Energy-efficient and Sustainable Construction Technologies and Simulation Optimisation Methods

2021 ◽  
Author(s):  
Yongqi Qiu ◽  
Han Wang ◽  
Qiyu Zhang
Keyword(s):  
Energy Efficient ◽  
Sustainable Construction ◽  
Simulation Optimisation ◽  
Optimisation Methods

AN ENTROPY-BASED STUDY ON THE EFFECTIVENESS OF PREFABRICATION IN ACHIEVING SUSTAINABLE CONSTRUCTION

2016 ◽  
Vol 3 (2) ◽  
Author(s):  
Peter S. P. Wong ◽  
Luke Edmonson ◽  
Michael Phillip Kanellopoulos
Keyword(s):  
Construction Industry ◽  
Energy Efficient ◽  
Construction Projects ◽  
Carbon Materials ◽  
Sustainable Construction ◽  
Project Delivery ◽  
Design Stage ◽  
Construction Process ◽  
Industry Survey ◽  
Ranking Analysis

Prefabrication has been widely adopted in the construction projects in recent years. It has also been advocated as a greener and more sustainable approach of project delivery. However, with a wealth of evidence supporting other reasons as the drivers of using prefabrication, it is questionable whether the real goal of prefabrication is to achieve sustainable construction. This study aims to investigate the roles of prefabrication in fostering sustainable construction. The effectiveness of prefabrication on fostering sustainable construction was evaluated on the five aspects enlisted by the UK’s Green Construction Board: Waste, Water, Carbon, Materials, and Biodiversity. An industry survey was conducted in Melbourne, Australia for data collection. 200 questionnaires were sent via email or post to a variety of fields within the construction industry. Entropy ranking analysis was adopted to analyze the effectiveness of using prefabrication in construction. The results suggest that prefabrication is effective in reducing construction waste and sourcing energy efficient materials. However, the utilization of prefabrication was found unsuccessful in reducing carbon emissions during the construction process. It is suggested that proactive actions should be taken at the design stage to unleash the potential of prefabrication in construction.

Simulation optimisation towards energy efficient green buildings: Current status and future trends

2020 ◽  
Vol 254 ◽  
pp. 120012 ◽  
Author(s):  
Vincent J.L. Gan ◽  
Irene M.C. Lo ◽  
Jun Ma ◽  
K.T. Tse ◽  
Jack C.P. Cheng ◽  
...  
Keyword(s):  
Energy Efficient ◽  
Green Buildings ◽  
Current Status ◽  
Future Trends ◽  
Simulation Optimisation

Ultralight, highly thermally insulating and fire resistant aerogel by encapsulating cellulose nanofibers with two-dimensional MoS2

Nanoscale ◽  
2017 ◽  
Vol 9 (32) ◽  
pp. 11452-11462 ◽  
Author(s):  
Lei Yang ◽  
Alolika Mukhopadhyay ◽  
Yucong Jiao ◽  
Qiang Yong ◽  
Liao Chen ◽  
...  
Keyword(s):  
Energy Efficient ◽  
Cellulose Nanofibers ◽  
Sustainable Construction ◽  
Two Dimensional ◽  
Insulating Materials ◽  
Sustainable Resources ◽  
Energy Efficient Buildings ◽  
Earth Abundant

Thermally insulating materials, made from earth-abundant and sustainable resources, are highly desirable in the sustainable construction of energy efficient buildings.

scholarly journals Recycled C&D waste- An energy efficient and sustainable construction material

2021 ◽  
Vol 13 (1) ◽  
pp. 119-124
Author(s):  
Madan Chandra Maurya ◽  
Dinesh Kumar Malviya
Keyword(s):  
Energy Consumption ◽  
Waste Disposal ◽  
Energy Efficient ◽  
Construction Material ◽  
Construction Materials ◽  
Sustainable Construction ◽  
Prime Concern ◽  
Construction Activity ◽  
Conservation Of Natural Resources ◽  
Alternative Sources

Construction and demolition (C&D) wastes are generated with construction or demolition activities and consists of non biodegradable materials such as cement concrete, bricks, plaster, steel, rubble, woods, plastics etc. Large use of natural recourses for the production of construction materials such as concrete is a prime concern for sustainability. In order to minimize the environmental impacts in terms of energy consumption, pollution, waste disposal and global warming construction industries has started to look for new alternative sources which are capable of substituting the use of natural materials, also some attempts were taken to utilize the waste generated from the demolition of structures and construction activity. The main benefits from the recycling of C&D waste are conservation of natural resources, reduction in energy consumption, solution for waste disposal crisis, environment preservation. Its use reduces reliance on primary aggregates and lowers the environmental impact of construction.  

scholarly journals Data Reduction of Digital Twin Simulation Experiments Using Different Optimisation Methods

2021 ◽  
Vol 11 (16) ◽  
pp. 7315
Author(s):  
Pavel Raska ◽  
Zdenek Ulrych ◽  
Miroslav Malaga
Keyword(s):  
Industry 4.0 ◽  
Search Space ◽  
Global Optimum ◽  
Simulation Experiments ◽  
Client Server ◽  
Digital Twin ◽  
Metaheuristic Methods ◽  
Simulation Optimisation ◽  
Optimisation Methods ◽  
Server Architecture

The paper presents possible approaches for reducing the volume of data generated by simulation optimisation performed with a digital twin created in accordance with the Industry 4.0 concept. The methodology is validated using an application developed for controlling the execution of parallel simulation experiments (using client–server architecture) with the digital twin. The paper describes various pseudo-gradient, stochastic, and metaheuristic methods used for finding the global optimum without performing a complete pruning of the search space. The remote simulation optimisers reduce the volume of generated data by hashing the data. The data are sent to a remote database of simulation experiments for the digital twin for use by other simulation optimisers.

scholarly journals Numerical Comparison of Thermal Behaviour Between Ventilated Facades

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
K. Schabowicz ◽  
Ł. Zawiślak
Keyword(s):  
Computational Fluid Dynamic ◽  
Energy Efficient ◽  
Fluid Dynamic ◽  
Sustainable Construction ◽  
Numerical Comparison ◽  
Climate Conditions ◽  
Composite Systems ◽  
Efficient Alternative ◽  
Ventilated Facade ◽  
Selection Of

AbstractIncreasingly high demands on environmental protection are intensifying the development of sustainable construction. Ventilated facades can provide an energy-efficient alternative to standard facades, that is, external thermal insulation composite systems (ETICS). The article compares standard facades, which was a reference, to ventilated facades in two variants: closed joints and open joints. The comparison was made by means of numerical simulations of computational fluid dynamic (CFD), under conditions of high outside temperature and high sunshine. The results showed great benefits of using ventilated facades in such external climate conditions. It was also observed that the selection of the variant of ventilated facade in the system of close or open joints has minimal influence on thermal efficiency of the whole partition.

scholarly journals Approaches to Teaching Building Materials and Technologies for Energy-Efficient Sustainable Construction

2016 ◽  
Vol 15 (3) ◽  
pp. 053-062 ◽  
Author(s):  
Nataliya Lushnikova
Keyword(s):  
Teaching Methods ◽  
Energy Efficient ◽  
Building Materials ◽  
Civil Engineering ◽  
Sustainable Construction ◽  
Approaches To Teaching ◽  
Efficient Construction

There are highlighted the peculiarities of teaching subjects “Building Materials in Energy-efficient Construction” and “Technologies in Sustainable Construction” developed in English within the scope of Civil Engineering Master Studies curricula „Building ecological Europe”. Basic objectives, teaching methods, content of the lectures and course project, and course results are considered.

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