Index Catalog // ScholarsArchive@OSU

Conversion of biomass constituents to hydrogen-rich gas by supercritical water in a microchannel reactor

Creator:: Goodwin, Aaron K.
Abstract:: Microreactors offer high rates of heat transfer able to intensify highly endothermic biomass reforming reactions in supercritical water. In this study, two continuous flow microreactor configurations were used to gasify biomass constituents in supercritical water. The first reactor configuration was a micro diameter stainless steel or Hastelloy tube (508 µm...
Resource Type:: Dissertation

Performance of a thermally activated cooling system and design of a microchannel heat recovery unit

Creator:: Seward, Ryan
Abstract:: The performance of a combined vapor-compression cycle/ORC is evaluated using waste-heat from a diesel generator. A flat plate microchannel heat exchanger is employed to provide energy exchange between the diesel exhaust stream and an oil loop, which provides energy to a boiler. This study finds an increased diesel duty corresponds...
Resource Type:: Masters Thesis
Full Text:: reached near unity for short (sub-25 minutes) tests, with minor efficiency reduction after that

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

Compact integrated microchannel combustor, recuperator and heat exchanger For hydrogen storage applications

Creator:: Ghazvini, Mohammad
Abstract:: A novel microscale combustor-heat exchanger (μCHX) for hydrogen storage applications is presented in this dissertation. The design of the μCHX is motivated by its application to two particular systems for automotive use- those that utilize metal hydrides (MH) and cryo-adsorbents (CA) to store hydrogen. Thermal energy needs to be supplied...
Resource Type:: Dissertation
Full Text:: storage systems with minor changes. The design of the µCHX is performed using computational fluid

Finite volume method modeling of corona discharge microreactor oxidization of dibenzothiophene

Creator:: Fan, Xiangru
Abstract:: The growing need for cleaner fuels requires the development of better deep fuel desulfurization methods. The current study presents a reaction model for the mechanism of dibenzothiophene oxidization by dissolved oxygen occurring in a corona discharge microreactor. In the present work, a Finite Volume Method model of the reactor is...
Resource Type:: Masters Thesis
Full Text:: minor differences between experimental diffusion coefficient and predicted diffusion coefficient. In

Single Phase and Flow Boiling Heat Transfer and Flow Characterization in Microscale Pin Fin Heat Sinks

Creator:: Rasouli, Erfan
Abstract:: The ever increasing requirements for heat dissipation in various thermal management applications such as computer chip cooling and high power electronics have necessitated the need for novel thermal management techniques. Thermal management using heat sinks with microscale features is amongst the prominent techniques developed over the past two decades. In...
Resource Type:: Dissertation

Nonthermal Plasma Microreaction Engineering for Gas and Liquid Processing

Creator:: Pommerenck, Justin
Abstract:: Atmospheric pressure plasma is non-thermal at millimeter to micrometer separations. It represents an alternative low exergy initiator of many chemical reactions. In many instances heat, light or sound are not efficient providers of the necessary energy to overcome chemical activation barriers. The focus of this research is applying dc nonthermal...
Resource Type:: Dissertation

Synthesis and evaluation of PEO-coated materials for microchannel-based hemodialysis

Creator:: Heintz, Keely
Abstract:: The marked increase in surface-to-volume ratio associated with microscale devices for hemodialysis leads to problems with hemocompatibility and blood flow distribution that are more challenging to manage than those encountered at the conventional scale. In this work, stable surface modifications with pendant polyethylene oxide (PEO) chains were produced on polycarbonate...
Resource Type:: Masters Thesis

Performance and flow stability characteristics in two-phase confined impinging jets

Creator:: Sabo, Michael D.
Abstract:: Advances in electronics fabrication, coupled with the demand for increased computing power, have driven the demand for innovative cooling solutions to dissipate waste heat generated by these devices. To meet future demands, research and development has focused on robust and stable two-phase heat transfer devices. A confined impinging jet is...
Resource Type:: Masters Thesis
Full Text:: my parents, David and Patti Sabo, and my sister, Megan Sabo, for all their support and encouragement

ScholarsArchive@OSU

Conversion of biomass constituents to hydrogen-rich gas by supercritical water in a microchannel reactor

Performance of a thermally activated cooling system and design of a microchannel heat recovery unit

Half Array Architecture for Advancing Microchannel Heat Recuperation to Market

Compact integrated microchannel combustor, recuperator and heat exchanger For hydrogen storage applications

Finite volume method modeling of corona discharge microreactor oxidization of dibenzothiophene

Single Phase and Flow Boiling Heat Transfer and Flow Characterization in Microscale Pin Fin Heat Sinks

Nonthermal Plasma Microreaction Engineering for Gas and Liquid Processing

Synthesis and evaluation of PEO-coated materials for microchannel-based hemodialysis

Performance and flow stability characteristics in two-phase confined impinging jets

Limit your search

Academic Affiliation

Advisor

Commencement Year

Committee Member

Creator

Date

Decade

Degree Field

Degree Level

Degree Name

Language

License

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search