Energy Storage and Saving最新文献

{"title":"The effects of industrial policymaking on the economics of low-emission technologies: the TRANSid model","authors":"Timo Gerres,&nbsp;José Pablo Chaves,&nbsp;Pedro Linares","doi":"10.1016/j.enss.2023.03.003","DOIUrl":"https://doi.org/10.1016/j.enss.2023.03.003","url":null,"abstract":"<div><p>Basic materials such as steel, cement, aluminium, and (petro)chemicals are the building blocks of industrialised societies. However, their production is extremely energy and emission intensive, and these industries need to decarbonise their emissions over the next decades to keep global warming at least below 2 °C. Low-emission industrial-scale production processes are not commercially available for any of these basic materials and require policy support to ensure their large-scale diffusion over the upcoming decades. The novel transition to industry decarbonisation (TRANSid) model analyses the framework conditions that enable large-scale investment decisions in climate-friendly basic material options. We present a simplified case study of the cement sector to demonstrate the process by which the model optimises investment and operational costs in carbon capture technology by 2050. Furthermore, we demonstrate that extending the model to other sectors allows for the analysis of industry- and sector-specific policy options.</p></div>","PeriodicalId":100472,"journal":{"name":"Energy Storage and Saving","volume":"2 3","pages":"Pages 513-521"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49884401","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":"Simulation and analysis of a peak regulation gas power plant with advanced energy storage and cryogenic CO2 capture","authors":"Na Wen,&nbsp;Hongbo Tan,&nbsp;Xiaoqiao Qin","doi":"10.1016/j.enss.2023.05.004","DOIUrl":"https://doi.org/10.1016/j.enss.2023.05.004","url":null,"abstract":"<div><p>Flexible gas power plants are subject to energy storage, peak regulations, and greenhouse gas emissions. This study proposes an integrated power generation system that combines liquid air energy storage (LAES), liquefied natural gas (LNG) cold energy utilization, gas power systems, and CO₂ capture and storage (CCS) technologies, named the LAES-LNG-CCS system. The off-peak electricity can be stored in liquid air. During the peak period, air and gas turbines generate supplementary electricity. Both LNG chemical energy and cold energy were considered: the former was used for gas power plants, and the latter was used for LAES regasification and CCS processes. Based on the thermodynamic analysis, we evaluated the effects of the recovery pressure, CCS pressure, and combustion temperature on the system power consumption and efficiency. The results demonstrated that the system recovery pressure, CCS pressure, and combustion temperature had the greatest effects on system power generation. Round-trip efficiency (RTE) was significantly affected by combustion temperature. The largest exergy loss occurred in the gas power plant. The optimal system operating ranges of the system recovery pressure, CCS pressure, and combustion temperature were 6−10 MPa, 0.53−0.8 MPa, and 1,503−1,773 K, where the RTEs and <span><math><msub><mi>η</mi><mrow><mtext>Ex</mtext><mo>,</mo><mspace></mspace><mrow><mi>RS</mi></mrow></mrow></msub></math></span> reached 55%−58.98% and 74.6%−76%, respectively. The proposed system can simultaneously achieve the synergistic functions of large-scale energy storage, multilevel energy utilization, peak regulation, and carbon emission reduction. It can also be widely used in advanced distributed energy storage applications in the future.</p></div>","PeriodicalId":100472,"journal":{"name":"Energy Storage and Saving","volume":"2 3","pages":"Pages 479-486"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49884406","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":"Comparative study on heat transfer enhancement of metal foam and fins in a shell-and-tube latent heat thermal energy storage unit","authors":"Shuai Zhang ,&nbsp;Ziyuan Li ,&nbsp;Yuying Yan ,&nbsp;Mark Alston ,&nbsp;Limei Tian","doi":"10.1016/j.enss.2023.03.004","DOIUrl":"https://doi.org/10.1016/j.enss.2023.03.004","url":null,"abstract":"<div><p>Metal foam and fins are two popular structures that are employed to enhance the heat transfer of phase change materials in shell-and-tube heat storage units. However, it remains unclear which structure is better in terms of energy storage performance. In this study, the heat transfer enhancement performances of metal foam and fins are compared to provide guidance on the optimal structure to be chosen for practical applications. Three fin structures (four fins, two vertical fins, and two horizontal fins) are considered. Under the full configuration (volume fraction of metal = 3%), the unit with four fins was found to have a faster melting rate than those with vertical or horizontal fins. In other words, increasing the number of fins helps to accelerate the melting process. Nevertheless, the unit with metal foam enhancement has the highest melting rate. Under the half configuration (volume fraction of metal = 1.5%), the melting rate of the unit enhanced by metal foam is significantly decreased, whereas there is no remarkable changes in the units enhanced by fins. However, metal foam is still shown to be the best thermal enhancer. The energy storage rate of the unit enhanced by metal foam can be up to 10 times higher than that of the unit enhanced by fins.