Energy Efficiency最新文献_第9页

Analyzing the implementation of predictive control systems and application of stored data in non-residential buildings 分析非住宅建筑中预测控制系统的实施和存储数据的应用

IF 3.2 4区工程技术

Energy Efficiency Pub Date : 2024-08-22 DOI: 10.1007/s12053-024-10249-2

Marjan Savadkoohi, Marcel Macarulla, Blanca Tejedor, Miquel Casals

{"title":"Analyzing the implementation of predictive control systems and application of stored data in non-residential buildings","authors":"Marjan Savadkoohi, Marcel Macarulla, Blanca Tejedor, Miquel Casals","doi":"10.1007/s12053-024-10249-2","DOIUrl":"10.1007/s12053-024-10249-2","url":null,"abstract":"<div><p>In non-residential buildings, building energy management systems (BEMS) and the application of data hold significant promise in reducing energy consumption. Nevertheless, BEMS have different levels of complexity, benefit, and limitation. Despite the advanced technologies and improvements in building operation, there is a clear gap in the actual performance of buildings that has been attributed to the adoption of advanced technologies. Consequently, there is an increasing need for researchers and practitioners to study current practices in order to identify and address the challenges that compromise the core objectives of BEMS. For this reason, this paper aims to validate three research questions: (i) to examine the current state of BEMS and its functionalities; (ii) to analyze the type of control used; (iii) and to determine the availability of historical data compiled by BEMS and its application in non-residential buildings. A survey of 676 buildings and interviews with building professionals were conducted. The findings confirmed that most of the buildings applied BEMS with scheduled control. In addition, a lack of digitized data for analysis and predictions was detected. Indeed, only 0.60% of the investigated buildings implemented predictive control. Finally, using hierarchical clustering analysis, responses were grouped to analyze similarities between them. The study findings help to develop targeted actions for implementing predictive control in non-residential buildings.</p></div>","PeriodicalId":537,"journal":{"name":"Energy Efficiency","volume":"17 7","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12053-024-10249-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142204927","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Exploring the nuances in citizen willingness-to-invest in renewable energy 探索公民投资可再生能源意愿的细微差别

IF 3.2 4区工程技术

Energy Efficiency Pub Date : 2024-08-16 DOI: 10.1007/s12053-024-10250-9

Evangelia Karasmanaki, Spyridon Galatsidas, Georgios Tsantopoulos

{"title":"Exploring the nuances in citizen willingness-to-invest in renewable energy","authors":"Evangelia Karasmanaki, Spyridon Galatsidas, Georgios Tsantopoulos","doi":"10.1007/s12053-024-10250-9","DOIUrl":"10.1007/s12053-024-10250-9","url":null,"abstract":"<div><p>To overcome financing barriers and to ensure that the progress towards energy transition will continue, alternative financing concepts are required. A promising alternative may be financial citizen participation, where private individuals will contribute to the deployment of renewable energy sources (RES) by investing via various business models and financing concepts. This paper aims to promote energy transition by informing the design of policies and strategies for mobilizing citizen investment. Specific objectives are to investigate citizens’ willingness-to-invest (WTI) and to compare the factors influencing WTI in five renewable types, wind, solar, geothermal, hydroelectric energy and biomass. To meet these objectives, our study collected a representative sample of 1,536 citizens in Greece, an EU member state that stands at a critical point in energy transition due to financing barriers and social opposition to renewable projects. Our results showed that most citizens were willing to invest, but would invest mainly low sums pointing at the need to establish investment mechanisms suitable for citizens. Moreover, the factors influencing willingness-to-invest differ significantly for each renewable type highlighting the need to leverage this differentiation in marketing strategies. While perceived barriers and economic motives were important for almost all renewable types, environmental attitudes were less influential suggesting that strategies using the argument of environmental benefits may be ineffective. Findings from this study provide a precise idea on the factors affecting WTI in five renewable types and can offer significantly higher precision for the design of policies and strategies aiming at mobilizing citizen investment in renewables.</p></div>","PeriodicalId":537,"journal":{"name":"Energy Efficiency","volume":"17 7","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142204928","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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 energy consumption in vertical mobility systems of high-rise office buildings: A case study from a developing economy 高层办公楼垂直移动系统的能耗优化：发展中经济体的案例研究

