Papers by Keyword: Green Building

Abstract: Integrated water management aims to promote water supply from conventional resources and wastewater reuse to address issues such as water scarcity. The positive input from collecting and reusing water for household purposes has not often seen assessments of the impact of climatic change, water resource availability, and water deprivation in various regions. If the water resource comes from a clean water resource and was first used to wash or bathe, it is commonly referred to as greywater. GW is an abundant resource generated throughout people's daily lives. GW can be used for domestic cleaning, flushing toilets, washing vehicles, washing kitchen gardens, washing clothes, and washing before rinsing. This research study aims to develop an experimental system for GW treatment with the optimum cost and reuse it in landscape facilities. The main result showed achieving a suitable design for GW, which improves the water's characteristics and quality so that it is suitable for use in landscaping agriculture, at a total cost of 15.6 $ to effluent discharge water amount of 1.75 m³/h. This study showed that the presented experimental study, which uses a conventional treatment process built with existing systems, can achieve satisfactory results of GW treatment. The turbidity was reduced with an effectiveness rate of 96% and a filtration efficiency of 96.5% for TSS, particularly in filtration by a mixture of screen filter and gravel filter.

Abstract: Green roof is a vegetated roof system to minimize the negative impacts of urbanization. This systematic review focuses on trends in green roof applications and materials for green buildings published between 2000 and 2022, using the PRISMA method. The database search was conducted using Scopus, obtaining 90 relevant articles. The articles were categorized based on the green roof applications (hydrological performance, stormwater quality, and urban heat island (UHI)) and the materials used, yielding 45 articles each on commercial materials and recycled waste. The highest number of articles were published in the “Journal of Building Engineering.” Between 2012 and 2022, it is observed that recycled waste was the most widely researched material within the published literature. Research interest in utilizing recycled waste material for green buildings has substantially increased. The use of waste material for green buildings shows a promising advancement in improving stormwater management i.e., in hydrological performance and quality, as well as reducing UHI.

Abstract: The pioneers of the industrial revolution, and their successors, left the world’s ecosystem in a devastating state. Global warming became the consequence of activities in the industry that led to climate change, the depletion of the ozone layer, and pollution of the ecosystem. For decades now, concerned researchers have been frantically investigating methods and procedures that can help conserve the ecosystem's left to attain sustainability. The construction industry also poses its challenge as novel solutions to construct sustainable, less hazardous products to the environment and improve human health are diligently investigated and identified yearly. This paper discusses specific steps of this nature and explains how environmentally-friendly construction methods and materials produce ceiling boards.

Abstract: Nowadays, much effort is directed towards solving the energy crisis resulting from depletion of fossil fuel. This has resulted in new approaches in energy industry like developing new sources of energy and harvesting already wasted energy. One of the commonly wasted forms of energy is the vibrational energy existing in noise produced from daily life activities. The goal of this work is to put a design for an Acoustic Energy Harvesting unit that is based on a Piezo-Electric transducer that can convert sound energy of noise into electric energy. The design process followed an experimental approach. It included open circuit as well as closed circuit experiments. The open circuit experiment aimed at finding a good initial guess for incident sound frequency for optimum energy harvesting while the closed circuit experiment aimed at finding the suitable circuit electrical impedance that would maximise energy harvesting at the frequency obtained from the initial guess. The proposed design can harvest power of 0.043 μW, with voltage of 21 mV and current of 2.05 μA, at power harvesting density of 2.8x . These results are achieved at incident sound of sound pressure level (SPL) of 118 dB and frequency of 466.2 Hz.

Abstract: BEE project is a category of complicated and systematic engineering in construction industry, not only concerned with alleviation of energy shortage pressure and melioration of residential conditions, but also related to both sustainable development of low carbon society and promotion of circular economy. Three main parts including green building, renewable and clean energy technologies and environmental protection are analyzed and studied in a holistic way. In general, energy-saving technologies and energy management pattern have been researched in detail based on general building energy efficiency theory, so as to effectively promote building energy-efficient application system.

Abstract: General public has gradually realized the significance of building energy efficiency because of the increasing severity of environmental pollution and energy depletion issues during rapid societal and economic development. To achieve the goal of building energy efficiency requires the support from technical, economic, politic as well as social dimensions. Aiming to establish sustainable environmental and constructional development mechanism towards macro environment, this article has firstly presented the concept of general building energy efficiency, which is a general term of all energy-saving technologies in building lifecycle, from design and planning to operation and maintenance, and even demolishment.

Abstract: This study evaluates the thermal influence of sunspaces from a representative case, The Historical and Anthropological Museum Maurice Van de Maele, Valdivia, Chile. For this case, different possible situations were analysed, including sunspaces, through energy simulations. The simulations were compared to the current state of the buildings, to perform an analysis of the possible energetic saving by incorporating sunspaces into construction. The specific climate of the area defined that during the majority of the year heating is needed, more than cooling, for the buildings. The results show that there are cases where, using sunspaces as an intermediary between interiors and exteriors, significant savings of over 60% in winter can be obtained.

Abstract: In this paper, evaluation index system of green building energy-saving technology was established on the basis of comprehensive analysis of the factors affecting green building energy-saving technology. This evaluation index system was divided into two levels. Thermal performance of maintenance structure, energy efficiency of building equipment, design management, operation management and indoor comfort and health were one-level evaluation index, and there are eighteen two-level evaluation indexes. Entropy weight method was introduced to determine the weight of evaluation index. Fuzzy synthetic evaluation method was applied to synthetic evaluation. On this basis, a model based on entropy weight method and fuzzy synthetic evaluation method was proposed to evaluate the green building energy-saving technology. An example was given to verify the validity and feasibility of the model. Results show that the model can used to evaluate the green building energy-saving technology, and offers reference on evaluation of green building energy-saving.

Abstract: The focus of this paper is the study of effect of nanotechnology on the concrete. It shows that:The control of moisture in buildings is key to their durability, functionality, health and efficiency. Concrete which is thoroughly soaked with water is less rigid in compression than concrete with is thoroughly dried out. Use of nano SiO₂ could significantly increase the compressive for concrete, containing large volume fly ash, at early age and improve size distribution. The self-healing polymer could be especially applicable to fix the microcraking in bridge, piers and columns. With the hycrete waterproofing system, concrete is batched with hycrete liquid admixture to achieve hydrophobic performance. Concrete treated by hycrete shows less than 1% absorption. This product has positive effects on the environment. Green additive has lower cost than the materials they replace. Finally, two solutions are given to have appropriate material behavior: nanotechnology and green additive.

Abstract: With the rapid development of urbanization, human requirement of residential buildings becomes higher and higher. Ecological and environmental design are the main theme. This paper mainly introduces the nationality characteristics and ecological design idea of the traditional stilted building projecting in Kaili City, Miao and Dong Nationality Autonomous Prefecture, Guizhou Province. Stilted buildings are simple and practical, Ecological organic, energetic architecture which deserve to be developed.