Flow Of Latent Heat
Mostrando 1-12 de 15 artigos, teses e dissertações.
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1. Estimate of energy balance in the basin Jaguaribe-CE using remote sensing techniques / Estimativa do balanço de energia na bacia do Baixo Jaguaribe utilizando técnicas de sensoriamento remoto.
Using techniques of remote detection, this work aimed to obtain the energy balance in the Basin of Low Jaguaribe, Perimeter irrigated Tabuleiro de Russas and dam Santo Antônio de Russas. Two images of sensor TM of the satellite Landsat 5 obtained together DGI (Department of Generation of Images) of INPE, composed by six bands, (1,2,3,4,5,7) of the spectrum
Publicado em: 2009
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2. EVAPOTRANSPIRAÇÃO DA MELANCIA IRRIGADA POR MEIO DO SEBAL, BALANÇO HÍDRICO E CORRELAÇÕES TURBULENTAS / ESTIMATING IRRIGATED WATERMELON EVAPOTRANSPIRATION USING SEBAL, SOIL-WATER BALANCE AND EDDY CORRELATIONS
In applications of the SEBAL (Surface Energy Balance Algorithm for Land) algorithm parameters for physical processes adjusted for other regions of the planet are commonly used. Therefore, there is a need for validation of the estimates made with the algorithm compared with other conventional methods of estimating evapotranspiration. Thus, this study main goa
Publicado em: 2009
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3. Otimização exergetica de um sistema coletor-armazenador de calor latente / Exergetic optimization of a collector-storage system of latent heat
This work deals with the exergetic optimization of a solar thermal energy system. This consists of a solar collector and a rectangular water storage tank that contains a phase change material distributed in an assembly of slabs. The study takes into account both conduction and convection heat transfer modes for water in the solar collector, and also the phas
Publicado em: 2008
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4. ESTUDO DOS FLUXOS TURBULENTOS DE CALOR SENSÍVEL E LATENTE NO FUNDO DO VALE DO RIO DA PRATA
Three observational campaigns have been conducted in the region of Nova Roma do Sul, southern Brazil. In the last one of them, a micrometeorological tower was deployed above the river surface, at the bottom of the Prata river valley. The purpose was to characterize the exchange between the river surface and the atmosphere. The micrometeorological parameters
Publicado em: 2008
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5. TURBULENT FLOWS OF CO2 IN A RICE CROP IRRIGATED IN RS (BRAZIL) / FLUXOS TURBULENTOS DE CO2 EM UMA ÁREA DE ARROZ IRRIGADO NO RS
This thesis quantifies the net change of CO2 (NEE) in an irrigated rice crop cultivation in RS (Brazil). The research is part of the project CT-HIDRO, which presents as main purpose the description of surface conditions for different ecosystems in the country. Data were gathered during the cultivation period, from October 2003 to March 2004. During this time
Publicado em: 2007
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6. Balanço de radiação, energia e fluxo de CO2 em ecossistema de manguezal na Amazônia / Radiation and energy balance and fluxes of CO2 in a Amazon mangrove ecosystem
This work use the longest series of continuous meteorological data and fluxes measurements of CO2, sensible heat and latent heat made in Amazon mangrove ecosystem. The series used in this study corresponds to the period of November, 2002 to August, 2003. The meteorological data were collected using an EDISOL system based on the hedí covariance technique. Th
Publicado em: 2006
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7. Two-phase non-equilibrium models: the challenge of improving phase change heat transfer prediction
This lecture addresses some recent developments in modelling of macroscopic thermodynamic and hydrodynamic non-equilibrium phenomena in convective phase change (boiling and condensation) of pure fluids and mixtures. Proper accounting of such phenomena may hold the key to explain and predict deviations from the classical (equilibrium) phase change convective
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2005-03
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8. DETERMINAÇÃO EXPERIMENTAL DOS COEFICIENTES DE TRANSPORTE DA PASTA DE GELO EM TROCADORES DE CALOR DE PLACAS / EXPERIMENTAL DETERMINATION OF TRANSPORTATIONS COEFFICIENTS FOR ICE SLURRY IN PLATE HEAT EXCHANGERS
Ice slurry is an aqueous solution from which ice crystals are formed. These crystals possess high energy density, in the form of latent heat. Furthermore, the fact of being a slurry makes it an excellent energy carrier, for it can be easily pumped. The present work presents an experimental procedure to assess the heat transfer and the pressure loss, with pha
Publicado em: 2005
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9. Balanço de energia e evapotranspiração de cafezal adensado em crescimento sob irrigação localizada. / Energy balance and evapotranspiration in a high density young coffee under located irrigation.
The objectives of this study were to evaluate the magnitude of global evapotranspiration (ETc) in a high density young coffee crop (3.5mx0.9m) under drip irrigation, the ETc partition considering hedgerows and interrows, and the partition of the available radiant energy between sensible and latent heat fluxes. The experiments were conducted from September 20
Publicado em: 2005
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10. SOLIDIFICATION AND FUSION OF PURE SUBSTANCES UNDER THE INFLUENCE OF LAMINAR AND TURBULENT NATURAL CONVECTION / SOLIDIFICAÇÃO E FUSÃO DE SUBSTÂNCIAS PURAS SOB A INFLUÊNCIA DA CONVECÇÃO NATURAL LAMINAR E TURBULENTA / SOLIDIFICACIÓN Y FUSIÓN DE SUSTANCIAS PURAS SOBRE LA INFLUENCIA DE CONVECCIÓN NATURAL LAMINAR Y TURBULENTA
Solidification and fusion belong to a class of transient heat transfer problems known as phase change problems or moving boundary problems. The solution of this class of problems presents an additional difficulty concerning the movement of the interface. This movement is due to the absorption or removal of the latent heat at the interface. As a consequence t
Publicado em: 2000
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11. Simulacoes numericas de frontogenesis / Numerical simulation of frontogenesis
Neste trabalho foram realizados experimentos numericos de frontogenese utilizando um modelo numerico multinivel de area limitada. Como forcante frontogenetica foi utilizada a deformacao horizontal do escoamento. Foram realizadas simulacoes numericas para uma atmosfera seca e com os efeitos de parametrizacao do calor latente de condensacao. Os dois experiment
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/02/1991
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12. Numerical simulation of frontogenesis / Simulacoes numericas de frontogenesis
In this study numerical simulations of frontogenesis were performed using a limited area multilevel numerical model. The frontogenetical forcing was represented by a horizontal deformation flow. The numerical experiments were run with and without the release of latent heat. In both experiments the frontogenesis at low levels and a jet at high levels a long o
Publicado em: 1991