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Boiling heat transfer performance and phenomena of Al2O 3-water nano-fluids from a plain surface in a pool
Abstract Boiling heat transfer characteristics of nano-fluids with nano-particles suspended in water are studied using different volume concentrations of alumina nano-particles. Pool boiling heatExpand
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An experimental study on CHF enhancement in flow boiling using Al2O3 nano-fluid
Abstract The critical heat flux (CHF) is one of the most important thermal hydraulic parameters in heat transfer system design and safety analyses. CHF enhancement allows higher limits of operationExpand
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Development of a back propagation network for one-step transient DNBR calculations
TLDR
In this paper, the back propagation network (BPN) is incorporated into the system transient analysis code for the one-step transient DNBR calculation, thus, to eliminate the tandem procedure and to increase calculation speed. Expand
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Direct observation of a liquid film under a vapor environment in a pool boiling using a nanofluid
The existence of a liquid film separating a vapor bubble from a heated solid surface is confirmed using a nanofluid. The existence of such a liquid film had been a theoretical premise of the criticalExpand
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Critical heat flux prediction using genetic programming for water flow in vertical round tubes
Abstract The genetic programming method is used to develop critical heat flux (CHF) correlations for upward water flow in vertical round tubes under low pressure and low flow conditions. The geneticExpand
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A mechanistic critical heat flux model for wide range of subcooled and low quality flow boiling
A mechanistic model to predict a critical heat flux (CHF) over a wide operating range in the subcooled and low quality flow boiling has been proposed based on a concept of the bubble coalescence inExpand
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Visualization of a principle mechanism of critical heat flux in pool boiling
Abstract A new experimental work was made to discover a principle mechanism of the burnout in pool boiling. Here, we directly observed a liquid layer structure under a massive vapor clot and theExpand
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Measurement of local two-phase flow parameters of nanofluids using conductivity double-sensor probe
A two-phase flow experiment using air and water-based γ-Al2O3 nanofluid was conducted to observe the basic hydraulic phenomenon of nanofluids. The local two-phase flow parameters were measured with aExpand
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Critical heat flux under flow oscillation of water at low-pressure, low-flow conditions
In this work, the effect of flow oscillations on critical heat flux (CHF) is investigated for water flow in vertical round tubes at low-pressure, low-flow (LPLF) conditions. An experimental study hasExpand
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Visualization of the subcooled flow boiling of R-134a in a vertical rectangular channel with an electrically heated wall
Abstract A digital photographic study of subcooled flow boiling with R-134a was performed in a vertical rectangular channel heated from one side to observe near-wall structures. Primary attention wasExpand
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