Journal ArticleDOI
Experimental evidence of a new regime for boiling of water at subatmospheric pressure
TLDR
In this paper, the specific characteristics of water pool boiling at sub-mospheric pressure compared to atmospheric pressure were analyzed to optimize the design of evaporators dedicated to sorption systems.About:
This article is published in Experimental Thermal and Fluid Science.The article was published on 2015-01-01. It has received 53 citations till now. The article focuses on the topics: Boiling & Nucleate boiling.read more
Citations
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Journal ArticleDOI
Visualization and experimental analysis of Geyser boiling phenomena in two-phase thermosyphons
Nelson Yurako Londoño Pabón,Juan Pablo Florez Mera,Gabriel Serafin Couto Vieira,Marcia B. H. Mantelli +3 more
TL;DR: In this paper, a two-phase closed thermosyphon with a punctual heater was used to simulate the formation of a single bubble in a predetermined location and a high-speed camera allowed the qualitative analysis of bubble formation and sensors installed inside the thermosymphon allowed for quantitative characterization of the phenomena.
Journal ArticleDOI
Evaluation of low-pressure flooded evaporator performance for adsorption chillers
TL;DR: In this paper, the performance of a flooded evaporator as a function of water height was investigated and the results showed an optimum water height equal to 80% of the tube diameter leading to the highest cooling power.
Journal ArticleDOI
Experimental study of bubble dynamics of isolated bubbles in water pool boiling at subatmospheric pressures
TL;DR: In this paper, specific features of bubble dynamics in water pool boiling at low pressure in comparison with the atmospheric pressure were exposed, where experiments were conducted at saturation state from atmospheric pressure (T sat = 100 ° C ) down to 4.2 kPa ( T sat = 30 ° C ), with a single imposed heat flux at the heater.
Journal ArticleDOI
The impact of filling level resolved: Capillary-assisted evaporation of water for adsorption heat pumps
TL;DR: In this article, the authors investigated the evaporation performance of horizontal copper tubes with macroscopic fin structures, microporous coatings and the combination of both structures and found that the heat transfer is directly proportional to the tube surface wetted by capillary action.
Journal ArticleDOI
Downslope sediment transport by boiling liquid water under Mars-like conditions: experiments and potential implications for Martian gullies
Clémence Herny,Susan J. Conway,J. Raack,S. Carpy,T. Colleu-Banse,Manish R. Patel,Manish R. Patel +6 more
TL;DR: In this paper, the results of laboratory experiments studying the interaction between liquid water and sediment over a sand bed under Mars-like atmospheric pressure (c 9 mbar) were presented.
References
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Journal ArticleDOI
Numerical study of single bubbles with dynamic contact angle during nucleate pool boiling
TL;DR: In this article, a static contact angle model and dynamic contact angle models were used at the base of a vapor bubble growing on a heated wall to analyze the effect of dynamic contact angles on bubble dynamics and vapor volume growth rate.
Proceedings ArticleDOI
Pool boiling enhancement techniques for water at low pressure
TL;DR: In this paper, a saturated pool boiling of water at low pressures from a heated, 12.7*12.7 mm horizontal surface was examined, and rectangular fin geometries, fluidized particulate beds, and surface finishes were used to enhance heat transfer.
Journal ArticleDOI
Experimental analysis of bubble growth, departure and interactions during pool boiling on artificial nucleation sites
TL;DR: In this article, the authors describe experimental results of pentane pool boiling, simplified to the cases of boiling on a single or on two adjacent nucleation sites, using a high speed camera under various wall superheat conditions.
Journal ArticleDOI
Bubble growth rates in nucleate boiling of water at subatmospheric pressures
TL;DR: In this article, the growth rate of vapour bubbles has been investigated experimentally up to departure in water boiling at pressures varying from 26·7 to 2·0 kPa (the corresponding Jakob number increasing from 108 to 2689).