Energy Conversion and Management最新文献

{"title":"Transient characteristics of recompression supercritical CO2 power system under variable heating and cooling conditions","authors":"Wenxi Jiang,&nbsp;Xin Wang,&nbsp;Yuanyang Zhao,&nbsp;Yunxia Liu,&nbsp;Guangbin Liu,&nbsp;Qichao Yang,&nbsp;Liansheng Li","doi":"10.1016/j.enconman.2026.121117","DOIUrl":"10.1016/j.enconman.2026.121117","url":null,"abstract":"<div><div>As one of the cutting-edge power technologies, the supercritical carbon dioxide (sCO₂) Brayton cycle (SCBC) power generation system features broad heat source compatibility. Beyond traditional fossil fuels, it can be coupled with fourth-generation nuclear reactors or concentrating solar thermal systems, demonstrating significant development potential. This study investigates the dynamic behavior of a recompression sCO₂ Brayton cycle (RCBC) power system through variations in the mass flow rates of fluids in the heater hot side (HHS) and the pre-cooler cold side (PCS). The results show that when the HHS flow rate changes, the system takes about 300 s to stabilize; while the system stabilizes faster when the PCS flow rate changes, reaching stability in about 200 s. However, the excessive flow rate in the HHS induces severe temperature transients that may lead to thermo-mechanical fatigue in the heater. A reduction in the flow rate in the HHS nonlinearly degrades the turbine performance. When the flow rate drops by 25%, the turbine efficiency only decreases by 0.3%. When the flow rate drops by 75%, the turbine efficiency decreases by 5.5%. The influence of the change in the HHS flow rate on the efficiency of the compressor can be ignored. However, the main compressor is highly sensitive to changes in the flow rate in the PCS. When the flow rate drops by 50%, the efficiency of the main compressor decreases by approximately 0.5%. For every 25% increase in the flow rate, the efficiency of the main compressor rises by nearly 0.3%. Adjusting the flow rate in the PCS can rapidly change total compressor power consumption, and adjusting the flow rate in the HHS can rapidly change the net power of the turbine. This study provides a reference for designing reasonable control strategies when disturbances occur in the HHS or PCS for RCBC systems, aiming to reduce system response time and mitigate detrimental fluctuations.</div></div>","PeriodicalId":11664,"journal":{"name":"Energy Conversion and Management","volume":"352 ","pages":"Article 121117"},"PeriodicalIF":10.9,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146033471","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}

{"title":"Intensified turbulent thermal convection with reversible reactive fluid","authors":"Ran Yao,&nbsp;Sajad Jafari,&nbsp;Christophe Duwig","doi":"10.1016/j.enconman.2026.121111","DOIUrl":"10.1016/j.enconman.2026.121111","url":null,"abstract":"<div><div>Enhancing heat transfer in turbulent convection has been a long-standing challenge in many energy and industrial processes. However, despite decades of efforts, conventional strategies have achieved only limited success, due to the intrinsic bounds of turbulent mixing. Inspired by thermal-chemical energy conversion, this work unlocks a fundamentally new route for intensified heat transfer by introducing a reversible chemical reaction (N₂O₄ ↔ 2NO₂) into Rayleigh-Bénard convection. The resulting reactive convection achieves an unprecedented increase in heat transfer (over seven times) relative to conventional non-reactive fluids. The underlying mechanism is described by a simplified double-film model: heat is absorbed as chemical energy in an endothermic film near the heated wall, then transported by reaction-intensified turbulence, and finally releases in an exothermic film near the cold wall. Unsteady analysis further confirms the coupling between chemical reaction and turbulence, particularly the coherent structures. Beyond advancing thermal convection theory, the approach offers practical potential for low-temperature waste-heat recovery where reaction reversibility is maintained, and for the design of gaseous space thermal management system.</div></div>","PeriodicalId":11664,"journal":{"name":"Energy Conversion and Management","volume":"352 ","pages":"Article 121111"},"PeriodicalIF":10.9,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146033467","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}

