dc.contributorUniversidade de Taubaté - UNITAU
dc.contributorUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:21:22Z
dc.date.available2014-05-27T11:21:22Z
dc.date.created2014-05-27T11:21:22Z
dc.date.issued2005-07-01
dc.identifierJournal of the Brazilian Society of Mechanical Sciences and Engineering, v. 27, n. 3, p. 243-247, 2005.
dc.identifier1678-5878
dc.identifierhttp://hdl.handle.net/11449/68316
dc.identifier10.1590/S1678-58782005000300005
dc.identifierS1678-58782005000300005
dc.identifier2-s2.0-23244463916
dc.identifier2-s2.0-23244463916.pdf
dc.identifier5158363701305340
dc.description.abstractEvaporative cooling operates using water and air as working fluids. It consists in water evaporation, through the passage of an airflow, thus decreasing the air temperature. This system has a great potential to provide thermal comfort in places where air humidity is low, being, however, less efficient where air humidity is high. A way to solve this problem is to use dehumidifiers to pre-conditioning the process air. This paper presents a system that can be used in humid climates coupling desiccant dehumidification equipment to evaporative coolers. The paper shows, initially, the main characteristics of the evaporative cooling and of the adsorption dehumidification systems. Later on the coupled systems, in which occurs a dehumidification by adsorption in a counter flow rotary heat exchanger following the evaporate cooling of the air in evaporative coolers, are analyzed. The thermodynamic equations of state are also presented. Following, this paper analyzes some operation parameters such as: reactivation temperature, R/P relationship (reactivation air flow/ process air flow) and the thermodynamic conditions of the entering air flow. The paper shows the conditions for the best operation point, with regard to thermal comfort conditions and to the energy used in the process. In addition this paper presents an application of the system in different climate characteristics of several tropical and equatorial cities. Copyright © 2005 by ABCM.
dc.languageeng
dc.relationJournal of the Brazilian Society of Mechanical Sciences and Engineering
dc.relation1.627
dc.relation0,362
dc.rightsAcesso aberto
dc.sourceScopus
dc.subjectDesiccant system
dc.subjectEvaporative cooling
dc.subjectThermal comfort
dc.subjectAdsorbents
dc.subjectAdsorption
dc.subjectAir conditioning
dc.subjectAtmospheric humidity
dc.subjectCooling
dc.subjectMass transfer
dc.subjectPartial pressure
dc.subjectSteam turbines
dc.subjectThermodynamics
dc.subjectDehumidification
dc.subjectDesciccant cooling systems
dc.subjectEvaporative cooling systems
dc.titleAn evaporative and desiccant cooling system for air conditioning in humid climates
dc.typeArtículos de revistas


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