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Comparison of the energy demand with the envelope limitations of the performance normative of Brazil and Spain

AIP Conference Proceedings 2023年第1期2928卷

作者： Letiane Benincá Claudia Glitzenhirn Ana Carolina Passuello Eva Crespo Sánchez José María González Barroso Doctoral degree in Architectural Building Construction and Urbanism Architecture Technology Department Universitat Politècnica de Catalunya Av. Diagonal 649 08028 Barcelona Spain Postgraduate Program in Civil Engineering: Construction and Infrastructure Federal University of Rio Grande do Sul Av. Osvaldo Aranha 99 90035-190 Porto Alegre Rio Grande do Sul Brazil Architecture and Urbanism Federal University of Rio Grande do Sul Rua Sarmento Leite 320 99050-170 Porto Alegre Rio Grande do Sul Brazil

Buildings consume 42.6% of the electricity generated in Brazil, and the residential sector is responsible for 21,4% of that amount, in other words, almost a quarter of the generated electricity. Add to this fact, the housing deficit was almost 6 million in 2019 in the country. The purpose of this article is to analyze the results of the heating and cooling demand of a social residential building designed in an H shape, in Passo Fundo, in southern Brazil, from the perspective of the thermal transmittance limitation of the Brazilian normative (NBR 15575) and the Spanish Technical Code (CTE). The main objective is to verify and analyze the existing differences and potentials in the comparison between the regulations, evaluating the thermal envelope of a typical social housing building. The method used to obtain results was a computer simulation, using EnergyPlus software as an energy calculation engine and Sketchup 2017 for the modeling, with the Euclid plugin, which directly sends data to the energy simulation program. The building was simulated with climate data from the city of Passo Fundo, belonging to the Brazilian Bioclimatic Zone 2 (BZ2), and was compared to the transmittance level required for the D1 climate of Spain, as required by the CTE. Finally, it is possible to evidence that there is a decrease in the building’s energy demand as thermal insulation is incorporated into the walls and roof, to reach the strictest standard requirement levels. This article intends to show the potential for improvement in Brazilian regulations and the path to be followed concerning energy improvement in buildings.

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Rainfall interception loss by corn crop

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IOP Conference Series: Materials Science and engineering 2020年第1期933卷

作者： T Erlangga A Yulianur Sugianto L Aditya Civil Engineering Postgraduate Program Department of Civil Engineering Universitas Syiah Kuala Banda Aceh Indonesia Department of Civil Engineering Universitas Syiah Kuala Banda Aceh Indonesia Agriculture Departement Universitas Syiah Kuala Banda Aceh Indonesia Environmental Engineering Departement Gda∇sk University of Technology Gabriela Narutowicza 11/12 80-233 Gda∇sk Polandia

One factor that influences the water balance on earth is the presence of the rain factors. The Hydrological cycle is a process of water that is evaporated and if the atmosphere allows, water will fall as rain. Interception is an important factor in the hydrological cycle. With the process of interception, rain water that reaches the ground surface becomes reduced. The amount of interception is influenced by land use in a sub-watershed. This research was conducted in the Krueng Jreu sub-watershed, located in Aceh Besar District with an area of 23,189.53 Ha. Land use at this location is generally intended for plantations, wetland agriculture, protected forests, and rural settlements. Most of the citizen around the research location, work as farmers, such as farmers of rice, corn, peanuts, oil palm, and others. In comparison to all types of plants, corn is one of the dominant plants developed in this area. The purpose of this research is to find out the value of interception in maize plants. The value of interception in maize plants aged 1-3 months was analyzed by making a Mini Hydrological Watershed model to obtain a regression equation, where this equation is used to see the interception of maize intercepts on rainwater rainfall observations of 19 variants of observational data from 3 months of research. The amount of interception in maize plants obtained based on the Mini Hydrology Watershed model with logarithmatic regression is 17.62 mm from 205.950 mm of total rainfall.