IF 3.2 4区工程技术

Energy Efficiency Pub Date : 2024-08-14 DOI: 10.1007/s12053-024-10246-5

A. C. H. J. Thebuwena, S. M. Samindi M. K. Samarakoon, R. M. Chandima Ratnayake

{"title":"Optimization of energy consumption in vertical mobility systems of high-rise office buildings: A case study from a developing economy","authors":"A. C. H. J. Thebuwena, S. M. Samindi M. K. Samarakoon, R. M. Chandima Ratnayake","doi":"10.1007/s12053-024-10246-5","DOIUrl":"10.1007/s12053-024-10246-5","url":null,"abstract":"<div><p>Elevator systems serve as the primary mode of transportation in tall buildings which consumes approximately 5–15% of a building's total energy demand. This research explores the potential for energy savings in elevator systems while maintaining passenger comfort through the implementation of green approaches. The research concentrates on a contemporary high-rise office building situated in the central business district of a developing economy. It employs a case study methodology involving traffic simulation to determine optimal elevator specifications for industry-standard service levels. By conducting the simulation, the researchers identified the optimal number of elevators, elevator capacity, speed, and the most suitable elevator management system. Following that, a range of green measures were implemented, including the incorporation of a regenerative system, to effectively reduce the electrical energy consumption of the elevator system. Subsequently, a passenger traffic simulation model was integrated with an energy calculation model to jointly simulate and calculate the elevator system's overall energy consumption and regeneration. The elevator energy requirements were optimized, while maintaining user-friendliness and requirements related to guidelines given in the standards. The results showed that 36% of the energy consumption was reduced by incorporating an energy regenerative option into the elevator system in addition to selecting efficient mechanical components and implementing an efficient elevator traffic management system. This research contributes to the limited body of literature on energy optimization in elevators and emphasizes the importance of balancing energy efficiency with service quality. These findings provide guidance for establishing benchmarks in reducing energy consumption, in relation to elevator systems.</p></div>","PeriodicalId":537,"journal":{"name":"Energy Efficiency","volume":"17 6","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12053-024-10246-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142204943","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Energy efficiency and environmental regulations for mitigating carbon emissions in Chinese Provinces 中国各省降低碳排放的能效和环境法规

IF 3.2 4区工程技术

Energy Efficiency Pub Date : 2024-08-07 DOI: 10.1007/s12053-024-10248-3

Magdalena Radulescu, Javier Cifuentes-Faura, Kamel Si Mohammed, Hind Alofaysan

引用次数: 0

A social network approach to community energy initiative participation 社区能源倡议参与的社会网络方法

IF 3.2 4区工程技术

Energy Efficiency Pub Date : 2024-07-29 DOI: 10.1007/s12053-024-10247-4

Dennis Nientimp, Fleur Goedkoop, Andreas Flache, Jacob Dijkstra

{"title":"A social network approach to community energy initiative participation","authors":"Dennis Nientimp, Fleur Goedkoop, Andreas Flache, Jacob Dijkstra","doi":"10.1007/s12053-024-10247-4","DOIUrl":"10.1007/s12053-024-10247-4","url":null,"abstract":"<div><p>This perspective paper argues how a <i>social network approach</i> can contribute to creating a more comprehensive picture of how individual and community characteristics influence participation in <i>community energy initiatives</i> (CEIs). We argue how social network theory and methods for social network analysis can be utilized to better understand participation. Further, we show how this can potentially aid the implementation of interventions aimed at attracting more participants with more diverse socio-demographic backgrounds. Importantly, we argue that the <i>structure</i> of community social networks connecting (potential) participants could importantly influence whether and how individual and community properties affect CEI participation. Our aim is conveying the social network approach to the field of community energy researchers and stakeholders who might not be familiar with it. We discuss empirical evidence on the effect of network characteristics on CEI participation and the connection between research on CEIs and adjacent fields as a foundation for our claims. We also illustrate how a social network approach might help to overcome biased participation and low participation numbers, by providing social scientists with a tool to give empirically grounded advice to CEIs. We conclude by looking at avenues for future research and discuss how the context of CEIs might yield new theoretical insights and hypotheses.</p></div>","PeriodicalId":537,"journal":{"name":"Energy Efficiency","volume":"17 6","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12053-024-10247-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141869886","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Performance analysis of a new multifunctional aircraft environmental control system under variable operating conditions 新型多功能飞机环境控制系统在可变运行条件下的性能分析

