scholarly journals CISBAT 2021 International Hybrid Conference Carbon Neutral Cities – Energy Efficiency & Renewables in the Digital Era

2021 ◽  
Vol 2042 (1) ◽  
pp. 011001
Author(s):  
Prof. Dr Jean-Louis Scartezzini ◽  
Barbara Smith
Keyword(s):  
Energy Efficiency ◽  
Editorial Committee ◽  
Energy Applications ◽  
Digital Era ◽  
Scientific Exchange ◽  
Urban Energy ◽  
Machine Learning Applications ◽  
Convention Center ◽  
Carbon Neutral ◽  
École Polytechnique

Preface to the CISBAT 2021 Journal of Physics: Conference Series special issue CISBAT 2021 took place from 8 to 10 September 2021 online and at the Swiss Tech Convention Center on the campus of the Ecole Polytechnique Fédérale de Lausanne (EPFL) in Switzerland under the heading "Carbon Neutral Buildings - Energy Efficiency & Renewables in the Digital Era". Focused on energy efficiency and the use of renewables in buildings and cities, CISBAT bi-annually offers a dynamic platform for scientific exchange in fields ranging from nanostructured materials for renewable energy applications to urban energy systems. While recent editions have seen machine learning applications for the built environment receive ever greater attention, CISBAT 2021 has further extended its reach to include research promoting circular economy, thus offering insights into a broad range of fields that ultimately have the same target: carbon-free, sustainable buildings and cities. List of Editorial Committee, Organising Committee, Programming Committee, Scientific Committee, Academic Partners, Session chairs, Invited speakers, Sponsors are available in this pdf.

A method for energy efficiency assessment during urban energy planning

2014 ◽  
Vol 3 (2) ◽  
pp. 132-152 ◽  
Author(s):  
Karin Regina de Casas Castro Marins
Keyword(s):  
Energy Efficiency ◽  
Urban Areas ◽  
Energy Use ◽  
Energy Performance ◽  
Urban Morphology ◽  
Pollutant Emissions ◽  
Energy Planning ◽  
Bottom Up ◽  
Content Type ◽  
Urban Energy

Purpose – Energy use in urban areas has turned a subject of local and worldwide interest over the last few years, especially emphasized by the correlated greenhouse gases emissions. The purpose of this paper is to analyse the overall energy efficiency potential and emissions resulting from integrated solutions in urban energy planning, in the scale of districts and neighbourhoods in Brazil. Design/methodology/approach – The approach is based on the description and the application of a method to analyse energy performance of urban areas and support their planning. It is a quantitative bottom-up method and involves urban morphology, urban mobility, buildings and energy supply systems. Procedures are applied to the case study of Agua Branca urban development area, located in Sao Paulo, Brazil. Findings – In the case of Agua Branca area, energy efficiency measures in buildings have shown to be very important mostly for the buildings economies themselves. For the area as a whole, strategies in promoting public transport are more effective in terms of energy efficiency and also to decrease pollutant emissions. Originality/value – Literature review has shown there is a lack of approaches and procedures able to support urban energy planning at a community scale. The bottom-up method presented in this paper integrates a plenty of disaggregated and multisectoral parameters at the same stage in urban planning and shows that is possible to identify the most promising actions by building overall performance indexes.

Relevance of Chemically Functionalized Nano-Fillers and Modified Nanocomposite in Energy Systems

2019 ◽  
pp. 10-65 ◽  
Author(s):  
Damilola Elizabeth Babatunde ◽  
Iheanacho Henry Denwigwe ◽  
Olubayo Moses Babatunde ◽  
Oluranti Agboola ◽  
Gbemisola Deborah Akinsipe
Keyword(s):  
Energy Efficiency ◽  
Energy Storage ◽  
Energy Saving ◽  
Alternative Energy ◽  
Energy Systems ◽  
Review Article ◽  
Polymeric Matrices ◽  
Energy Applications ◽  
Improved Performance

