Energy and Buildings最新文献

{"title":"Cost-optimal control for a small energy community heated with dual source heat pump and district heating","authors":"Yangmin Wang ,&nbsp;Ruqian Zhang ,&nbsp;Altti Meriläinen ,&nbsp;Antti Kosonen ,&nbsp;Juha Jokisalo ,&nbsp;Risto Kosonen","doi":"10.1016/j.enbuild.2025.115622","DOIUrl":"10.1016/j.enbuild.2025.115622","url":null,"abstract":"<div><div>Control strategies are crucial for reducing energy costs in hybrid heating systems using multiple energy carriers. The study analyzed the impact of three control strategies on energy usage and costs in a small energy community heated with a hybrid heating system. The system comprises a low-temperature heating network powered by a dual source heat pump and a district heating network. The control strategies included a low-temperature heating-prioritized and two cost-effective control strategies based on different electricity and district heating prices. The analysis was implemented by dynamic simulations based on the customized heating network model for the years 2022 and 2023. The cost-effective control strategy based on hourly electricity prices and the estimated cost of district heating produced by utilizing waste heat from hydrogen production resulted in the lowest annual costs. It reduced the annual costs by 25 % in 2022 and by 5 % in 2023 compared to the low-temperature heating-prioritized control strategy. The major difference between the two years was the variations in energy prices and the structure of the district heating power fees. As price differences between electricity and district heating in 2023 were less than those in 2022, the drop in energy costs upon adopting the cost-effective control strategy was smaller in 2023. Different power fee charging policies resulted in an increased power fee cost in 2023 even if the maximum district heating power slightly decreased. The increased power fee cost weakened the positive impact of energy cost saving brought by the cost-effective control strategies in the total costs.</div></div>","PeriodicalId":11641,"journal":{"name":"Energy and Buildings","volume":"336 ","pages":"Article 115622"},"PeriodicalIF":6.6,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143687528","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Impact of diurnal variation in 3D urban landscape metrics on land surface temperature in Shanghai: A local climate zone perspective","authors":"Hongchao Xu ,&nbsp;Fengyun Sun ,&nbsp;Peng Zeng ,&nbsp;Xingyan Bao ,&nbsp;Yue Che","doi":"10.1016/j.enbuild.2025.115624","DOIUrl":"10.1016/j.enbuild.2025.115624","url":null,"abstract":"<div><div>With rapid urbanization, cities have shifted from two-dimensional (2D) to three-dimensional (3D) expansion, presenting challenges in understanding how urban 3D structures impact ecological environments. This study uses ECOSTRESS LST data, 3D building and vegetation data, Spearman correlation analysis, and a boosted regression tree (BRT) model to examine the diurnal effects of 3D landscape metrics on LST across various LCZs in Shanghai’s outer ring. The results show that a 1050 m spatial scale is optimal for analysis. Mean architecture height (MAH) was positively correlated with LST at 02:39, 05:42, and 09:27 but negatively at 12:58. At 12:58, the relative influence of mean architecture projection area (MAPA) was highest in LCZ 5 and LCZ 8. Larger building volumes (AVs) reduced LST at night, but increased it at 12:58, particularly in LCZs 4 and 8. The MAPA had the strongest positive effect on LST at 12:58, while mean architecture height standard (AHSD) had a cooling effect during the day but increased LST at night. This study offers new insights into the temporal impacts of 3D urban morphology on thermal conditions, providing actionable guidance for urban planning and heat island mitigation.</div></div>","PeriodicalId":11641,"journal":{"name":"Energy and Buildings","volume":"336 ","pages":"Article 115624"},"PeriodicalIF":6.6,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143687583","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing the Accuracy of Thermal Model Calibration: Integrating Zone Air and Surface Temperatures, Convection Coefficients, and Solar and Thermal Absorptivity","authors":"M. Cecilia Demarchi ,&nbsp;Sofía Gervaz Canessa ,&nbsp;Gabriel Pena ,&nbsp;Alejandro E. Albanesi ,&nbsp;Federico Favre","doi":"10.1016/j.enbuild.2025.115617","DOIUrl":"10.1016/j.enbuild.2025.115617","url":null,"abstract":"<div><div>Building energy simulation models are indispensable tools for predicting thermal and energy performance and evaluating building energy efficiency. However, in the calibration and sensitivity analysis of these models, most studies focus on air temperatures or energy consumption, typically not taking into account critical parameters such as surface temperatures, convective heat transfer coefficients, and thermal and solar absorptivities. In