Energy Conversion and Management最新文献

{"title":"Engineering a Galinstan-based ferromagnetic fluid for heat management","authors":"J.P. Maganinho ,&nbsp;R.M.C. Pinto ,&nbsp;V. Andrade ,&nbsp;B.G.F. Eggert ,&nbsp;C. Frommen ,&nbsp;J.P. Araújo ,&nbsp;J.O. Ventura ,&nbsp;J. Oliveira ,&nbsp;A.L. Pires ,&nbsp;J.H. Belo","doi":"10.1016/j.enconman.2024.119130","DOIUrl":"10.1016/j.enconman.2024.119130","url":null,"abstract":"<div><div>The development of increasingly smaller electronic devices brings on heat dissipation challenges, which can severely hinder their performance. Consequently, there is a critical need to maintain the working temperature of these devices at optimal values. At room temperature, the versatile design and adaptability of fluidic thermal switches makes them an auspicious solution. In this work, the large heat conductivity and magnetic material compatibility of Galinstan motivated the production of a novel ferromagnetic fluid. Through mechanical alloying within an inert atmosphere, we embedded Ni microparticles in a Galinstan matrix, which provided a liquid metal with a ferromagnetic behavior. This fluid is suitable for a wide range of applications in thermal management. Here, we experimentally demonstrate that a Galinstan-based mixture containing 2<em>.</em>6 wt% of Ni can serve as heat exchange medium in a magnetically activated fluidic thermal switch device. This mixture establishes an optimal thermal bridge between heat source and sink, enabling heat dissipation from the source. This effect intensifies with the device operating frequency, reaching a maximum temperature span of 19<em>.</em>8 % and a maximum switching ratio of 1.26<em>.</em> These results demonstrate the potential of the developed fluid to be integrated into fluidic technologies for temperature control of electronic components.</div></div>","PeriodicalId":11664,"journal":{"name":"Energy Conversion and Management","volume":null,"pages":null},"PeriodicalIF":9.9,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142531764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Process engineering analysis of LED-driven microalgal growth and lipid lodgement dynamics through kinetic modelling and illumination energetic approach","authors":"Neellohit Sarkar,&nbsp;Suman Dhar,&nbsp;Ramkrishna Sen","doi":"10.1016/j.enconman.2024.119127","DOIUrl":"10.1016/j.enconman.2024.119127","url":null,"abstract":"<div><div>Photosynthetic world of microalgae has been briefly explored for possible solution(s) in nexus of energy, environmental and healthcare challenges by zeroing in on biomass build-up and lipid lodgement as responses of the conducted study. Illumination engineering was employed to measure impacts of variations in terms of photosynthetic photon flux density (PPFD) and photoperiod of low kelvin colour temperature (KCT) white, blue, and red light emitting diodes (LEDs) on <em>Chlorella vulgaris.</em> Cultivation was tracked through responses in terms of dry cell weight (DCW) for biomass build-up, and as %DCW for lipid lodgement. Two-way analysis of variance (ANOVA) with interaction (type III) and effect size (η²) metric helped in understanding their statistical and practical significance respectively. The best biomass build-up (1.41 ± 0.03 g/L) was observed at 100 PPFD and 24:0h photoperiod under red spectrum and highest lipid lodgement (34.36 ± 1.45 %DCW) was obtained at 150 PPFD and 8:16 h photoperiod under blue spectrum. To bridge the lacuna in growth kinetics literature, a novel reparameterization of Von Bertalanffy model was presented. Kinetic parameters for the best possible responses under each LED setting were fitted into the model with trust region reflective (TRF) algorithm. Akaike information criteria corrected (AICc) revealed the proposed “Modified Von Bertalanffy model” to be the best out of five models (Modified Von Bertalanffy, Modified Logistic, Modified Gompertz, Modified Richards and Modified Baranyi). The duration of exponential phase was determined from the rate of change of maximum specific growth rate (<span><math><msub><mi>μ</mi><mi>m</mi></msub></math></span>). The <span><math><msub><mi>μ</mi><mi>m</mi></msub></math></span> values and the duration of exponential phase were correlated with the responses, hinting at future directions in understanding the kinetic studies of growth induced (during exponential phase) and stress induced (post exponential phase) cultivation. Based on the lux requirements for best possible response, the projected energy savings of various models were compared using company data sheets from Broadcom, Seoul Semiconductor, and Cree.