scholarly journals The evolution of Embodied Energy in Andean residential buildings. Methodology applied to Cuenca-Ecuador

2022 ◽  
pp. 111858
Author(s):  
Jefferson Torres-Quezada ◽  
Ana Torres Avilés ◽  
Antonio Isalgue ◽  
Anna Pages-Ramon
Keyword(s):  
Residential Buildings ◽  
Embodied Energy

scholarly journals On the share of embodied energy in the lifetime energy use of typical Hellenic residential buildings

2020 ◽  
Vol 410 ◽  
pp. 012070 ◽  
Author(s):  
E Dascalaki ◽  
P Argiropoulou ◽  
C A Balaras ◽  
KG Droutsa ◽  
S Kontoyiannidis ◽  
...  
Keyword(s):  
Energy Use ◽  
Residential Buildings ◽  
Embodied Energy

scholarly journals Application of Life Cycle Energy Assessment in Residential Buildings: A Critical Review of Recent Trends

2020 ◽  
Vol 12 (1) ◽  
pp. 351 ◽  
Author(s):  
Hossein Omrany ◽  
Veronica Soebarto ◽  
Ehsan Sharifi ◽  
Ali Soltani
Keyword(s):  
Life Cycle ◽  
Energy Consumption ◽  
Energy Use ◽  
Residential Buildings ◽  
Current Trend ◽  
Energy Performance ◽  
Embodied Energy ◽  
System Boundary ◽  
Energy Assessment ◽  
Boundary Definition

Residential buildings are responsible for a considerable portion of energy consumption and greenhouse gas emissions worldwide. Correspondingly, many attempts have been made across the world to minimize energy consumption in this sector via regulations and building codes. The focus of these regulations has mainly been on reducing operational energy use, whereas the impacts of buildings’ embodied energy are frequently excluded. In recent years, there has been a growing interest in analyzing the energy performance of buildings via a life cycle energy assessment (LCEA) approach. The increasing amount of research has however caused the issue of a variation in results presented by LCEA studies, in which apparently similar case studies exhibited different results. This paper aims to identify the main sources of variation in LCEA studies by critically analyzing 26 studies representing 86 cases in 12 countries. The findings indicate that the current trend of LCEA application in residential buildings suffers from significant inaccuracy accruing from incomplete definitions of the system boundary, in tandem with the lack of consensus on measurements of operational and embodied energies. The findings call for a comprehensive framework through which system boundary definition for calculations of embodied and operational energies can be standardized.

scholarly journals Quantum of Embodied Energy for Residential Buildings

2020 ◽  
Vol 9 (10) ◽  
pp. 206-210
Keyword(s):  
Energy Efficiency ◽  
Natural Resources ◽  
Residential Buildings ◽  
Embodied Energy ◽  
Rating Systems ◽  
Significant Aspect ◽  
Construction Methods ◽  
Ecological Features ◽  
Product Delivery ◽  
Labelling Schemes

Embodied energy(E.E) is the total amount of energy that is required in the production of a material which include all the processes, from the mining and processing of natural resources to manufacturing, transport and product delivery and this helps in choice of materials and construction methods, to maximize the energy efficiency of a building during its operation. The E.E. in products and energy conservancy are the ecological features included in eco-labelling schemes. Embodied energy in materials is a significant aspect in GB rating systems. This paper discusses the influence of different construction units on the E.E. of the structure.

A Quantitative Assessment of the Environmental Impact of Flexible Partitions

2005 ◽  
Vol 30 (1) ◽  
pp. 33-43
Author(s):  
Jia Beisi
Keyword(s):  
Hong Kong ◽  
Environmental Impact ◽  
Environmental Impacts ◽  
Residential Buildings ◽  
Building Design ◽  
Embodied Energy ◽  
Construction And Demolition Waste ◽  
Demolition Waste ◽  
Partition Walls ◽  
Recycling Potential

