EXPERIMENTAL PERFORMANCE EVALUATION OF DESORBER IN A HYBRID ABSORPTION VAPOR COMPRESSION SYSTEM

dc.contributor.advisorHwang, Yunhoen_US
dc.contributor.authorMandel, Brachaen_US
dc.contributor.departmentMechanical Engineeringen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.date.accessioned2014-02-06T06:32:16Z
dc.date.available2014-02-06T06:32:16Z
dc.date.issued2013en_US
dc.description.abstractA single-effect absorption facility was designed and constructed to experimentally investigate the performance of a 3 kW mini-channel desorber using an R134a/POE32 solution mixture. The facility was fabricated to simulate a hybrid absorption/vapor compression system for an off-grid high temperature application utilizing an air-cooled absorber. Desorber design replicated the utilization of waste heat from a generator source. The effects of temperature, pressure, solution mass flow rate and refrigerant concentration variations on desorber and desorption performance were investigated and analyzed through vapor generation, circulation ratio, poor solution concentration, desorber mean heat transfer coefficient and quality difference. Desorber heat transfer coefficient enhancement was found to be a strong function of solution temperature, rising by up to 75% with a 30°C temperature increase. Due to poor absorber performance, increasing solution temperatures and mass flow rates did not result in a proportional desorber vapor generation enhancement, leading to a reduction in desorber quality difference.en_US
dc.identifier.urihttp://hdl.handle.net/1903/14852
dc.language.isoenen_US
dc.subject.pqcontrolledMechanical engineeringen_US
dc.subject.pquncontrolledabsorptionen_US
dc.subject.pquncontrolleddesorberen_US
dc.subject.pquncontrolledhybrid absorptionen_US
dc.subject.pquncontrolledPOE32en_US
dc.subject.pquncontrolledR134aen_US
dc.subject.pquncontrolledwaste heaten_US
dc.titleEXPERIMENTAL PERFORMANCE EVALUATION OF DESORBER IN A HYBRID ABSORPTION VAPOR COMPRESSION SYSTEMen_US
dc.typeThesisen_US

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