IF 9 1区工程技术

Energy Pub Date : 2025-03-25 DOI: 10.1016/j.energy.2025.135719

Xuejian Yao , Kaichun Su , Hongbin Zhang , Shuai Zhang , Haiyan Zhang , Jian Zhang

{"title":"Remaining useful life prediction for lithium-ion batteries in highway electromechanical equipment based on feature-encoded LSTM-CNN network","authors":"Xuejian Yao , Kaichun Su , Hongbin Zhang , Shuai Zhang , Haiyan Zhang , Jian Zhang","doi":"10.1016/j.energy.2025.135719","DOIUrl":"10.1016/j.energy.2025.135719","url":null,"abstract":"<div><div>Lithium-ion batteries are the preferred choice for primary or emergency power supply in highway electromechanical equipment at present. The safety and longevity of these systems are significantly dependent on the health of the lithium-ion batteries. Accurate remaining useful life (RUL) prediction of lithium-ion batteries is essential for the reliable and continuous operation of highway electromechanical equipment. A RUL prediction method is proposed for lithium-ion batteries based on a feature-encoded LSTM-CNN network. Initially, statistical features are extracted by fitting a Gaussian mixture distribution to the probability density curve of the incremental capacity (IC) curve. Subsequently, physical features are derived from the battery discharge cycles. Statistical and physical features are then preprocessed, integrated and used in a feature-encoded LSTM-CNN network for RUL prediction. Testing on the NASA battery dataset demonstrated that this method reduces mean absolute error (MAE), root mean square error (RMSE), and mean absolute percentage error (MAPE) by 31.0 %, 29.4 %, and 31.4 %, respectively, compared to traditional LSTM-based prediction models. The average error in RUL prediction is controlled within 1 cycle. Results validate that the proposed method has high precision and generalizability in predicting the RUL.</div></div>","PeriodicalId":11647,"journal":{"name":"Energy","volume":"323 ","pages":"Article 135719"},"PeriodicalIF":9.0,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143724990","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}

引用次数: 0

Developing a novel city-wide useful energy demand model based on detailed energy conversion processes

IF 9 1区工程技术

Energy Pub Date : 2025-03-25 DOI: 10.1016/j.energy.2025.135833

Ke Sun , Kangkang Tong , Jinghang Xu , Yuli Shan

{"title":"Developing a novel city-wide useful energy demand model based on detailed energy conversion processes","authors":"Ke Sun , Kangkang Tong , Jinghang Xu , Yuli Shan","doi":"10.1016/j.energy.2025.135833","DOIUrl":"10.1016/j.energy.2025.135833","url":null,"abstract":"<div><div>Understanding urban energy demand at the final-to-useful conversion stage is critical for effective energy transition strategies, yet traditional urban energy demand models often overlook this aspect. This research addresses this gap by developing a novel, city-wide useful work model that integrates over 100 energy conversion processes across 48 end-use sectors, considering each city's economic structure, development level, and energy structure. This model is then applied to 63 cities across Jing-Jin-Ji, Yangtze River Delta, and Pearl River Delta urban agglomerations in China for the years 2010, 2015, and 2020. It finds significant inter-city variations in total and sectoral useful work due to differences in population size, economic output, and climate zones, with the industrial sector generally dominating. Notably, useful work intensity per unit of economic output in northern cities is higher than cities in other regions, due to economic structure and climate factors. Furthermore, it finds that city-wide useful work efficiency ranges from 17.2% to 47.4%, which, although higher than national average, still highlights substantial potential for improvement. This study also identifies a previously unobserved sub-linear relationship between city-wide useful work and economic output, specifically in 2015 and 2020, suggesting potentially weak decoupling between energy use and economic growth. This study advances urban energy demand modeling by integrating socioeconomic data with detailed energy conversion processes, offering critical insights for targeted energy conservation and management policies. This pioneering approach provides a comprehensive assessment of urban energy dynamics, moving beyond traditional energy carrier-focused analyses.</div></div>","PeriodicalId":11647,"journal":{"name":"Energy","volume":"323 ","pages":"Article 135833"},"PeriodicalIF":9.0,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143725041","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}

引用次数: 0

Heat-mass transfer, reaction and sintering characteristics in energy carrier for calcium-looping thermochemical energy storage