IF 3.2 4区工程技术

Energy Efficiency Pub Date : 2024-07-24 DOI: 10.1007/s12053-024-10245-6

Zhen Shangguan, Xinyi Wei, Hao Peng, Qing Cheng

{"title":"Performance analysis of a new multifunctional aircraft environmental control system under variable operating conditions","authors":"Zhen Shangguan, Xinyi Wei, Hao Peng, Qing Cheng","doi":"10.1007/s12053-024-10245-6","DOIUrl":"10.1007/s12053-024-10245-6","url":null,"abstract":"<div><p>As long-distance flights increase, the widespread use of electric heating for hot water in domestic civil aircraft will pose a challenge to the aircraft's energy systems. Moreover, the aircraft environmental control system operates under variable environmental conditions during aircraft take-off, leading to changes in system performance and outlet parameters. In this paper, mathematical models of the new aircraft environmental control system are established during aircraft take-off, and the main factors affecting the performance of systems are discussed. Results show that hot water with an average temperature of 61 °C can be provided by the new system during aircraft take-off. In the new multi-functional system, the bleed air supply volume during aircraft take-off is less than that of the conventional system, and the system energy loss is also less. When the aircraft just takes off, the condenser accounts for the most significant portion of the system exergy loss. However, the exergy loss in the secondary heat exchanger is the largest, as the aircraft altitude increases. Compared with the conventional system, the exergy efficiency of the new system is 8.85% higher at a 4-5 km level flight, and it’s 3.21% higher at a 9-10 km level flight.</p></div>","PeriodicalId":537,"journal":{"name":"Energy Efficiency","volume":"17 6","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141778743","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Development and experimental assessment of a multi-annual energy monitoring tool to support energy intelligence and management in telecommunication industry 开发多年度能源监测工具并进行实验评估，以支持电信行业的能源情报和管理

IF 3.2 4区工程技术

Energy Efficiency Pub Date : 2024-07-19 DOI: 10.1007/s12053-024-10242-9

Marco Sorrentino, Nicola Franzese, Alena Trifirò

{"title":"Development and experimental assessment of a multi-annual energy monitoring tool to support energy intelligence and management in telecommunication industry","authors":"Marco Sorrentino, Nicola Franzese, Alena Trifirò","doi":"10.1007/s12053-024-10242-9","DOIUrl":"10.1007/s12053-024-10242-9","url":null,"abstract":"<div><p>Carbon-footprint reduction of key industrial buildings is addressed, by proposing methodologies for continuously monitoring telecommunication (TLC) central offices (COs). Main aim is classifying sites according to their efficiency and reliability, via the diagnosis of anomalous electricity consumptions. Such a goal is achieved through the definition of new key performance indicators (KPIs) based on TLC and cooling energy demand, improving the outcomes of pre-existing methods. While the reliability index and index of cluster reliability are specifically proposed to evaluate and physically assess the impact of climate control (CLC, i.e., the parasitic quota) electricity consumption with respect to the TLC one, the here introduced coefficient of variation of telecommunication energy allows for a more solid evaluation of energy measurements reliability. Another target of this study is to extend the afore-mentioned KPIs-based analysis to multi-annual periods of monitoring, thus allowing successfully meeting the currently in-force ISO 50001 standard. Specific central offices were then selected and analyzed to verify the results physical meaning. The method was proven effective in classifying central offices belonging to climate-homogenous fleets, according to the reliability level estimated over a triannual timeframe. Positive impacts in terms of attainable energy saving through improved thermal management, as well as methodology extendibility to other industrial sectors are finally presented and discussed.</p></div>","PeriodicalId":537,"journal":{"name":"Energy Efficiency","volume":"17 6","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12053-024-10242-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141746149","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Expert and operator perspectives on barriers to energy efficiency in data centers 专家和运营商对数据中心能效障碍的看法