</div></div>","PeriodicalId":11664,"journal":{"name":"Energy Conversion and Management","volume":null,"pages":null},"PeriodicalIF":9.9,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142531771","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":"Direct air capture integration with low-carbon heat: Process engineering and power system analysis","authors":"Aniruddh Mohan ,&nbsp;Fangwei Cheng ,&nbsp;Hongxi Luo ,&nbsp;Chris Greig ,&nbsp;Eric Larson ,&nbsp;Jesse D. Jenkins","doi":"10.1016/j.enconman.2024.119136","DOIUrl":"10.1016/j.enconman.2024.119136","url":null,"abstract":"<div><div>Direct air capture (DAC) of carbon dioxide (CO₂) is energy intensive given the low concentration (<span><math><mo>&lt;</mo></math></span>0.1%) of CO₂ in ambient air, but offers relatively strong verification of removals and limited land constraints to scale. Lower temperature solid sorbent based DAC could be coupled on-site with low carbon thermal generators such as nuclear power plants. Here, we undertake a unique interdisciplinary study combining process engineering with a detailed macro-energy system optimization model to evaluate the system-level impacts of such plant designs in the Texas electricity system. We contrast this with using grid power to operate a heat pump to regenerate the sorbent. Our analysis identifies net carbon removal costs accounting for power system impacts and resulting indirect CO<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span> emissions from DAC energy consumption. We find that inefficient configurations of DAC at a nuclear power plant can lead to increases in power sector emissions relative to a case without DAC, at a scale that would cancel out almost 50% of the carbon removal from DAC. Net removal costs for the most efficient configurations increase by roughly 18% once indirect power system-level impacts are considered, though this is comparable to the indirect systems-level emissions from operating grid-powered heat pumps for sorbent regeneration. Our study therefore highlights the need for DAC energy procurement to be guided by consideration of indirect emission impacts on the electricity system. Finally, DAC could potentially create demand pull for zero carbon firm generation, accelerating decarbonization relative to a world without such DAC deployment. We find that DAC operators would have to be willing to pay existing or new nuclear power plants roughly $30–80/tCO₂ or $150–400/tCO₂ respectively, for input energy, to enable nuclear plants to be economically competitive in least cost electricity markets that do not have carbon constraints or subsidies for nuclear energy.</div></div>","PeriodicalId":11664,"journal":{"name":"Energy Conversion and Management","volume":null,"pages":null},"PeriodicalIF":9.9,"publicationDate":"2024-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142531758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Renewable-driven hybrid refrigeration system for enhancing food preservation: Digital twin design and performance assessment","authors":"Ehsan Baniasadi ,&nbsp;Ahmed Rezk ,&nbsp;Yetenayet Bekele Tola ,&nbsp;Abed Alaswad ,&nbsp;Muhammad Imran ,&nbsp;Paul Humphries","doi":"10.1016/j.enconman.2024.119165","DOIUrl":"10.1016/j.enconman.2024.119165","url":null,"abstract":"<div><div>This study presents a new method for sustainable cooling systems using a hybrid refrigeration system powered by hybrid renewable energy sources. The system comprises a modular unit of vertical wind turbines integrated with bio-photovoltaic films to provide sustainable energy. The hybrid refrigeration system combines evaporative and solar thermal-driven adsorption cooling systems. In addition, a finite volume of soil is proposed for thermal energy storage. Experimental data inform the development of a digital twin for an integrated system, soil thermophysical characteristics, wind turbine performance, and technical specifications for other system components. This sustainable cooling package is cost-effective and space-efficient, particularly in remote or off-grid locations. Notably, the evaporative cooler and chilled water coil contribute to a cooling effect of 20.4 kW, and solar power generation reaches 12.38 kW at an intensity of 1053 W/m². The annual electrical output averages 1.7 kW at a wind speed of 3.5 m/s. Under best conditions, wind power can surge to 7.99 kW at 9.88 m/s. The ratio of power generated by wind to solar energy ranges from 1.1 to 1.3. The system effectively meets a peak thermal energy demand of approximately 74 GJ/month, facilitated by solar collectors, underground thermal storage, and a renewable energy-fed auxiliary heater. This study paves the way for future techno-economic optimisation and advancements in sustainable energy solutions for remote cold storage facilities.