IF 9 1区工程技术

Energy Pub Date : 2025-03-25 DOI: 10.1016/j.energy.2025.135801

Hongchuan Jiang, Xiang Li, Cai Liang

{"title":"Heat-mass transfer, reaction and sintering characteristics in energy carrier for calcium-looping thermochemical energy storage","authors":"Hongchuan Jiang, Xiang Li, Cai Liang","doi":"10.1016/j.energy.2025.135801","DOIUrl":"10.1016/j.energy.2025.135801","url":null,"abstract":"<div><div>Calcium looping-thermochemical energy storage driven by renewable energy is a promising technology for large-scale long-duration energy storage and industrial decarbonization. However, sintering significantly reduces the energy storage capacity and cycling stability of the energy carrier. In this study, a coupled heat-mass-reaction-sintering model is proposed to investigate the thermochemical behavior and energy storage performance at the particle scale. Extremely high temperature and long residence time are the primary factors aggravating sintering under photothermal. Despite high energy storage efficiency and mild conditions, the prolonged conversion time under electrothermal is not conducive to rapid response applications. For operating parameters at the reactor scale, increasing input power is essential for high reaction rate and energy storage efficiency. However, matching input power and residence time is necessary to mitigate sintering and reduce energy losses. Furthermore, increasing ambient gas velocity and pressure is beneficial for enhancing temperature uniformity at the cost of slowing conversion. For particle parameters, high absorptivity and initial porosity are crucial for high energy storage efficiency and fast conversion. Low porosity caused by sintering can cause CO<sub>2</sub> accumulation, further extending conversion time. Additionally, 0.15–0.25 mm radius range is suitable for rapid energy storage response, while 0.15–0.2 mm radius range is optimal for sintering resistance in long-term operation.</div></div>","PeriodicalId":11647,"journal":{"name":"Energy","volume":"323 ","pages":"Article 135801"},"PeriodicalIF":9.0,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143715258","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}

引用次数: 0

Climate shocks and corporate default risk: Evidence from China

IF 9 1区工程技术

Energy Pub Date : 2025-03-25 DOI: 10.1016/j.energy.2025.135786

Zongming Liu, Jingzhi Feng

{"title":"Climate shocks and corporate default risk: Evidence from China","authors":"Zongming Liu, Jingzhi Feng","doi":"10.1016/j.energy.2025.135786","DOIUrl":"10.1016/j.energy.2025.135786","url":null,"abstract":"<div><div>The urgency of addressing climate change has heightened as a result of extreme weather events. Energy companies face physical and regulatory shocks, impacting their financial standing and debt default risk. This paper examines default risk formation mechanisms for listed energy firms under climate change shocks. Utilizing panel data from Chinese listed energy firms spanning the years 2011–2021, this study examines the impact of climate shocks on default risk. The findings indicate that intensified climate change significantly elevates default risk, revealing a nonlinear relationship influenced by the intensity of environmental regulation. This analysis underscores the importance of regulatory frameworks in moderating the effects of climate-related risks on corporate financial stability. Climate change raises financing costs and reduces operating profits, affecting default risk, particularly for firms in regions with high environmental concern. The implementation of the Paris climate agreement post-2015 has spurred stricter policies, magnifying the contributory effect of climate shocks on energy firms' default risk. This study underscores the criticality of integrating environmental considerations into financial risk assessments for energy companies.</div></div>","PeriodicalId":11647,"journal":{"name":"Energy","volume":"323 ","pages":"Article 135786"},"PeriodicalIF":9.0,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143715259","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}

引用次数: 0

Performance evaluation and failure analysis of Na3.5Fe2.5(PO4)1.5P2O7‖hard carbon sodium-ion batteries: Implications for large-capacity full-cell configurations

IF 9 1区工程技术

Energy Pub Date : 2025-03-25 DOI: 10.1016/j.energy.2025.135844

Jinhan Teng , Kaibo Zhang , Binghan Dai , Luyu Lei , Sicheng Liu , Tianming Lu , Junjie Huang , Fangmin Yang , Hao Li , Xin Tang , Jing Li

