scholarly journals Learnings from Developing a Context-Specific LCA Tool for Buildings—The Case of LCAbyg 4

2021 ◽  
Vol 13 (3) ◽  
pp. 1508
Author(s):  
Kai Kanafani ◽  
Regitze Kjær Zimmermann ◽  
Freja Nygaard Rasmussen ◽  
Harpa Birgisdóttir
Keyword(s):  
Stakeholder Involvement ◽  
Ghg Emissions ◽  
Environmental Design ◽  
Building Design ◽  
Specific Context ◽  
Design Decisions ◽  
Component Library ◽  
Building Information ◽  
Operational Energy ◽  
Context Specific

Buildings are a major cause of global resource consumption, greenhouse gas (GHG) emissions and other impacts on the environment, originating from both operational energy and material use. Informed design decisions can help mitigate potential impacts on the environment, by the use of life cycle assessment (LCA) in the early project stages. In order to mitigate building environment impacts throughout the industry, architects and engineers need tools that are integrated in the design workflow and based on the information available. Existing LCA tools for building design professionals are predominantly embedded in a specific context such as a country or a sustainability scheme. This paper provides learnings for the development of context-tailored tools for building-LCA using the case of Denmark, with specific focus on GHG-emissions that are in focus worldwide. Based on stakeholder involvement, four key areas were defined: Default information, flexibility, environmental design feedback and transparent results. Tool functions include a component library and a quantity estimator for bridging incomplete building information. A comparison monitor displays the performance of design solutions selected in the model, while a number of graphs and tables provide analysis of inventory and results. Finally, a customisable model data export, a complete input/output file for revision and custom analysis are among key functions for transparency.

scholarly journals Estimation of Carbon Footprint of Residential Building in Warm Humid Climate of India through BIM

Energies ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 4237
Author(s):  
Rosaliya Kurian ◽  
Kishor Sitaram Kulkarni ◽  
Prasanna Venkatesan Ramani ◽  
Chandan Swaroop Meena ◽  
Ashok Kumar ◽  
...  
Keyword(s):  
Life Cycle ◽  
Carbon Emissions ◽  
Energy Use ◽  
Ghg Emissions ◽  
Residential Building ◽  
Civil Infrastructure ◽  
Humid Climate ◽  
Building Information ◽  
Operational Energy ◽  
Building Life Cycle

In recent years Asian Nations showed concern over the Life Cycle Assessment (LCA) of their civil infrastructure. This study presents a contextual investigation of a residential apartment complex in the territory of the southern part of India. The LCA is performed through Building Information Modelling (BIM) software embedded with Environmental Product Declarations (EPDs) of materials utilized in construction, transportation of materials and operational energy use throughout the building lifecycle. The results of the study illustrate that cement is the material that most contributes to carbon emissions among the other materials looked at in this study. The operational stage contributed the highest amount of carbon emissions. This study emphasizes variation in the LCA results based on the selection of a combination of definite software-database combinations and manual-database computations used. For this, three LCA databases were adopted (GaBi database and ecoinvent databases through One Click LCA software), and the ICE database was used for manual calculations. The ICE database showed realistic value comparing the GaBi and ecoinvent databases. The findings of this study are valuable for the policymakers and practitioners to accomplish optimization of Greenhouse Gas (GHG) emissions over the building life cycle.

scholarly journals Rapid LEED evaluation performed with BIM based sustainability analysis on a virtual construction project

2015 ◽  
Vol 15 (2) ◽  
pp. 134-150 ◽  
Author(s):  
Zaid Alwan ◽  
David Greenwood ◽  
Barry Gledson
Keyword(s):  
Data Exchange ◽  
Environmental Design ◽  
Building Design ◽  
Ecological Impacts ◽  
Low Carbon ◽  
Data Interoperability ◽  
Content Type ◽  
Building Information ◽  
Design Competition