</p></div>","PeriodicalId":100472,"journal":{"name":"Energy Storage and Saving","volume":"2 3","pages":"Pages 487-494"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49884405","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":"Thermal energy storage as a way to improve transcritical CO2 heat pump performance by means of heat recovery cycles","authors":"Chiara Mancinelli,&nbsp;Michele Manno,&nbsp;Marco Salvatori,&nbsp;Alessandro Zaccagnini","doi":"10.1016/j.enss.2023.06.003","DOIUrl":"https://doi.org/10.1016/j.enss.2023.06.003","url":null,"abstract":"<div><p>Electrification of the heating sector is a major target of energy transition towards a more sustainable, efficient, and less polluted future. Heat pumps are considered more suitable than electrical heaters or fossil-fueled boilers; however, common refrigerants cause ozone layer depletion, which exacerbates the greenhouse effect. Natural refrigerants, such as CO₂, perform comparably and even better than hydrofluorocarbons while minimizing the negative aspects. This study presents a model of a water-heater CO₂ transcritical heat pump in a configuration that increases the overall coefficient of performance (COP) by introducing thermal energy storage (TES). The thermodynamic cycle was divided into two separate phases. After heating the TES (charging), warm water was used as the heating fluid in the evaporator to increase the evaporation temperature and pressure of CO₂, which reduced the work of the compressor. As the water temperature decreased progressively, the discharge cycles improved the total COP. The case study focuses on dairy processes and suggests a more straightforward and cheaper method to improve cycle efficiency than the current processes, such as ejector-expansion systems or double compression.</p></div>","PeriodicalId":100472,"journal":{"name":"Energy Storage and Saving","volume":"2 3","pages":"Pages 532-539"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49884407","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":"Dynamic modeling framework for solid-gas sorption systems","authors":"Dacheng Li ,&nbsp;Tiejun Lu ,&nbsp;Nan Hua ,&nbsp;Yi Wang ,&nbsp;Lifang Zheng ,&nbsp;Yi Jin ,&nbsp;Yulong Ding ,&nbsp;Yongliang Li","doi":"10.1016/j.enss.2023.05.002","DOIUrl":"https://doi.org/10.1016/j.enss.2023.05.002","url":null,"abstract":"<div><p>A dynamic modeling framework based on an intelligent approach is proposed to identify the complex behaviors of solid-gas sorption systems. An experimental system was built and tested to assist in developing a model of the system performance during the adsorption and desorption processes. The variations in the thermal effects and gaseous environment accompanying the reactions were considered when designing the model. An optimization platform based on a multi-population genetic algorithm and artificial criteria was established to identify the modeling coefficients and quantify the effects of condition changes on the reactions. The calibration of the simulation results against the tested data showed good accuracy, where the coefficient of determination was greater than 0.988. The outcome of this study could provide a modeling basis for the optimization of solid-gas sorption systems and contribute a potential tool for uncovering key characteristics associated with materials and components.</p></div>","PeriodicalId":100472,"journal":{"name":"Energy Storage and Saving","volume":"2 3","pages":"Pages 522-531"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49884402","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":"Research progress of mobile cold storage using ice slurry","authors":"Tao Yu ,&nbsp;Qun Du ,&nbsp;Mingbiao Chen ,&nbsp;Yongzhen Chen ,&nbsp;Wenji Song ,&nbsp;Ziping Feng","doi":"10.1016/j.enss.2023.05.003","DOIUrl":"https://doi.org/10.1016/j.enss.2023.05.003","url":null,"abstract":"<div><p>The demand for cooling, such as that of products, spaces, and processes, has increased with the development of urbanization. Cold storage can shift the valley time of electric power to cold energy. Compared to the fixed cold storage routine, mobile cold storage can eliminate site limitations. Ice slurry, as a new functional fluid, has recently become a new source of technology in our social lives. First, the research status of ice slurry mobile cold storage is summarized. Applications in the engineering field, such as space cooling, fisheries, pipeline cleaning, firefighting, and other real scenarios, are listed. Subsequently, key issues are summarized to understand the theoretical basis of ice slurry mobile cold storage, including flow, heat transfer, and loss in the mobile cold storage process-related ice slurry. Both tap water ice slurry and binary ice slurry are distinguished and discussed. Finally, beneficial policy analyses and market prospects for its promotion are presented. In summary, ice slurry mobile cold storage is a popular research topic with broad prospects for energy storage.