Environmental Design Commons^™

Reduction Of Embodied Carbon In Buildings Through Use Of Low Carbon Strategies And Standardization And Enforcement Of Life Cycle Assessment, Bhargavi Sai Sudhakar

Master's Projects and Capstones

The building and construction industry is energy intensive and as of 2021, this industry is responsible for 37% of the total global greenhouse gas emissions. In previous studies of conventional buildings, the operational energy of a building contributed to 80% and the embodied energy contributed to 20% of the total life cycle energy. With increase in policies and standards that focus on reducing the operational energy, low energy and certified green buildings have emerged where the operational energy has considerably reduced. The relative and absolute share of embodied energy in these energy efficient buildings have increased due to excessive use …

Applying Unsupervised Machine Learning Clustering Techniques To Early Childcare Soundscapes, Kenton Hummel, Erica E. Ryherd, Iason Konstantzos, Abbie Raikes

Durham School of Architectural Engineering and Construction: Faculty Publications

Early childhood is a critical time period for language, brain, cognitive, and social/emotional development. Out-of-home childcare is a normative, typical experience for millions of young children. Although Indoor Environmental Quality (IEQ) in K-12 settings has received recent, significant attention, the links between IEQ and children’s learning and development in early childcare settings is a less understood topic. This work focuses specifically on the sound aspect of IEQ in early childcare settings to better understand typical noise levels and occupant experience. Standard approaches to analyzing background noise will be presented alongside more detailed statistical analyses utilizing unsupervised machine learning clustering techniques. …

Foreign Object Debris Detection For Airport Pavement Images Based On Self-Supervised Localization And Vision Transformer, Travis Munyer, Daniel Brinkman, Xin Zhong, Chenyu Huang, Iason Konstantzos

Durham School of Architectural Engineering and Construction: Faculty Publications

Supervised object detection methods provide subpar performance when applied to Foreign Object Debris (FOD) detection because FOD could be arbitrary objects according to the Federal Aviation Administration (FAA) specification. Current supervised object detection algorithms require datasets that contain annotated examples of every to-be-detected object. While a large and expensive dataset could be developed to include common FOD examples, it is infeasible to collect all possible FOD examples in the dataset representation because of the openended nature of FOD. Limitations of the dataset could cause FOD detection systems driven by those supervised algorithms to miss certain FOD, which can become dangerous …

Building Information Modeling (Bim) And Building Energy Modeling (Bem): Assessment Of Bim-Bem Workflows And Energy Simulation Tools, Mahsa Farid Mohajer

Doctoral Dissertations

Interoperability and Integration of the Building Information Modeling (BIM) and Building Energy Modeling (BEM) tools are major challenges for the Architecture, Engineering, and Construction (AEC) industry. The goals of this dissertation were to (i) investigate various BEM tools to evaluate their workflow and integration with BIM and (ii) assess BEM tools’ accuracy in predicting/simulating whole building energy performance from a broader lens to a more specific one (i.e., EUI to end-use data, respectively). To conduct the research study, case study buildings were selected from various categories, representing different building types (i.e., academic, administrative, and recreational). The case study buildings were …

Visualizing The Operative And Managing Complexity: Communicating The Design-Fabrication Feedback Loop With The International Tile Industry, Josh Vermillion

Creative Collaborations

School of Architecture faculty members Joshua Vermillion and Paul Morrison led a multi-disciplinary group of students from Architecture, Landscape Architecture, and Theater in a design-build elective, sponsored entirely by companies in the tile and coverings industry. The key to these sorts of collaborations between industry and academe is to see the production, fabrication, and assembly process as something that can inform design, and as a result, the design can augment production by strategic design decision-making. This feedback loop, connecting both ends of the design-production continuum, can yield interesting design research questions. One such question arose repeatedly throughout this semester of …

Robotics In Architecture <> Robotic Architecture: Why Can’T A Building Be As Smart As A Car?, Josh Vermillion

Creative Collaborations

The built environment is rich with opportunities for embedding and integrating digital technologies and sensors to create responsive and adaptable systems—to become smarter. This poster outlines selected moments from a thirteen-year body of work in research, design, and prototyping of responsive systems that act spatially with the environment at installation scale.

Robotics, sensing, physical computing, and digital fabrication are all topics that have been prioritized by U.S. funding programs such as the National Science Foundation, the Department of Defense, and the Department of Education. This poster presents the start of a framework--based around the concept of tinkering--for introducing these systems …

Zero Net Energy Test House, Timothy Hemsath, James D. Goedert, Avery Don Schwer, Yong Cho

Durham School of Architectural Engineering and Construction: Faculty Publications

This paper describes the first phase of a residential research program to reduce the impact of new construction on the environment through research and education using a Zero Net Energy Test House as a framework. Containing four bedrooms, three and a half baths, the 1,800 square foot house, 1,000 square foot basement, is located in Omaha, Nebraska. It is being used to validate several research projects and provides a platform for applications research of a number of technological advances. Laminated photovoltaic solar panels, a wind turbine, and an occupant monitoring energy control system are some of the sustainable design innovations …

Residents’ Satisfaction With Apartment Living In Kuwait: A Study Of The Design Of Jaber Al Ahmad Apartments, Fawzi Alzamil, Qutaiba E. Al-Shaheen

Emirates Journal for Engineering Research

This study examines public housing in Kuwait and Jaber Al Ahmad apartments housing project. It tries to figure out how housing provision, citizen expectations, and satisfaction are linked.

Kuwait's government provide housing for Kuwaiti married couples as part of a welfare program. This goal has proven difficult to achieve, with a waiting list of over 100,000 people. While the majority of applicants apply for a residential plot and a housing loan to build a single-family home, a small number of candidates apply for the apartment unit’s alternative.

