Energy and Buildings最新文献_第9页

Electric Vehicle integration in Zero-Carbon Buildings: Analyzing the impact on carbon emissions and economic performance 零碳建筑中的电动汽车集成：对碳排放和经济绩效的影响分析

IF 6.6 2区工程技术

Energy and Buildings Pub Date : 2025-04-02 DOI: 10.1016/j.enbuild.2025.115674

Yuying Sun , Yinglong Wang , Xinyan Yang , Wei Wang , Wei Zhao , Qingdong Zhang , Jiangang Yao , Can Chen , Wenzhe Wei

{"title":"Electric Vehicle integration in Zero-Carbon Buildings: Analyzing the impact on carbon emissions and economic performance","authors":"Yuying Sun , Yinglong Wang , Xinyan Yang , Wei Wang , Wei Zhao , Qingdong Zhang , Jiangang Yao , Can Chen , Wenzhe Wei","doi":"10.1016/j.enbuild.2025.115674","DOIUrl":"10.1016/j.enbuild.2025.115674","url":null,"abstract":"<div><div>The widespread adoption of electric vehicles (EVs) offers a promising solution to mitigate the supply–demand energy mismatch in buildings. However, existing studies have focused on the economic benefits of integrating EVs into buildings, with limited guidance on their application in promoting zero-carbon building development. To fill this gap, this study proposes a dual-layer optimization approach combining day-ahead EV scheduling and V2B bidirectional charger configuration, targeting both economic and carbon emissions objectives. This approach was applied to a typical zero-carbon building in Beijing, China, and a multi-time-scale analysis was conducted to explore the changes in economic cost and carbon emissions with varying configuration of EV chargers. Results show that optimizing for economic benefits can reduce costs by up to 25.38%, but at the cost of a 17.03% increase in carbon emissions. Conversely, prioritizing carbon emissions leads to a reduction of up to 12.47%, but with more modest economic savings of 12.08%. These findings highlight the importance of balancing carbon emissions reduction with cost efficiency when defining optimization objectives. Strict carbon reduction targets require constraints on EV charging behaviors, potentially compromising economic benefits. Furthermore, the study reveals that, under current electricity prices and battery costs, effective peak-valley arbitrage using EVs remains challenging.</div></div>","PeriodicalId":11641,"journal":{"name":"Energy and Buildings","volume":"338 ","pages":"Article 115674"},"PeriodicalIF":6.6,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143816063","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}

引用次数: 0

Design and validation of thermal comfort questionnaire using exploratory and confirmatory factor analyses 采用探索性因子分析和验证性因子分析设计并验证热舒适问卷

IF 6.6 2区工程技术

Energy and Buildings Pub Date : 2025-04-02 DOI: 10.1016/j.enbuild.2025.115676

A. Luparelli , P. Papadopoulos , I. Kyprianou , S. Erba , A. Ingrosso , S. Carlucci

{"title":"Design and validation of thermal comfort questionnaire using exploratory and confirmatory factor analyses","authors":"A. Luparelli , P. Papadopoulos , I. Kyprianou , S. Erba , A. Ingrosso , S. Carlucci","doi":"10.1016/j.enbuild.2025.115676","DOIUrl":"10.1016/j.enbuild.2025.115676","url":null,"abstract":"<div><div>Within the field of indoor environmental quality, several objective and subjective techniques have been developed to monitor conditions and provide user feedback. One such approach features occupant-centred questionnaires, indicating different aspects of comfort, including thermal, visual, acoustic or related to air quality. This study introduces the development and validation of such a questionnaire to optimise its completion rate and meaningfulness. Exploration and confirmatory analysis techniques were applied to identify the questionnaire’s underlying structures, and the models’ reliability and validation secured the validity of our findings. Questionnaire factors appeared to be connected to different aspects of temperature and humidity, each accounting for a significant portion of response variability, indicating that the questionnaire items effectively capture multiple dimensions within these constructs. The proposed thermal comfort questionnaire was also found to be reliable, with room for improvement through additional testing of individual elements. Overall, the questionnaire serves its intended purpose and can be used in subsequent analysis to improve the indoor environments of building occupants. The validation logic presented here, an essential step in the process of monitoring and building improvements, can serve as a set of guidelines and be replicated by other studies employing subjective feedback collection in the indoor environmental quality realm.</div></div>","PeriodicalId":11641,"journal":{"name":"Energy and Buildings","volume":"337 ","pages":"Article 115676"},"PeriodicalIF":6.6,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143777490","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}