</p></div>","PeriodicalId":100472,"journal":{"name":"Energy Storage and Saving","volume":"2 3","pages":"Pages 503-512"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49884403","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":"Experimental test of a building thermal system for preventive maintenance based on thermoeconomic analysis","authors":"I. Prol-Godoy ,&nbsp;A. Picallo-Perez ,&nbsp;J.M. Sala-Lizarraga ,&nbsp;J. Rey-Martínez","doi":"10.1016/j.enss.2023.08.002","DOIUrl":"10.1016/j.enss.2023.08.002","url":null,"abstract":"<div><p>An analysis of the sectorial structure of energy consumption shows that residential and tertiary sector buildings are the third-highest consumers, responsible for 29.5% of a city’s final energy consumption. The Building Quality Control Laboratory of the Basque Government aims to promote quality, innovation, and sustainability in buildings. To accomplish this goal, it has constructed an experimental facility with different energy generation technologies and a very versatile control system for testing different energy systems and operation modes. In this study, we tested a facility for supplying domestic hot water and heating for a multi-family house by means of a condensing boiler and an aerothermal heat pump (together with the corresponding control). This installation could reproduce the thermal demands required to be satisfied by the generation equipment through a programmed operation of the installation based on real demands. Additionally, this installation was analyzed using thermoeconomics (TE) to solve problems unable to be solved using traditional energy analyses based on the First Law of Thermodynamics. These problems include: (1) Determining the costs of the products of the installation based on physical criteria, (2) detecting the places where losses actually occur, evaluating their costs, and proposing cost-effective improvements, and (3) diagnosing issues in the installation. As a result, this paper suggests a solution to the preventive maintenance problems confronting the technical maintenance personnel for thermal installations in buildings by applying TE knowledge and using real data collected from sensors.</p></div>","PeriodicalId":100472,"journal":{"name":"Energy Storage and Saving","volume":"3 1","pages":"Pages 42-51"},"PeriodicalIF":0.0,"publicationDate":"2023-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772683523000420/pdfft?md5=a6e0f09b40da51a2c2175b8f52c971fd&pid=1-s2.0-S2772683523000420-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75984551","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":"Thermal and mechanical characterization of under-2-µm-thick AlCrNbSiTi high-entropy thin film","authors":"Yibo Wang ,&nbsp;Xiaona Huang ,&nbsp;Yan Liu ,&nbsp;Xiangyu Zhang,&nbsp;Bing Yang,&nbsp;Yanan Yue","doi":"10.1016/j.enss.2023.06.002","DOIUrl":"10.1016/j.enss.2023.06.002","url":null,"abstract":"<div><p>High-entropy alloys (HEAs) exhibit extraordinary physical properties such as superior strength-to-weight ratios and enhanced corrosion and oxidation resistance, making them potentially useful in energy storage and generation industries. However, thermal and mechanical properties of HEAs with various compositions vary significantly. Furthermore, these properties have rarely been investigated simultaneously owing to material or instrumentation limitations. Herein, we synthesize an HEA (AlCrNbSiTi) coating with a thickness of less than 2 <span><math><mi>μ</mi></math></span>m. We customize a frequency-domain photothermal testing system to characterize the thermal and mechanical properties of the proposed coating with high accuracy. Owing to the large mixing enthalpy of the Al-Ti, Nb-Si, and Ti-Si pairs in the coating, its hardness and elastic modulus are 15.2 and 254.7 GPa, respectively which are higher than those of previously reported HEAs. The thermal conductivity of the AlCrNbSiTi coating is characterized to be 2.90 W·m⁻¹·K⁻¹, within the expected range and well explained by the free-electron consistency diversity and phonon scattering from the amorphous structure. Additionally, the coating exhibits adequate wear performance, with a wear rate of 5.4 × 10⁻⁸ mm³·N⁻¹·m⁻¹. This relatively low thermal conductivity, combined with extraordinary mechanical properties, makes the proposed material an excellent candidate as a protective coating material for nuclear reactor components which require high strength, irradiation resistance, and thermal protection.