Index Catalog // ScholarsArchive@OSU

Hybrid Statistical and Engineering Optimization Architectures in Early Multidisciplinary Designs of Resilience and Expensive Black-box Complex Systems

Creator:: Biswas, Arpan
Abstract:: Practical engineering design problems are generally multi-disciplinary with limited budget and high risk in terms of life loss, economic resources, etc. In the early phase of such problems, selection of true efficient designs is desired while minimizing overall design cost by avoiding expensive search processes. However, the task is difficult...
Resource Type:: Dissertation
Full Text:: . To my advisors Dr. Christopher Hoyle and Dr. Claudio Fuentes for showing such faith in me to work

Evaluation of the predictive capability of two-phase flow maps for microchannel condensation of R-134a at low mass flux conditions

Creator:: VanderPutten, Michael A.
Abstract:: Predicting condensation flow regimes and the associated heat transfer and pressure drop in microchannels is critical for designing terrestrial and space systems for heating, cooling, power generation, and advanced manufacturing. It is well established that in flows approaching the microscale (Dh < 1 mm) gravity-dominated flow regimes become less relevant,...
Resource Type:: Masters Thesis
Full Text:: R-410A) in a 8.0 mm diameter tube (85 < G < 902 kg m-2 s-1-, 0.01 < x < 0.78). The

Advanced Computational Modeling Methods for Floating Offshore Wind Systems

Creator:: Devin, Michael C.
Abstract:: Floating offshore wind energy is anticipated to become a competitive source of renewable energy by the late 2020s, but the industry must reduce costs and uncertainties associated with the technology to do so. Identifying solutions to these problems frequently relies on computational modeling, which presents technical shortcomings limiting the versatility...
Resource Type:: Masters Thesis
Full Text:: (s)ation 7 from the three mooring lines has been found to reduce the overall force demands on an

Wave Energy From Idea, to Concept, to Converter: Structuring Methods for Design and Evaluation of Wave Energy Devices

Creator:: Trueworthy, Ali May
Abstract:: The amount of energy we use and the ways that we get that energy sit on the edge of dramatic change as the carbon budget which can keep the planet under 1.5C of global average temperature increase gets smaller (Allen, 2018). In response, we continue to research and develop renewable...
Resource Type:: Masters Thesis
Full Text:: . Different ”X”s include, man- ufacturing, environment, assembly, production, system quality, and life cycle

Investigation of In-tube Non-equilibrium Condensation of Low Global Warming Potential Refrigerants

Creator:: Jacob, Tabeel A.
Abstract:: This work investigates the in-tube condensation of low global warming potential (GWP) zeotropic refrigerant mixtures R448A, R450A, R452A, R454B and R454C. These refrigerants have been proposed for a wide range of commercial heating, ventilation, air-conditioning applications, but their heat and momentum transport phenomenon were not well understood. Thus, in this...
Resource Type:: Dissertation
Full Text:: horizontal tube at mass fluxes ranging from 100 kg m−2 s−1 to 500 kg m−2 s−1 at three different saturation

Unmanned Aerial Vehicle Propulsion

Creator:: Brown, Sean
Abstract:: There is a growing US interest in UAVs for many applications ranging from agriculture to military. One area of improvement that can be realized in each category is propulsion. Engines with greater efficiency would result in longer mission duration, leading to cost savings and increased usefulness for UAV owners and...
Resource Type:: Honors College Thesis
Full Text:: 5 E q u iv al en t je t S F C [ lb /h r/ lb ] Mach Number SFC at typical cruise

Design for Clean Technology Adoption: Application of Discrete Choice Analysis and the Theory of Planned Behavior for Development Engineering

Creator:: Pakravan, Mohammad H.
Abstract:: Clean technologies can address multiple challenges associated with climate change, environmental protection, and human health. However, the impact desired by introduction of such technologies is achievable only if new options effectively replace inefficient, conventional practices. This ‘design for adoption’ requires understanding of user motivations, associated beliefs, context of use, and...
Resource Type:: Dissertation

Technological Improvements in Ligation and Suturing Techniques: A Comparison in the Material Strength of Ligating Clips and Suturing Devices

Creator:: Robertson, Bria L.
Abstract:: Treatment of extrahepatic portosystemic shunts provides many options, including cellophane banding. These cellophane bands are secured with a ligation clip. Weck® offers two forms of these: the stainless steel Hemoclip, and the polymer Hem-o-lok. This in vitro study compares the mechanical strength of these two of types of clips by...
Resource Type:: Honors College Thesis
Full Text:: Suture 2 Device 4 Device Pe ak F or ce p er S ut ur e (N ) Number of Sutures Peak Loads per

Performance Analysis of a Utility-Scale Wave Energy Converter

Creator:: May-Varas, Nicholas A.
Abstract:: A six degree of freedom (6DOF) point-absorber wave energy converter (WEC) called LUPA is being developed at Oregon State University. This research focused on analyzing a full- scale LUPA, called LUPA20, to answer the following questions: 1) How does a full-scale WEC perform due to various factors; 2) What are...
Resource Type:: Honors College Thesis
Full Text:: coefficients ranged from 4E5 to 5E6 N*s/m. WEC-Sim time-domain simulations were run with irregular waves and

Advancing Wind Systems Design through Optimization and Improved Modeling

Creator:: Miller, Annalise M.
Abstract:: Wind energy plays an important and growing role in the US energy profile. While other countries have expanded their wind industries into offshore development, large investment costs have hindered progress in the US offshore market despite the larger and more consistent resource available offshore. In this research, I explore the...
Resource Type:: Masters Thesis
Full Text:: test using offshore wind data in Egypt [18]. Soares et al. use climate modeling to estimate changes in

ScholarsArchive@OSU

Hybrid Statistical and Engineering Optimization Architectures in Early Multidisciplinary Designs of Resilience and Expensive Black-box Complex Systems

Evaluation of the predictive capability of two-phase flow maps for microchannel condensation of R-134a at low mass flux conditions

Advanced Computational Modeling Methods for Floating Offshore Wind Systems

Wave Energy From Idea, to Concept, to Converter: Structuring Methods for Design and Evaluation of Wave Energy Devices

Investigation of In-tube Non-equilibrium Condensation of Low Global Warming Potential Refrigerants

Unmanned Aerial Vehicle Propulsion

Design for Clean Technology Adoption: Application of Discrete Choice Analysis and the Theory of Planned Behavior for Development Engineering

Technological Improvements in Ligation and Suturing Techniques: A Comparison in the Material Strength of Ligating Clips and Suturing Devices

Performance Analysis of a Utility-Scale Wave Energy Converter

Advancing Wind Systems Design through Optimization and Improved Modeling

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