Purpose – The purpose of this study is to examine the feasibility of using 3D simulation transfer processes to streamline the environmental assessment of buildings that have been designed digitally using building information modelling (BIM). The case study presented relates to a competition (“Build Qatar Live”) in which one of the winning team’s objectives was to create a smart process for assessing the design against the Leadership in Energy and Environmental Design (LEED) criteria. The experience indicated that a rapid, concurrent and efficient LEED evaluation was possible within the BIM process. The study presents technological approaches that can be adopted within the BIM environment to simplify the environmental assessments and embrace practices that reduce environmental and ecological impacts. Design/methodology/approach – The methodology encompassed an overview of how rapid high-value data exchange occurs within BIM to achieve a sustainable building design as part of an international design competition. Achieving a LEED rating through sustainable design was a key requirement of the competition. Findings – The findings of this case study has revealed that key credits in LEED can be integrated within the BIM design process. Therefore, tackling such important environmental design issues in parallel to building design and providing key information on building elements needed to meet the sustainability criteria. Originality/value – This research highlights the benefits of streamlined, architectural and data software exchange through applying data interoperability of a building design; thus, skipping conventional 2D building and conventional documentation for environmental and energy designs simulations needed for LEED certifications and general low carbon design.

India as a Pioneer of Innovation

2018 ◽  
Keyword(s):  
Public Health ◽  
Health System ◽  
Informal Economy ◽  
Urban Poor ◽  
Public Health System ◽  
Low Cost ◽  
Social Enterprises ◽  
Specific Context ◽  
Innovation Project ◽  
Context Specific

What does innovation mean to and in India? What are the predominant areas of innovation for India, and under what situations do they succeed or fail? This book addresses these all-important questions arising within diverse Indian contexts: informal economy, low-cost settings, large business groups, entertainment and copyright-based industries, an evolving pharma sector, a poorly organized and appallingly underfunded public health system, social enterprises for the urban poor, and innovations for the millions. It explores the issues that promote and those that hinder the country’s rise as an innovation leader. The book’s balanced perspective on India’s promises and failings makes it a valuable addition for those who believe that India’s future banks heavily on its ability to leapfrog using innovation, as well as those sceptical of the Indian state’s belief in the potential of private enterprise and innovation. It also provides critical insights on innovation in general, the most important of which being the highly context-specific, context-driven character of the innovation project.

Assessing design buildability through virtual reality from the perspective of construction students

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Don Amila Sajeevan Samarasinghe ◽  
Imelda Saran Piri
Keyword(s):  
Virtual Reality ◽  
Tertiary Education ◽  
Building Design ◽  
Assessment Process ◽  
Online Questionnaire ◽  
Sustainable Building ◽  
Content Type ◽  
Building Information ◽  
2D Drawing ◽  
The Impact

PurposeThe purpose of this paper is to evaluate the impact of visual models on the ability of construction students to assess design buildability.Design/methodology/approachThe study engaged 45 construction students from one selected tertiary education institute in New Zealand. The data collection process involved meeting the students face-to-face and demonstrating the VR model to them, after which the students completed an online questionnaire and assessed design buildability using both 2D drawing and virtual reality (VR) models. To make this assessment, the participants considered a residential earth building modelled to promote sustainable building features. The assessment process required the participants to evaluate the design buildability of the same building design using a 2D drawing and a 3D VR model.FindingsThe study found that VR models have significant advantages for assessing design buildability. Students measured 16.80% higher average buildability with the 3D VR model compared to the 2D drawing. The participants in the evaluation felt that the visual model significantly improved the comprehensibility of complex designs, which helped identify and manage design buildability (overall, 83% of participants strongly supported this).Originality/valueThe paper showed construction digitisation such as VR, augmented reality and building information modelling is highly cooperative as it can easily be made available for online learning. Thus, the findings support construction educators use online-based VR learning to promote efficient teaching of design buildability to students.

scholarly journals Strategies to Improve the Energy Performance of Buildings: A Review of Their Life Cycle Impact