Reliable energy systems and advances in nanotechnology together will play key role in channeling future cutting edge inventions and developments in all spheres. In this review article, the pertinence of functionalizing nanofillers and modifying nanocomposites for improved performance in various energy applications such as energy conversion, energy efficiency, energy storage, alternative energy and energy saving are expounded. This article also presents structures and unique properties of commonly used nanofillers; advances, improvement potentials and characterization of nanocomposites used in energy systems. Theoretical and experimental literature reviewed revealed that nanofillers engender improved properties in polymeric matrices. Functionalization is applicable to all types of nanofillers in use today, a number of functionalized nanofillers are already commercially available; and more extensive research is needed to achieve optimal improved results with the use of nanofillers and nanocomposites in various fields of applications.

Relevance of Chemically Functionalized Nano-Fillers and Modified Nanocomposite in Energy Systems

2021 ◽  
pp. 1854-1909
Author(s):  
Damilola Elizabeth Babatunde ◽  
Iheanacho Henry Denwigwe ◽  
Olubayo Moses Babatunde ◽  
Oluranti Agboola ◽  
Gbemisola Deborah Akinsipe
Keyword(s):  
Energy Efficiency ◽  
Energy Storage ◽  
Energy Saving ◽  
Alternative Energy ◽  
Energy Systems ◽  
Review Article ◽  
Polymeric Matrices ◽  
Energy Applications ◽  
Improved Performance

Reliable energy systems and advances in nanotechnology together will play key role in channeling future cutting edge inventions and developments in all spheres. In this review article, the pertinence of functionalizing nanofillers and modifying nanocomposites for improved performance in various energy applications such as energy conversion, energy efficiency, energy storage, alternative energy and energy saving are expounded. This article also presents structures and unique properties of commonly used nanofillers; advances, improvement potentials and characterization of nanocomposites used in energy systems. Theoretical and experimental literature reviewed revealed that nanofillers engender improved properties in polymeric matrices. Functionalization is applicable to all types of nanofillers in use today, a number of functionalized nanofillers are already commercially available; and more extensive research is needed to achieve optimal improved results with the use of nanofillers and nanocomposites in various fields of applications.

scholarly journals Exploring Carbon Neutral Potential in Urban Densification: A Precinct Perspective and Scenario Analysis

2020 ◽  
Vol 12 (12) ◽  
pp. 4814
Author(s):  
Bin Huang ◽  
Ke Xing ◽  
Stephen Pullen ◽  
Lida Liao
Keyword(s):  
Energy Efficiency ◽  
Renewable Energy ◽  
Scenario Analysis ◽  
Carbon Emissions ◽  
Assessment Model ◽  
Total Carbon ◽  
Carbon Reduction ◽  
Carbon Neutrality ◽  
Carbon Neutral ◽  
Carbon Performance

Decarbonising the urban built environment for reaching carbon neutrality is high on the agenda for many cities undergoing rapid expansion and densification. As an important urban form, precincts have been increasingly focused on as the context for urban redevelopment planning and at the forefront for trialling carbon reduction measures. However, due to interplays between the built forms and the occupancy, the carbon performance of a precinct is significantly affected by morphological variations, demographical changes, and renewable energy system deployment. Despite much research on the development of low-carbon precincts, there is limited analysis on aggregated effects of population growth, building energy efficiency, renewable energy penetration, and carbon reduction targets in relation to precinct carbon signature and carbon neutral potential for precinct redevelopment and decarbonisation planning. In this paper, an integrated carbon assessment model, including overall precinct carbon emissions and carbon offset contributed by precinct-scale renewable energy harvesting, is developed and applied to examine the lifecycle carbon signature of urban precincts. Using a case study on a residential precinct redevelopment, scenario analysis is employed to explore opportunities for decarbonising densification development and the carbon neutral potential. Results from scenario analysis indicate that redevelopment of buildings with higher-rated energy efficiency and increase of renewable energy penetration can have a long term positive impact on the carbon performance of urban precincts. Meanwhile, demographical factors in precinct evolution also have a strong influence on a precinct’s carbon neutral potential. Whilst population size exerts upward pressure on total carbon emissions, changes in family types and associated consumption behaviour, such as travelling, can make positive contributions to carbon reduction. The analysis also highlights the significance of embodied carbon to the total carbon signature and the carbon reduction potential of a precinct during densification, reinforcing the notion that “develop with less” is as important as carbon offsetting measures for decarbonising the precinct toward carbon neutrality.