{"title":"Performance evaluation and failure analysis of Na3.5Fe2.5(PO4)1.5P2O7‖hard carbon sodium-ion batteries: Implications for large-capacity full-cell configurations","authors":"Jinhan Teng , Kaibo Zhang , Binghan Dai , Luyu Lei , Sicheng Liu , Tianming Lu , Junjie Huang , Fangmin Yang , Hao Li , Xin Tang , Jing Li","doi":"10.1016/j.energy.2025.135844","DOIUrl":"10.1016/j.energy.2025.135844","url":null,"abstract":"<div><div>Na<sub>3</sub>.<sub>5</sub>Fe<sub>2</sub>.<sub>5</sub>(PO<sub>4</sub>)<sub>1</sub>.<sub>5</sub>P<sub>2</sub>O<sub>7</sub>‖hard carbon (NFPP‖HC) sodium-ion batteries, owing to their low cost, stability, and safety, show great promise for large-scale energy storage applications. However, most existing research has primarily focused on material optimization, often limited to half-cell systems, which restricts the applicability of the findings to full-cell configurations. This study, from the perspective of practical application in sodium-ion batteries, systematically evaluates the performance of large-capacity pouch cells using different commercial HC, with particular attention to the potential risks associated with using high-voltage platform HC in full-cell configurations. Comprehensive failure analysis reveals that HC with higher platform capacities typically exhibit poorer sodium-ion storage kinetics due to compression of interlayer channels, leading to fluctuations in the anode potential and promoting dendrite growth. This process is accompanied by complex interfacial reactions that significantly exacerbate sodium loss. Further visual reconstruction and molecular dynamics simulations indicate that wider interlayer spacing and higher defect concentrations play key roles in the \"insertion\" and \"filling\" processes of sodium ions. The study also proposes effective approaches for improving battery performance through optimized charging strategies, electrolyte adaptation, and electrode design. These findings provide valuable theoretical insights into the optimization of HC in sodium-ion batteries and offer important guidance for future industrial applications.</div></div>","PeriodicalId":11647,"journal":{"name":"Energy","volume":"323 ","pages":"Article 135844"},"PeriodicalIF":9.0,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143724998","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}

引用次数: 0

Carbon capture, utilization, and storage in China's high-emission industries: Optimal deployment under carbon neutrality goals

IF 9 1区工程技术

Energy Pub Date : 2025-03-25 DOI: 10.1016/j.energy.2025.135774

Peng-Tao Wang , Yi-Xiang Zhang , Fei-Yin Wang , Mao Xu

{"title":"Carbon capture, utilization, and storage in China's high-emission industries: Optimal deployment under carbon neutrality goals","authors":"Peng-Tao Wang , Yi-Xiang Zhang , Fei-Yin Wang , Mao Xu","doi":"10.1016/j.energy.2025.135774","DOIUrl":"10.1016/j.energy.2025.135774","url":null,"abstract":"<div><div>The Coal-fired power plants (CFPPs), Iron & Steel Industry (ISI), and Cement Industry (CI), the three high-emission industries, account for about 70 % of China's total carbon dioxide (CO<sub>2</sub>) emissions, facing significant challenges in carbon reduction. Carbon Capture, Utilization, and Storage (CCUS) is the foundational technology in high-emission industries' achieving carbon neutrality. This paper first investigated 3137 CFPPs, 2025 cement plants, and 392 steel plants, assessed their suitability for CCUS retrofitting. Secondly, the Industry-CCUS model was constructed to identify CCUS deployment plans for high-emission industries under different scenarios. Finally, a comprehensive analysis and prioritized clusters for CCUS deployment in China's high-emission industries are provided. The result shows that when the carbon reduction demand for CCUS reaches 1.444 billion tons per year, requires 658 CFPPs, 101 steel plants, and 357 cement plants to be CCUS-deployed before 2045. Total investment of 31.247 billion USD, with the investment costs for the three high-emission industries being 19.686 billion, 7.187 billion, and 4.374 billion USD, respectively. It is necessary to establish two CCUS cluster areas nationwide, recommended to Jinan and Shenyang. The research provides data support for the optimized deployment of CCUS in high-emission industries, offers a theoretical basis for carbon reduction in China's high-emission industries.</div></div>","PeriodicalId":11647,"journal":{"name":"Energy","volume":"323 ","pages":"Article 135774"},"PeriodicalIF":9.0,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143739104","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}

