Extension of GeN-Foam to modeling of boiling water and validation against the OECD/NRC PSBT benchmark

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Flow boiling data and prediction method for enhanced boiling tubes and tube bundles with R-134a and R-236fa including a comparison with falling film evaporation

New enhanced boiling tubes from Wolverine Tube Inc. (Turbo-B5) and Wieland-Werke AG (Gewa-B5) were investigated using R-134a and R-236fa as test fluids. The tests were done at saturation temperatures of 5 and 15 degrees C, mass flow rates from 4 to 35 kg m ...

Elsevier Sci Ltd2014

Asymmetric annular flow in horizontal circular macro-channels: Basic modeling of liquid film distribution and heat transfer around the tube perimeter in convective boiling

John Richard Thome, Andrea Cioncolini

This paper presents the modeling of the liquid film distribution and heat transfer during convective boiling in horizontal, annular flows to be applied in such applications where non-uniform heat flux occurs. In general, prediction methods in the literatur ...

Pergamon-Elsevier Science Ltd2014

Intermittent dewetting and dryout of annular flows

John Richard Thome, Navid Borhani

Flow visualisation of saturated flow boiling of refrigerant R245fa in a silicon parallel multi-microchannel evaporator, at low mass flux and moderate uniform heat flux, has been carried out with a high-speed digital camera. Using the time-strip technique t ...

Pergamon-Elsevier Science Ltd2014

Numerical investigation of hydrodynamics and heat transfer of elongated bubbles during flow boiling in a microchannel

John Richard Thome, Mirco Magnini

Flow boiling within microchannels has been explored intensively in the last decade due to their capability to remove high heat fluxes from microelectronic devices. However, the contribution of experiments to the understanding of the local features of the f ...

Elsevier2013

Numerical investigation of the influence of leading and sequential bubbles on slug flow boiling within a microchannel

John Richard Thome, Mirco Magnini

Multiphase CFD simulations are presently employed to investigate the flow boiling of multiple sequential elongated bubbles in a horizontal microchannel. Most of the computational studies published so far explored the features of boiling flows within microc ...

Elsevier2013

Critical Heat Flux of R134a and R245fa Inside Small-Diameter Tubes

John Richard Thome, Sylwia Szczukiewicz, Cristiano Bigonha Tibiriça

This article presents new experimental critical heat flux results under saturated flow boiling conditions for a macro/microscale tube. The data were obtained in a horizontal 2.20-mm inside diameter stainless-steel tube with heating lengths of 361 and 154 m ...

Taylor & Francis2013

Two-Phase Flow Boiling in a Single Layer of Future High-Performance 3D Stacked Computer Chips

John Richard Thome, Navid Borhani, Sylwia Szczukiewicz

The present study focuses on an experimental investigation of two-phase flow boiling in a silicon multi-microchannel evaporator, which emulates a single layer of a 3D stacked computer chip. The micro-evaporator is comprised of 67 parallel channels, each ha ...

Ieee2012

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Intermittent dewetting and dryout of annular flows

John Richard Thome, Navid Borhani

Pergamon-Elsevier Science Ltd2014

Flow boiling data and prediction method for enhanced boiling tubes and tube bundles with R-134a and R-236fa including a comparison with falling film evaporation

John Richard Thome, Eugene van Rooyen

Elsevier Sci Ltd2014

Asymmetric annular flow in horizontal circular macro-channels: Basic modeling of liquid film distribution and heat transfer around the tube perimeter in convective boiling

John Richard Thome, Andrea Cioncolini

Pergamon-Elsevier Science Ltd2014