A5002312384- Heat Transfer and Optimization
- Injection Molding Process and Properties
- Nuclear Materials and Properties
- Nuclear and radioactivity studies
- Electronic Packaging and Soldering Technologies
- Metallurgy and Material Forming
- Refrigeration and Air Conditioning Technologies
- Topology Optimization in Engineering
- High Temperature Alloys and Creep
- Microstructure and Mechanical Properties of Steels
- Aluminum Alloy Microstructure Properties
- Nuclear reactor physics and engineering
- Heat Transfer and Boiling Studies
- Additive Manufacturing and 3D Printing Technologies
- Graphite, nuclear technology, radiation studies
- Fusion materials and technologies
- Technology and Data Analysis
- Thermal properties of materials
- Epoxy Resin Curing Processes
- Cyclone Separators and Fluid Dynamics
- Advanced Sensor Technologies Research
- Nuclear Engineering Thermal-Hydraulics
- Advanced Fiber Optic Sensors
- Heat and Mass Transfer in Porous Media
- Advanced Aircraft Design and Technologies
University of Wisconsin–Madison
2018-2024
Abstract The Homogenized Heat Exchanger Thermohydraulic (HHXT) modeling environment has been developed to provide thermodynamic of printed circuit heat exchangers (PCHEs). This finite element approach solves solid conduction and fluid thermohydraulics simultaneously, without the need mesh minuscule micro-channels a PCHE. model handles PCHE features such as headers, side walls, channel inlet outlet regions, in addition micro-channel core. HHXT resolves using simple definitions minimum...
Abstract The mission of the U.S. Department Energy (DOE), Office Nuclear is to advance nuclear power in order meet nation’s energy, environmental, and energy security needs. Advanced high temperature reactor systems will require compact heat exchangers (CHX) for next generation plant designs. A necessary step achieving this objective ensure that ASME Boiler Pressure Vessel Code, Section III, Division 5 has rules construction CHXs service. Given their thermal efficiency compactness, expanding...
Advancements in additive manufacturing and nuclear fuel allow of advanced heat transfer surfaces that provide exceptional thermal performance over classic (HTS). HTSs based on triply periodic minimal (TPMS) represent one class such designs have attracted attention as a potential configuration for fuel. Here, several electrically conductive heaters are manufactured at low cost from polymer filament convectively cooled. The ohmic volumetric heating serves useful proxy local coefficient is...
Diffusion bonded compact heat exchanger plays a critical role for increasing the economic competitiveness of future advanced nuclear reactors. Understand diffusion bonding mechanism requires coupling grain evolution, mechanics, diffusion, phase transitions, and more. This study presents phase-field model specifically in 316H stainless steel, where heterogeneous nucleation growth are simulated during process providing reliable thermodynamic database. The explores evolution physical properties...
Abstract Diffusion bonding is a key manufacturing process for nucleation applications including compact heat exchangers. Accurately predicting the alloy's behavior during diffusion presents challenges, primarily due to intricate interplay of microstructural evolution and physical processes such as compressive loading, temperature history, component migration. The current study develops phase-field model designed simulate in 316H stainless steel, material with exceptional high-temperature...
Abstract Simple and effective material examination methods are desired for the diffusion bonding process, so that produced components, such as compact heat exchangers, can be used in nuclear applications. Optical microscopy of bond process samples is a quick way to examine bond-line microstructure evaluate quality. The stacked nature bonded-block results distinct regions grain growth both at away from interface. Strong materials exhibit across original interface plane, weak have little-to-no...
Abstract Enhancement of the diffusion bonding process for development compact heat exchangers (CHXs) provides an energy efficient solution high-temperature applications in advanced nuclear reactors and other technologies. However, available information is limited concerning (and manufacturing) CHXs high temperature associated selection bonded materials, conditions, mechanical performance, thermo-fluid characteristics. This article reviews knowledge ongoing research being conducted to address...
Abstract There is increased interest in the application of compact heat exchangers (CHXs) for nuclear service given their high thermal efficiency and compactness. CHXs are fabricated by joining a stack etched plates with dense microchannels through diffusion bonding. Diffusion bonding material has basic mechanical properties that differ from base material, requiring appropriate allowable stresses design. Existing code ASME Section III, Division 5 does not address bonded materials . Hence,...
Abstract The U.S. Department of Energy has recently completed a research program to support the development compact heat exchanger (CHX) for use in high temperature advanced reactors. project was executed by an Integrated Research Project (IRP) and includes team members from University Wisconsin–Madison, Michigan, Georgia Institute Technology, Idaho, North Carolina State University, Oregon Electric Power Institute, MPR Associates, exchangers manufacturers CompRex Vacuum Process Engineering....
Abstract High thermal efficiency of Compact Heat Exchangers (CHX) makes them distinctly utile for application to Next Generation Nuclear Plants (NGNPs). The high temperature and transient conditions NGNP operation induce stresses in CHX. These induced can be categorized under different classifications based on their cause location. ASME Sec. III Div. 5 has analysis methodologies failure modes, criteria assessed, constitutive relationship considered. primary objective this study is provide a...
Abstract Compact and thermally efficient, Printed Circuit Heat Exchangers (PCHEs) are favored for use in next generation nuclear power plants. Containing thousands of small working fluid channels distributed a solid 316H or 800H block, PCHEs can handle high pressures operating temperatures required by IV Advanced reactors will require the certification service PCHE design construction codes, such as BPVC Sec-3. Compliance with this standard requires Creep fatigue ratcheting analyses be...
Abstract The mission of the U.S. Department Energy (DOE), Office Nuclear is to advance nuclear power in order meet nation’s energy, environmental, and energy security needs. Advanced high temperature reactor systems will require compact heat exchangers (CHX) for next generation plant designs. A necessary step achieving this objective ensure that ASME Boiler Pressure Vessel Code, Section III, Division 5 has rules construction CHXs service. Construction Alloy 800H diffusion bonded Printed...