{"title":"The influence of surface wettability on the thermal energy storage efficiency in phase change material containers","authors":"Wei Su ,&nbsp;Zhengtao Ai ,&nbsp;Bin Yang ,&nbsp;Wanxiang Yao","doi":"10.1016/j.enconman.2026.121108","DOIUrl":"10.1016/j.enconman.2026.121108","url":null,"abstract":"<div><div>Enhancing thermal energy storage efficiency is a critical challenge, yet<!--> <!-->the surface wettability of a phase change material container is<!--> <!-->often overlooked as<!--> <!-->a potential yet underexplored factor that may obviously influence<!--> <!-->heat transfer outcomes.<!--> <!-->Referencing<!--> <!-->spray-coated polytetrafluoroethylene and perfluoroalkoxy alkane<!--> <!-->as practical examples of<!--> <!-->wettability modification, this study employed a validated Computational Fluid Dynamics method to systematically analyze how surface contact angle (30°–150°) affected the energy storage process of paraffin in a rectangular enclosure.<!--> <!-->Quantitative<!--> <!-->results revealed a significant nonlinear relationship,<!--> <!-->identifying<!--> <!-->an optimal contact angle of 60°<!--> <!-->that<!--> <!-->maximized the melting speed<!--> <!-->and resulted in a peak liquid fraction increase of 22.9% at the 5-minute mark compared to other wetting conditions.<!--> <!-->Mechanistically, this enhancement arises because 60° struck a critical<!--> <!-->balance between maintaining sufficient solid–liquid contact area<!--> <!-->for conduction<!--> <!-->and promoting efficient buoyancy-driven convection,<!--> <!-->whereas<!--> <!-->strongly wetting (30°) and non-wetting (150°) surfaces led to degradation due to constrained fluid motion and reduced heat transfer area, respectively.<!--> <!-->Although<!--> <!-->this effect diminished in later stages as<!--> <!-->global<!--> <!-->natural convection became dominant,<!--> <!-->the initial boost is vital.<!--> <!-->These findings<!--> <!-->demonstrate<!--> <!-->that surface wettability represents a potential cost-effective strategy for<!--> <!-->fine-tuning<!--> <!-->thermal performance,<!--> <!-->providing specific design guideline<!--> <!-->for applications where space is constrained or a rapid initial thermal response is critical.</div></div>","PeriodicalId":11664,"journal":{"name":"Energy Conversion and Management","volume":"352 ","pages":"Article 121108"},"PeriodicalIF":10.9,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146033478","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}

{"title":"Reliable quantification of liquid oxygenated products in CO2/CH4 plasma-catalytic conversion","authors":"Noelia Merino ,&nbsp;Maria Mikhail ,&nbsp;Xavier Duten ,&nbsp;Michael Tatoulian ,&nbsp;Stéphanie Ognier","doi":"10.1016/j.enconman.2026.121115","DOIUrl":"10.1016/j.enconman.2026.121115","url":null,"abstract":"<div><div>The direct conversion of CO₂ and CH₄ into oxygenated products via plasma catalysis offers a promising route for biogas valorization, generating molecules usable as fuels or fuel additives, or convertible into energy carriers. However, many studies lack rigor in the quantification of oxygenate selectivity, often leading to overestimations and misleading conclusions regarding catalyst performance and energy efficiency. Typically, gaseous products are analyzed online, while liquid products are collected and analyzed offline. Oxygenate selectivity is often estimated indirectly by subtracting selectivities of other carbon products from 100%, a method that lacks accuracy and tends to overestimate performance. This work highlights the need for accurate and reliable analytical approaches to provide a realistic assessment of plasma-assisted CO₂ and CH₄ conversion and guide future research. An improved experimental setup is proposed, keeping all products in the gas phase using a heated transfer line and enabling direct online quantification by gas chromatography directly after the reactor. This approach minimizes errors from incomplete condensation and indirect calculations, achieving a carbon balance close to 95%. Beyond analytical considerations, the conversion of CO₂ and CH₄ into oxygenated products by plasma catalysis remains a challenge. Results indicate that while catalysts enhance overall conversion, their effect on oxygenate selectivity is limited. These findings suggest that future work should focus on tailoring plasma conditions rather than solely on catalyst optimization. Overall, this study emphasizes the importance of robust analytical methods as a foundation for better understanding reaction mechanisms and for guiding future research on energy conversion by plasma catalysis.</div></div>","PeriodicalId":11664,"journal":{"name":"Energy Conversion and Management","volume":"352 ","pages":"Article 121115"},"PeriodicalIF":10.9,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146075356","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}

