Index Catalog // ScholarsArchive@OSU

Evaluation of Governing Heat and Mass Transfer Resistances in Membrane Based Energy Recovery Ventilators with Internal Support Structures

Creator:: Armatis, Paul D. and Fronk, Brian M.
Abstract:: Energy recovery ventilators (ERVs) are an effective way to reduce energy consumption in buildings while satisfying ventilation standards. As membrane technology and manufacturing methods improve, membrane based ERVs are seeing increased market penetration. In the present study, the feasibility of membrane ERV designed to fit in a commercial building wall...
Resource Type:: Article
Full Text:: , Industrial and Manufacturing Engineering Oregon State University 204 Rogers Hall Corvallis, OR 97331

Numbering-Up of Microscale Devices for Megawatt-Scale Supercritical Carbon Dioxide Concentrating Solar Power Receivers

Creator:: Zada, Kyle R., Hyder, Matthew B., Drost, M. Kevin, and Fronk, Brian M.
Abstract:: Concentrated solar power (CSP) plants have the potential to reduce the consumption of nonrenewable resources and greenhouse gas emissions in electricity production. In CSP systems, a field of heliostats focuses solar radiation on a central receiver, and energy is then transferred to a thermal power plant at high temperature. However,...
Resource Type:: Article
Full Text:: Brian M. Fronk(a) (b) (a) School of Mechanical, Industrial and Manufacturing Engineering Oregon

Evaluation of Heat and Mass Transfer Models for Sizing Low-Temperature Kalina Cycle Microchannel Condensers

Creator:: Fronk, Brian M. and Zada, Kyle R.
Abstract:: Waste heat driven ammonia/water Kalina cycles have shown promise for improving the efficiency of electricity production from low-temperature reservoirs (T < 150 °C). However, there has been limited application of these systems to utilize widely available, disperse, waste heat streams for smaller scale power production (1–10 kWe). Factors limiting increased deployment of these...
Resource Type:: Article
Full Text:: Mechanical, Industrial and Manufacturing Engineering Oregon State University 204 Rogers Hall Corvallis

High-Flux Thermal Management With Supercritical Fluids

Creator:: Fronk, Brian M. and Rattner, Alexander S.
Abstract:: A novel thermal management approach is explored, which uses supercritical carbon dioxide (sCO2) as a working fluid to manage extreme heat fluxes in electronics cooling applications. In the pseudocritical region, sCO2 has extremely high volumetric thermal capacity, which can enable operation with low pumping requirements, and without the potential for...
Resource Type:: Article
Full Text:: SUPERCRITICAL FLUIDS Brian M. Fronk1 School of Mechanical, Industrial and Manufacturing Engineering Oregon

Experimental Investigation of In-Tube Condensation of Low GWP Refrigerant R450A using a Fiber Optic Distributed Temperature Sensor

Creator:: Jacob, Tabeel A., Matty, Ethan P., and Fronk, Brian M.
Abstract:: Heat transfer coeﬃcients and frictional pressure drop values are experimentally measured during condensation of R134a and its proposed low global warming potential (GWP) replacement, R450A. R450A is a non-ﬂammable zeotropic mixture of R134a and R1234ze (42/58% by mass). Experiments were conducted in a horizontal tube (ID = 4.7 mm) for...
Resource Type:: Article
Full Text:: . Fronk 1 School of Mechanical, Industrial and Manufacturing Engineering Oregon State University

In-Tube condensation of zeotropic refrigerant R454C from superheated vapor to subcooled liquid

Creator:: Jacob, Tabeel A. and Fronk, Brian M.
Abstract:: This article investigates the in-tube, superheated, saturated, and subcooled condensation of zeotropic refrigerant mixture R454C. R454C is proposed to replace R404A for commercial refrigeration applications. Quasi-local heat transfer coefficients were measured in a 4.7 mm horizontal tube at mass fluxes ranging from 100 to 500 kg m−2 s−1 at three different saturation...
Resource Type:: Article
Full Text:: . Fronka* a School of Mechanical, Industrial and Manufacturing Engineering Oregon State University

Comparison of R404A condensation heat transfer and pressure drop with low global warming potential replacement candidates R448A and R452A

Creator:: Jacob, Tabeel A., Matty, Ethan P., and Fronk, Brian M.
Abstract:: The objective of this paper was to measure and compare the heat transfer coefficient and pressure drop of R404A and two potential replacement candidate refrigerants with a lower global warming potential, R448A and R452A. Experiments were conducted inside a 4.7 mm horizontal tube at mass fluxes ranging from 100 to...
Resource Type:: Article
Full Text:: P. Matty, Brian M. Fronk 1 School of Mechanical, Industrial and Manufacturing Engineering Oregon

Geometry and orientation effects in non-uniformly heated microchannel heat exchangers using supercritical carbon dioxide

Creator:: Jajja, Saad A., Sequeira, Jessa M., and Fronk, Brian M.
Abstract:: There is growing interest to use supercritical carbon dioxide (sCO2) as a working fluid in thermal management applications. This study investigates the thermal-hydraulic performance of microchannel heat sinks as a function of flow channel geometry and orientation at operating conditions representative of electronics cooling applications. Three different experimental test sections,...
Resource Type:: Article
Full Text:: . Fronka,∗ aSchool of Mechanical, Industrial and Manufacturing Engineering Oregon State University

Experimental investigation of supercritical carbon dioxide in horizontal microchannels with non-uniform heat flux boundary conditions

Creator:: Jajja, Saad A., Zada, Kyle R., and Fronk, Brian M.
Abstract:: Supercritical carbon dioxide (sCO2) experiences a drastic change in its thermophysical properties near the thermodynamic critical point. A non-linear thermophysical property variation can influence the heat transfer behavior of sCO2 which is not predicted well by conventional single phase heat transfer theory. This can become a major hindrance in the...
Resource Type:: Article
Full Text:: , Brian M. Fronka,∗ aSchool of Mechanical, Industrial and Manufacturing Engineering Oregon State

Investigation of the combined efficiency of a solar/gas hybrid water heating system

Creator:: Karki, Saroj, Haapala, Karl R., and Fronk, Brian M.
Abstract:: In climate regions with large seasonal variations in solar radiation, such as the Pacific Northwest of the United States, a solar thermal energy collector might not economically satisfy year-round domestic water heating demands, requiring an auxiliary unit, such as a natural gas-fired water heater. Previous studies have shown that the...
Resource Type:: Article
Full Text:: ) and Brian M. FRONK (a) (b) (a) School of Mechanical, Industrial and Manufacturing Engineering

ScholarsArchive@OSU

Evaluation of Governing Heat and Mass Transfer Resistances in Membrane Based Energy Recovery Ventilators with Internal Support Structures

Numbering-Up of Microscale Devices for Megawatt-Scale Supercritical Carbon Dioxide Concentrating Solar Power Receivers

Evaluation of Heat and Mass Transfer Models for Sizing Low-Temperature Kalina Cycle Microchannel Condensers

High-Flux Thermal Management With Supercritical Fluids

Experimental Investigation of In-Tube Condensation of Low GWP Refrigerant R450A using a Fiber Optic Distributed Temperature Sensor

In-Tube condensation of zeotropic refrigerant R454C from superheated vapor to subcooled liquid

Comparison of R404A condensation heat transfer and pressure drop with low global warming potential replacement candidates R448A and R452A

Geometry and orientation effects in non-uniformly heated microchannel heat exchangers using supercritical carbon dioxide

Experimental investigation of supercritical carbon dioxide in horizontal microchannels with non-uniform heat flux boundary conditions

Investigation of the combined efficiency of a solar/gas hybrid water heating system

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