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

An experimental study of flow boiling heat transfer enhancement in minichannels with porous mesh heating wall

Creator:: Wang, Hailei
Abstract:: A unique channel surface enhancement technique via diffusion-bonding a layer of conductive fine wire mesh onto the heating wall was developed and used to experimentally study flow boiling enhancement in parallel microchannels. Each channel was 1000 μm wide and 510 μm high. A dielectric working fluid, HFE 7000, was used...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Hailei Wang for the degree

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:: amazing opportunities. I would also like to thank Dr. Hailei Wang for all his support and persistently

Design and performance of a small scale waste heat recovery unit

Creator:: Ward, Christopher
Abstract:: A microchannel heat exchanger was designed for diesel waste heat recovery and its performance was evaluated. The 21x15x8 cm unit was constructed from diffusion brazed stainless steel lamina and weighed 11 kg. Operating from a 13.4 kW generator with an exhaust temperature of 500 °C the unit delivered 11.1 kW...
Resource Type:: Masters Thesis
Full Text:: thermal systems. Additionally, I owe much gratitude to Dr. Hailei Wang for his unending assistance and

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:: been very fortunate to work alongside Dr. Hailei Wang. Dr. Wang was not only very insightful about

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:: I fear I would run out of printer paper. CONTRIBUTION OF AUTHORS Thank you Dr. Hailei Wang for

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:: appreciation is extended to my graduate committee Dr. Annette R. Von Jouanne, Dr. Hailei Wang, and Dr. Kathy

Synthesis of colloidal metal oxide nanocrystals and nanostructured surfaces using a continuous flow microreactor system and their applications in two-phase boiling heat transfer

Creator:: Choi, Chang-Ho
Abstract:: Metal oxide nanocrystals have attracted significant interests due to their unique chemical, physical, and electrical properties which depend on their size and structure. In this study, a continuous flow microreactor system was employed to synthesize metal oxide nanocrystals in aqueous solution. Assembly of nanocrystals is considered one of the most...
Resource Type:: Dissertation
Full Text:: would like to thank my committee members, Dr. Brian K. Paul, Gregory S. Herman, Hailei Wang, and Frank

Integrated dual cycle energy recovery using thermoelectric conversion and an organic Rankine bottoming cycle

Creator:: Miller, Erik W.
Abstract:: Hot engine exhaust and industrial process exhaust represents a resource that is often rejected to the environment without further utilization. This resource is prevalent in the transportation and industrial process sectors, but stationary engine-generator systems also typically do not utilize this resource. Engine exhaust is considered high grade heat and...
Resource Type:: Masters Thesis
Full Text:: . Hailei Wang who were each co- authors on the papers that became my thesis. Without their guidance I

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:: use and analysis. I would like to give special thanks to Dr. Hailei Wang for pressure testing and

ScholarsArchive@OSU

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

An experimental study of flow boiling heat transfer enhancement in minichannels with porous mesh heating wall

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

Design and performance of a small scale waste heat recovery unit

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

Half Array Architecture for Advancing Microchannel Heat Recuperation to Market

Development of a small scale scroll expander

Synthesis of colloidal metal oxide nanocrystals and nanostructured surfaces using a continuous flow microreactor system and their applications in two-phase boiling heat transfer

Integrated dual cycle energy recovery using thermoelectric conversion and an organic Rankine bottoming cycle

Adhesive microlamination protocol for low-temperature microchannel arrays

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