{"title":"Minimizing Carbon Capture Costs in Power Plants: A Dimensional Analysis Framework for Optimizing Hybrid Post-Combustion Systems","authors":"Donald Obi, Samuel Onyekuru, Anslem Orga","doi":"10.1002/ese3.2052","DOIUrl":"https://doi.org/10.1002/ese3.2052","url":null,"abstract":"<p>Mitigating greenhouse gas emissions from power plants is crucial for transitioning to a low-carbon economy, necessitating the development of efficient carbon capture, utilization, and storage (CCUS) technologies. CCUS technologies are vital for achieving significant emissions reductions, with post-combustion carbon capture (PCC) emerging as a promising solution. However, high costs and energy penalties hinder its widespread adoption. Recent advancements in hybrid PCC configurations offer improved efficiency and cost reduction, necessitating comprehensive evaluations. This study investigates six feasible hybrid PCC configurations, integrating absorption, absorption, and membrane technologies, to identify the most viable option for CO<sub>2</sub> capture from natural gas power plants (NGPPs). A rigorous techno-economic evaluation is performed using Aspen Hysys design simulation and economic metrics, including investment costs, production costs, net present value, rate of return, levelized cost of electricity, carbon emission intensity, and cost of carbon avoidance. Dimensional analysis reveals the two-stage membrane + absorbent hybrid (2S-MB + AB) configuration as the most promising option. It demonstrates significant cost savings potential, with a 25% reduction in carbon capture costs. Sensitivity analyses highlight the critical role of optimal material selection, specifically membranes, and absorbents, in commercializing this technology. The findings contribute to developing efficient and cost-effective CCUS solutions, aligning with global efforts to mitigate climate change. The recommended 2S-MB + AB configuration offers a promising solution for reducing CO<sub>2</sub> emissions from NGPPs, providing valuable insights for policymakers, industry stakeholders, and researchers. This research informs emissions regulations and incentives for CCUS adoption, guides investment decisions and technology development, and identifies further research and development areas.</p>","PeriodicalId":11673,"journal":{"name":"Energy Science & Engineering","volume":"13 5","pages":"2247-2261"},"PeriodicalIF":3.5,"publicationDate":"2025-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ese3.2052","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143919927","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":"Optimal Reactive Power Planning Using FACTS Devices for Voltage Stability Enhancement in Power Transmission Systems","authors":"Rawan Abu Zeitawyeh, Ayman Faza","doi":"10.1002/ese3.70064","DOIUrl":"https://doi.org/10.1002/ese3.70064","url":null,"abstract":"<p>The increased demand for electricity has forced power systems to operate near their stability limits. Optimal reactive power planning (ORPP) can enhance voltage stability and provide much-needed support for grid operation. Flexible AC transmission system (FACTS) devices can provide the necessary reactive compensation in the form of series and shunt compensation devices, which, together with Distributed Generation (DG) units, can enhance voltage stability and prevent potentially catastrophic events such as voltage collapse or blackouts. In this study, the L-index and the fast voltage stability index (FVSI) are used to evaluate voltage stability in the system. Objective functions are developed that incorporate the cost of the FACTS devices and the stability indices to provide a basis for optimizing system operation. Optimization was performed for the series and shunt compensations separately. Moreover, a multi-objective optimization is also presented that incorporates both devices together. Results show that using both series and shunt compensation enhances voltage stability. Furthermore, combining both methods provides a significant improvement over their individual enhancements. Increasing the penetration of DG sources also provides significant improvement in system stability. The main findings conclude that both real and reactive power injections can improve system stability; however, careful considerations should be made when choosing the best location and sizing for the FACTS devices and the DG sources to maximize the benefits of their use on voltage stability.</p>","PeriodicalId":11673,"journal":{"name":"Energy Science & Engineering","volume":"13 6","pages":"2720-2756"},"PeriodicalIF":3.5,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ese3.70064","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144244830","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":"Health State Assessment Method for Complex Systems Based on Correlation Decoupled Belief Rule Base","authors":"Sulong Li, Hailong Zhu, Kaitong Zhu, Kangle Li","doi":"10.1002/ese3.70076","DOIUrl":"https://doi.org/10.1002/ese3.70076","url":null,"abstract":"<p>Belief rule base (BRB) has been widely used in the health state assessment of complex systems because of its excellent performance in complex system modeling. However, most existing health assessment models assume attribute independence, whereas in real-world engineering applications, correlations between attributes can degrade modeling performance and compromise