引用次数: 0

A review on hygrothermal transfer behavior and optimal design of building greenery with integrated photovoltaic systems 光伏一体化建筑绿化系统的热湿传递特性及优化设计综述

IF 6.6 2区工程技术

Energy and Buildings Pub Date : 2025-04-02 DOI: 10.1016/j.enbuild.2025.115698

Mengmeng Dai , Yang He , Yongfa Diao , Yulu Chen , Haifeng Cui , Chaoen Li , Jialei Lu , Zhehua Li , Chun Liang Tan

{"title":"A review on hygrothermal transfer behavior and optimal design of building greenery with integrated photovoltaic systems","authors":"Mengmeng Dai , Yang He , Yongfa Diao , Yulu Chen , Haifeng Cui , Chaoen Li , Jialei Lu , Zhehua Li , Chun Liang Tan","doi":"10.1016/j.enbuild.2025.115698","DOIUrl":"10.1016/j.enbuild.2025.115698","url":null,"abstract":"<div><div>In the context of urban heat island effect and carbon–neutral goal, building greenery with integrated photovoltaic (BGIPV) systems provide multiple benefits for sustainable urban development and received more and more attention as an innovative building skin solution in recent years. This review first outlined the historic evolution of BGIPV system, tracing its journey from initial conceptualization and technological research to practical application. And then the hygrothermal transfer behavior of BGIPV system were comprehensively examined from the following three aspects: 1) hygrothermal environment and vegetation condition of greenery systems, 2) photovoltaic power generation efficiency, and 3) water balance of systems. Subsequently, the energy balance and the commonly used thermal performance simulation models for BGIPV system were analyzed and compared. Considering the synergistic effect between PV and vegetation, a summary of the performance optimization studies for BGIPV system was also provided. And it can be found that the thermal interaction between photovoltaic modules and vegetation exhibits dynamic variations under different climatic and spatial configuration conditions, leading to uncertainties in the overall performance of BGIPV systems. Therefore, the interaction mechanism between photovoltaic modules and vegetation should be further clarified for the accurate performance prediction and design optimization. Finally, prospects were proposed from different aspects, aiming to provide reference for future research and development of BGIPV systems.</div></div>","PeriodicalId":11641,"journal":{"name":"Energy and Buildings","volume":"337 ","pages":"Article 115698"},"PeriodicalIF":6.6,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143783112","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}

引用次数: 0

Green hydrogen-powered air conditioning system for hot climates: Performance and economic analysis 用于炎热气候的绿色氢动力空调系统：性能和经济分析

