Performance of a solar energy powered falling film evaporator with film promoter


Autoria(s): SOUZA, T. R.; SALVAGNINI, W. M.; CAMACHO, J. L. P.; TAQUEDA, M. E. S.
Contribuinte(s)

UNIVERSIDADE DE SÃO PAULO

Data(s)

18/10/2012

18/10/2012

2008

Resumo

A solar energy powered failing film evaporator with film promoter was developed for concentrating diluted solutions (industrial effluents). The procedure proposed here does not emit CO(2), making it a viable alternative to the method of concentrating solutions that uses vapor as a heat source and releases CO(2) from burning fuel oil in a furnace, in direct opposition to the carbon reduction agreement established by the Kyoto protocol. This novel device consists of the following components: a flat plate solar collector with adjustable inclination, a film promoter (adhering to the collector), a liquid distributor, a concentrate collector. and accessories. The evaporation rate of the device was found to be affected both by the inclination of the collector and by the feed flow. The meteorological variables cannot be controlled, but were monitored constantly to ascertain the behavior of the equipment in response to the variations occurring throughout the day. Higher efficiencies were attained when the inclination of the collector was adjusted monthly, showing up to 36.4% higher values than when the collector remained in a fixed position. (c) 2008 Elsevier Ltd. All rights reserved.

CNPq

Identificador

ENERGY CONVERSION AND MANAGEMENT, v.49, n.12, p.3550-3559, 2008

0196-8904

http://producao.usp.br/handle/BDPI/18566

10.1016/j.enconman.2008.08.001

http://dx.doi.org/10.1016/j.enconman.2008.08.001

Idioma(s)

eng

Publicador

PERGAMON-ELSEVIER SCIENCE LTD

Relação

Energy Conversion and Management

Direitos

restrictedAccess

Copyright PERGAMON-ELSEVIER SCIENCE LTD

Palavras-Chave #Solar evaporation #Falling film evaporation #Film promoter #Solar concentration #Solar energy #Structured surface #PLATE #COLLECTOR #HEAT #STILL #MASS #Thermodynamics #Energy & Fuels #Mechanics #Physics, Nuclear
Tipo

article

original article

publishedVersion