robustness. To quickly and effectively address the impact of attribute correlation on the model, this paper proposes the BRB model, which is based on correlation decoupling (BRB-CD). The method introduces a decoupling matrix calculation strategy based on correlation analysis. First, the decoupling matrix is constructed based on the attribute features and its parameters are optimized by minimizing the correlation coefficient between attributes. Second, the input data are transformed using the decoupling matrix, and the data after decoupling is used as the new input to reduce the effects of redundant information and perturbations. Finally, through the experimental validation of the health state assessment of the WD615 diesel engine, it is found that the BRB-CD model can realize more accurate health state assessment, and the model has better robustness.</p>","PeriodicalId":11673,"journal":{"name":"Energy Science & Engineering","volume":"13 6","pages":"2911-2921"},"PeriodicalIF":3.5,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ese3.70076","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144244624","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":"Correction to “Developing a Thermodynamic Model for the Circulating Air Using an Opaque System”","authors":"","doi":"10.1002/ese3.70096","DOIUrl":"https://doi.org/10.1002/ese3.70096","url":null,"abstract":"<p>Dhaundiyal A., and Laszlo T. “Developing a thermodynamic model for the circulating air using an opaque system.” <i>Energy Science & Engineering</i> 11, no. 10 (2023): 3790–3806. https://doi.org/10.1002/ese3.1555</p><p>Alok Dhaundiyal<sup>1,2</sup></p><p><sup>1</sup>HUN-REN Centre for Energy Research, Konkoly-Thege Miklós út 29-33, 1121 Budapest, Hungary </p><p><sup>2</sup>THDC Institute of Hydropower Engineering and Technology, Uttarakhand Technical University, Tehri Garhwal, Uttarakhand, India</p><p><b>Correspondence:</b> Alok Dhaundiyal (<span>[email protected]</span>)</p><p>The main affiliation “HUN-REN Centre for Energy Research, Konkoly-Thege Miklós út 29-33, 1121 Budapest, Hungary” was missing.</p><p>We apologize for this error.</p>","PeriodicalId":11673,"journal":{"name":"Energy Science & Engineering","volume":"13 6","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ese3.70096","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144245042","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":"Investigation on Influence of Acetylene Enrichment in Diesel Engines Operating With Microalgae-Waste Plastic Oil-Heptane Fuel Mixture","authors":"Veeraraghavan Sakthimurugan, Devarajan Yuvarajan, Subbulakshmi Ganesan, Vijay J. Upadhye, Amandeep Gill, Nandagopal kailiappan","doi":"10.1002/ese3.70089","DOIUrl":"https://doi.org/10.1002/ese3.70089","url":null,"abstract":"<p>This study investigates the performance and emission characteristics of a diesel engine running on a blend of Scenedesmus obliquus (SO) biodiesel, pyrolyzed waste plastic oil (WP), n-heptane (H), and acetylene induction (SOPWH), tested under various engine loads at 1500 rpm. The goal is to enhance brake thermal efficiency (BTE) and reduce emissions in alignment with Sustainable Development Goals (SDGs) 7 and 11, which focus on clean energy and sustainable cities. The SO biodiesel was produced via transesterification of algae grown in recycled wastewater, while WP oil was obtained through pyrolysis at 450°C. n-Heptane was added to optimize the blend, and 4 liters per minute of acetylene was inducted into the intake manifold. Results showed that the SO5WP5H10 blend improved BTE by 0.93% at no load and reduced brake-specific energy consumption (BSEC) by 0.686 MJ/kW-h at part load, compared to diesel. Emission reductions included a 28% decrease in hydrocarbon (HC) emissions and a 35% reduction in carbon monoxide (CO) emissions at full load with the SO20WP20H10 blend. Smoke opacity decreased by 19% at maximum load. In terms of combustion, the SO5WP5H10 blend achieved a peak in-cylinder pressure of 77.5 bar and an efficient mass fraction burnt (MFB), reaching 90% at 25<sup>o</sup> CA after TDC. Overall, SOPWH blends showed enhanced combustion efficiency and cleaner emissions, positioning them as a sustainable alternative to diesel, without the need for engine modifications. This study aligns with global sustainability goals by offering a cleaner, more efficient fuel option for diesel engines.</p>","PeriodicalId":11673,"journal":{"name":"Energy Science & Engineering","volume":"13 6","pages":"3107-3122"},"PeriodicalIF":3.5,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ese3.70089","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144245041","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}
Xiang Ding, Yuhang Deng, Tianyu Wang, Mengyun Dong, Shaoming OuYang, Yingying Cao, Ao Huang, Hang Wei, Chenran Ding