</div></div>","PeriodicalId":11664,"journal":{"name":"Energy Conversion and Management","volume":null,"pages":null},"PeriodicalIF":9.9,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142531877","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Numerical study on carbon emissions and economics of a high temperature heat pump system for an industrial process","authors":"Hak Soo Kim,&nbsp;JeongMin Seo,&nbsp;Sunyoung Moon,&nbsp;Dong Ho Kim,&nbsp;Yujun Jung,&nbsp;Yoong Chung,&nbsp;Kong Hoon Lee,&nbsp;Chan Ho Song","doi":"10.1016/j.enconman.2024.119150","DOIUrl":"10.1016/j.enconman.2024.119150","url":null,"abstract":"<div><div>Research to achieve net-zero is actively being carried out. In industrial processes, large amounts of carbon are emitted to product thermal energy, and there is a growing interest in electrification technologies to reduce this. While electric heaters and heat pumps are representative technologies for electrification, research to determine which technologies can economically contribute to carbon reduction is necessary. In this study, transient model for a heat pump and thermal energy storage (TES) was developed, and the CO₂ emissions and economic feasibility were analyzed. When coupled with photovoltaic power and battery energy storage (BESS), it was found that the heat pump can reduce CO₂ emissions more economically than electric heater. Transient analysis was performed for the case of coupling TES with heat pump instead of BESS and it was found that CO₂ emissions vary from 276 to 231 g/kWh_th with and without the TES, respectively. When combining the heat pump and photovoltaic system with TES or BESS, the nominal levelized cost of heat to reach the same level of CO₂ emissions is 11.6 % higher for the BESS-coupled system. Up to certain level of CO₂ emissions, the TES-coupled system is economically viable, but minimum emissions can be achieved with the BESS-coupled system.</div></div>","PeriodicalId":11664,"journal":{"name":"Energy Conversion and Management","volume":null,"pages":null},"PeriodicalIF":9.9,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142531762","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":"Functional coupling hole transport and extraction units over BiVO4 for efficient solar-to-hydrogen conversion","authors":"Zemin Fu ,&nbsp;Yu Zhu ,&nbsp;Dongmei Qin ,&nbsp;Yan Yang ,&nbsp;Sheng Han ,&nbsp;Zhenbiao Dong","doi":"10.1016/j.enconman.2024.119153","DOIUrl":"10.1016/j.enconman.2024.119153","url":null,"abstract":"<div><div>Photoelectrochemical (PEC) water splitting based on BiVO₄ nanostructures is largely limited by the fast recombination of charge carriers and the low oxygen evolution reaction (OER) kinetics. To enhance PEC performance of BiVO₄, combining hole transport units and hole extraction units is a simple and effective methods. In this work, Co₃O₄ and NiFe layered double hydroxide (NiFe-LDH) were coupled to promote bulk-phase charge separation and solid–liquid interface transfer, which accelerated OER kinetics on surface of target photoanodes. Moreover, p-n heterojunction between BiVO₄ and Co₃O₄ suppressed charge recombination and promoted charge transfer, resulting in an effectively enhanced photocurrent density and applied bias photon to current efficiency (ABPE). To facilitate involvement of photogenerated holes in OER, BiVO₄/Co₃O₄ electrodes are coated with NiFe-LDH as a hole extraction layer using a straightforward chemical bath deposition (CBD) technique. Successful fabrication of NiFe-LDH with rich oxygen vacancies significantly improves transport of charge carriers and provides many activity sites on the electrode surface. The optimized BiVO₄/Co₃O₄/NiFe-LDH photoanode displayed a photocurrent density of 5.41 mA cm⁻² at 1.23 V_RHE with an ABPE of 1.08 % at 0.86 V_RHE under light. These values are approximately 4.66 and 8.30 times higher than those of BiVO₄ photoanodes. This study presents a powerful approach to enhance charge separation and transport in BiVO₄-based photoanodes by functionally coupling hole transport and extraction units, thereby enabling efficient solar-to-hydrogen conversion.