scholarly journals Supporting Urban Energy Efficiency with Volunteered Roof Information and the Google Maps API

2014 ◽  
Vol 6 (10) ◽  
pp. 9691-9711 ◽  
Author(s):  
Bilal Abdulkarim ◽  
Rustam Kamberov ◽  
Geoffrey Hay
Keyword(s):  
Energy Efficiency ◽  
Google Maps ◽  
Urban Energy

Design of Carbon-Neutral Residential Communities in Kuwait

2017 ◽  
Vol 139 (3) ◽  
Author(s):  
Baqer Ameer ◽  
Moncef Krarti
Keyword(s):  
Energy Efficiency ◽  
Renewable Energy ◽  
Wind Turbines ◽  
Renewable Energy Technologies ◽  
Energy Efficiency Measures ◽  
Energy Technologies ◽  
Residential Communities ◽  
Efficiency Measures ◽  
Energy Needs ◽  
Carbon Neutral

In this paper, a general methodology for designing carbon-neutral residential communities is presented. Both energy efficiency measures and renewable energy technologies are considered in the design approach. First, energy end-uses for the buildings within the community are optimized based on a set of cost-effective energy efficiency measures that are selected based on a life-cycle cost analysis. Then, renewable energy technologies are considered to meet the energy needs for the residential community and ensure carbon-neutrality on an annual basis. The methodology is applied to design optimal and carbon-neutral hybrid electrical generation systems for three Kuwaiti residential communities with different sizes and energy efficiency designs. For Kuwait, it is found that wind turbines can cost-effectively generate significant electricity to meet most of the energy needs for the residential communities and thus reducing the country's reliance on fuel-based power plants. Specifically, it is found that wind turbines can generate electricity at a cost of $0.068/kWh well below the current grid power production costs of $0.103/kWh. Moreover, the analysis indicates that concentrated solar power (CSP) can be utilized to achieve carbon-neutral residential communities but at a levelized energy cost of $0.13/kWh slightly lower than the current grid power generation and distribution costs of $0.133/kWh.

scholarly journals Measurement and Analysis of Urban Total Factor Energy Efficiency in China

2021 ◽  
Vol 261 ◽  
pp. 01020
Author(s):  
Feifei Lu ◽  
Yinling Lu ◽  
Na Lei
Keyword(s):  
Energy Efficiency ◽  
Technological Progress ◽  
High Efficiency ◽  
Malmquist Index ◽  
Coastal Areas ◽  
Central China ◽  
Measurement And Analysis ◽  
Urban Energy ◽  
Research Objects ◽  
Low Efficiency

The improvement of urban energy efficiency is of great significance to reduce carbon emissions and achieve China’s goal of carbon peak in 2030. Taking 266 cities as the research objects, the energy efficiency of each city is measured by Super-SBM model. Then the energy efficiency is decomposed by Malmquist index. The results show that: In 2006, the number of cities in high-efficiency areas is small and high efficiency areas are mostly distributed in the northeast and southeast coastal areas. There was a phenomenon of low efficiency areas agglomeration. But in 2017, the number of high-efficiency cities increased significantly. The number of high-efficiency cities in Northeast China increased, the number of high-efficiency cities in Southeast coastal areas decreased, and the number of high-efficiency cities in Central China increased and showed a phenomenon of agglomeration of high-efficiency areas or relatively high efficiency areas. According to the decomposition of urban energy efficiency, technological progress is the main driving force for the improvement of energy efficiency, and the decline of technical efficiency inhibits the improvement of energy efficiency in various cities.

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