Energy Storage and Saving最新文献

{"title":"China’s role in scaling up energy storage investments","authors":"Lei Bian","doi":"10.1016/j.enss.2023.03.002","DOIUrl":"https://doi.org/10.1016/j.enss.2023.03.002","url":null,"abstract":"<div><p>Accelerating the planning and development of a new power system that is more renewable energy-based is a strategic priority of achieving “dual carbon” goals (peaking carbon emissions before 2030 and becoming carbon neutral before 2060) in China. The large-scale development of energy storage technologies will address China’s flexibility challenge in the power grid, enabling the high penetration of renewable sources. This article intends to fill the existing research gap in energy storage technologies through the lens of policy and finance. Results indicate that policy uncertainties in renewable energy might undermine domestic investor confidence in energy storage technologies, while insufficient economic incentives may crowd out private sector participation. Drawing on international best practices, blended concessional finance, supported by development partners, can play a significant role in closing energy storage financing gaps in China and in countries of the Belt and Road Initiative (BRI). To deliver on China’s domestic and international climate commitments, this article makes three policy recommendations: (1) moving forward with a carbon pricing agenda that incentivizes energy storage investments in China; (2) tapping the potential of the domestic capital market to close financing gaps for novel energy storage technologies; (3) scaling up energy storage supply chains in BRI countries through multilateral cooperation.</p></div>","PeriodicalId":100472,"journal":{"name":"Energy Storage and Saving","volume":"2 2","pages":"Pages 415-420"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50192835","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of active and passive equipment for advanced pressurized water reactor on thermal hydraulic and source term behavior in severe accidents","authors":"Jishen Li ,&nbsp;Bin Zhang","doi":"10.1016/j.enss.2022.11.001","DOIUrl":"https://doi.org/10.1016/j.enss.2022.11.001","url":null,"abstract":"<div><p>Extensive studies have been carried out on the behavior of core degradation and fission products of common pressurized water reactors (PWRs). However, few of them have investigated the relationship between thermal hydraulic and fission product behavior in advanced passive PWRs. Due to the impact of thermal hydraulic behaviors in different accident sequences on the release and transportation of fission products, an integrated severe accident analysis (ISAA) code with highly coupled thermal hydraulic and source term calculations is required to simultaneously analyze thermal hydraulic and source term behavior. For advanced passive PWRs, important safety systems that may affect the behavior of the core and fission products should be considered. It is therefore necessary to simulate the thermal hydraulic and fission product behavior of advanced passive PWRs. In this study, the ISAA code is adopted to simulate the occurrence of a hypothetical double ended cold leg LBLOCA of HPR1000 in three scenarios of equipment failure. The results show that the high-temperature fuel rods and cladding materials exhibit delayed failure at the lower position of the active core, whereas earlier failure at higher position during the reflooding. Active and passive equipment affects fuel temperature, the oxidation conditions of the fuel, the interaction of fission products and structural materials, and the state of the fuel, thereby affecting the release of fission products in the fuel. HPR1000 only relies on passive equipment to relieve the core degradation in severe accidents, realize the in-vessel retention of melt, and eliminate the ex-vessel release possibility of fission product. It is hoped that the results can provide references for HPR1000 to formulate the severe accident management guidelines (SAMG).</p></div>","PeriodicalId":100472,"journal":{"name":"Energy Storage and Saving","volume":"2 1","pages":"Pages 392-402"},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49883732","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of assembly pressure on the performance of proton exchange membrane fuel cell","authors":"Zhuo Zhang,&nbsp;Wen-Quan Tao","doi":"10.1016/j.enss.2023.02.001","DOIUrl":"https://doi.org/10.1016/j.enss.2023.02.001","url":null,"abstract":"<div><p>The assembly force is a crucial factor in the process of proton exchange membrane fuel cell (PEMFC) stacking, and has significant effects on the fluid flow, mass transfer, and water and thermal management, which affect the fuel cell performance. In this study, from the most deformable component, the gas diffusion layer (GDL), combining with a finite-element analysis, and computational fluid dynamic method, the impact of the assembly force on a single-channel PEMFC is analyzed. A nonlinear stress–strain curve obtained from a