Comparison of air distribution system alternatives serving a classroom-office portion of a school building

dc.contributor.advisorManteufel, Randall
dc.contributor.authorJordan, Stillman D., III
dc.contributor.committeeMemberKarimi, Amir
dc.contributor.committeeMemberShephard, Les
dc.descriptionThis item is available only to currently enrolled UTSA students, faculty or staff. To download, navigate to Log In in the top right-hand corner of this screen, then select Log in with my UTSA ID.
dc.description.abstractAn effective air distribution design accomplishes both comfort and ventilation requirements while consuming as little energy as possible. This paper analyzes four different air distribution systems and technologies including single duct variable air volume air handlers, chilled beam cooling systems, total energy recovery wheels, displacement ventilation, and dedicated outside air systems in an effort to compare air distribution systems for a representative section of a school in hot and humid climate. Distribution effectiveness and energy consumption are weighed against considerations such as system complexity and cost. Energy modeling calculations show that the Energy Utilization Index (EUI) of all of the analyzed designs are significantly less than the median EUI of schools in south Texas. Chilled beams are not well suited for schools because of the large amount of outside air required by the space and the sophisticated design and operation needed to prevent condensation from occurring at the chilled beam. Payback calculations show that even though new technologies like displacement ventilation and dedicated outside air systems reduce total energy consumption, they are not realistic design solutions because they have paybacks that exceed 100 years. The calculations also show the total energy recovery wheels result in a 16% energy savings over a baseline central variable air volume distribution system because of the large amount of outside air required in school buildings.
dc.description.departmentMechanical Engineering
dc.format.extent84 pages
dc.subjectChilled Beams
dc.subjectDisplacement Ventilation
dc.subjectPayback Analysis
dc.subjectSchool Air Distribution
dc.subjectSchool Ventilation
dc.subjectSensitivity Energy Models
dc.subject.classificationMechanical engineering
dc.subject.classificationArchitectural engineering
dc.titleComparison of air distribution system alternatives serving a classroom-office portion of a school building
dcterms.accessRightspq_closed Engineering of Texas at San Antonio of Science


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