IF 6.6 2区工程技术

Energy and Buildings Pub Date : 2025-04-01 DOI: 10.1016/j.enbuild.2025.115697

M. Ismail , A.W. Kandeal , Swellam W. Sharshir , N.S. Abd EL-Gawaad , Areej Al Bahir , Mohamed Nasser

{"title":"Green hydrogen-powered air conditioning system for hot climates: Performance and economic analysis","authors":"M. Ismail , A.W. Kandeal , Swellam W. Sharshir , N.S. Abd EL-Gawaad , Areej Al Bahir , Mohamed Nasser","doi":"10.1016/j.enbuild.2025.115697","DOIUrl":"10.1016/j.enbuild.2025.115697","url":null,"abstract":"<div><div>The global community is shifting toward sustainable and clean energy solutions to combat climate change and fossil fuel depletion, particularly for high-consumption systems such as air conditioning (AC). This work addresses this problem by proposing and evaluating a green hydrogen-powered AC system for Saudi Arabia’s extreme climate conditions and comparing it with a grid-powered AC system. The proposed system integrates photovoltaic (PV) panels, an electrolyzer, hydrogen storage, and a fuel cell in a unique setting that stores excess solar energy from winter months to power AC during summer nights and periods of insufficient solar radiation. Through comprehensive simulation modeling using actual Riyadh, Saudi Arabia, weather data, the performance of both AC units, including electricity demand, cost analysis, and environmental analysis, are conducted. The findings demonstrate that the hydrogen-powered system successfully meets 100 % of the AC electricity demand while producing 74.83 kg of hydrogen annually with 6.1 kg excess capacity. Economic analysis reveals a competitive levelized cost of electricity (0.071 $/kWh), a levelized cost of hydrogen (5.68 $/kg), and a reasonable payback period of 12.11 years. The principal environmental benefit is eliminating the 1,244 kg CO<sub>2</sub>-equivalent annual emissions associated with the tested conventional grid-powered system.</div></div>","PeriodicalId":11641,"journal":{"name":"Energy and Buildings","volume":"337 ","pages":"Article 115697"},"PeriodicalIF":6.6,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143768821","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}

引用次数: 0

Establishment and validation of a novel composite index for energy efficiency evaluation of data center chilled water systems based on AHP and Entropy Weight Method 基于AHP和熵权法的数据中心冷冻水系统能效评价复合指标的建立与验证

IF 6.6 2区工程技术

Energy and Buildings Pub Date : 2025-04-01 DOI: 10.1016/j.enbuild.2025.115677

Chengliang Xu, Chen Xu, lei Zhan, Guannan Li

{"title":"Establishment and validation of a novel composite index for energy efficiency evaluation of data center chilled water systems based on AHP and Entropy Weight Method","authors":"Chengliang Xu, Chen Xu, lei Zhan, Guannan Li","doi":"10.1016/j.enbuild.2025.115677","DOIUrl":"10.1016/j.enbuild.2025.115677","url":null,"abstract":"<div><div>Data centers typically use various energy efficiency indicators to assess performance from multiple perspectives, such as overall energy efficiency or the performance of subsystems and components. However, due to the differing focus of these indicators, such as those used to evaluate the basic equipment in chilled water systems, it is challenging to directly compare the comprehensive performance of data center chilled water systems based on the evaluation results. To address this challenge, this study proposes a comprehensive index, PCC (Performance of Composite Chilled water system in Data Centers), based on the Analytic Hierarchy Process (AHP) and the Entropy Weight Method, which integrates basic energy efficiency indicators to provide a comprehensive evaluation of the chilled water system’s energy efficiency. The basic energy efficiency indicators exhibit variability under different operating conditions, and the hybrid AHP-Entropy Weight Method balances the weights of these indicators, combining them into PCC. The proposed PCC was validated using a chilled water system simulation model built in TRNSYS. The results show that, compared to the Power Usage Effectiveness (PUE) of data centers and commonly used evaluation indicators for chilled water system, PCC is capable of evaluating the comprehensive energy efficiency of the chilled water system ’s basic equipment. Moreover, when operating conditions change, the average Relative Change Rate (RCR) of the PCC evaluation results can be up to 21 times higher than that of the PUE’s RCR, and up to 3 times higher than that of the commonly used chilled water system efficiency indicators’ RCR. The high sensitivity (RCR) of PCC can assist identify optimization potential within control strategies for data center chilled water systems.</div></div>","PeriodicalId":11641,"journal":{"name":"Energy and Buildings","volume":"337 ","pages":"Article 115677"},"PeriodicalIF":6.6,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143768822","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}

引用次数: 0

Optimal planning of building integrated photovoltaic windows through room-level economic analysis 通过房间级经济分析，对建筑一体化光伏窗进行优化规划