Buildings ◽  
2018 ◽  
Vol 8 (8) ◽  
pp. 105 ◽  
Author(s):  
Nadia MIRABELLA ◽  
Martin RÖCK ◽  
Marcella Ruschi Mendes SAADE ◽  
Carolin SPIRINCKX ◽  
Marc BOSMANS ◽  
...  
Keyword(s):  
Life Cycle ◽  
Case Studies ◽  
Environmental Impacts ◽  
Energy Use ◽  
Ghg Emissions ◽  
Energy Performance ◽  
Environmental Benefits ◽  
Embodied Energy ◽  
Trade Offs ◽  
Operational Energy

Globally, the building sector is responsible for more than 40% of energy use and it contributes approximately 30% of the global Greenhouse Gas (GHG) emissions. This high contribution stimulates research and policies to reduce the operational energy use and related GHG emissions of buildings. However, the environmental impacts of buildings can extend wide beyond the operational phase, and the portion of impacts related to the embodied energy of the building becomes relatively more important in low energy buildings. Therefore, the goal of the research is gaining insights into the environmental impacts of various building strategies for energy efficiency requirements compared to the life cycle environmental impacts of the whole building. The goal is to detect and investigate existing trade-offs in current approaches and solutions proposed by the research community. A literature review is driven by six fundamental and specific research questions (RQs), and performed based on two main tasks: (i) selection of literature studies, and (ii) critical analysis of the selected studies in line with the RQs. A final sample of 59 papers and 178 case studies has been collected, and key criteria are systematically analysed in a matrix. The study reveals that the high heterogeneity of the case studies makes it difficult to compare these in a straightforward way, but it allows to provide an overview of current methodological challenges and research gaps. Furthermore, the most complete studies provide valuable insights in the environmental benefits of the identified energy performance strategies over the building life cycle, but also shows the risk of burden shifting if only operational energy use is focused on, or when a limited number of environmental impact categories are assessed.

scholarly journals Thermal system-specific and net-zero carbon least-cost design of new houses in Canadian cold climates

2021 ◽  
Author(s):  
Brandon Wilbur
Keyword(s):  
Life Cycle ◽  
Heat Pump ◽  
Life Cycle Cost ◽  
Ghg Emissions ◽  
Building Design ◽  
Heating System ◽  
Carbon Intensity ◽  
Low Carbon ◽  
Net Zero ◽  
Zero Carbon

Whole-building model optimizations have been performed for a single-detached house in 5 locations with varying climates, electricity emissions factors, and energy costs. The multi-objective optimizations determine the life-cycle cost vs. operational greenhouse gas emissions Pareto front to discover the 30-year life-cycle least-cost building design heated 1) with natural gas, and 2) electrically using a) central air-source heat pump, b) ductless mini-split heat pump c)ground-source heat pump, and d) electric baseboard, accounting for both initial and operational energy-related costs. A net-zero carbon design with grid-tied photovoltaics is also optimized. Results indicate that heating system type influences the optimal enclosure design, and that neither building total energy use, nor space heating demand correspond to GHG emissions across heating system types. In each location, at least one type of all-electric design has a lower life-cycle cost than the optimized gas-heated model, and such designs can mitigate the majority of operational GHG emissions from new housing in locations with a low carbon intensity electricity supply.

scholarly journals Adopting Building Information Modeling (BIM) for the Development of Smart Buildings: A Review of Enabling Applications and Challenges

2021 ◽  
Vol 2021 ◽  
pp. 1-26
Author(s):  
Ang Yang ◽  
Mingzhe Han ◽  
Qingcheng Zeng ◽  
Yuhui Sun
Keyword(s):  
Building Information Modeling ◽  
New Technologies ◽  
Building Design ◽  
Economic Benefits ◽  
Information Modeling ◽  
Three Dimensions ◽  
Smart Buildings ◽  
Smart Building ◽  
Building Information ◽  
Whole Life Cycle