IF 3.2 4区工程技术

Energy Efficiency Pub Date : 2024-07-17 DOI: 10.1007/s12053-024-10244-7

Alex C. Newkirk, Nichole Hanus, Christopher T. Payne

{"title":"Expert and operator perspectives on barriers to energy efficiency in data centers","authors":"Alex C. Newkirk, Nichole Hanus, Christopher T. Payne","doi":"10.1007/s12053-024-10244-7","DOIUrl":"10.1007/s12053-024-10244-7","url":null,"abstract":"<div><p>It was last estimated in 2016 that data centers (DCs) comprise approximately 2% of total US electricity consumption. However, this estimate is currently being updated to account for the massive increase in computing needs due to streaming, cryptocurrency, and artificial intelligence (AI). To prevent energy consumption that tracks with increasing computing needs, it is imperative we identify energy efficiency strategies and investments beyond the low-hanging fruit solutions. In a two-phased research approach, we ask: What non-technical barriers still impede energy efficiency (EE) practices and investments in the data center sector, and what can be done to overcome these barriers? In particular, we are focused on social and organizational barriers to EE. In Phase I, we performed a literature review and found that technical solutions are abundant in the literature, but fail to address the top-down cultural shifts that need to take place in order to adapt new energy efficiency strategies. In Phase II, reported here, we interviewed 16 data center operators/experts to ground-truth our literature findings. Our interview protocols focus on three aspects of DC decision-making: procurement practices, metrics and monitoring, and perceived barriers to energy efficiency. We find that vendors are the key drivers of procurement decisions, advanced efficiency metrics are facility-specific, and there is convergence in the design of advanced facilities due to the heat density of parallelized infrastructure. Our ultimate goals for our research are to design DC decarbonization policies that target organizational structure, empower individual staff, and foster a supportive external market.</p></div>","PeriodicalId":537,"journal":{"name":"Energy Efficiency","volume":"17 6","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12053-024-10244-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141720363","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Facilitating circularity in city governance in the Republic of Serbia: a novel approach to modeling of energy efficiency big data mining 促进塞尔维亚共和国城市治理的循环性：能源效率大数据挖掘建模的新方法

IF 3.2 4区工程技术

Energy Efficiency Pub Date : 2024-07-15 DOI: 10.1007/s12053-024-10243-8

Mirjana Radovanović, Sanja Filipović, Goran Šimić

{"title":"Facilitating circularity in city governance in the Republic of Serbia: a novel approach to modeling of energy efficiency big data mining","authors":"Mirjana Radovanović, Sanja Filipović, Goran Šimić","doi":"10.1007/s12053-024-10243-8","DOIUrl":"10.1007/s12053-024-10243-8","url":null,"abstract":"<div><p>Efficient use of energy and other resources, as the basic postulates of the circular economy, is a prerequisite for the green transition to more sustainable cities in the future. The main scientific goal of the paper is the development of a new approach to city governance when it comes to the inefficient use of energy, predominantly fossil fuels, mainly in developing and poor countries. Energy efficiency problems faced by these countries require the introduction of urgent, applicable, and realistically achievable solutions. A prerequisite for adequate analysis and modeling of energy efficiency performance, measures, policies, outcomes, and impacts is the introduction and functioning of the big data management system, which should begin with data mining. On the other hand, adequate data collection has been neglected in many of these countries. The study shows a way to reduce this gap, but in accordance with realistic and limited possibilities for countries with less favorable conditions. In that respect, a conceptual model for the <b><i>Analytical Service for facilitating energy efficiency in city governance</i></b> was developed and presented as a driver that can enable cities to manage energy more efficiently. The model is based on an interdisciplinary approach and on the needs of cities in the Republic of Serbia. However, it is designed to allow upgrading in accordance with the capabilities and resources of cities, primarily applicable in developing and poor countries.</p></div>","PeriodicalId":537,"journal":{"name":"Energy Efficiency","volume":"17 6","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12053-024-10243-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141647200","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

The impact of higher utility costs on firm performance in the manufacturing sector: the case of an emerging economy 公用事业成本上升对制造业企业绩效的影响：一个新兴经济体的案例

IF 3.2 4区工程技术

Energy Efficiency Pub Date : 2024-07-05 DOI: 10.1007/s12053-024-10239-4

David Orțan

引用次数: 0