</div></div>","PeriodicalId":11664,"journal":{"name":"Energy Conversion and Management","volume":null,"pages":null},"PeriodicalIF":9.9,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142531864","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":"Development of an integrated energy and thermal planner for a series hybrid off-road autonomous tracked vehicle","authors":"Atharva Ghate ,&nbsp;Anirudh Sundar ,&nbsp;Qilun Zhu ,&nbsp;Robert Prucka ,&nbsp;Miriam Figuero-Santos ,&nbsp;Morgan Barron","doi":"10.1016/j.enconman.2024.119163","DOIUrl":"10.1016/j.enconman.2024.119163","url":null,"abstract":"<div><div>Electrifying off-road vehicle powertrains enhances energy efficiency and auxiliary power generation but poses control challenges due to extreme temperatures, complex terrain, powerful cooling systems, and high-power demands. This paper presents the Integrated Energy and Thermal Planner (IETP), a unified approach to energy and thermal management for off-road series hybrid tracked vehicles. The IETP addresses challenges posed by extreme ambient temperatures, high-power demands, and complex non-linear thermal dynamics by integrating the control of thermal systems with energy planning. The synergistic operation of the ICE-Generator and thermal actuators reduces battery degradation by up to 29% compared to traditional separated energy and thermal management. Additionally, IETP improves fuel efficiency by at least 10% in power-demanding high-speed driving scenarios. Key contributions include the ’priority-speed’ formulation, which optimizes the ICE-Gen’s operating point in a computationally efficient manner, and a systematic sensitivity analysis to balance planning accuracy with hardware constraints. Real-time planner-in-the-loop application mitigates execution delays through a memory buffer and compensation strategy. Despite uncertainties in modeling and preview assumptions, the IETP demonstrates robustness, with future work aimed at further improving transient compensation and estimation routines. This integrated strategy enhances both the efficiency and durability of hybrid electric vehicles in extreme off-road environments.</div></div>","PeriodicalId":11664,"journal":{"name":"Energy Conversion and Management","volume":null,"pages":null},"PeriodicalIF":9.9,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142531869","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":"Reconfiguration of PV array for improved performance under different partial shading conditions using Roulette Barrel Shifter approach","authors":"Shivam Kushwaha ,&nbsp;Ranjeet Singh ,&nbsp;Ranjana Yadav ,&nbsp;Vinod Kumar Yadav ,&nbsp;Tanmay Yadav ,&nbsp;Shivam Singh","doi":"10.1016/j.enconman.2024.119151","DOIUrl":"10.1016/j.enconman.2024.119151","url":null,"abstract":"<div><div>This article proposes an innovative reconfiguration technique called Roulette Barrel Shifter (RBS) for Total Cross Tied (TCT) connected PV arrays. Inspired by a spinning roulette wheel and the barrel shifter from digital signal processing, it shifts or rotates input data bits by a number of bits. Unlike other methods, RBS does not require advanced maximum power point tracking devices, sensors, or complex switching mechanisms, making it more cost-effective. Simulation studies on 9 × 9 and 10 × 10 PV arrays under Partial Shading (PS) conditions, as well as experimental validation on a 5 × 5 array, demonstrate that RBS increases power by up to 15.45 % compared to TCT. The algorithm is also tested for scalability and adaptability on a large solar plant (4 MW, 2175 V, 25 × 750 PV array). For the first time, the article introduces a unique wiring loss (WL) performance metric using the k-means algorithm. Based on this metric, RBS is shown to reduce WL by up to 6.98 % compared to other recently published methods. Comparative analysis reveals that RBS reduces mismatch loss (ML) by up to 61.41 % compared to TCT, establishing its superiority over existing dynamic reconfiguration approaches in both performance and efficiency across various scales of solar arrays.</div></div>","PeriodicalId":11664,"journal":{"name":"Energy Conversion and Management","volume":null,"pages":null},"PeriodicalIF":9.9,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142531757","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":"Analysis of the CO2 + C2Cl4 mixture in high temperature heat pumps: Experimental thermal stability, liquid densities and cycle simulations","authors":"Ettore Morosini ,&nbsp;Michele Doninelli ,&nbsp;Gioele Di Marcoberardino ,&nbsp;Paolo Iora ,&nbsp;Mauro Riva ,&nbsp;Paolo Stringari ,&nbsp;Giampaolo Manzolini","doi":"10.1016/j.enconman.2024.119145","DOIUrl":"10.1016/j.enconman.2024.119145","url":null,"abstract":"<div><div>Transcritical