microanalysis is creatively introduced into the two-dimensional compression model. The gas diffusion coefficient in the three-dimensional model is also obtained from the microscopic simulation. The simulated effective oxygen diffusion coefficient of the compressed GDL is approximately 0.86 times the Bruggemann estimated value. When the contact resistance is ignored, the output voltage at 2.5 MPa is decreased by approximately 15.4% at 1.7 A·cm⁻² compared with that at 0.5 MPa. After the contact resistance is considered, the effects of the assembly pressure on the cell performance (<em>V–I</em> curve) are qualitatively different. The pressure drop of the 2.5 MPa case is 20% higher than that of the 1.4 MPa case at 1.7 A cm⁻². O₂ is hard to flow into the region under the rib where the porosity and permeability are lower. The results indicate that both liquid water and membrane water contents increase when the assembly force increases. The effect of the assembly force on the temperature is also analyzed.</p></div>","PeriodicalId":100472,"journal":{"name":"Energy Storage and Saving","volume":"2 1","pages":"Pages 359-369"},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49884198","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Economic potentials of energy storage technologies in electricity markets with renewables","authors":"Yunpeng Xiao ,&nbsp;Wenqi Wu ,&nbsp;Xiuli Wang ,&nbsp;Ying Qu ,&nbsp;Jianglong Li","doi":"10.1016/j.enss.2022.10.004","DOIUrl":"https://doi.org/10.1016/j.enss.2022.10.004","url":null,"abstract":"<div><p>The increasing penetration of renewables in power systems urgently entails the utilization of energy storage technologies. As the development of energy storage technologies depends highly on the profitability in electricity markets, to evaluate the economic potentials for various types of energy storage technologies under the comprehensive market environment is of great significance. To this end, this study aims at conducting a quantitative analysis on the economic potentials for typical energy storage technologies by establishing a joint clearing model for electric energy and ancillary service (AS) markets considering the operating features of energy storage systems (ESSs). Furthermore, a test system is adopted for numerical analysis that accurately represents for the real-world operation characteristics of power systems in China, with which the market prices, and operation schedules and profitability of ESSs are comparatively studied. The proposed methodology and results could provide beneficial references for the modifications on electricity markets and the development of ESSs towards the increasing penetration of renewables in power systems.</p></div>","PeriodicalId":100472,"journal":{"name":"Energy Storage and Saving","volume":"2 1","pages":"Pages 370-391"},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49884197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sustainable energy integration with energy storage and energy saving technologies: SDEWES special issue in 2021","authors":"Wenxiao Chu ,&nbsp;Neven Duić ,&nbsp;Qiuwang Wang","doi":"10.1016/j.enss.2022.12.001","DOIUrl":"https://doi.org/10.1016/j.enss.2022.12.001","url":null,"abstract":"<div><p>The 16th conference on Sustainable Development of Energy, Water and Environment Systems (SDEWES) has been successfully held on October 10−15, 2021 in Dubrovnik, Croatia. The Chair as well as the initiator of SDEWES series, Prof. Neven Duic, who is the professor in the University of Zagreb, Croatia, serves as the associate editor of <em>Energy Storage and Saving</em> (ENSS), and this special issue (SI) is the first-time collaboration between SDEWES and ENSS. A total of 6 papers were selected for publication. This SI in ENSS mainly addressed the topics related to sustainable energy application (e.g., solar photovoltaic, wind and biomass energy), residual reuse, energy saving of direct heating and cooling, thermal energy storage integration and heat exchanger optimization. The series of SDEWES conference provides a good platform to discuss the most recent development in advanced technologies, methods for distinguished researchers in the field of sustainable energy utilization, energy exploitation, energy policy, etc., which has rich experience on soliciting high-quality manuscript. ENSS, which is an international, peer-reviewed Open Access journal, has established the SI for the 17th SDEWES in 2022, and will go on to cooperate with the SDEWES series in 2023. Manuscripts are welcomed to the 18th SDEWES held in Dubrovnik, Croatia on September 24−29, 2023.