• No results found

Boiling Heat Transfer

Analytical considerations of flow boiling heat transfer in metal foam filled tubes

Analytical considerations of flow boiling heat transfer in metal foam filled tubes

... flow boiling heat transfer in metal foams are strongly dependent on the metal foam ...for heat transfer coefficient was achieved between analytical results and experimental ...simulate ...

17

Modeling a General Equation for Pool Boiling Heat Transfer

Modeling a General Equation for Pool Boiling Heat Transfer

... of heat flux, (q), and operating pressure (P), on boiling heat transfer coefficient, ...of heat transfer coeffi- cient with heat transfer flux, ...

10

A Novel Concept for Boiling Heat Transfer Enhancement

A Novel Concept for Boiling Heat Transfer Enhancement

... incipient boiling superheat decrease and eventually eliminate boiling hysteresis occurred on the smooth surface of the tube due to the use of highly- wetting ...of heat and mass there. It increases ...

8

Fundamental issues, mechanisms and models of flow boiling heat transfer in microscale channels

Fundamental issues, mechanisms and models of flow boiling heat transfer in microscale channels

... fluxes, heat fluxes and working fluids ...flow boiling instabilities, improper designed test facility, test sections and experimental ...small heat transfer coefficients, some or complete ...

131

Boiling heat transfer on fins – experimental and numerical procedure

Boiling heat transfer on fins – experimental and numerical procedure

... of boiling heat ...the heat flux was close to the critical one (CHF), numerous vapour bubbles were formed, which departed from the surface, causing the drying of the plate ...the heat ...

7

Experimental Investigation on Boiling Heat Transfer Using R134A

Experimental Investigation on Boiling Heat Transfer Using R134A

... The heat transfer characteristic of R134a during boiling were experimentally investigated in a horizontal mini ...the heat transfer ...validation. Boiling heat ...

5

Pool Boiling Heat Transfer in Water/Amines Solutions

Pool Boiling Heat Transfer in Water/Amines Solutions

... the boiling heat transfer of binary mixtures of CF3CH2F/CHCl2CF3 and they have proposed two different ...for heat transfer reduction in ...of heat flux. They determined this ...

19

CFD Simulation of Impinging Jet Flows and Boiling Heat Transfer

CFD Simulation of Impinging Jet Flows and Boiling Heat Transfer

... 124 In the current study, numerical simulations were carried out to investigate the behaviour of impinging jets with different flow configurations. Steady and unsteady analyses as well as adiabatic and non-adiabatic ...

163

Investigation into flow boiling heat transfer in a minichannel with enhanced heating surface

Investigation into flow boiling heat transfer in a minichannel with enhanced heating surface

... minichannel boiling heat transfer experiment with the application of thermosensitive liquid crystal technique included the hue distribution along the heating foil and the volumetric heat flux ...

11

Pool Boiling Heat Transfer Surface Enhancement using Electrodeposition with Non-Electrolyte Bath

Pool Boiling Heat Transfer Surface Enhancement using Electrodeposition with Non-Electrolyte Bath

... improve heat transfer have been ...and boiling heat transfer improvements using microparticle coatings on ...pool boiling of ethanol. They found that at low heat fluxes, ...

82

Pool boiling heat transfer for surfaces with microchannels of variable depth

Pool boiling heat transfer for surfaces with microchannels of variable depth

... nucleate boiling (ONB) at low superheating, but at medium heat flux heat transfer coefficient decreases after dry-out heat flux (DHF) is ...pool boiling performance at higher ...

5

Fundamental issues, technology development and challenges of boiling heat transfer, critical heat flux and two phase flow phenomena with nanofluids

Fundamental issues, technology development and challenges of boiling heat transfer, critical heat flux and two phase flow phenomena with nanofluids

... nucleate boiling heat transfer and CHF phenomena in pool boiling are summarized and analyzed ...pool boiling data are often measured with about 20-30% errors and the experimental data ...

140

Flow Boiling Heat Transfer Over Open Microchannels With Tapered Manifold

Flow Boiling Heat Transfer Over Open Microchannels With Tapered Manifold

... Closed microchannels (microchannels with a cover plate) have been extensively studied by earlier researchers [38,64]. Balasubramanian and Kandlikar [70] reported flow instability due to explosive growth of bubbles in ...

209

Evaporation/boiling heat transfer characteristics in an artery porous structure

Evaporation/boiling heat transfer characteristics in an artery porous structure

... During the supercritical startup, it took about 120 minutes for the auxiliary operation of the secondary 306 evaporators to realize the cryocooling to the two primary evaporators from an[r] ...

32

Experimental study of flow boiling heat transfer and critical heat flux in microchannels

Experimental study of flow boiling heat transfer and critical heat flux in microchannels

... flow boiling instability in two parallel microchannels using low mass flux and various heat ...flow boiling instabilities involving flow reversal should be of great concern for the design of micro ...

325

Investigation of boiling heat transfer and flow regimes in a heat exchanger

Investigation of boiling heat transfer and flow regimes in a heat exchanger

... A heat exchanger is a piece of equipment built for efficient heat transfer from one medium to ...allows heat energy in one process fluid to pass to another process fluid in controlled ...

5

Characteristics of Boiling Heat Transfer on Hydrophobic Surface

Characteristics of Boiling Heat Transfer on Hydrophobic Surface

... Also, in contrast to case of uncoated surface, where the departure of vapor phase from the heating surface is accompanied by contact line reduction, at boiling on hydrophobic surface another picture is observed. ...

7

The Heat Transfer Coefficient as a Function of Steam Quality for High Pressure Once Through Flow Boiling, with Determination of the Transition Points Between the Regions of Particular Heat Transfer  EUR 4561

The Heat Transfer Coefficient as a Function of Steam Quality for High Pressure Once Through Flow Boiling, with Determination of the Transition Points Between the Regions of Particular Heat Transfer EUR 4561

... 1 Region in which heat transfer to the liquid phase is performed by forced convection 2 The X—value at which subcooled boiling starts 3 Region of suboooled boiling heat transfer 4 Region[r] ...

76

Pool boiling of ethanol and FC-72 on open microchannel surfaces

Pool boiling of ethanol and FC-72 on open microchannel surfaces

... the boiling liquid, under the specimen and in the cylinder. The heat flux, temperature superheat and boiling heat transfer coefficient were related to the level of the micro-fins ...The ...

5

Boiling local heat transfer enhancement in minichannels using nanofluids

Boiling local heat transfer enhancement in minichannels using nanofluids

... boiling heat transfer, flow patterns, and pressure drop of water in parallel ...the heat flux and it is difficult to withstand bubbly flow regimes using water as working fluid due to its high ...

20

Show all 10000 documents...

Related subjects