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Bioregeneration of spent activated carbon:Review of key factors and recent mathematical models of kinetics

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Chinese Journal of Chemical engineering 2018年第5期26卷 893-902页

作者： Kwok-Yii Leong Siew-Leng Loo Mohammed J.K.Bashir Wen-Da Oh Pasupuleti Visweswara Rao Jun-Wei Lim Centre for Water Research Department of Civil and Environmental Engineering National University of Singapore Singapore Membrane Technology Centre Nanyang Environment and Water Research Institute Nanyang Technological University Department of Environmental Engineering Faculty of Engineering and Green Technology (FEGT) Universiti Tunku Abdul Rahman Residues & Resource Reclamation Centre Nanyang Environment and Water Research Institute (NEWRI) Nanyang Technological University Bio Product Development Program Faculty of Agro-Based Industry Universiti Malaysia Kelantan Institute of Food Security and Sustainable Agriculture Universiti Malaysia Kelantan Department of Fundamental and Applied Sciences Universiti Teknologi PETRONAS

The disposal of spent activated carbon(AC) will inevitably create secondary pollution. In overcoming this problem, the spent AC can be regenerated by means of biological approach. Bioregeneration is the phenomenon in which through the action of microorganisms, the adsorbed pollutants on the surface of the AC will be biodegraded and this enables further adsorption of pollutants to occur with time elapse. This review provides the challenges and perspectives for effective bioregeneration to occur in biological activated carbon(BAC)column. Owing to very few reported works on the bioregeneration rate in BAC column, emphasis is put forward on the recently developed models of bioregeneration kinetic in batch system. All in all, providing potential solutions in increasing the lifespan of AC and the enhancement of bioregeneration rate will definitely overcome the bottlenecks in spent AC bioregeneration.

关键词： Bioregeneration Spent activated carbon Modeling of bioregeneration kinetic Concentration gradient Exoenzyme

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Bridging the gap between academia and industry in approaches for solving ill-structured problems: Problem formulation and protocol development 125

Bridging the gap between academia and industry in approaches...

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125th ASEE Annual Conference and Exposition

作者： Akinci-Ceylan, Secil Cetin, Kristen Sara Fleming, Renee Ahn, Benjamin Surovek, Andrea E. Cetin, Bora Taylor, Paige Applied Linguistics Program Iowa State University United States Iowa State University Department of Civil Construction and Environmental Engineering United States Area of Biomimicry for Sustainable Construction South Dakota School of Mines and Technology United States Iowa State University Department of Civil Construction and Environmental Engineering United States

One of the main skills of engineers is to be able to solve problems. It is generally recognized that real-world engineering problems are inherently ill-structured in that they are complex, defined by non-engineering constraints, are missing information, and contain conflicting information. Therefore, it is very important to prepare future engineering students to be able to anticipate the occurrence of such problems, and to be prepared to solve them. However, most courses are taught by academic professors and lecturers whose focus is on didactic teaching of fundamental principles and code-based design approaches leading to predetermined "right" answers. Most classroom-taught methods to solve well-structured problems and the methods needed to solve ill-structured problems are strikingly different. The focus of our current effort is to compare and contrast the problem solving approaches employed by students, academics and practicing professionals in an attempt to determine if students are developing the necessary skills to tackle ill-structured problems. To accomplish this, an ill-structured problem is developed, which will later be used to determine, based on analysis of oral and written responses of participants in semi-structured interviews, attributes of the gap between student, faculty, and professional approaches to ill-structured problem solving. Based on the results of this analysis, we will identify what pedagogical approaches may limit and help students' abilities to develop fully-formed solutions to ill-structured problems. This project is currently ongoing. This work-in-progress paper will present the study and proposed methods. Based on feedback obtained at the conference from the broader research community, the studies will be refined. The current phase includes three parts, (1) problem formulation;(2) protocol development;and (3) pilot study. For (1), two different ill-structured problems were developed in the civil engineering domain. The problem diffic

关键词： Ill-structured problem Problem-solving Verbal protocol analysis

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A conceptual framework for service life prediction of reinforced concrete structures