this context, this work complements prior studies by incorporating these critical parameters, including convection coefficients and thermal and solar absorptivity, enhancing both the reliability and completeness of building simulation models. Using a monitoring period, air and surface temperature data were collected under free-floating conditions and supplemented with meteorological records from an on-site station. Optimization was performed using the root mean square error (RMSE) metric to minimize discrepancies between measured and simulated values of zone air and surface temperatures. The results demonstrate that the detailed calibration strategy, which considers convective coefficients and material absorptivities as design variables and minimizes errors in both air and surface temperature predictions, significantly enhances model accuracy. This approach reduces the RMSE of air temperature predictions by 60% and the RMSE of surface temperature predictions by 73% (walls), 79% (inner roof), 42% (outer roof), and 82% (floor). Further analysis of heat gains and losses emphasizes the critical role of these parameters in the accuracy in the modeling of building-environment interactions. This detailed and robust approach ensures a more precise and reliable simulation model, highlighting the critical role of advanced calibration techniques in optimizing building energy performance simulations.</div></div>","PeriodicalId":11641,"journal":{"name":"Energy and Buildings","volume":"336 ","pages":"Article 115617"},"PeriodicalIF":6.6,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143687519","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Life cycle integrated multi-criteria decision model for roof assessment","authors":"Taylana Piccinini Scolaro,&nbsp;Enedir Ghisi","doi":"10.1016/j.enbuild.2025.115628","DOIUrl":"10.1016/j.enbuild.2025.115628","url":null,"abstract":"<div><div>Roofs significantly impact urban microclimates and indoor environments. However, selecting a suitable roof typology is complex due to environmental, social, and economic issues. This study aims to propose a method that comprises four parameters to support the selection of the most sustainable roof typology: life cycle energy assessment, urban heat island, life cycle cost analysis and thermal comfort. A top-floor flat in a multifamily residential building model with conventional (fibre cement), cool and green roofs, with and without thermal insulation, was used as a case study. The Brazilian climatic contexts of Florianópolis, Curitiba, and Brasília were considered. Computer simulations on EnergyPlus and data from the literature, technical specifications, a Brazilian database for quantifying materials and services and market prices were used to assess the roof typologies’ performance in each parameter. A questionnaire was applied to a panel of building experts to define the relative importance of each parameter. A multi-criteria decision-making (MCDM) method combining Analytic Hierarchy Process (AHP) and Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS) was used to weigh the parameters and select the most energy-sustainable roof alternative for each climatic context. The cool roof was the most sustainable in Florianópolis and Brasília, whereas the green roof was in Curitiba. Conventional roofs performed worst in all cities due to lower environmental and social efficiency. The method proposed herein offers valuable guidance for selecting energy-sustainable roofs and urban planning strategies, with adaptability to other roof typologies and countries, enabling tailored roof solutions for local conditions.</div></div>","PeriodicalId":11641,"journal":{"name":"Energy and Buildings","volume":"336 ","pages":"Article 115628"},"PeriodicalIF":6.6,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143644894","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluating the carbon emission reduction effect of distributed energy system in 20 years: Experience from Kitakyushu Science and Research Park, Japan","authors":"Yi Yu ,&nbsp;Qinfeng Zhao ,&nbsp;Tian Wang ,&nbsp;Weijun Gao","doi":"10.1016/j.enbuild.2025.115615","DOIUrl":"10.1016/j.enbuild.2025.115615","url":null,"abstract":"<div><div>Distributed Energy Systems (DES) are widely recognized for their high energy efficiency and low environmental impact, attracting significant attention in the building sector. Among them, the combined cooling, heat, and power (CCHP) system is a key model. However, existing research predominantly relies on software simulations, lacking empirical analysis of long-term operational performance, which, to some extent limits the accuracy of carbon reduction benefit assessments for DES. This study analyzes 20 years of operational data from the Kitakyushu Science and Research Park (KSRP), focusing on the dynamic changes in carbon emissions of the CCHP system, aiming to fill the gap in