The government's capacity to reduce housing demand hinges on its ability to persuade …

Center For Centering: Analysis Of A Modular Timber Dome, Lucas J. Brown

Architectural Engineering

Analysis of a modular timber dome with focus on inductive, sensory, social, and environmental aspects.

Intelligibility Of Medically Related Sentences In Quiet, Speech-Shaped Noise, And Hospital Noise, Tessa Bent, Melissa Baese-Berk, Erica E. Ryherd, Sidney Perry

Durham School of Architectural Engineering and Construction: Faculty Publications

Noise in healthcare settings, such as hospitals, often exceeds levels recommended by health organizations. Although researchers and medical professionals have raised concerns about the effect of these noise levels on spoken communication, objective measures of behavioral intelligibility in hospital noise are lacking. Further, no studies of intelligibility in hospital noise used medically relevant terminology, which may differentially impact intelligibility compared to standard terminology in speech perception research and is essential for ensuring ecological validity. Here, intelligibility was measured using online testing for 69 young adult listeners in three listening conditions (i.e., quiet, speech-shaped noise, and hospital noise: 23 listeners per …

Plastic Bottles In Architecture: A How To Guide On Life-Cycle Through Reuse, Crystallyne Landram

Architecture Undergraduate Honors Theses

This booklet is a collection of 6 case studies that utilize reused plastic bottles significantly within their design. Prior to working with the case studies, much time was dedicated to research that justified the need for such a project. In-depth research on the environmental crisis, waste management trends, stewardship, sustainability, and ethics was conducted and recorded in the introduction to contextualize the need for an accessible how-to guide such as this one. Time was also given to establishing background information on bottles, reprocessing, and architecture to elaborate further on each piece of the content matter. It is curated as a …

Electrochromic Windows: Return On Investment Analysis, Thomas Michael Caprio

Construction Management

In recent years, sustainability in construction has become a topic of undeniable interest. With sustainability certifications becoming more prominent and desirable, members of the construction industry have begun to seek alternatives for standard systems to keep up with market trends. One of the main issues that the construction industry faces is accessibility of technology. While there are new products and technologies being released frequently, members of the construction industry lack knowledge on the specific details and implications of working with newer systems. One piece of technology that was recently introduced is electrochromic glass, or smart glass. Electrochromic windows analyze sunlight …

Neuromorphic Computing Using Electrostatic Mems Devices, Fadi Alsaleem

Durham School of Architectural Engineering and Construction: Faculty Publications

A continuous - time recurrent neural network ( CTRNN ) is described that exploits the nonlinear dynamics of micro electro - mechanical system ( MEMS ) devices to model a neuron in accordance with a neuron rate model that is the basis for dynamic field theory . Each MEMS device in the CTRNN is configured to simulate a neuron population by exploiting the characteristics of bi - stability and hysteresis inherent in certain MEMS device structures . In an embodiment , the MEMS device is a microbeam or cantilevered microbeam device that is excited with an alternating current ( AC …

Ahp Based Multi Criteria Decision Analysis Of Success Factors To Enhance Decision Making In Infrastructure Construction Projects, Solomon Belay, James D. Goedert, Asregedew Woldesenbet, Saeed Rokooei

Durham School of Architectural Engineering and Construction: Faculty Publications

The study presents analytical data-based multi-criteria approach of critical success factors of infrastructure construction projects analyzed in the Ethiopian construction industry. This multi-criteria technique helps to improve the decision capabilities and ultimate performance of construction processes in various low-income countries of the East African region. The aim of this paper is to establish a logical relationship and interdependencies of success-related factors for enhancing decision making for various project teams and identify priorities while taking into account all known construction organizational constraints. A structured hierarchical matrix was developed based on a pre-identified success-related factors, and initially evaluated by experienced professionals as …

Strategic Energy Master Planning For Carbon Neutrality, Marie Patterson

CSU Journal of Sustainability and Climate Change

Universities across the United States are generating goals to be more sustainable and carbon neutral. The energy used in existing buildings on campuses amount to a large volume of greenhouse emissions and must be reduced to help achieve neutrality goals. Strategic Energy Master Plans are instrumental to support these goals through the development of recommendations to reduce energy. Calculating the energy use intensity for existing buildings, a main component of a Strategic Energy Master Plan, can help the campus understand where energy is being used the most. With this information the highest energy consuming buildings can be the focus of …

Tilt-Up Partially Composite Insulated Wall Panels, Marc Maguire, Salam Al-Rubaye

Durham School of Architectural Engineering and Construction: Faculty Publications

This research project was initiated to investigate the behavior of load-bearing concrete insulated wall panels for use in tilt-up construction. The primary objective was to understand the inelastic behavior of these panels so that engineers could perform a proper second-order analysis for combined axial and out-of-plane loading. Toward this aim, the Tilt-up Concrete Institute (TCA) and wythe connector suppliers Innstruct, Thermomass, HK Composites, Dayton Superior, and IconX, funded this study.

This report contains information related to testing of solid and partially composite insulated wall panels that integrated proprietary wythe connection systems. Using the information from these tests, a method to …

Affordable And Sustainable Housing, Brandon Gibson

Williams Honors College, Honors Research Projects

Due to the current state of the world, families around the world have started to invest in their homes. This change in lifestyle has caused the average cost to build a new home to increase to nearly $300,000, with an additional $35,872 due to the pandemic-related uptick in material costs. Custom homes take an ample amount of planning, construction time, along with excessive amounts of materials. I am looking to put my spin on a recent trend that allows an efficient construction timeline, along with the reduction of materials and waste.

Shipping Containers. Though their history of utilization has solely …