{"title":"Numerical Simulation of Proppant Embedment Depth in Inhomogeneous Formation Based on Field Variables Method","authors":"Xiang Ding, Yuhang Deng, Tianyu Wang, Mengyun Dong, Shaoming OuYang, Yingying Cao, Ao Huang, Hang Wei, Chenran Ding","doi":"10.1002/ese3.70092","DOIUrl":"https://doi.org/10.1002/ese3.70092","url":null,"abstract":"<p>Hydraulic fracturing, a deep formation resource extraction method, is widely used to extract oil, gas, and geothermal resources, where fracturing fluids and proppants are usually injected to support the hydraulic fractures that transport the resources. After fracturing fluid loss, there will be the embedding process of proppant in inhomogeneous formations. To understand the mechanism of this phenomenon, the study comparatively investigated the embedding process of proppant in homogeneous formations, layered formations, and continuously varying inhomogeneous formations with finite element methods. Specifically, formation properties, in terms of the inhomogeneous formations, are defined as the nonlinear function of a constant position with the field-variable (FV) method. The results show that equating nonhomogeneous formation to homogeneous formation underestimates the depth of proppant embedment in actual hydraulic fractures, which varies with proppant size. Next, the underestimation of proppant embedment in homogeneous formation, in turn, results in an overestimation of hydraulic fracture permeability. The FV method can more accurately characterize the proppant embedding process in inhomogeneous formations and reflect the fracture permeability after proppant embedding. Further, the advantages, limitations, and future research directions of this study are discussed.</p>","PeriodicalId":11673,"journal":{"name":"Energy Science & Engineering","volume":"13 6","pages":"3135-3150"},"PeriodicalIF":3.5,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ese3.70092","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144245040","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}
Muhammad Akhtar, Waqar Muhammad Ashraf, Nasir Hayat, Ghulam Moeen Uddin, Fahid Riaz
{"title":"Numerical and Experimental Investigation of Gas Turbine Rotor for Early Fault Detection","authors":"Muhammad Akhtar, Waqar Muhammad Ashraf, Nasir Hayat, Ghulam Moeen Uddin, Fahid Riaz","doi":"10.1002/ese3.70054","DOIUrl":"https://doi.org/10.1002/ese3.70054","url":null,"abstract":"<p>Rotodynamic analysis is a key analysis for turbomachinery for investigating the health and integrity of equipment. Most of the analyses are performed at the design stage, while the actual machine behavior is different due to imperfections like unbalance, misalignment, cracks, and so forth. In this paper, a representative CAD model of a gas turbine rotor is developed to get the actual rotodynamic response of a rotor. Vibration data of the rotor is compared with that of the developed numerical model. The reference model representation of the actual machine in terms of critical speed and vibration value is found to be 99.7% and 99.1%, respectively. Rotodynamic analyses of numerical models are performed for early identification of faults under various scenarios of unbalance, crack, and crack with unbalance. For these scenarios, modal analysis and harmonic analysis are performed. Natural frequencies and vibration behavior are utilized to capture the variation that indicates the presence of a fault. This way, early identification of faults is made to save the machine from damage. Within the unbalance range of <span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 \u0000 <mrow>\u0000 <msup>\u0000 <mrow>\u0000 <mn>1.0</mn>\u0000 \u0000 <mo>×</mo>\u0000 \u0000 <mn>10</mn>\u0000 </mrow>\u0000 \u0000 <mrow>\u0000 <mo>−</mo>\u0000 \u0000 <mn>9</mn>\u0000 </mrow>\u0000 </msup>\u0000 </mrow>\u0000 </mrow>\u0000 </semantics></math> to 0.5 kg, a direct relation between change in unbalance mass and vibration amplitude is observed in the case of unbalance and unbalance with crack. Similarly, for cracks (of 1–3 mm thickness and depth up to 372 mm), a shift in maximum vibration amplitude frequency to first critical speed from second critical speed is noted. Hilbert transform is utilized to track the nonlinearity especially up to an operating speed of 3000 rpm (50 Hz). These key outcomes can be used to reduce rotary machine downtime by not only highlighting the problem at a very early stage but also swiftly identifying its root cause for the smooth working of rotary equipment in the industry.</p>","PeriodicalId":11673,"journal":{"name":"Energy Science & Engineering","volume":"13 5","pages":"2546-2564"},"PeriodicalIF":3.5,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ese3.70054","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143919365","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}
Yongsheng An, Zhongwen Sun, Jin Wang, Xiaoyu Zhang, Yangfeng Sun
{"title":"Numerical Simulation of Deep Coalbed Methane Development Based on Embedded Discrete Fracture Model: A Triple Medium Flow Approach","authors":"Yongsheng An, Zhongwen Sun, Jin Wang, Xiaoyu Zhang, Yangfeng Sun","doi":"10.1002/ese3.70085","DOIUrl":"https://doi.org/10.1002/ese3.70085","url":null,"abstract":"<p>China is rich in coalbed methane resources, especially with significant potential for deep coalbed methane development. As shallow coalbed methane resources gradually deplete, the development of deep coalbed methane has become a research focus. Due to the low permeability and micro-scale migration characteristics of deep coalbed methane, its exploitation requires different approaches compared to shallow coalbed methane. This paper, based on the embedded discrete fracture numerical simulation technology used for shale gas, considering the shrinkage effect of coal matrix, establishes a triple-medium flow model comprising cleats, natural fractures, and artificial fractures to simulate the deep coalbed methane extraction process. When compared