empirical research on long-term performance evaluation of DES. The result shows that (1) KSRP has achieved environmental benefits through the CCHP system. In 20 years, the heat recovery has reduced emissions by 3,254 tCO₂/year, accounting for 98 % of the total emission reduction benefits. (2) The use of CCHP technology in the DES reduces KSRP’s carbon emissions by 5,445 tCO₂/year compared to using the urban power grid. However, with the fuel cell shutdown, this dropped to 2,432 tCO₂/year, and further declined to just 9 tCO₂/year with the shutdown of the gas engine and termination of heat recovery. (3) As the key piece of heat recovery equipment, absorption chiller-heaters contribute 53 % of the total carbon reduction achieved by the DES over the 20 years. (4) The DES at KSRP showed the most significant energy-saving and emission-reduction benefits in the first 10 years, followed by a decline every five years. This study not only provides essential empirical data support for the long-term performance evaluation of DES but also offers scientific insights for optimizing system operation strategies and enhancing carbon reduction benefits.</div></div>","PeriodicalId":11641,"journal":{"name":"Energy and Buildings","volume":"337 ","pages":"Article 115615"},"PeriodicalIF":6.6,"publicationDate":"2025-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143760406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An indicator for discriminating annual changes in energy use patterns: Enhancing disclosure policies","authors":"Sumin Jeon ,&nbsp;Hyungsu Kang ,&nbsp;Sumin Kim","doi":"10.1016/j.enbuild.2025.115619","DOIUrl":"10.1016/j.enbuild.2025.115619","url":null,"abstract":"<div><div>To encourage individuals to reduce their energy consumption through energy disclosure policies voluntarily, the reliability of building-type classifications and benchmarks is crucial. This requires building energy-consumption data with long-term operational consistency. This study develops an indicator to distinguish annual changes in time-series energy consumption patterns for buildings and regions and presents a method to visually identify buildings with long-term operational consistency on a map. The proposed indicator is expected to be utilized in the following ways: First, it can be used for initial building type classification to compare energy use levels and to assess classification validity after time has passed. Second, it can be used to estimate priorities for performance improvement targets by identifying buildings sensitive to external conditions. Third, when applied to regional consumption data, it can diagnose changes in urban structure or the reliability of carbon emission reporting. Finally, because the monthly energy consumption patterns of cities are closely related to seasonal energy supply plans, these patterns can be utilized in regional energy supply and energy-mix strategies.</div></div>","PeriodicalId":11641,"journal":{"name":"Energy and Buildings","volume":"336 ","pages":"Article 115619"},"PeriodicalIF":6.6,"publicationDate":"2025-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143704557","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Circular deep renovation versus demolition with reconstruction: Environmental and financial evaluation to support decision making in the construction sector","authors":"Lorna Dragonetti ,&nbsp;Dimitra Papadaki ,&nbsp;Cecilia Mazzoli ,&nbsp;Alice Monacelli ,&nbsp;Margarita-Niki Assimakopoulos ,&nbsp;Annarita Ferrante","doi":"10.1016/j.enbuild.2025.115610","DOIUrl":"10.1016/j.enbuild.2025.115610","url":null,"abstract":"<div><div>The European Union’s imperative to achieve climate neutrality by 2050 demands specific intervention for existing buildings. The Pro-GET-onE European project, funded by Horizon 2020, contributes to this agenda by focusing on energy efficiency and seismic resilience through innovative technologies tailored for building envelopes. This strategy was tested on a specific pilot case of a student residence in Athens, Greece, on which an exoskeleton in steel was implemented for both increasing volumes and enhancing the energy and seismic performance of the building. This paper presents comprehensive Life Cycle Assessment (LCA) and Life Cycle Cost (LCC) analyses and a circularity assessment of sustainable strategies for deep renovation and sustainable reconstruction using the <em>One Click LCA</em> tool. Focusing on Global Warming Potential (GWP), this study first assesses the environmental impacts associated with five different construction technologies for demolition with reconstruction scenarios; then, it compares the smartest one with the pre-renovation state, deep renovation scenario, and Pro-GET-onE strategy. This study considers factors such as energy consumption, circularity of materials, and economic feasibility by evaluating different costs, including construction, operation, maintenance, and