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Journal of Building Pathology and Rehabilitation 2018年第1期3卷 1-11页

作者： Possan, E. Dal Molin, D.C.C. Andrade, J.J.O. Graduation Program of Civil Engineering Federal University of Latin American Integration (PGCEI/UNILA) Foz do Iguaçu Brazil Counseling Center for Innovation of Buildings Engineering School of UFRGS Federal University of Rio Grande do Sul (NORIE/UFRGS) Porto Alegre Brazil Graduation Program in Materials Engineering and Technology Pontifical Catholic University of Rio Grande do Sul (PGETEMA/PUCRS) Porto Alegre Brazil

This paper presents a conceptual framework methodology concerning service life prediction of concrete structures by using deterministic or probabilistic processes, which are included from collecting data until the decision-making. This methodology provides guidelines to generate new degradation models and accomplish new service life studies of either existing structures or new ones in literature. In the first case, it is possible to estimate how many years are necessary for the structure to reach the desired limit state (durability, service or of security). It can also provide support in project design by selecting durability requirements such as covering thickness, concrete strength, type of cement, water–cement ratio, among other factors that influence the service life of concrete structures. © 2018, Springer International Publishing AG, part of Springer Nature.

关键词： Degradation Limit state Mathematic model Service life prediction Simulation

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Fracture toughness of epoxy adhesive containing dual-capsules self-healing system

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AIP Conference Proceedings 2021年第1期2339卷

作者： H. Ghazali A. N. F. Amir L. Ye S. Dullah 1School of Mechanical Engineering Universiti Teknologi Malaysia 81310 UTM Skudai Johor Malaysia 2Centre for Advanced Materials Technology (CAMT) School of Aerospace Mechanical and Mechatronic Engineering The University of Sydney NSW 2006 Australia 3School of Mechanical Engineering Universiti Sains Malaysia 14300 Nibong Tebal Pulau Pinang Malaysia 4Civil Engineering Program Universiti Malaysia Sabah Jalan UMS 88400 Kota Kinabalu Sabah Malaysia

Structural polymeric adhesive such as the two-part epoxy adhesive, offers many benefits in comparison to the more conventional joining methods, for instance welding and mechanical fastening. Due to epoxy’s thermosetting nature, when polymerisation occur, a highly crosslinked material with superior mechanical properties will be produced. However, due to this crosslinked molecular structure they are also known to be brittle, and once crack initiated in the material, there will be no mechanism to slows down and inhibit their propagation. From the previous literatures, it was found that, rubbery second-phase inclusions can significantly increase the toughness of this thermosetting polymeric adhesive. In this study, second-phase inclusions in the form of dual-capsule self-healing system were dispersed into a commercially available epoxy adhesive to improve its mechanical properties. Tapered double cantilever beam (TDCB) specimens were used to access the Mode-I fracture toughness of the adhesive. And, it was found that, by incorporating these microcapsules an increment of as high as 80% of its baseline Mode-I fracture toughness (GIC) can be obtained. Apart from that, recovery of fracture toughness of up to 74% after full fracture can be achieved due to the self-healing characteristic of these microcapsules. Scanning electron microscopy (SEM) was used to analyse the fracture surface of the joints. The self-healing adhesives demonstrate recovery of both cohesion and adhesion properties with room temperature healing.

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Remote Sensing Research: A Proven Catalyst for Increasing Geoscience Engagement Among Minority Students

Remote Sensing Research: A Proven Catalyst for Increasing Ge...