{"title":"Mechanistic insights into interfacial water–gas transport for proton exchange membrane fuel cells: From microstructure to macroscale performance","authors":"Guofu Zou ,&nbsp;Kangjun Duan ,&nbsp;Ke Chen ,&nbsp;Wenshang Chen ,&nbsp;Ben Chen","doi":"10.1016/j.enconman.2026.121081","DOIUrl":"10.1016/j.enconman.2026.121081","url":null,"abstract":"<div><div>Effective water and gas management enhances proton exchange membrane fuel cell (PEMFC) performance, with interfacial studies of membrane electrode assembly (MEA) being paramount to this effort. This study employed the lattice Boltzmann method (LBM) to analyze how compression pressure and MEA interface structure influence liquid water and oxygen transport within PEMFCs. Results demonstrate that lateral liquid water diffusion occurs throughout all MEA layers. At the catalyst coated membrane (CCM) − microporous layer (MPL) interface, pore compression limits water penetration into MPL cracks through lateral diffusion. The accumulation of interfacial water is governed by the number and morphology of MPL cracks: pressure cracks exhibit poorer water collection capability than dry cracks, whereas combined cracks improve water connectivity inside the MPL. However, lateral diffusion within MPL cracks also relieves pressure, thereby impeding water breakthrough toward the gas diffusion layer (GDL) At the MPL-GDL interface, lateral diffusion is controlled by the transition layer’s contact angle and porosity—higher hydrophobicity and lower porosity suppress lateral water movement. Furthermore, oxygen transport to the catalyst layer is affected by lateral water diffusion, saturation distribution across layers, and interface geometry, while the amount of water expelled into flow channels governs the extent of CCM flooding. The established structure-performance correlation not only advances our understanding of interface design but also provides a foundation for its optimization through deep learning. The fundamental insights gained will directly inform the design of MEA, specifically to mitigate mass transport losses at high current density in PEMFC.</div></div>","PeriodicalId":11664,"journal":{"name":"Energy Conversion and Management","volume":"352 ","pages":"Article 121081"},"PeriodicalIF":10.9,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145976435","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}

{"title":"Feasibility and performance analysis of a solar photovoltaic park for an industrial City","authors":"Nawaz Ahmad ,&nbsp;Muhannad Al Zadjali ,&nbsp;Afzal Husain ,&nbsp;Nasser Al-Azri ,&nbsp;Abdullah Al-Janabi","doi":"10.1016/j.enconman.2026.121144","DOIUrl":"10.1016/j.enconman.2026.121144","url":null,"abstract":"<div><div>This study provides the site-specific feasibility, optimal design, and detailed PVsyst performance analysis of a 100 MWp solar PV plant for Suhar Industrial City (SIC), Oman. It is notable for its industrial load matching in a high-irradiance MENA region, which has limited utility-scale case studies. It evaluates both the technological and commercial viability of deploying a utility-scale solar PV system to offset the industrial city’s energy demands partially. An optimally designed 100 MWp solar PV park consisting of more than 174,432 modules was found capable of supplying up to 40% of SIC’s annual energy demands in the year 2021. The system demonstrated high efficiency and reliability, achieving an average performance ratio (PR) of 84.9% for a fixed monofacial PV system at a Levelized Cost of Energy (LCOE) of $0.04–0.06/kWh, significantly below peak Cost Reflective Tariff (CRT) rates of $0.13/kWh. Moreover, energy production could reach up to 180,338 MWh per year using PV modules rated at 575 W and inverters rated at 250 kW. Additionally, it was observed that fixed-tilt bifacial systems outperformed fixed-tilt monofacial systems, delivering approximately 5.5% higher energy yields. The study also assessed PV modules with tracking systems to maximize energy production, and a noticeable increase of approximately 15% in energy yield was observed compared to fixed-tilt configurations. However, this increase was on the lower side of the typical gain from dual-axis tracking systems. This modest increase is attributed to the higher level of solar irradiation and ambient temperature at the selected site, highlighting the need for a detailed economic analysis to assess the tradeoffs. Of the four tested configurations using PVsyst, the fixed bifacial configuration showed the highest PR at 84%.</div></div>","PeriodicalId":11664,"journal":{"name":"Energy Conversion and Management","volume":"352 ","pages":"Article 121144"},"PeriodicalIF":10.9,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146075357","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}