IF 6.6 2区工程技术

Energy and Buildings Pub Date : 2025-03-31 DOI: 10.1016/j.enbuild.2025.115690

Seunghoon Jung , Soojong Han , Jaewon Jeoung , Sungchul Kim , Taehoon Hong , Jun-Ki Choi , Minhyun Lee

{"title":"Optimal planning of building integrated photovoltaic windows through room-level economic analysis","authors":"Seunghoon Jung , Soojong Han , Jaewon Jeoung , Sungchul Kim , Taehoon Hong , Jun-Ki Choi , Minhyun Lee","doi":"10.1016/j.enbuild.2025.115690","DOIUrl":"10.1016/j.enbuild.2025.115690","url":null,"abstract":"<div><div>Building-integrated photovoltaic (BIPV) window systems have significant potential to enhance energy efficiency and enable the realization of Net Zero-Energy Buildings (NZEB) in urban settings. However, their adoption is often impeded by high initial investment costs and the complex effect of surrounding buildings on performance. Accordingly, this study proposes a room-level optimal planning framework for BIPV window systems that incorporates the effects of shading and reflective radiation from surrounding buildings to maximize economic feasibility. The framework integrates energy simulations conducted with DesignBuilder and EnergyPlus, along with a genetic algorithm (GA)-based optimization model to identify the optimal type and installation timing of BIPV windows for individual rooms within a building. A case study was conducted on a 20-story residential building in Seoul, South Korea, located in a dense urban environment. The results demonstrate that the room-level optimal planning approach significantly improves economic returns by up to 20.49% compared to conventional planning methods that apply the same strategy across all rooms. The proposed framework offers practical implications for building owners, designers, and policymakers, providing a data-driven methodology to optimize BIPV adoption and support more economically viable decision-making in high-density urban environments.</div></div>","PeriodicalId":11641,"journal":{"name":"Energy and Buildings","volume":"337 ","pages":"Article 115690"},"PeriodicalIF":6.6,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143760509","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}

引用次数: 0

An analytical solution to the radiation-convective heat transfer in a parallel-plates direct absorption solar heat collection duct 平行板直接吸收式太阳能集热管道辐射-对流换热的解析解

IF 6.6 2区工程技术

Energy and Buildings Pub Date : 2025-03-31 DOI: 10.1016/j.enbuild.2025.115675

Chao-Hua Peng, Chuan-Shuai Dong, Li-Zhi Zhang

{"title":"An analytical solution to the radiation-convective heat transfer in a parallel-plates direct absorption solar heat collection duct","authors":"Chao-Hua Peng, Chuan-Shuai Dong, Li-Zhi Zhang","doi":"10.1016/j.enbuild.2025.115675","DOIUrl":"10.1016/j.enbuild.2025.115675","url":null,"abstract":"<div><div>Parallel-plates direct absorption solar heat collection (DASC) duct, as a basic and elementary structure for photo-thermal conversion, has great potentials in the applications of building solar heat collection. Traditionally, performance analysis of such a duct needs to solve the complete radiation-convection heat transfer equations in the duct, which requires considerable computational costs. Besides, it is difficult to be used in system optimization because of the unclear roles played by the numerous influencing factors. To solve this problem, in this study, a dimensionless parameter, conductive to convective heat transport ratio (the ratio of ability for thermal conductions to that for thermal convections in the duct, <em>θ</em>), is proposed. In analogy to common heat exchanger ducts, an analytical model based on heat collecting effectiveness-conductive to convective heat transport ratio, is solved for the radiation-convective heat transfer in a DASC duct. Different forms of effectiveness-conductive to convective heat transport ratios are depended on different duct penetration ratios (<em>α</em>) and substrate absorption coefficients (<em>χ</em><sub>plate</sub>)<em>.</em> Then, the effectiveness-conductive to convective heat transport ratio correlations are validated by numerical simulations and experimental results. The largest relative deviation between the new model and the traditional method is smaller than 5%, which shows the excellent accuracy of the new model. Lastly, parametric analysis is conducted to evaluate the influences of operating parameters, nanofluids and substrate properties on system performance.</div></div>","PeriodicalId":11641,"journal":{"name":"Energy and Buildings","volume":"337 ","pages":"Article 115675"},"PeriodicalIF":6.6,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143768817","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}

