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Filtering by: Creator Piola, Alberto R. Remove constraint Creator: Piola, Alberto R. Degree Field Mechanical Engineering Remove constraint Degree Field: Mechanical Engineering

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  • Condensation of a zeotropic mixture, R-454C, and its individual components, R-1234yf and R-32, in microfin tubes

    Creator:
    Matty, Ethan P.
    Abstract:
    This work compares the condensation heat transfer and pressure drop for zeotropic refrigerant R-454C and its individual components, R-32 and R-1234yf, in horizontal microfin tubes. One microfin tube has a 4 mm outer diameter, 0.18 mm wall thickness, and a surface area ratio of 1.56. The second tube has a...
    Resource Type:
    Masters Thesis
    Full Text:
    a Zeotropic Mixture, R-454C, and its Individual Components, R-1234yf and R-32, in Microfin Tubes

  • 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:
    : Evaluation of the Predictive Capability of Two-Phase Flow Maps for Microchannel Condensation of R-134a at

  • Pre-Prototyping Framework: An Early Design Prototyping Methodology for Human-Centered Products and Workplaces

    Creator:
    Ahmed, Salman
    Abstract:
    Prototyping is a crucial step in product design and development, but it is also known as the highest sunk cost. The top 20 Research and Development (R&D) department spends 142 billion dollars, yet 40 to 46 percent of this money goes into developing products that cannot even make to the...
    Resource Type:
    Dissertation
    Full Text:
    is also known as the highest sunk cost. The top 20 Research and Development (R&D) department spends

  • Reliability Analysis of a Freeze Desalination System

    Creator:
    Boschetti Tofano, Francisco A.
    Abstract:
    The unsustainable use of fresh water sources and unavailability of fresh water in certain parts of the world have created a demand for water desalination systems. Desalination methods are effective at producing consumable water, but often require large scale setups, high energy consumption, and careful maintenance. A team of students...
    Resource Type:
    Honors College Thesis
    Full Text:
    of a Freeze Desalination System by Francisco Alberto Boschetti Tofano A

  • A study of cavitation instabilities in solids

    Creator:
    Puttapitukporn, Tumrong
    Abstract:
    Cavitation instabilities in elastic-plastic solids under spherically-symmetric and axisymmetric loadings were investigated using the finite element method. Both quasi-static and dynamic analyses were used to solve these problems. In the quasi-static analyses, we investigated a cavitation instability in elastic/perfectly-plastic, linear hardening elastic-plastic, power hardening elasticplastic, and constrained silver materials. Here,...
    Resource Type:
    Dissertation
    Full Text:
    .................................................................. 7 2.2 Long cylinder void extended along the r and z-axis ......................................8

  • Transient nonlinear deformations of viscoelastic membranes

    Creator:
    Jenkins, Christopher H. M.
    Resource Type:
    Dissertation
    Full Text:
    parameter K, where K = (2rp/Eh) (2.2.4) and r is the radius of the outer edge of a circular membrane

  • Comparing Actuation and Underactuation of Robotic Hands

    Creator:
    DuFrene, Kyle
    Abstract:
    This thesis explores the differences in puppetted and teleoperation control of robotic hands, using the Asterisk test as a benchmark. Two hands were tested, including modified versions of the Model Q and Model Q developed by Yale's GRAB Lab. Small differences were observed between the puppetted and teleoperation control of...
    Resource Type:
    Honors College Thesis
    Full Text:
    ”. In: Machine Intelligence Robotic Control 4.3 (2002), pp. 1–11. [8] DYNAMIXEL XM430-W350-R. url

  • 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:
    process, and heating, ventilation, cooling, air condition- ing, and refrigeration (HVAC&R). It differs

  • LPBF and Post Processing of H13 Tool Steel

    Creator:
    Alabdulali, Ali
    Abstract:
    Laser powder bed fusion (LPBF) is an innovative method where metal powder is fused together to generate complex geometries. LPBF is used as a technology to reduce material waste, and extensive labor that are often linked to conventional subtractive manufacturing. H13 tool steel is one of the widely used materials...
    Resource Type:
    Masters Thesis
    Date Created:
    2023-08-31
    Full Text:
    . "Additive manufacturing of structural materials." Materials Science and Engineering: R: Reports 145 (2021

  • A Preliminary Methodology For Automating Functional Modeling

    Creator:
    Edmonds, Katherine N.
    Abstract:
    This thesis is the combination of two research publications working towards automating functional modeling. Functional modeling is an underutilized yet critical tool for concept generation and product design. Understanding the difficulty both novice and expert designers have in implementing functional modeling in their design process, this research sets out to...
    Resource Type:
    Masters Thesis