heat pumps working with CO₂-based mixtures with a low-volatility dopant are found to achieve good performances in thermally integrated heat pumps, especially when sensible heat sources and heat sinks are considered. This paper introduces in literature tetrachloroethylene, C₂Cl₄, as CO₂-dopant for the mixture to be adopted as working fluid in high temperature heat pumps. To calibrate the thermodynamic model used in the cycle simulations, an experimental characterization on the mixture is proposed: liquid densities of the mixtures are measured, in a wide range of concentration, optimizing the binary interaction parameter of the Peng Robinson equation of state. Moreover, the thermal stability of pure C₂Cl₄ is experimentally evaluated, identifying the maximum allowable compressor outlet temperature between 200 °C and 250 °C, with a decomposition rate below 1 %/year if the fluid is kept at temperatures around 200 °C. Then, the potentialities of this very high temperature heat pump are assessed in spray dryer applications: a coefficient of performance around 3.38 is obtained for a conventional spray dryer plant, corresponding to 73 % of second law efficiency, considering an air flow heated from ambient temperature to 200 °C as the sink, while cooling the sensible heat source, available at 76 °C, below 30 °C. As term of comparison, the same system adopting propane, instead of the CO₂ + C₂Cl₄ mixture, would achieve a coefficient of performance and second law efficiency of 2.94 and 64 %, respectively.</div></div>","PeriodicalId":11664,"journal":{"name":"Energy Conversion and Management","volume":null,"pages":null},"PeriodicalIF":9.9,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142446964","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancement of the energy capture performance of oscillating water column (OWC) devices using multi-chamber multi-turbine (MCMT) technology","authors":"Peiwen Cong ,&nbsp;Dezhi Ning ,&nbsp;Bin Teng","doi":"10.1016/j.enconman.2024.119141","DOIUrl":"10.1016/j.enconman.2024.119141","url":null,"abstract":"<div><div>The advancement of marine renewable energy technology has led to increased demands on current marine energy devices, particularly in relation to the energy capture capacity of wave energy converters (WECs). Among WECs, oscillating water column (OWC) devices are considered highly promising. This study examines the potential for enhancing the wave energy capture of OWC devices through the utilization of multi-chamber multi-turbine (MCMT) technology. Unlike traditional single-chamber OWCs, MCMT OWCs consist of multiple chamber modules that can operate in coordination during different wave phases to optimize the wave energy utilization. The interplay of water column movements within various chamber modules is closely interconnected. By considering these coupling effects, a reciprocal relationship between the air pressure and air-flow movement in different chamber modules is established, and a numerical model is developed to assess the functional performance of three-dimensional MCMT OWCs of arbitrary geometric shapes using a higher-order boundary element method (HOBEM). The study focuses on representative MCMT OWC designs with annular or rectangular cross-sections. Two specific scenarios are investigated: an annular MCMT OWC integrated into the monopile foundation of an offshore wind turbine, and a rectangular MCMT OWC integrated into a barge-type breakwater. Detailed numerical analyses are conducted, revealing that dividing the chamber into multiple modules can convert sloshing-mode free-surface movement into separate piston-mode movements, thereby enhancing the wave energy capture. By utilizing suitable turbine parameters and chamber dimensions, the peak hydrodynamic efficiency of MCMT OWCs has the potential to exceed unity, surpassing that of single-chamber OWCs by a factor of three. Additionally, employing a low rotational speed for the air turbine in MCMT OWCs can result in a doubled effective frequency bandwidth compared to single-chamber OWCs. This bandwidth can be extended even further with an increase in the rotational speed. This study also suggests that designing chamber modules with identical cross-sectional shapes may not always be the most advantageous approach for maximizing the wave energy capture.</div></div>","PeriodicalId":11664,"journal":{"name":"Energy Conversion and Management","volume":null,"pages":null},"PeriodicalIF":9.9,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142442545","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}