引用次数: 0

Dynamic heat transfer and electric energy consumption performance of dry floor heating systems mixed with low-cost phase-change material and activated carbon for field application 低成本相变材料与活性炭混合干式地暖系统的动态传热与电能消耗性能

IF 6.6 2区工程技术

Energy and Buildings Pub Date : 2025-03-31 DOI: 10.1016/j.enbuild.2025.115694

Donghui Seo, Su-Gwang Jeong

{"title":"Dynamic heat transfer and electric energy consumption performance of dry floor heating systems mixed with low-cost phase-change material and activated carbon for field application","authors":"Donghui Seo, Su-Gwang Jeong","doi":"10.1016/j.enbuild.2025.115694","DOIUrl":"10.1016/j.enbuild.2025.115694","url":null,"abstract":"<div><div>The growing energy deficit has amplified the necessity for exploring alternatives to fulfill essential energy requirements, which have been consistently increasing. To meet energy demands, integrating latent heat storage technology using phase change materials (PCMs) with radiant floor heating systems (RFS) has garnered increasing attention for enhancing energy storage efficiency, achieving significant energy savings, and improving indoor thermal comfort. To address the shortcomings of phase change materials (PCMs), such as phase leakage and low thermal conductivity, this study developed a thermal storage floor heating layer using activated carbon (AC) and Paraffin wax (ACP), analyzing its thermal performance and energy consumption within a dry floor heating system. The thermal performance analysis showed that the latent heat of ACP, vacuum-impregnated with AC and Paraffin wax, was 60.7 % lower than that of pure Paraffin wax due to the PCM mixing ratio. Thermogravimetric analysis revealed that 66.18 % of the ACP mass remained after the first peak, with an additional 8.5 % weight loss at 600 °C, leaving 33.82 %, indicating that while AC experienced weight loss, ACP demonstrated greater heat durability compared to Paraffin wax. A dynamic heat transfer performance analysis using various finishing materials showed that linoleum had the smallest surface temperature deviation at 1.7 °C, effectively minimizing the surface temperature variation of the PCM linear heating type dry floor heating system compared to other materials. To reduce the surface temperature deviation of the PCM linear heating type dry floor heating system, the dynamic heat transfer performance was analyzed by applying a PCM container to the film dry floor heating system. The results confirmed that the PCM film dry floor heating has a lower surface temperature deviation than wet floor heating, which can address the shortcomings of linear heat-based floor heating.</div></div>","PeriodicalId":11641,"journal":{"name":"Energy and Buildings","volume":"337 ","pages":"Article 115694"},"PeriodicalIF":6.6,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143760407","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}

引用次数: 0

Impact of roof watering on urban cooling during heat waves 热浪期间屋顶浇水对城市降温的影响

IF 6.6 2区工程技术

Energy and Buildings Pub Date : 2025-03-31 DOI: 10.1016/j.enbuild.2025.115693

Maxime Chaumont , Frédéric Filaine , Sophie Parison , Martin Hendel , Laurent Royon