Each person in Hong Kong produces three times more waste than that of Singapore. This is because a large portion of the waste in Hong Kong is from the construction sector. Re-decoration work carried out by dwellers in Hong Kong is one of the major sources of the construction and demolition waste. Development of flexible reusable infill systems with high recycling potential is significant. A number of these systems are currently used, mainly in public and commercial buildings. They may have potential to be applied in residential buildings in the future. This paper starts with an introduction to the infill systems applied in open building history. It then points out the need to investigate the development of infill processes by integrating infill products available in the market. The paper further introduces current open building studies on reusability of infill systems and addresses the problem that there is a lack of quantitative information on embodied energy and other environmental impacts of infill systems. In the methodology section the paper describes five types of partition walls selected, ranging from low flexibility to high flexibility. Applying an evaluation model for environmental impact, the paper analyzes embodied energy intensity, and environmental impacts of each partition systems in two simulated situations. One is in a two room unit of a public housing prototype and the other is in private apartment. It concludes that partition walls with higher flexibility are highly intensive in their embodied energy. In other environmental impacts, especially recycling potential, flexible partition wall panels exceed that of conventional block-work partitions. The study will enable more complete information to be obtained concerning the environmental impact of infill components and will assist architects and other building professional wisely apply open building design concepts.

scholarly journals A Conceptual Design of an Integrated Façade System to Reduce Embodied Energy in Residential Buildings

2020 ◽  
Vol 12 (14) ◽  
pp. 5730 ◽  
Author(s):  
Wen Pan ◽  
Kepa Iturralde ◽  
Thomas Bock ◽  
Roberto Garay Martinez ◽  
Olga Macias Juez ◽  
...  
Keyword(s):  
Residential Buildings ◽  
Energy Requirement ◽  
Building Design ◽  
Embodied Energy ◽  
Horizon 2020 ◽  
Design For X ◽  
Construction Methods ◽  
Optimum Energy ◽  
Lifecycle Management ◽  
Selection Of

(1) The overall energy requirement of a building may be impacted by the building design, the selection of materials, the construction methods, and lifecycle management. To achieve an optimum energy-efficiency level when dealing with a new building or renovation project, it is important to improve the entire construction process as it is not enough to merely focus on the operational phase. If conventional construction practices do not evolve, compromise, or adapt to necessary changes, then it becomes challenging to deliver an ultimate low energy building. (2) This paper demonstrates the trend of off-site prefabrication and its production principles and the notions of open-building design and Design for X, as well as offering an overview of the development of automation in construction, which provides both insights and evaluations based on the context of the research. (3) Three European Union Horizon 2020 research projects were evaluated, and the outcome of the projects served as the backbone for the research and inspired the design of the proposed integrated façade system. Two design scenarios were proposed to demonstrate the potential improvements that could be achieved in a new build as well as in renovation projects. (4) The research lays a foundation for establishing a larger cross-disciplinary collaboration in the future.

Life Cycle Energy and CO2 Emissions of Residential Buildings in Bandung, Indonesia

2013 ◽  
Vol 689 ◽  
pp. 54-59 ◽  
Author(s):  
Usep Surahman ◽  
Tetsu Kubota
Keyword(s):  
Life Cycle ◽  
Energy Consumption ◽  
Co2 Emissions ◽  
Residential Buildings ◽  
Embodied Energy ◽  
Data Availability ◽  
Assessment Model ◽  
Output Analysis ◽  
Simple Medium ◽  
Operational Energy

This study aims to develop a simplified life cycle assessment model for residential buildings in Indonesia, which can be used under relatively poor data availability conditions. In order to obtain material inventory data and household energy consumption profiles for constructing the above model, a survey was conducted in Bandung in 2011. This paper analyzes life cycle energy and CO2 emissions employing an input-output analysis-based method within unplanned houses (n=250), which are classified into three categories, namely simple, medium and luxurious houses. The results showed that the average embodied energy of simple, medium and luxurious houses was 36.3, 130.0 and 367.7 GJ respectively. The cement consumed the largest energy and emitted the most CO2 emissions among all materials. The annual average operational energy of simple, medium and luxurious houses varied widely at 11.6, 17.4 and 32.1 GJ/year respectively. The energy consumption for cooking accounted for the largest percentage of operational energy. The profiles of life cycle CO2 emissions were similar with those of life cycle energy. The factors affecting embodied, operational and life cycle energy were also studied.

Sign in / Sign up

Export Citation Format

Share Document