Modeling thermal environment of a recirculating aquaculture system facility

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dc.contributor.authorSingh, Sahdeven
dc.contributor.departmentAgricultural Engineeringen
dc.date.accessioned2014-03-14T21:52:41Zen
dc.date.adate2008-12-30en
dc.date.available2014-03-14T21:52:41Zen
dc.date.issued1993en
dc.date.rdate2008-12-30en
dc.date.sdate2008-12-30en
dc.description.abstractEconomic viability of fish production in recirculating aquaculture system (RAS) facility depends on minimizing the energy requirements of operating such facilities. The fish growth and water quality aspects of RAS have been studied in considerable details. However, the understanding of the thermal environment of RAS lags behind. A step-wise steady-state thermal model was developed to simulate the daily heating, ventilation, water pumping, biofilter operation, and lighting energy requirements over a production cycle. The model was validated using temperature and energy data collected from RAS facility of Virginia Tech during 1992. Model simulations were performed with various production scenarios. The energy cost of fish production ($/kg) was used to evaluate different scenarios with and without heat recovery from discharged system water. Building heating required the most (40 % - 70 % of total) energy followed by water pumping, biofilter operation, lighting, and ventilation. Water replacement was the most dominant factor in determining the facility’s heating energy requirement. Heat recovery from discharged system water indicated significant drop (up to 40 %) in energy cost of fish production.en
dc.description.degreeMaster of Scienceen
dc.format.extentxi, 146 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-12302008-063343en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-12302008-063343/en
dc.identifier.urihttp://hdl.handle.net/10919/46442en
dc.language.isoenen
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V855_1993.S564.pdfen
dc.relation.isformatofOCLC# 28552960en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V855 1993.S564en
dc.subject.lcshAquacultural engineering -- Modelsen
dc.subject.lcshFish hatcheriesen
dc.subject.lcshHeat -- Transmission -- Modelsen
dc.titleModeling thermal environment of a recirculating aquaculture system facilityen
dc.typeThesisen
dc.type.dcmitypeTexten
thesis.degree.disciplineAgricultural Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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