with traditional numerical simulation methods using real well data, the new model improves accuracy by 8.08%. The sensitivity analysis of engineering parameters and geological parameters in the development of deep coalbed methane reveals that the gas content coal seams are the main factors affecting gas production. To obtain high-yield gas wells, it is necessary to create a complex hydraulic pressure fracture network in high gas content layers. This study provides a new numerical simulation model for deep coalbed methane development. The model couples cleats, natural fracture networks, and fractures, and accurately represents the geological characteristics of deep coalbed methane reservoirs. Additionally, this study provides theoretical support for improving the production of deep coalbed methane through one-factor sensitivity analysis.</p>","PeriodicalId":11673,"journal":{"name":"Energy Science & Engineering","volume":"13 6","pages":"3045-3062"},"PeriodicalIF":3.5,"publicationDate":"2025-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ese3.70085","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144244635","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}
Mohammad DehghaniSanij, Ahmad Mirzaei, Amjad Anvari-Moghaddam
{"title":"Risk-Based Expansion Planning of Regional Energy Networks","authors":"Mohammad DehghaniSanij, Ahmad Mirzaei, Amjad Anvari-Moghaddam","doi":"10.1002/ese3.70079","DOIUrl":"https://doi.org/10.1002/ese3.70079","url":null,"abstract":"<p>Reliable power supply provision for customers is very important for electrical energy providers. The emergence of regional energy networks (RENs), and electricity market developments add to the above challenges. RENs consist of natural gas and electricity as inputs and energy storage systems (ESSs), combined heat and power (CHP) systems, thermal energy storages (TESs), boilers, photovoltaics (PVs) and wind turbines (WTs) as resources. In this paper, a risk-based expansion planning model is developed for RENs considering operation and investment costs. PVs and WTs power generation, demand response (DR), and failures of tie switches between REN and distribution networks are defined as RENs operation uncertainties. Reliability index is formulated and Probability-Tree tool is used for scenario generation. The mentioned optimization problem is solved using a genetic algorithm (GA). We use 25-Bus IEEE standard distribution network to verify the efficiency and performance of the proposed model. Two RENs are connected to the test system and simulation results are obtained for two case studies. Simulation results show that if the probability of failure of tie switches is considered, the investment and operation costs of RENs are increased by about 92% in the planning horizon.</p>","PeriodicalId":11673,"journal":{"name":"Energy Science & Engineering","volume":"13 6","pages":"2960-2972"},"PeriodicalIF":3.5,"publicationDate":"2025-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ese3.70079","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144244636","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}
An Jintao, Li Jun, Honglin Huang, Hui Zhang, Hongwei Yang, Geng Zhang, Sainan Chen, Qiuxia Lai
{"title":"Analysis of Cuttings Transport in Small-Bore Horizontal Wells Considering Drill String Eccentricity","authors":"An Jintao, Li Jun, Honglin Huang, Hui Zhang, Hongwei Yang, Geng Zhang, Sainan Chen, Qiuxia Lai","doi":"10.1002/ese3.70088","DOIUrl":"https://doi.org/10.1002/ese3.70088","url":null,"abstract":"<p>The narrow annulus in small-bore horizontal wells causes marked differences in cuttings transport compared to conventional horizontal wells. To address this issue, a CFD-based numerical model for solid-liquid two-phase flow in the annulus was developed, accounting for the eccentricity of the drill string. The study examines the effects of key factors, including flow rate, drill pipe rotation speed, well inclination angle, and drilling fluid properties, on cuttings transport in small-bore horizontal wells. Results show that increasing drill pipe rotation speed enhances tangential and axial velocities of the annular fluid by up to 25%, expanding the “viscous coupling” region. This facilitates the upward movement of cuttings from the lower to the upper side of the annulus, improving cuttings transport. Increasing drilling fluid density enhances cuttings buoyancy, reducing their deposition by 43%. A “critical rotation speed” and “critical flow rate” exist, below which cuttings transport is most difficult in highly inclined sections and above which transport is most challenging in horizontal sections. Increasing drilling fluid density enhances cuttings buoyancy, reducing their deposition. The effect of rheological parameters on hole cleaning efficiency exhibits a nonlinear trend, with an optimal range of these parameters existing under varying flow rates and drill pipe rotation speeds. These findings offer guidance for optimizing hydraulic parameters in small-bore horizontal wells and preventing stuck pipe incidents.</p>","PeriodicalId":11673,"journal":{"name":"Energy Science & Engineering","volume":"13 6","pages":"3088-3106"},"PeriodicalIF":3.5,"publicationDate":"2025-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ese3.70088","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144244637","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}