</p></div>","PeriodicalId":100472,"journal":{"name":"Energy Storage and Saving","volume":"2 1","pages":"Pages 325-327"},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49883733","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Accelerating electron transport in Eosin Y by bidentately bridging on BaSnO3 for noble-metal-free photocatalytic H2 production","authors":"Jinwen Shi ,&nbsp;Huaiyu Lu ,&nbsp;Xing Kang ,&nbsp;Lulu Hou ,&nbsp;Feng Chen ,&nbsp;Yazhou Zhang ,&nbsp;Kang Chen ,&nbsp;Xiao Wang ,&nbsp;Xiangjiu Guan ,&nbsp;Lijing Ma","doi":"10.1016/j.enss.2022.10.003","DOIUrl":"https://doi.org/10.1016/j.enss.2022.10.003","url":null,"abstract":"<div><p>The separation and transport of photogenerated carriers is regarded as a curial factor in photocatalytic H₂ production. As known in solar cells and photoelectron-chemistry, to strengthen the electron conduction for effective utilization of carriers, the electron transport material (ETM) is widely applied. Herein, inspired by the function of ETM, we adopted barium stannate (BaSnO₃, labeled as BSO) as an excellent ETM which had the merits of high electron mobility, suitable conduction band position and simple preparation, to adjust the carrier kinetics of dye Eosin Y (EY)-sensitized photocatalytic system. Detailly, the photocatalytic system with the spatial separation sites of photogenerated carriers excitation and water reduction reaction was elaborately constructed, that was, dye EY-sensitized BSO (EY/BSO) for photocatalytic H₂ production. The photocatalytic H₂-production rate of EY/BSO (257 μmol·h⁻¹·g_EY⁻¹) in the absence of noble metals was 28.6 times higher than that of single EY (∼9 μmol·h⁻¹·g_EY⁻¹) under visible-light irradiation. With systematic and comprehensive characterizations, the formed electron transport channel by the bidentate bridging of EY on BSO could accelerate the transfer of photogenerated electrons from EY to BSO, promoting the effective separation of photogenerated carriers for the enhanced photocatalytic performance. Moreover, the water reduction reaction for H₂ production proceeded on the surface of BSO that acted as the H₂-evolution cocatalyst, avoiding the use of high-cost noble metals. Furthermore, based on the well-proved ETM-based concept in the EY/BSO system, La-doped BaSnO₃ (LBSO) with better electron transport ability was adopted to construct EY/LBSO system (344 μmol·h⁻¹·g_EY⁻¹) which showed better photocatalytic activity than EY/BSO.</p></div>","PeriodicalId":100472,"journal":{"name":"Energy Storage and Saving","volume":"2 1","pages":"Pages 328-335"},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49883734","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Numerical prediction of spatio-temporal frosting patterns of curved surface considering varying working parameters","authors":"Xue Liu,&nbsp;Xiaojun Dong,&nbsp;Shaohang Yan,&nbsp;Yu Hou,&nbsp;Tianwei Lai","doi":"10.1016/j.enss.2022.10.002","DOIUrl":"https://doi.org/10.1016/j.enss.2022.10.002","url":null,"abstract":"<div><p>Accurate numerical prediction of frosting patterns is essential for the efficient layout and timing defrosting of heat exchangers under frosting conditions. In this study, a numerical model is developed to predict the spatio-temporal frosting habits on curved surfaces in combination with the correlations of frost density and thermal conductivity. In the model, frost melting is considered. After verification, the frosting and heat transfer characteristics along the flow path are investigated under various structural and operating conditions. Frost thickness along the path is mainly affected by the cooling surface temperature, while the heat and mass transfer rates are strongly correlated with the humidity ratio. The proportions of latent heat and sensible heat are distributed more unevenly in parallel flow case than in counter flow case. Frost deposition is facilitated by a smaller radius of curvature of the cooling surface. More uniform frosting characteristics along the path and smaller heat transfer obstruction are presented with a smaller length-to-height ratio of the flow path.</p></div>","PeriodicalId":100472,"journal":{"name":"Energy Storage and Saving","volume":"2 1","pages":"Pages 348-358"},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49884195","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Numerical investigation of heat transfer performance and bubble behavior of nucleate pool boiling in a confined space under rolling conditions","authors":"Jianjie Cheng,&nbsp;Jiangwei Sun,&nbsp;Weihao Ji,&nbsp;Yu Dong,&nbsp;Wei Li,&nbsp;Yurong Chen","doi":"10.1016/j.enss.2022.10.001","DOIUrl":"https://doi.org/10.1016/j.enss.2022.10.001","url":null,"abstract":"<div><p>Nucleate pool boiling process is widely used in heat exchangers because of its excellent heat transfer performance. With the gradual increase of applications, more and more equipments work in a non-static state, but there is little research under rolling conditions. Therefore, it is necessary to investigate the influence of rolling motion on the nucleate pool boiling process. In this study, a numerical investigation of the nucleate pool boiling process under static and rolling conditions is performed based on the volume-of-fluid (VOF) method. Physical fields and phase distribution under static state and rolling motion are compared to investigate the effect of rolling motion on the nucleate pool boiling process. The results show that rolling motion greatly influences the bubble behavior and void fraction owing to the differences between flow fields. The void fraction decreased by 11.84%, 48.82%, and 56.87% as the maximum rolling angle increased from 15° to 45°, and by 11.84%, 22.27%, and 21.81% as the rolling period increased from 1 s to 3 s. The void fraction decreased by 11.84%, 48.82%, and 56.87% as the maximum rolling angle increased from 15° to 45°. The heat transfer coefficients of different cases are compared, and it is found that the effects of rolling motion on heat transfer coefficients can be ignored.