引用次数: 0

Innovative valorization of waste tire by integrating pyrolysis with Steam Rankine Cycle, multi-generation, and desalination: Novel process design, simulation and comprehensive analysis

IF 9 1区工程技术

Energy Pub Date : 2025-03-24 DOI: 10.1016/j.energy.2025.135812

Yusha Hu, Jianzhao Zhou, Qiming Qian, Jingzheng Ren

{"title":"Innovative valorization of waste tire by integrating pyrolysis with Steam Rankine Cycle, multi-generation, and desalination: Novel process design, simulation and comprehensive analysis","authors":"Yusha Hu, Jianzhao Zhou, Qiming Qian, Jingzheng Ren","doi":"10.1016/j.energy.2025.135812","DOIUrl":"10.1016/j.energy.2025.135812","url":null,"abstract":"<div><div>Waste tire pyrolysis has gained attention as a promising solution for the sustainable management of discarded tires, yet existing designs often overlook efficient exhaust gas treatment and waste heat recovery. To fill this gap, this study designed and simulated an integrated process using Aspen Plus combining waste tire pyrolysis with combined cooling, heat, and power, a Steam Rankine Cycle (SRC), desalination, and monoethanolamine (MEA)-based carbon capture system. The results indicate that the energy efficiency and exergy efficiency of the process are 48.76% and 51.5%, respectively. The techno-economic analysis suggests that government agencies should provide subsidies of at least 38.43 $/ton of waste to achieve positive net present value. Additionally, it is possible to increase the selling price of pyrolysis oil to 0.488 $/kg or reduce the purchase price of waste tires or hydrogen to 0.077 $/kg, 1.591$/kg, respectively, for the proposed process to achieve positive returns within 20 years. These findings demonstrate the potential of the proposed system to enhance both the energy utilization and economic viability of waste tire pyrolysis.</div></div>","PeriodicalId":11647,"journal":{"name":"Energy","volume":"323 ","pages":"Article 135812"},"PeriodicalIF":9.0,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143724997","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}

引用次数: 0

Numerical study on transient critical heat flux prediction with dynamic bubble simulation under exponentially escalating heat input

IF 9 1区工程技术

Energy Pub Date : 2025-03-24 DOI: 10.1016/j.energy.2025.135785

Xinyan Xu , Shuwen Yu , Changhong Peng

{"title":"Numerical study on transient critical heat flux prediction with dynamic bubble simulation under exponentially escalating heat input","authors":"Xinyan Xu , Shuwen Yu , Changhong Peng","doi":"10.1016/j.energy.2025.135785","DOIUrl":"10.1016/j.energy.2025.135785","url":null,"abstract":"<div><div>This paper presents the development and validation of numerical transient critical heat flux (CHF) prediction model based on the coupling of dynamic bubble simulation by Monte Carlo (MC) method and two-dimensional heat conduction model of the substrate by finite volume method. The model aims to predict the transient CHF value, estimate the dynamic heat flux and temperature distribution and evaluate various phenomena of bubble behaviors during transient boiling heat transfer process under exponentially escalating heat power input. The dynamic bubble simulation is performed by modeling and tracking bubble nucleation, bubble growth, bubble departure and bubble coalescence procedures of individual bubbles in real time based on simplified fundamental bubble parameters including nucleation site density (NSD), bubble departure diameter, bubble growth and waiting time. The heat flux partitioning model was used to evaluate different heat fluxes based on the classification of microlayer and dry spot regions. According to the dynamic heat flux boundary due to dynamic bubble behavior and exponentially escalating heat input, the thermal conductivity model was coupled to feed back the wall temperature distribution for further updates and simulation of dynamic bubble behavior. Numerical simulation results showed good agreement with transient flow boiling experimental results with escalating periods ranging from 500 ms to 5 ms, and the results showed the trend that the transient CHF value increases with decreasing escalating period as observed in experiments. Sensitivity analysis of input bubble parameters was performed and showed that the model is more sensitive to bubble departure diameter and bubble waiting time.</div></div>","PeriodicalId":11647,"journal":{"name":"Energy","volume":"323 ","pages":"Article 135785"},"PeriodicalIF":9.0,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143739205","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}

