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Filtering by: Creator Kloft, Paul K. Remove constraint Creator: Kloft, Paul K. Resource Type Dissertation Remove constraint Resource Type: Dissertation

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  • Manufacturing Process Design and Electrically-Assisted Embossing of a Microchannel Solar Receiver

    Creator:
    McNeff, Patrick S.
    Abstract:
    Manufacturing process design (MPD) represents a design-oriented approach to manufacturing engineering. In this dissertation, Haynes 230 (H230), a solid solution-strengthened Ni-based superalloy, was chosen to meet the material requirements of a microchannel solar receiver (MSR) needed to increase the efficiency and reduce the cost of solar thermal power generation. An...
    Resource Type:
    Dissertation
    Full Text:
    : ______________________________________________________ Brian K. Paul Manufacturing process design (MPD) represents a design-oriented approach to

  • Nickel nanoparticles-assisted diffusion brazing of stainless steel 316 for microfluidic applications

    Creator:
    Tiwari, Santosh K.
    Abstract:
    Transient liquid-phase diffusion brazing is used in precision, hermetic joining applications as a replacement for diffusion bonding to reduce cycle times, reduce bonding pressure and improve yields. Studies showed that the interlayer used in diffusion brazing can be detrimental due to the use of melting point depressants (MPDs). The goal...
    Resource Type:
    Dissertation
    Full Text:
    : ___________________________________________________________________ Brian K. Paul Transient liquid-phase diffusion brazing is used in precision, hermetic

  • Half Array Architecture for Advancing Microchannel Heat Recuperation to Market

    Creator:
    Brannon, Samuel T.
    Abstract:
    High temperature microchannel heat recuperators (HTμRs) offer an efficient means of improving reactor process thermal efficiency by offering smaller form factors due to increased heat transfer surface area density and volumetric heat transfer rate over traditional heat exchanger designs. To date, HTμRs face cost and reliability challenges. In this work,...
    Resource Type:
    Dissertation
    Full Text:
    approved: Brian K. Paul High temperature microchannel heat recuperators (HTµRs) offer an efficient means

  • Development of nickel aluminide (NiAl) microchannel array devices for high-temperature applications

    Creator:
    Kanlayasiri, Kannachai
    Abstract:
    The miniaturization of Microtechnology-based Energy, Chemical and Biological Systems (MECS) is made possible by the use of high aspect ratio microchannel arrays to increase the surface-area-to-volume ratio of the flow conduits within the devices, resulting in an improvement in the heat and mass transfer performance of the devices. However, advantages...
    Resource Type:
    Dissertation
    Full Text:
    approved Brian K. Paul The miniaturization of Microtechnology-based Energy, Chemical and Biological

  • Adhesive microlamination protocol for low-temperature microchannel arrays

    Creator:
    Paulraj, Prawin
    Abstract:
    A new adhesive bonding method is introduced for microlamination architectures, for producing low-temperature microchannel arrays in a wide variety of metals. Sheet metal embossing and chemical etching processes have been used to produce sealing bosses and flow features, resulting in approximately 50% fewer laminae over traditional methods. These lamina designs...
    Resource Type:
    Dissertation
    Full Text:
    : __________________________________________________________________________ Brian K. Paul A new adhesive bonding method is introduced for microlamination architectures

  • Application of buckling behavior to evaluate and control shape variation in high-temperature microlamination

    Creator:
    Wattanutchariya, Wassanai
    Abstract:
    The miniaturization of energy, chemical and biological systems for distributed and portable applications, known as process intensification, is realized by the enhancement in heat and mass transfer performance within high surface-to-volume ratio microchannels. Fabrication of devices for process intensification is achieved in part by microlamination techniques. These techniques consist of...
    Resource Type:
    Dissertation
    Full Text:
    Micro lamination. Abstract approved: Brian K. Paul The miniaturization of energy, chemical and

  • Nanoparticle-assisted diffusion brazing of metal microchannel arrays : nanoparticle synthesis, deposition, and characterization

    Creator:
    Eluri, Ravindranadh T.
    Abstract:
    Microchannel process technology (MPT) offers several advantages to the field of nanomanufacturing: 1) improved process control over very short time intervals owing to shorter diffusional distances; and 2) reduced reactor size due to high surface area to volume ratios and enhanced heat and mass transfer. The objective of this thesis...
    Resource Type:
    Dissertation
    Full Text:
    : _____________________________________________________________________ Brian K. Paul Microchannel process technology (MPT) offers several advantages to the field

  • Foam-Core Meniscus Coating and Diffusion Bonding for Energy Applications

    Creator:
    Saranam, Venkata Rajesh
    Abstract:
    In the second chapter, a foam-core meniscus coating process was developed for retrofitting 100 nm-scale sol-gel anti-reflective coatings onto in-field solar panels through the deposition, evaporation, and curing of wet films.Advantages of this technique include the means to control fluid flow relative to substrate motion and the ability to conform...
    Resource Type:
    Dissertation
    Full Text:
    : Brian K. Paul In the second chapter, a foam-core meniscus coating process was developed for retro

  • Process Physics, Strategies and Economics in Metal Additive Manufacturing and Digital Microstructural Control for Energy and Chemical Process Components

    Creator:
    Manoharan, Sriram
    Abstract:
    Advances in plant construction within the energy and chemical process industries require inexpensive process intensification (PI) technology as a means to reduce plant size for enabling modular construction. One form of PI is microchannel process technology where arrays of microchannels, having hydraulic diameters on the order of 0.1 to 1...
    Resource Type:
    Dissertation
    Full Text:
    : ______________________________________________________ Brian K. Paul Advances in plant construction within the energy and chemical process

  • Development of microchannel arrays in aluminides

    Creator:
    Hasan, Hadi
    Abstract:
    Micro Energy and Chemical Systems (MECS) devices enable at least two areas of benefit due to the accelerated heat and mass transfer that can be accomplished in microchannels. First, MECS devices enable process intensification; the ability to reduce the volume of space needed to implement systems of thermal and chemical...
    Resource Type:
    Dissertation