</p></div>","PeriodicalId":100472,"journal":{"name":"Energy Storage and Saving","volume":"2 1","pages":"Pages 336-347"},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49884194","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hydrogen recovery from big-scale porous metal hydride (MH) reactor: impact of pressure and MH-thermophysical properties","authors":"Atef Chibani ,&nbsp;Slimane Merouani ,&nbsp;Aissa Dehane ,&nbsp;Cherif Bougriou","doi":"10.1016/j.enss.2022.07.005","DOIUrl":"https://doi.org/10.1016/j.enss.2022.07.005","url":null,"abstract":"<div><p>An advanced ANSYS FLUENT-based model was developed for hydrogen recovery from a multi-tubular fixed-bed metal hydride (MH) reactor of large-scale design. The model was firstly validated by comparing its results to specific experimental data. Mass and heat transfer processes inside the fixed bed were investigated for various pressures and thermochemical characteristics of the MH (thermal conductivity, porosity and reaction parameters). The findings were reported as average, local and spatial changes in the metal’s bed temperature and hydrogen content. During the initial stage of the endothermic desorption (t&lt;100 s), the bed temperature dropped dramatically in all cases . During this time, there was a massive emission of hydrogen. The bed temperature was then raised due to the reactor’s external convective heating, while the hydrogen release continued until the MH was completely dehydrided. The dehydrogenation rate of the MH was enhanced when the discharge pressure was raised. Furthermore, some other characteristics of the MH, i.e., porosity, thermal conductivity, desorption rate constant and activation energy, significantly impacted the resulting mass and heat fluxes inside the bed material.</p></div>","PeriodicalId":100472,"journal":{"name":"Energy Storage and Saving","volume":"1 4","pages":"Pages 259-271"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772683522000267/pdfft?md5=ecb206bc295e046a97464d42afa82bc8&pid=1-s2.0-S2772683522000267-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72073061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced photothermal conversion and thermal conductivity of phase change n-octadecane microcapsules shelled with nano-SiC doped crosslinked polystyrene","authors":"Kuan Zhao ,&nbsp;Jifen Wang ,&nbsp;Huaqing Xie ,&nbsp;Zhixiong Guo","doi":"10.1016/j.enss.2022.09.003","DOIUrl":"https://doi.org/10.1016/j.enss.2022.09.003","url":null,"abstract":"<div><p>Microcapsules incorporating phase change material n-octadecane (ODE) shelled with crosslinked polystyrene (CLPS) were prepared via the suspension polymerization. SiC nanoparticles (nano-SiC) were employed to modify the shell to improve the heat transfer and photothermal conversion of the microcapsules. The scanning electron microscopic analysis revealed the microcapsules of a general spherical shape. The surface components and chemical composition of the microcapsule samples were evaluated by the energy-dispersive X-ray and Fourier transform infrared spectroscopy, confirming that the nano-SiC have been embedded in the CLPS shell. Results show that the microcapsule sample with 1.25 wt.% nano-SiC (denoted as MPCM3) exhibits the best heat property among the four kinds of samples prepared with various nano-SiC dosages, and all the nano-SiC doped samples have improved thermal conductivity and photothermal conversion as compared to the microcapsule sample without doping (denoted as MPCM1). Compared to the MPCM1, the thermal conductivity of the MPCM3 is increased by 65.3%, reaching 0.124 ± 0.005 W·m⁻¹·K⁻¹. The MPCM3 has excellent thermal stability as well. Differential scanning calorimetry examination shows that the MPCM3 has higher melting and crystallization enthalpies than the MPCM1, achieving 106.8 ± 0.3 J·g⁻¹ and 104.9 ± 0.2 J·g⁻¹, respectively. In the photothermal conversion experiments, the MPCM3 exhibited great photothermal conversion capability, with a 54.91% photothermal conversion efficiency, which is 145.68% higher than that of the MPCM1.</p></div>","PeriodicalId":100472,"journal":{"name":"Energy Storage and Saving","volume":"1 4","pages":"Pages 284-292"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772683522000309/pdfft?md5=b6c105d9b2b9e05a95ae4cdc3db94a81&pid=1-s2.0-S2772683522000309-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72073059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}