end-of-life. The environmental impact analysis over 50 years reveals that the renovation scenario minimizes CO₂ emissions due to the reduction of energy consumption; however, it does not provide seismic safety. The economic impact analysis indicates that even with a high initial investment, demolition with reconstruction using Glulam and CLT represents the most cost-effective solution over the building’s lifecycle, providing both high energy and structural performance. In contrast, the deep renovation and Pro-GET-onE scenarios entail higher costs but present numerous advantages, such as low service disruption, avoiding residents’ relocation, and smaller time duration. The conclusions of this study highlight the transformative potential of Pro-GET-onE measures in achieving environmental sustainability and decarbonization. This research underscores the importance of LCC and LCA methodologies in evaluating project feasibility and cost-effectiveness, providing valuable insights for policymakers, building owners, and stakeholders. Understanding the long-term economic and environmental implications of construction and renovation projects is crucial for informed decision-making and guiding the building sector toward its energy efficiency and environmental goals.</div></div>","PeriodicalId":11641,"journal":{"name":"Energy and Buildings","volume":"336 ","pages":"Article 115610"},"PeriodicalIF":6.6,"publicationDate":"2025-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143645114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Corrigendum to “Evaluation of annual and temporal photovoltaic (PV) surplus energy in industrial buildings: A case study of 36 industrial parks in Wuhan, China” [Energy Build. 328 (2025) 115193]","authors":"Wei Liao ,&nbsp;Shen Xu ,&nbsp;Weilin Xie ,&nbsp;Yiwan Wang ,&nbsp;Lin Liu ,&nbsp;Mengju Xie ,&nbsp;Gaomei Li ,&nbsp;Minghao Wang","doi":"10.1016/j.enbuild.2025.115603","DOIUrl":"10.1016/j.enbuild.2025.115603","url":null,"abstract":"","PeriodicalId":11641,"journal":{"name":"Energy and Buildings","volume":"335 ","pages":"Article 115603"},"PeriodicalIF":6.6,"publicationDate":"2025-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143686614","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Cost-effective and low-carbon solutions for holistic rural building renovation in severe cold climate","authors":"Xinyi Hu ,&nbsp;Juha Jokisalo ,&nbsp;Risto Kosonen ,&nbsp;Matti Lehtonen","doi":"10.1016/j.enbuild.2025.115609","DOIUrl":"10.1016/j.enbuild.2025.115609","url":null,"abstract":"<div><div>Rural houses in China’s severe cold climate face pressing challenges due to harsh winter conditions, outdated construction, and inefficient energy systems, leading to high energy costs and poor indoor air quality. This study proposed a holistic renovation approach, incorporating key renovation measures across building envelope upgrade, ventilation improvement, and distributed energy system application. Simulation-based multi-objective optimization was utilized to explore optimal solutions, which balanced two key objectives: minimizing both net present value of life cycle cost and CO₂ emissions of energy use. Future scenarios assessed the sensitivity of optimal solutions to factor changes regarding thermal comfort, economic, and energy environmental impacts. Results indicate that a biomass pellet boiler achieves the greatest emission reduction, followed by PV-combined air-to-water heat pump, natural gas heater, PV-combined electric boiler and electric boiler, lowering CO₂ emissions from 109.4 kg CO₂/m² to 10.7–53.4 kg CO₂/m². The holistic renovation reduces emissions more efficiently than only focusing on envelope upgrades. Cases with heat pump and biomass pellet boiler even show lower life cycle cost than standard envelope renovation. These findings offer valuable insights for decision-makers, supporting the adoption of clean energy solutions in rural areas facing extreme climatic conditions.</div></div>","PeriodicalId":11641,"journal":{"name":"Energy and Buildings","volume":"336 ","pages":"Article 115609"},"PeriodicalIF":6.6,"publicationDate":"2025-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143644895","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Retraction notice to “Hybrid photovoltaic and gravity energy storage integration for smart homes with grid-connected management” [Energy Build. 326 (2025) 114984]","authors":"Fazal Hussain ,&nbsp;Qi Huang ,&nbsp;Jawad Hussain ,&nbsp;Baqir Ali Mirjat ,&nbsp;Kashif Manzoor ,&nbsp;Syed Adrees Ahmed","doi":"10.1016/j.enbuild.2025.115524","DOIUrl":"10.1016/j.enbuild.2025.115524","url":null,"abstract":"","PeriodicalId":11641,"journal":{"name":"Energy and Buildings","volume":"335 ","pages":"Article 115524"},"PeriodicalIF":6.6,"publicationDate":"2025-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143686615","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}