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IEEE International Symposium on Geoscience and Remote Sensing (IGARSS)

作者： Reginald Blake Janet Liou-Mark Hamidreza Norouzi Laura Yuen-Lau Physics Department New York City College of Technology Brooklyn New York USA Mathematics Department New York City College of Technology Brooklyn New York USA Civil Engineering Technology Department New York City College of Technology Brooklyn New York USA Honors Scholars Program New York City College of Technology Brooklyn New York USA

At all academic levels, recruiting, retaining, and graduating minority students in sufficient numbers within the geosciences remain a monumental and failed task of the geoscience community. This continued dismal failure culminates in the persistence of an ethnic (and far too often gender) homogeneity among the community's participants. The paucity of diversity in the geosciences does not bode well for the sustainability, the vitality, and the global reach of the field. Inclusiveness and accessibility in the geosciences are critical, and innovative approaches/methodologies are urgently needed to ameliorate this vexing problem. Results from a pioneering program in New York City show that a rigorous and exciting introduction to satellite and ground-based remote sensing can be successfully used to attract, to raise geoscience awareness, and to engage non-geoscience, underrepresented minority students majoring in Science, technology, engineering, and Mathematics (STEM) in productive geoscience participation: research, peer-reviewed publications, conference presentations, and workforce and graduate school entrances. The results also show that program participants: a) developed a deeper interest in the geosciences; b) became more aware of remote sensing as a research tool, and c) connected remote sensing to a host of real world, geophysical phenomena and applications.

关键词： Remote sensing Geology Education Urban areas Land surface temperature Land surface

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Home occupants awareness toward Green building: Greenship rating index application

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AIP Conference Proceedings 2021年第1期2447卷

作者： Maranatha Wijayaningtyas Kukuh Lukiyanto 1Civil Engineering Department National Institute of Technology Malang Jl. Bendungan Sigura-gura No. 2 Malang Indonesia 65145 2Entrepreneurship Department BINUS Business School Undergraduate Program Bina Nusantara University Araya Mansion 8-22 Malang Campus Indonesia 65154

Many real estate developers use the term “green” as a marketing gimmick. The developers assume that providing housing with a green building concept can attract consumers to buy the housing offered, and it turns out that this strategy is successful. As a result, the purpose of this research is to determine residents’ awareness of the green building concept and its application in their homes. This research is quantitative research with a survey method. This is done by distributing questionnaires to residents in “green” housing, and there were 325 respondents obtained in this study. The understanding of residents is measured based on the Greenship criteria, a rating tool from the Green Building Council Indonesia for green building certification in Indonesia. According to the findings, residents’ awareness of the parameters of green buildings in their homes was focused primarily on appropriate site development, water conservation, and building environmental management. Moreover, as many as 40% agree that the residence has a green concept. Meanwhile, 50% said they disagreed, and the rest were still in doubt. Therefore, it needs support and cooperation between the government, developer associations, and housing developers to understand the importance of green buildings to succeed in sustainable development goals in Indonesia.

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Transforming hydropower: An in-depth systematic review of climate change impacts

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Renewable and Sustainable Energy Reviews 2025年 219卷

作者： Ricky Anak Kemarau Siti Norliyana Harun Zulfaqar Sa'adi Marlia Mohd Hanafiah Zaini Sakawi Muhammad Ammar Fakhry Norzin Wan Shafrina Wan Mohd Jaafar Stanley Anak Suab Oliver Valentine Eboy Khairul Nizam Abdul Maulud Earth Observation Centre Institute of Climate Change Universiti Kebangsaan Malaysia Bangi 43600 Selangor Malaysia Centre for Tropical Climate Change System Institute of Climate Change Universiti Kebangsaan Malaysia Bangi 43600 Selangor Malaysia Centre for Environmental Sustainability and Water Security (IPASA) Research Institute for Sustainable Environment (RISE) Universiti Teknologi Malaysia 81310 UTM Skudai Johor Bahru Malaysia Department of Earth Sciences and Environment Faculty of Science and Technology Universiti Kebangsaan Malaysia Bangi 43600 Selangor Malaysia Institute for Tropical Biology and Conservation Universiti Malaysia Sabah Jalan UMS Kota Kinabalu 88400 Sabah Malaysia Geography Program Faculty of Social Science and Humanities Universiti Malaysia Sabah Kota Kinabalu 88400 Sabah Malaysia Department of Civil Engineering Faculty of Engineering and Built Environment Universiti Kebangsaan Malaysia Bangi 43600 Selangor Malaysia