{"title":"Experimental study on thermal performance enhancement of heat pipes based on grooved condensation surface with hybrid wettability","authors":"Haikang Chen ,&nbsp;Haidong Xie ,&nbsp;Yijie Chen ,&nbsp;Xin Wu ,&nbsp;Haixu Teng ,&nbsp;Chen Li ,&nbsp;Wei Chang","doi":"10.1016/j.enconman.2026.121141","DOIUrl":"10.1016/j.enconman.2026.121141","url":null,"abstract":"<div><div>Heat pipes are commonly utilized in various energy systems owing to their excellent heat transfer performance. The introduction of dropwise condensation (DWC) within the heat pipe is a promising way to further enhance the thermal performance significantly. However, the departure of unique discrete condensing droplets highly depends on the orientation and the dynamic wettability of condensing surfaces, which brings new challenges to the DWC enhanced heat pipe technologies. In this work, a condensation surface with periodic superhydrophilic grooves and hydrophobic ridges was proposed to address the orientation dependency of the DWC inside the heat pipe. A visualization experimental system for flat heat pipes was developed to investigate the phase change dynamics and the thermal performance. Results indicate that the periodic superhydrophilic grooves optimize the sizes of condensing droplets. Under the Laplace pressure induced by the wettability difference, the condensing droplets are rapidly removed by the superhydrophilic grooves, achieving a 62% reduction in condensation thermal resistance compared to conventional heat pipes at 0°. Compared to the uniform hydrophobic surface, the droplet departure radius and growth cycle time on the hybrid wettability grooved surface were reduced by 51.9% and 10.6%, respectively, at 90°. The corresponding condensation thermal resistance and evaporation thermal resistance of the hybrid wettability grooved surface were reduced by 45% and 17%, respectively, compared to those of the conventional grooved surface. Furthermore, the effective thermal conductivity of the proposed heat pipe was enhanced by 117.5% and 54% at inclination angles of 0° and 90°, respectively, compared to the conventional grooved heat pipe at 60 W. The optimal filling ratio for the proposed heat pipe is revealed to be 18%-25% at an inclination angle of 90° and 42% at an inclination angle of 0°. This work demonstrates promising solutions in enhancing the current thermal performance of heat pipes with and without the assistance of gravity, providing new guidance for advancing DWC enhancement within the closed two-phase devices.</div></div>","PeriodicalId":11664,"journal":{"name":"Energy Conversion and Management","volume":"352 ","pages":"Article 121141"},"PeriodicalIF":10.9,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146075358","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}

{"title":"Hydrogen-driven smart energy districts in hot climates: Coupling passive, active, and water synergies for net-zero carbon cities","authors":"Niima Es-sakali ,&nbsp;Imad Ait Laasri ,&nbsp;Houda Er-retby ,&nbsp;Mohamed Oualid Mghazli","doi":"10.1016/j.enconman.2026.121088","DOIUrl":"10.1016/j.enconman.2026.121088","url":null,"abstract":"<div><div>Hot-climate cities face increasing challenges in achieving resilient pathways toward net-zero carbon emissions while ensuring thermal comfort, energy security, and resource efficiency. This study introduces a hydrogen-integrated net-zero energy district framework that couples passive building design strategies, active energy systems, and water reuse measures with a district-scale hydrogen energy hub. Using a developed open-source hydrogen simulation model (H₂UrbanPlus), a newly planned district of 22 residential buildings is simulated under five design scenarios combining photovoltaics, passive shading, green roofs, and hydrogen-based storage. Results show that hydrogen plays a pivotal role in enabling seasonal balancing and resilience: district self-sufficiency rises by up to 85.6%, annual carbon dioxide emissions are reduced by 159 tonnes annually, and the system achieves near-carbon neutrality. Techno-economic evaluation demonstrates that hydrogen integration, when coupled with urban passive and water-energy synergies, lowers the effective levelized cost of electricity and improves the net present value of district investments. By providing a first district-scale co-simulation of passive, active, hydrogen, and water-recovery systems in a semi-arid hot-climate context, this study delivers new quantitative evidence on the role of hydrogen-enabled energy hubs in supporting resilient, low-carbon, and self-sufficient urban districts, offering actionable insights for planners and policymakers shaping future net-zero and hydrogen-transition strategies.</div></div>","PeriodicalId":11664,"journal":{"name":"Energy Conversion and Management","volume":"352 ","pages":"Article 121088"},"PeriodicalIF":10.9,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146075291","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}