{"title":"Impact of roof watering on urban cooling during heat waves","authors":"Maxime Chaumont , Frédéric Filaine , Sophie Parison , Martin Hendel , Laurent Royon","doi":"10.1016/j.enbuild.2025.115693","DOIUrl":"10.1016/j.enbuild.2025.115693","url":null,"abstract":"<div><div>Due to their morphology, lack of vegetation and the materials used, cities overheat compared to their natural surroundings. This phenomenon, coupled with heatwaves, can cause public health problems and increased energy consumption. In response, public authorities are deploying a range of cooling techniques, such as vegetation, reflective materials and urban watering. In response, various cooling techniques are deployed by public authorities. This study focuses on the cooling effects of roof watering conducted in a lab-scale experiment under heatwave conditions. The experimental set-up includes a temperature and humidity-controlled climate chamber with a solar simulator and a watering system to analyse the thermal and microclimatic behavior of different roof structures. Temperature, heat flow and the surface heat balance are measured or calculated to this aim. When the watering rate is sufficient, regardless of the roof sample studied, convective exchanges become negative during the day. As the surface temperature of the roof is lower than that of the outside air, the latter is cooled on contact with the roof. On the other hand, watering has a different impact depending on the position of the insulation in the roof structure. For external thermal insulation (ETI), watering cools the air both day and night. For internal thermal insulation (ITI), watering significantly reduces the heat stored during the day and therefore the amount of heat released at night. For these structures, watering cools the air during the day and limits their contribution to nighttime urban heat island (UHI). This study also shows that there is a different optimum watering rate for each structure, which maximizes the cooling effects of watering while minimizing water consumption. Finally, watering applied to cool roofs reduces the water consumption associated with this cooling technique, while being highly effective in moderating urban overheating during heatwaves.</div></div>","PeriodicalId":11641,"journal":{"name":"Energy and Buildings","volume":"337 ","pages":"Article 115693"},"PeriodicalIF":6.6,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143768820","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}

引用次数: 0

Enhancing building cooling efficiency with water-active PCM panels and displacement ventilation in hot climates 在炎热的气候条件下，通过水活性PCM面板和置换通风提高建筑冷却效率

IF 6.6 2区工程技术

Energy and Buildings Pub Date : 2025-03-30 DOI: 10.1016/j.enbuild.2025.115688

Osama Sabah Almtuly , Mazlan Abdul Wahid , Hasanen M. Hussen , Mohd Ibthisham Ardani , Keng Yinn Wong , Ihab Hasan Hatif

{"title":"Enhancing building cooling efficiency with water-active PCM panels and displacement ventilation in hot climates","authors":"Osama Sabah Almtuly , Mazlan Abdul Wahid , Hasanen M. Hussen , Mohd Ibthisham Ardani , Keng Yinn Wong , Ihab Hasan Hatif","doi":"10.1016/j.enbuild.2025.115688","DOIUrl":"10.1016/j.enbuild.2025.115688","url":null,"abstract":"<div><div>Buildings in extremely hot climates have high energy demands and carbon emissions due to intensive cooling requirements, emphasizing the need for innovative, energy-efficient cooling solutions. This study introduces and evaluates the performance of a novel cooling system that integrates phase change material (PCM) into water-active ceiling panels combined with displacement ventilation (DV). The PCM used in this study is sourced from waste petroleum products, making it abundant and cost-effective. Using full-scale experiments and CFD simulations, this research assesses the system’s impact on cooling energy consumption, thermal comfort, and indoor air quality, comparing it to conventional cooling systems. The results show that the novel system reduces indoor air temperature peaks by up to 3.5 °C, enhances thermal comfort, and lowers cooling energy consumption, achieving monthly energy savings of up to 32 %. The PCM ceiling panels also reduce peak power usage and overall energy demands through efficient heat storage and re-solidification cycles, enabling shorter cooling operating times. Furthermore, the combined PCM-DV system delivers stable, uniform indoor temperatures, improving occupant comfort and enhancing indoor air quality. This study demonstrates the potential of PCM-enhanced cooling systems in extremely hot climates and provides actionable insights for energy-efficient building strategies in arid regions.</div></div>","PeriodicalId":11641,"journal":{"name":"Energy and Buildings","volume":"337 ","pages":"Article 115688"},"PeriodicalIF":6.6,"publicationDate":"2025-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143739285","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}

引用次数: 0