Hydropower is a cornerstone of the global renewable energy transition, yet its reliability is increasingly threatened by climate change-induced shifts in hydrological cycles. This systematic review critically examines how climate change affects hydropower sustainability through water availability, streamflow variability, and the frequency of extreme weather events. Guided by the PRISMA framework, 124 peer-reviewed studies were analyzed to explore three core dimensions: global impact patterns, regional vulnerabilities, and adaptation strategies. The central research question addresses how climate and hydrological variability shape the operational and strategic sustainability of global hydropower systems. Results reveal pronounced regional disparities. Arid zones such as Northern Africa and the Mediterranean face substantial reductions in water availability, while high-altitude areas like the Himalayas experience increasing seasonal flow variability. Conversely, regions like Northern Europe may benefit from enhanced precipitation. These dynamics reflect broader climatic trends—rising temperatures, earlier snowmelt, and increased evaporation—that are already reducing hydropower reliability in vulnerable areas. The review identifies promising adaptation pathways. Technological innovations, including AI-driven water management and advanced turbine systems, enhance operational efficiency under uncertain conditions. Additionally, governance strategies such as Integrated Water Resource Management (IWRM) and transboundary agreements offer institutional mechanisms to coordinate water use and mitigate resource conflicts. By synthesizing global trends and region-specific responses, this review offers critical insights to inform climate-resilient hydropower planning, infrastructure investment, and policy development. It underscores the need for interdisciplinary collaboration and forward-looking adaptation to secure hydropower's role in a changing climate.

关键词： Hydro energy

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Effects of soil properties on production and bioaccumulation of methylmercury in rice paddies at a mercury mining area,China

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Journal of Environmental Sciences 2018年第6期30卷 194-205页

作者： Deliang Yin Tianrong He Runsheng Yin Lingxia Zeng The Key Laboratory of Karst Environment and Geohazard Prevention Guizhou University Guiyang 550003 China College of Resources and Environments Southwest University Chongqing 400715 China State Key Laboratory of Ore Deposit Geochemistry Institute of Geochemistry Chinese Academy of Sciences Guiyang 550002 China Department of Civil and Environmental Engineering Environmental Chemistry and Technology Program University of Wisconsin-Madison Madison WI 53706 USA

Rice paddy soil is recognized as the hotspot of mercury（Hg） methylation, which is mainly a biotic process mediated by many abiotic factors. In this study, effects of key soil properties on the production and bioaccumulation of Hg and methylmercury（MeHg） in Hg-contaminated rice paddies were investigated. Rice and soil samples were collected from the active Hg smelting site and abandoned Hg mining sites（a total of 124 paddy fields） in the Wanshan Mercury Mine, China. Total Hg（THg） and MeHg in soils and rice grains, together with sulfur（S）,selenium（Se）, organic matter（OM）, nitrogen（N）, phosphorus（P）, mineral compositions（e.g., SiO2, Al2O3 and Fe2O3） and pH in soils were quantified. The results showed that long-term Hg mining activities had resulted in THg and MeHg contaminations in soil-rice system. The newly-deposited atmospheric Hg was more readily methylated relative to the native Hg already in soils, which could be responsible for the elevated MeHg levels in soils and rice grains around the active artificial Hg smelting site. The MeHg concentrations in soils and rice grains showed a significantly negative relationship with soil N/Hg, S/Hg and OM/Hg ratio possibly due to the formation of low-bioavailability Hg–S（N）–OM complexes in rhizosphere. The Hg–Se antagonism undoubtedly occurred in soil-rice system, while its role in bioaccumulation of MeHg in the MeHg-contaminated rice paddies was minor. However, other soil properties showed less influence on the production and bioaccumulation of MeHg in rice paddies located at the Wanshan Mercury Mine zone.

关键词： Rice paddy Physicochemical property Mercury mining area Mercury Methylmercury Bioaccumulation factors

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