof fall under the influence of severe mining in the return airway of the panel I0116³06 in Mindong No.1 Coal Mine, the fracture evolution characteristics and deformation law of the roadway composite roof were investigated through numerical simulation, theoretical analysis, and on-site detection. With the continuous evolution of the magnitude and direction of the main stress in the surrounding rock of the mining roadway with a composite roof, the following observations were made: first, plastic failure occurred in the shallow area; second, because the undamaged hard coal seam cannot block the expansion of the plastic zone, the plastic zone crosses the undamaged hard coal seam and expands into the deep part. The strong deformation pressure caused by the expanding plastic failure of the deep interlayer leads to tensile fracture failure at the middle of the lower part of the undamaged hard coal seam, and to overall instability. According to the evolutionary pattern of the plastic zone in the composite roof of the mining roadway, the multi-level coupling support technology (MCST) focusing on the fracture morphology of the composite roof is applied to the test roadway. The field monitoring results reveal that the application effect is satisfactory.</p>","PeriodicalId":11673,"journal":{"name":"Energy Science & Engineering","volume":"13 2","pages":"687-699"},"PeriodicalIF":3.5,"publicationDate":"2025-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ese3.2023","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143438859","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}

{"title":"Simplified Heat Transfer Model for Spiral-Coil Energy Pile Groups and the Pile–Pile Thermal Interference","authors":"Wang Dai,&nbsp;Shi Gang,&nbsp;Wang Song,&nbsp;Cai Hanshen","doi":"10.1002/ese3.2061","DOIUrl":"https://doi.org/10.1002/ese3.2061","url":null,"abstract":"<p>The spiral heat exchanger of the energy pile groups is divided into multiple segments. Each heat exchanger segment is regarded as a three-dimensional spiral heat source of finite length. Based on the segmental superposition method of time and space, a variable heat flow segmental superposition heat transfer model of spiral buried-pipe energy pile groups considering the heat transfer between circulating water and energy pile is derived and established. The correctness of the simplified heat transfer model in this paper is verified by comparing its results with those of a COMSOL finite element model. Additionally, a simplified heat transfer model is used to study the thermal interference of energy pile groups. The results show that with the increase in working time, the thermal interference between energy pile groups increases gradually. The pile spacing <i>s</i> and pile diameter <i>d</i> have a significant effect on the thermal interference between energy pile groups: the smaller the pile spacing and pile diameter, the stronger is the thermal interference between energy pile groups. The pile length has a negligible effect on the thermal interference between energy pile groups. The larger the number of energy pile groups, the stronger is the thermal interference between energy pile groups. The thermal interference of an energy pile is related to its position in the pile groups. The thermal interference of the central pile is the largest. This is followed by the edge pile and then the corner pile. Considering the thermal shielding effect of energy piles, only the influence of adjacent piles should be considered when analyzing the thermal interference of energy piles. In addition, the pitch of the spiral heat exchanger and the flow rate of the circulating water have negligible effects on the thermal interference between energy piles. The operation mode of energy pile groups has a significant effect on the thermal interference between energy piles. The thermal interference of energy pile groups in the intermittent operation mode is stronger than that in the continuous operation mode. The shorter the intermittent time, the more intense is the thermal interference of energy piles. These factors should be considered in engineering design.</p>","PeriodicalId":11673,"journal":{"name":"Energy Science & Engineering","volume":"13 3","pages":"1205-1222"},"PeriodicalIF":3.5,"publicationDate":"2025-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ese3.2061","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143602629","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}

{"title":"Environmental Impact of Waste Peel Biodiesel–Butylated Hydroxytoluene Nanoparticle Blends on Diesel Engine Emissions","authors":"Ravikumar Jayabal,&nbsp;Rajkumar Sivanraju","doi":"10.1002/ese3.2033","DOIUrl":"https://doi.org/10.1002/ese3.2033","url":null,"abstract":"<p>Alternative fuels for diesel engines are essential to reduce greenhouse gas emissions, improve energy security by reducing dependence on petroleum, and minimise air pollution by using cleaner-burning fuels. This study investigates the environmental effects of utilising biodiesel derived from waste mosambi peel oil as a sustainable fuel alternative for common rail direct injection diesel engines. Butylated hydroxytoluene (BHT) nanoparticles were employed as an ignition enhancer to mitigate the emissions. The test fuels comprised conventional diesel, mosambi waste peel biodiesel (MWPB), and MWPB blends with BHT [MWPB + 10-µm BHT 10 ppm (parts per million) and MWPB + 20-µm BHT 10 ppm]. The test results indicated that the MWPB + 10-µm BHT 10 ppm blend significantly reduced primary pollutants, with smoke, hydrocarbon and carbon monoxide emissions by 42.3%, 38.09% and 61.71%, respectively, compared to pure diesel. Utilising MWPB resulted in a substantial 14.67% increase in nitrogen oxide emissions at maximum brake power. This study emphasises the potential of waste-derived biodiesel to substantially minimise environmental emissions, encouraging a more sustainable energy future.</p>","PeriodicalId":11673,"journal":{"name":"Energy Science & Engineering","volume":"13 2","pages":"742-751"},"PeriodicalIF":3.5,"publicationDate":"2025-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ese3.2033","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143438860","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}

{"title":"Numerical Simulation Study on the Effect of Bend Angle on the Flow Characteristics of Natural Gas Hydrate Particles","authors":"Dongliang Shao,&nbsp;Chenglong Zhang,&nbsp;Yongchao Rao,&nbsp;Shuli Wang,&nbsp;Fei Li,&nbsp;Meng Yu,&nbsp;Wenjuan Su,&nbsp;Wenjing Wu,&nbsp;Zijia Gong","doi":"10.1002/ese3.1967","DOIUrl":"https://doi.org/10.1002/ese3.1967","url":null,"abstract":"<p>Bend pipe is a commonly used part of long-distance pipelines. It is very important to study the flow law of hydrate particles in the bend pipe to optimize pipeline design. In addition, the efficiency and safety of pipeline gas transmission will be improved. The flow of hydrate particles in the bend pipe is the research object of this paper, and the short twist tape is used as the spiral device, and numerical simulation methods are used to study the effects of the bend angle and the twist rate on the velocity distribution, turbulence intensity distribution, wall shear, particle movement and pressure drop distribution of the spiral flow carrying hydrate particles. The results show that as the twist rate of the twist tape is smaller, and the spiral flow is stronger, the fluid can generate a larger tangential velocity when flowing through the bend. The maximum speed at the section closest to the entrance is 28% higher than at the section furthest. Maximum tangential speed increased by 2 times. When the angle of the bend is larger, and velocity is more conducive to maintaining the spiral flow pattern of the particles, it is also more conducive to maintain. However, the twist rate is smaller, and the resistance is greater, then the pressure drop is greater, and the resistance coefficient of the bend pipe section is greater. With the increase of torsion, the pressure drop decreased by 52%. When the angle of the bend pipe section becomes smaller, it increases the collision frequency between the pipe wall and the natural gas. Unit pressure drop loss increased by 13%. When the angle is smaller, the change in the direction of the velocity of the particles will be more violent, and the pressure drop is larger, and the drag coefficient is larger. In the same section, the maximum turbulence intensity is about twice the minimum.</p>","PeriodicalId":11673,"journal":{"name":"Energy Science & Engineering","volume":"13 2","pages":"512-529"},"PeriodicalIF":3.5,"publicationDate":"2025-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ese3.1967","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143438861","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}