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Effect of channel roughness on heat transfer and fluid flow characteristics at low Reynolds numbers in small diameter tubes
(American Society of Mechanical Engineers (ASME), 2001-06)
The effect of roughness on pressure drop and heat transfer
in circular tubes has been extensively studied in literature.
The pioneering work of Nikuradse (1933) established the sand
grain roughness as a major parameter ...
High-Speed photographic observation of flow boiling of water in parallel mini-channels
(American Society of Mechanical Engineers (ASME), 2001-06)
The use of smaller passage dimensions is becoming more
prevalent in flow boiling applications. Passages with hydraulic
diameters on the order of 1mm provide higher heat transfer
coefficients resulting in more compact ...
High-speed photographic observation of flow boiling of water in parallel mini-channels
(American Society of Mechanical Engineers (ASME), 2001-06)
The use of smaller passage dimensions is becoming more
prevalent in flow boiling applications. Passages with hydraulic
diameters on the order of 1mm provide higher heat transfer
coefficients resulting in more compact ...
Critical heat flux in subcooled flow boiling - An Assessment of current understanding and future directions for research
(Begell House Inc., 2001)
Critical Heat Flux, or CHF, is an important condition that
defines the upper limit of safe operation of heat transfer equipment
employing boiling heat transfer in heat flux controlled systems. Although
significant ...
Flow boiling heat transfer with binary and ternary mixtures in microfin tubes
(American Society of Mechanical Engineers (ASME), 2000)
An experimental setup was designed and fabricated to test the flow boiling heat transfer performance of microfin tubes. Five microfin tubes were tested with pure refrigerants. Two tubes were selected for further testing ...
A Theoretical model to predict pool boiling CHF incorporating effects of contact angle and orientation
(American Society of Mechanical Engineers (ASME), 2000)
A theoretical model is developed to describe the hydrodynamic behavior of the vaporliquid
interface of a bubble at the heater surface leading to the initiation of critical heat
flux (CHF) condition. The momentum flux ...
Effects of surface tension and binary diffusion on pool boiling of dilute solutions - An Experimental assessment
(American Society of Mechanical Engineers, 1999-01-13)
Pool boiling heat transfer with dilute binary mixtures introduces two additional effects due to binary diffusion, and due to change in the surface tension. The secondary effects due to changes in contact angle and wetting ...
Effect of surface finish on flow boiling heat transfer
(American Society of Mechanical Engineers (ASME), 1998-11)
It is well known that the surface structure affects the pool boiling
heat transfer from a heater surface. The number and size distribution
of cavities present on a heater surface affect the nucleation
characteristics. ...
Heat transfer characteristics in partial boiling, fully developed boiling, and significant void flow regions of subcooled flow boiling
(American Society of Mechanical Engineers, 1998-05)
Subcooled flow boiling covers the region beginning from the location where the wall temperature exceeds the local liquid saturation temperature to the local where the thermodynamics quality reaches zero, corresponding to ...
Boiling heat transfer with binary mixtures: Part II — Flow boiling in plain tubes
(ASME, 1998)
Flow boiling heat transfer with pure fluids comprises convective and nucleate boiling
components. In flow boiling of binary mixtures, in addition to the suppression effects
present in pool boiling, the presence of flow ...