</p></div>","PeriodicalId":100472,"journal":{"name":"Energy Storage and Saving","volume":"3 1","pages":"Pages 52-59"},"PeriodicalIF":0.0,"publicationDate":"2023-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772683523000316/pdfft?md5=9e607f06c4786d76bcc20fe3cdfbbbe8&pid=1-s2.0-S2772683523000316-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78992376","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":"Experimental evaluation of factors affecting performance of concentrating photovoltaic/thermal system integrated with phase-change materials (PV/T-CPCM)","authors":"Zhaoyang Luan ,&nbsp;Lanlan Zhang ,&nbsp;Xiangfei Kong ,&nbsp;Han Li ,&nbsp;Man Fan","doi":"10.1016/j.enss.2023.06.001","DOIUrl":"10.1016/j.enss.2023.06.001","url":null,"abstract":"<div><p>The photovoltaic/thermal (PV/T) system is a promising option for countering energy shortages. To improve the performance of PV/T systems, compound parabolic concentrators (CPCs) and phase-change materials (PCMs) were jointly applied to construct a concentrating photovoltaic/thermal system integrated with phase-change materials (PV/T-CPCM). An open-air environment is used to analyze the effects of different parameters and the intermittent operation strategy on the system performance. The results indicate that the short-circuit current and open-circuit voltage are positively correlated with the solar irradiance, but the open-circuit voltage is negatively correlated with the temperature of the PV modules. When the solar irradiance is 500 W⋅m⁻² and the temperature of the PV modules is 27.5 ºC, the short-circuit current and open-circuit voltage are 1.0 A and 44.5 V, respectively. Higher solar irradiance results in higher thermal power, whereas the thermal efficiency is under lower solar irradiance (136.2–167.1 W⋅m⁻² is twice under higher solar irradiance (272.3–455.7 W⋅m⁻²). In addition, a higher mass flow rate corresponds to a better cooling effect and greater pump energy consumption. When the mass flow rate increases from 0.01 to 0.02 kg⋅s^–1, the temperature difference between the inlet and outlet decreases by 1.8 ºC, and the primary energy-saving efficiency decreases by 0.53%. The intermittent operation of a water pump can reduce the energy consumption of the system, and the combination of liquid cooling with PCMs provides better thermal regulation and energy-saving effects under various conditions.</p></div>","PeriodicalId":100472,"journal":{"name":"Energy Storage and Saving","volume":"3 1","pages":"Pages 30-41"},"PeriodicalIF":0.0,"publicationDate":"2023-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772683523000304/pdfft?md5=45a6ddd53592770c55cc60e6c88c1a36&pid=1-s2.0-S2772683523000304-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81302472","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":"Comparative study on the globally optimal performance of cryogenic energy storage systems with different working media","authors":"Hongbo Tan,&nbsp;Na Wen,&nbsp;Boshi Shao","doi":"10.1016/j.enss.2023.02.005","DOIUrl":"https://doi.org/10.1016/j.enss.2023.02.005","url":null,"abstract":"<div><p>Cryogenic energy storage (CES) has garnered attention as a large-scale electric energy storage technology for the storage and regulation of intermittent renewable electric energy in power networks. Nitrogen and argon can be found in the air, whereas methane is the primary component of natural gas, an important clean energy resource. Most research on CES focuses on liquid air energy storage (LAES), with its typical round-trip efficiency (RTE) being approximately 50% (theoretical). This study aims to explore the feasibility of using different gases as working media in CES systems, and consequently, to achieve a high system efficiency by constructing four steady-state process models for the CES systems with air, nitrogen, argon, and methane as working media using Aspen HYSYS. A combined single-parameter analysis and multi-parameter global optimization method was used for system optimization. Further, a group of key independent variables were analysed carefully to determine their reasonable ranges to achieve the ideal system performance, that is, RTE and liquefaction ratio through a single-parameter analysis. Consequently, a multi-parameter genetic algorithm was adopted to globally optimize the CES systems with different working media, and the energy and exergy analyses were conducted for the CES systems under their optimal conditions. The results indicated the high cycle efficiency of methane and a low irreversible loss in the liquefaction cycle. Moreover, the Joule-Thomson valve inlet temperature and charging and discharging pressures considerably affected the system performance. However, exergy loss in the CES system occurred primarily in the compressor, turbine, and liquefaction processes. The maximum optimal RTE of 55.84% was achieved in the liquid methane energy storage (LMES) system. Therefore, the LMES system is expected to exhibit potential for application in the CES technology to realize the integration of natural gas pipelines with renewable power grids on a large scale. Moreover, the results of study have important theoretical significance for the innovation of the CES technology.</p></div>","PeriodicalId":100472,"journal":{"name":"Energy Storage and Saving","volume":"2 2","pages":"Pages 421-434"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50192755","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}