The construction industry is undergoing a digital revolution due to the emergence of new technologies. A significant trend is that construction projects have been transformed and upgraded to the digital and smart mode in the whole life cycle. As a critical technology for the construction industry’s innovative development, building information modeling (BIM) is widely adopted in building design, construction, and operation. BIM has gained much interest in the research field of smart buildings in recent years. However, the dimensions of BIM and smart building applications have not been explored thoroughly so far. With an in-depth review of related journal articles published from 1996 to July 2020 on the BIM applications for smart buildings, this paper provides a comprehensive understanding and critical thinking about the nexus of BIM and smart buildings. This paper proposes a framework with three dimensions for the nexus of BIM application in smart buildings, including BIM attributes, project phases, and smart attributes. According to the three dimensions, this paper elaborates on (1) the advantages of BIM for achieving various smartness; (2) applications of BIM in multiple phases of smart buildings; and (3) smart building functions that be achieved with BIM. Based on the analysis of the literature in three dimensions, this paper presents the cross-analysis of the nexus of BIM and smart buildings. Lastly, this paper proposes the critical insights and implications about the research gaps and research trends: (1) enhancing the interoperability of BIM software; (2) further exploring the role of BIM in the operation and refurbishment phase of smart buildings; (3) paying attention to BIM technology in the field of transportation infrastructure; (4) clarifying the economic benefits of BIM projects; and (5) integrating BIM and other technologies.

Transitioning to Low Carbon Mobility

2016 ◽  
Author(s):  
Debbie Hopkins ◽  
James Higham
Keyword(s):  
Climate Change ◽  
Global Climate ◽  
Critical Role ◽  
Ghg Emissions ◽  
Substantial Contribution ◽  
Transport Sector ◽  
Low Carbon ◽  
The World ◽  
Environmental Transformation ◽  
Context Specific

Since the turn of the 21st Century, the world has experienced unprecedented economic, political, social and environmental transformation. The ‘inconvenient truth’ of climate change is now undeniable; rising temperatures and the increasing frequency and intensity of extreme events have resulted in the loss of lives, livelihoods and habitats as well as straining economies. Increasingly mobile lives are often dependent on high carbon modes of transport, representing a substantial contribution to global greenhouse gas (GHG) emissions, the underlying cause of anthropogenic climate change. With growing demand and rising emissions, the transport sector has a critical role to play in achieving GHG emissions reductions, and stabilising the global climate. Low Carbon Mobility Transitions draws interdisciplinary insights on transport and mobilities, as a vast and complex socio-technical system. It presents 15 chapters and 6 shorter ‘case studies’ covering a diversity of themes and geographic contexts across three thematic sections: People and Place, Structures in Transition, and Innovations for Low Carbon Mobility. The three sections are highly interrelated, and with overlapping, complementing, and challenging themes. The contributions offer critical, often neglected insights into low carbon mobility transitions across the world. In doing so, Low Carbon Mobility Transitions sheds light on the place- and context-specific nature of mobility in a climate constrained world.

BIM Based Design Management of a Building Project Collaboratively Designed With a Foreign Design Firm in China

2019 ◽  
pp. 902-927
Author(s):  
Algan Tezel ◽  
Zeeshan Aziz ◽  
Chuxiong Jiang
Keyword(s):  
Building Design ◽  
Lessons Learned ◽  
Design Management ◽  
Construction Market ◽  
Stakeholder Perspectives ◽  
Building Information ◽  
The Usa ◽  
Complex Building ◽  
Design Firms ◽  
Building Project

In parallel with China's growing construction market, there has been an influx of foreign architectural and engineering design firms into the Chinese construction market. Those firms generally form partnerships with local Chinese firms or institutions to overcome various complications in the country. Adding to the complexity, relatively recent technologies such as Building Information Modelling (BIM) also started to play a role in those collaborative project design management efforts in China. This paper presents an in-depth case study of a complex building design project collaboratively executed using BIM by a foreign design firm from the USA and local Chinese firm in China. The project was analysed from different design management and stakeholder perspectives. Some of the findings confirm the pervious accounts from the literature. New insights and the key lessons learned for BIM based design management in this context are also presented.

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