Index Catalog // ScholarsArchive@OSU

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:: Unit Abstract approved: Hailei Wang The performance of a combined vapor-compression cycle/ORC

Power Cycle Selection and Optimization for a Small Modular Reactor

Creator:: Kissick, Sean M.
Abstract:: As a way to improve safety and economics, one area of research and commercialization of new nuclear power plants has focused on the development of small modular reactors (SMRs). NuScale Power has developed a 50 MWe natural convection cooling SMR coupled with a regenerative Rankine cycle. Current estimates place the...
Resource Type:: Masters Thesis
Full Text:: Selection and Optimization for a Small Modular Reactor Abstract approved: Hailei Wang As a way to improve

Development of a small scale scroll expander

Creator:: Harada, Kevin J.
Abstract:: The organic Rankine cycle (ORC) is a versatile approach in the utilization of waste heat in the production of electricity, clean drinking water, and cooling. The efficiency of these cycles must be maximized to make them economical. Parameters for the optimization of ORCs such as evaporator and condenser temperature have...
Resource Type:: Masters Thesis
Full Text:: . Abstract approved: Richard B. Peterson The organic Rankine cycle (ORC) is a versatile approach

Performance enhancement of a thermally activated cooling system using microchannel heat exchangers

Creator:: Wang, Hailei and Peterson, Richard B.
Abstract:: In the current study a thermally activated cooling system that combines an ORC system with a vapor compression cooling cycle was developed and tested under laboratory conditions. This combined system can utilize waste heat or other thermal sources such as solar and geothermal to generate power and cooling. Hot oil...
Resource Type:: Article
Full Text:: System Using Microchannel Heat Exchangers Hailei Wang* and Richard B. Peterson School of

Quasicrystal Formation, Structure and Indentation Behaviors in Pure Tantalum

Creator:: Wang, Zhengming
Abstract:: Spontaneous quasicrystal (QC) formation has not been observed in pure metals either in computation or in experiments (excluding epitaxial growth of thin atomic layers on a QC template). In this thesis work, dodecagonal QC (DDQC) grains are first discovered to spontaneously form during thermal devitrification of pure tantalum (Ta) metallic...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Zhengming Wang

Applications of the thermal wave technique in liquid thermal conductivity measurements and flow field diagnostics

Creator:: Wang, Zhefu
Abstract:: The thermal wave technique has been explored for the use of liquid thermal conductivity measurement and flow property diagnostics in this dissertation. For liquid thermal conductivity measurements, an experimental technique based on the thermal wave approach is developed. A stainless steel strip functions as both a heating element and a...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Zhefu Wang for the degree of Doctor of Philosophy in

An application of regression tree methodology in freeway travel time estimation using speed as a proxy

Creator:: Wang, Lijuan
Abstract:: Accurate freeway travel time estimation is of increasing importance for the travelers’ information and route guidance system. A non-parametric statistical methodology known as regression trees is deployed in this research for dynamically and accurately estimating freeway travel times for the I5-I205 loop in the Portland Metro area of Oregon using...
Resource Type:: Masters Thesis
Full Text:: Lijuan Wang for the degree of Master of Science in Industrial Engineering presented on September 19

Modeling and optimization of a combined cycle Stirling-ORC system and design of an integrated microchannel Stirling heat rejector

Creator:: Ingram-Goble, Robbie
Abstract:: The performance of a combined Stirling-ORC power cycle is evaluated, and an integrated microchannel heat exchanger is designed as an annular cold-side heat rejector for a free piston Stirling engine. Reasonable designs for a combined cycle can increased power output efficiency by 3 - 9% compared to that of a...
Resource Type:: Masters Thesis
Full Text:: Stirling Heat Rejector Abstract approved: Richard B. Peterson The performance of a combined Stirling-ORC

The geometric characterization and thermal performance of a microchannel heat exchanger for diesel engine waste heat recovery

Creator:: Yih, James S.
Abstract:: Rising energy demands and the continual push to find more energy efficient technologies have been the impetus for the investigation of waste heat recovery techniques. Diesel engine exhaust heat utilization has the potential to significantly reduce the consumption of fossil fuels and reduce the release of greenhouse gases, because diesel...
Resource Type:: Masters Thesis
Full Text:: Exchanger for Diesel Engine Waste Heat Recovery Abstract approved: Richard B. Peterson

Investigation of Seasonal Performance of a Membrane Heat Pump System in Different Climate Regions

Creator:: Bukshaisha, Ahmad A.
Abstract:: Membrane based heat pumps systems have attracted the attention of many research groups as a potentially more environmentally friendly alternative to vapor compression systems that are being used for space cooling in 90\% of the buildings in the United States. Several prototypes systems have been developed, with reported claims of...
Resource Type:: Masters Thesis
Full Text:: Physical Model EES Code . . . . . . . . . . . . . . . . . . . . . . . . 107 B Physical Model Hand

ScholarsArchive@OSU

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

Power Cycle Selection and Optimization for a Small Modular Reactor

Development of a small scale scroll expander

Performance enhancement of a thermally activated cooling system using microchannel heat exchangers

Quasicrystal Formation, Structure and Indentation Behaviors in Pure Tantalum

Applications of the thermal wave technique in liquid thermal conductivity measurements and flow field diagnostics

An application of regression tree methodology in freeway travel time estimation using speed as a proxy

Modeling and optimization of a combined cycle Stirling-ORC system and design of an integrated microchannel Stirling heat rejector

The geometric characterization and thermal performance of a microchannel heat exchanger for diesel engine waste heat recovery

Investigation of Seasonal Performance of a Membrane Heat Pump System in Different Climate Regions

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