Mostrar el registro sencillo del ítem

dc.contributor.authorZamora Parra, Blas 
dc.contributor.authorSánchez Kaiser, Antonio 
dc.contributor.authorLucas Miralles, Manuel 
dc.contributor.authorRuiz Ramírez, Javier 
dc.date.accessioned2012-02-07T17:57:32Z
dc.date.available2012-02-07T17:57:32Z
dc.date.issued2011-09
dc.identifier.citationZAMORA PARRA, Blas et al. Analysis of the air-water droplet motion through cooling tower drift eliminators, including comparative efficiency evaluations of several types of devices, by numerical investigation. Technology and Knowledge Transfer e-Bulletin, vol.2, no.7 2011. ISSN 2172-0436eng
dc.identifier.issn2172-0436
dc.description.abstractMist eliminators (also called droplet eliminators, droplet separators or demisters) are devices that can remove liquid droplets from a gas flow. The gas flow laden with droplets is forced to pass through different channels, changing direction in a repetitive manner. Wave-plate (or vane type) eliminator are widely employed in chemical and industrial processes involving gas and vapour flows where mist removal is necessary for several reasons. For instance, one of the most important objectives is to restrict pollutant emission into the environment, as in cooling towers applications. Wave-plate mist eliminators can operate in vertical and horizontal situations, but in both cases, the removal of liquid droplets occurs mainly by inertial impaction. In cooling towers, spraying water is distributed over a heat transfer surface across or through which a stream of air is passing. Thus, water droplets can be captured by the stream of air and they will be carried out of the system. This phenomenon is known as drift. In countries with warm climate, inside the cooling towers the conditions of high temperature and humidity can strongly induce the spreading of pathogens agents, especially the Legionella pneumophila. The main disadvantage of installing mist (i.e., drift) eliminators is an increased pressure loss of the airflow. High-pressure loss contributes to lower flow rate of air or higher engine power of the ventilators. This fact leads to obtain lower overall efficiency values for the air-conditioning systems. Since a lack of systematic studies on comparative evaluation of morphologically similar separators has been detected, the behaviour of four wave-type eliminators having a similar geometry is studied. Both droplet collection efficiency and the pressure drop coefficient are calculated. Special emphasis is made on the validation of the numerical model with results taken from the literature, the study of the effects of relevant parameters, and the achievement of a procedure to evaluate the overall efficiency of each regarded type of eliminator. The obtained results may contribute to improve the passive droplets restraint systems in mechanical cooling towers, increasing the overall operation of the cooling tower on one side, and lowering their environmental impact on the other.eng
dc.formatapplication/pdfeng
dc.language.isoengeng
dc.publisherUniversidad Politécnica de Cartagenaeng
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/*
dc.titleAnalysis of the air-water droplet motion through cooling tower drift eliminators, including comparative efficiency evaluations of several types of devices, by numerical investigationeng
dc.typeinfo:eu-repo/semantics/articleeng
dc.subject.otherMecánica de Fluidoseng
dc.subjectParticle flowseng
dc.subjectDropletseng
dc.subjectDrift eliminatoreng
dc.subjectTurbulenceeng
dc.subjectCFDeng
dc.subjectUncertainty analysiseng
dc.identifier.urihttp://hdl.handle.net/10317/2076
dc.peerreviewSieng
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesseng
dc.type.versioninfo:eu-repo/semantics/publishedVersioneng


Ficheros en el ítem

untranslated

Este ítem aparece en la(s) siguiente(s) colección(ones)

Mostrar el registro sencillo del ítem

Atribución-NoComercial-SinDerivadas 3.0 España
Excepto si se señala otra cosa, la licencia del ítem se describe como Atribución-NoComercial-SinDerivadas 3.0 España