Nucleate Boiling
Mostrando 1-7 de 7 artigos, teses e dissertações.
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1. Experimental and theoretical study of pool boiling heat transfer to amine solutions
In this investigation, a large number of experiments have been performed to measure the nucleate boiling heat transfer coefficients of water/diethanolamine (DEA) and water/monoethanolamine (MEA) binary solutions. Based on these experimental data, effects of physical properties such as surface tension and viscosity of mixtures on nucleate boiling heat transfe
Brazilian Journal of Chemical Engineering. Publicado em: 2009-03
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2. Carbon dioxide evaporation in a single microchannel
Despite its importance for designing evaporators and condensers, a review of the literature shows that heat transfer data during phase change of carbon dioxide is very limited, mainly for microchannel flows. In order to give a contribution on this subject, an experimental study of CO2 evaporation inside a 0.8 mm-hydraulic diameter microchannel was performed
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2006-03
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3. Experiments on the fundamental mechanisms of boiling heat transfer
The lecture presents a survey of results found by the author and his team during recent years. An experimental technique for precise and systematic measurements of entire boiling curves under steady-state and transient conditions has been developed. Pool boiling experiments for well wettingfluids and fluids with a larger contact angle (FC-72, isopropanol, wa
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2005-03
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4. Efeito da geometria na ebulição nucleada de refrigerantes halogenados em tubos horizontais / Geometry effects in nucleate boiling of halocarbon refrigerants in horizontal tubes
The research reported herein is a theoretical and experimental investigation of nucleate boiling heat transfer in an isolated tube and a row of three horizontal tubes. The literature review provided enough information to raise the intervening physical parameters and several correlations. The experimental bench has been developed and adapted to perform experi
Publicado em: 2005
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5. Evaluation of the rohsenow correlation through experimental pool boiling of halocarbon refrigerants on cylindrical surfaces
This paper reports results from an investigation on the performance of the Rohsenow's type of correlation when applied to the nucleate boiling of halocarbon refrigerants over cylindrical surfaces of different material. Experimental data for refrigerants R-11, R-123, R-12, and R-134a have been raised and fitted according to two different procedures. It has be
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2004-06
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6. Onset of Nucleate Boiling and Onset of Fully Developed Subcooled Boiling Using Pressure Transducers Signals Spectral Analysis
The experimental technique used for detection of subcooled boiling through analysis of the fluctuation contained in pressure transducer signals is presented. This work was partly conducted at the Institut für Kerntechnik und zertörungsfreie Prüfverfahren von Hannover (IKPH, Germany) in a thermal-hydraulic circuit with one electrically heated rod with annu
Journal of the Brazilian Society of Mechanical Sciences. Publicado em: 2001
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7. DEVELOPMENT OF AN EXPERIMENTAL APPARATUS FOR BOILING ANALYSIS / DESENVOLVIMENTO DE UM APARATO EXPERIMENTAL PARA ANÁLISE DE EBULIÇÃO
A ebulição nucleada é o regime de ebulição de maior interesse para a maioria das aplicações práticas. Neste regime, altos fluxos de calor podem ser atingidos de uma maneira estável, para moderados superaquecidos da superfície. Neste trabalho, é desenvolvido um aparato experimental para o estudo dos fatores que afetam a ebulição nucleada. Este ap
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/04/1984