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High speed photographic observation of flow patterns during flow boiling in single rectangular minichannel
(American Society of Mechanical Engineers (ASME), 2003-07)
The present study extends the range of flow patterns
observed during boiling of water in a single minichannel of
height 197 mm and width 1054 mm. The calculated hydraulic
diameter of the channel is 333 mm. High-speed ...
Heat transfer from a moving and evaporating meniscus on a heated surface
(American Society of Mechanical Engineers (ASME), 2003-07)
A stable meniscus is formed between a needle dispensing water over a heated circular face of a rotating copper block. The needle is offset from the axis of rotation and thus forms a moving meniscus. The water flow rate, ...
Heat transfer mechanisms during flow boiling in microchannels
(American Society of Mechanical Engineers (ASME), 2003-04)
The forces due to surface tension, inertia, and momentum change during evaporation in microchannel govern the two-phase flow patterns and the heat transfer characteristics during flow boiling. These forces are analyzed in ...
Critical heat flux in microchannels: Experimental issues and guidelines for measurement
(American Society of Mechanical Engineers (ASME), 2003-04)
Critical heat flux limit is an important consideration in the design of any flow boiling unit. Before the use of microchannels under flow boiling conditions becomes widely accepted in critical applications, such as electronics ...
Microchannels and minichannels - History, terminology, classification and current research needs
(American Society of Mechanical Engineers (ASME), 2003-04)
Microchannels and Minichannels are found in many biological systems providing very high heat and mass transfer rates in organs such as the brain, lung, liver and kidney. Many high flux cooling applications are effectively ...
Extending the applicability of the flow boiling correlation to low Reynolds number flows in microchannels
(American Society of Mechanical Engineers (ASME), 2003-04)
As microchannels are applied in flow boiling applications, it is
becoming apparent that the Reynolds number based on all
liquid flow could approach values below 100. The earlier work
by Kandlikar and Steinke (2002, 2003) ...
Flow boiling and pressure drop in parallel flow microchannels
(American Society of Mechanical Engineers (ASME), 2003-04)
The use of microchannels for advanced heat transfer applications has quickly become commonplace. They are found in automotive applications, fuel cells, and even electronics cooling. However, there are fundamental issues ...
Examples of microchannel mass transfer processes in biological systems
(American Society of Mechanical Engineers (ASME), 2003-04)
Heat and mass transfer processes become highly efficient as the channel hydraulic diameter is reduced in size. Biological systems, such as human body, rely on the extremely efficient transport processes occurring at ...
An Experimental investigation on flow boiling of ethylene-glycol / water mixtures
(American Society of Mechanical Engineers, 2003-04)
Mixtures of ethylene glycol and water are used in cooling the engines in automotive applications. Heat is transferred essentially under subcooled flow boiling conditions as the mixture flows over the hot surfaces, which ...
Evolution of microchannel flow passages – Thermohydraulic performance and fabrication technology
(Taylor & Francis, 2003-03-17)
This paper provides a roadmap of development in the thermal and fabrication aspects of
microchannels as applied in microelectronics and other high heat-flux cooling applications.
Microchannels are defined as flow passages ...