{"title":"Multi-objective optimization and comprehensive thermal-economic analysis: Development of a new liquid CO2 energy storage system integrating LNG cold source and CO2-based mixtures","authors":"Xiaojian Wang ,&nbsp;Qiwen Sun ,&nbsp;Jinchen Cao ,&nbsp;Hao Zhou","doi":"10.1016/j.enconman.2026.121086","DOIUrl":"10.1016/j.enconman.2026.121086","url":null,"abstract":"<div><div>This study proposes a novel liquid carbon dioxide energy storage system (LCES) designed to mitigate the intermittency impact of renewable energy generation on the power grid. The system combines high energy storage density (EVR) with high round-trip efficiency (RTE), showing promising prospects for future energy management and system integration. LCES systems typically face challenges related to low condensation efficiency and incomplete working fluid liquefaction. To address these issues, the proposed LNG-LCES-ORCE system integrates external LNG cold energy, a two-stage Organic Rankine Cycle (TS-ORC) subsystem, and a cold energy storage subsystem (CESS). It innovatively employs a mixed working fluid approach to simultaneously enhance CO₂ liquefaction efficiency on both low- and high-pressure sides. The CESS configuration enables the overall system to flexibly and efficiently utilize cold energy throughout the day. Comprehensive analyses of system performance and economic viability were conducted through mathematical and economic modeling. Additionally, exergy analysis identified components requiring improvement. Finally, a multi-objective optimization using a genetic algorithm was performed to achieve optimal system performance. The results indicate that the proposed system attains an Overall-System-RTE of 92.047%, an EVR of 12.221 kWh/m³, and a levelized cost of electricity (LCOS) of 0.1018$/kWh. Compared to other LCES systems, the LNG-LCES-ORCE system demonstrates superior performance and economic benefits. It should be noted that the LNG cold energy is treated as an externally available resource in this study. Therefore, direct performance comparisons with systems that account for cold energy input differently are not appropriate. The findings suggest that this system can play a vital role in energy management and balancing power output.</div></div>","PeriodicalId":11664,"journal":{"name":"Energy Conversion and Management","volume":"352 ","pages":"Article 121086"},"PeriodicalIF":10.9,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146014982","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}

{"title":"Statorless mixed flow turbine for transonic pulsating inflow","authors":"Lukas Benjamin Inhestern ,&nbsp;Dieter Peitsch ,&nbsp;Guillermo Paniagua","doi":"10.1016/j.enconman.2026.121079","DOIUrl":"10.1016/j.enconman.2026.121079","url":null,"abstract":"<div><div>Effective harvesting of power from high speed highly transient inflows such as the outflow of rotating detonation combustors (RDCs) is key to achieving their promised cycle efficiency step jump. To increase power density and efficiency simultaneously, a concept that can directly ingest transonic outflow, addressing the choking is needed, i.e. without additional transition elements. A new statorless design was assessed using a comprehensive approach to quantify all contributions to loss generation in transient flows, locally and globally. The turbine rotor was designed under steady flow conditions with a genetic algorithm. The comparison of power and loss generation between steady and unsteady flow results shows that a design methodology under steady-state conditions is suitable to characterize the performance of different designs. Three design families were further assessed under highly transient transonic conditions including traveling shock waves with a relative total pressure amplitude of 149.6 % around the mean value and inflow angle variations from −26.5 deg to + 51.8 deg. The oblique shock impinging on the pressure side (PS) of the turbine augments the shaft power extraction. When the oblique shock reflects between the pressure side and suction side (SS), its strength diminishes. This paper provides design guidelines on efficient turbine work extraction from the shocks emanating from detonation combustors.</div></div>","PeriodicalId":11664,"journal":{"name":"Energy Conversion and Management","volume":"352 ","pages":"Article 121079"},"PeriodicalIF":10.9,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146014984","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}