引用次数: 0

Influence of impurity particles on non-equilibrium condensation flow characteristics in steam turbine

IF 9 1区工程技术

Energy Pub Date : 2025-03-24 DOI: 10.1016/j.energy.2025.135799

Pengfei Hu , Mingyang Sun , Yiyuan Zhao , Weifei Gu , Jie Wan , Qi Li

{"title":"Influence of impurity particles on non-equilibrium condensation flow characteristics in steam turbine","authors":"Pengfei Hu , Mingyang Sun , Yiyuan Zhao , Weifei Gu , Jie Wan , Qi Li","doi":"10.1016/j.energy.2025.135799","DOIUrl":"10.1016/j.energy.2025.135799","url":null,"abstract":"<div><div>In a steam turbine, the rapid expansion of steam can induce non-equilibrium condensation, which is significantly influenced by the presence of impurities. The primary purpose of this investigation is to determine the optimal particle conditions to minimize wet steam losses in heterogeneous condensation flows. First, a numerical model is improved to simulate heterogeneous condensation, focusing on the nucleation process on solid particle surface. Then, the model is applied to investigate heterogeneous condensation characteristics within the Moses-Stein nozzle and Dykas cascade. Finally, the impact of heterogeneous condensation on wet steam loss is evaluated in terms of thermodynamic loss ratio (TLR) and wetness fraction ratio (WFR). Research results indicate that heterogeneous condensation significantly suppresses condensation compared to homogeneous condensation and markedly improves distribution of flow field parameters within the nozzle. However, wetness increases with higher particle concentration and particle radius. Under optimal particle conditions, the wetness at the nozzle outlet is reduced by 8 %, effectively decreasing wet steam loss due to condensation. For the Dykas blade cascade, with a particle concentration of 1 × 10<sup>16</sup> kg<sup>−1</sup> and a particle radius of 1 × 10<sup>−9</sup> m, thermodynamic loss is reduced by approximately 15 %, and wetness decreases by about 5 % compared to homogeneous condensation.</div></div>","PeriodicalId":11647,"journal":{"name":"Energy","volume":"323 ","pages":"Article 135799"},"PeriodicalIF":9.0,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143724992","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}

引用次数: 0

Optimization of hybrid active-passive solar heating system through day-ahead and real-time control

IF 9 1区工程技术

Energy Pub Date : 2025-03-24 DOI: 10.1016/j.energy.2025.135816

Dehan Liu, Jing Zhao, Zhe Tian, Yawen Li, Zilan Yang, Shilei Lu, Quanyi Lin

{"title":"Optimization of hybrid active-passive solar heating system through day-ahead and real-time control","authors":"Dehan Liu, Jing Zhao, Zhe Tian, Yawen Li, Zilan Yang, Shilei Lu, Quanyi Lin","doi":"10.1016/j.energy.2025.135816","DOIUrl":"10.1016/j.energy.2025.135816","url":null,"abstract":"<div><div>Solar heating has the advantages of low-carbon and clean energy, but its operational performance is significantly influenced by solar radiation, resulting in pronounced randomness and intermittency. Therefore, this study introduces an innovative Active-Passive Hybrid Solar Heating System (A-PHSHS) that incorporates attached sunspace, solar collector, phase change thermal storage device, floor heating, and electric heater, supporting five operational modes. To address the mismatch and lag issues in different mode combinations under Rule-Based Control (RBC), a dynamic operation scheme combining predictive Day-ahead scheduling with Real-time Control (DRC) is proposed. In the day-ahead phase, the scheme plans for thermal storage during valley electricity price periods by predicting solar capacity and the building's thermal demand for the next day. In the real-time control phase, the dynamic switching of operation modes is based on the prediction of the building temperature and feedback. Experimental results show that under DRC, solar utilization rates can reach 40.61 %–46.22 %, with the cost of temperature increase between 3.77 °C/CNY·day and 8.12 °C/CNY·day. Compared to RBC, the indoor average temperature increases by 1.6 °C, solar thermal utilization rate improves by 5.4 %, energy savings reach 24.24 %, and cost savings are 38.40 %.</div></div>","PeriodicalId":11647,"journal":{"name":"Energy","volume":"323 ","pages":"Article 135816"},"PeriodicalIF":9.0,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143738657","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}

引用次数: 0

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