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dc.contributorDepartment of Civil and Structural Engineeringen_US
dc.creatorCao, Nanying-
dc.publisherHong Kong Polytechnic University-
dc.rightsAll rights reserveden_US
dc.titleAir tightness measurement and numerical simulation in the micro environment in Han Yang Mausoleum Museumen_US
dcterms.abstractAs the first underground museum, Han Yang Mausoleum museum adopts whole sealing glass system to protect relics from destruction while providing visitors a wonderful environment to enjoy the fantastic artwork closely at different angles. But from its open, this method cannot stop relics from destruction and weathering by covering the surface with crystalloid salt. Following the problems, this study measured air tightness of the display hall with tracer gas concentration decay method and simulated its micro environment including temperature, air movement and relative humidity numerically via CFD software Fluent. In this study, the display hall shows better good tightness with 0.04h⁻¹ air change rate which provides relic preservation a great environment like reducing the pollutants concentration level from exchange but it cannot prevent the pollutant gases penetrating into the display hall. Unstable is the air change rate affected by outside climate conditions and not uniform is it in the whole space. The more times opening the door, the bigger the air change rate. The suggested solution is reducing the times of staff coming in and out. After simulation under the actual heating system. micro-environment did not perform perfectly as expected: Four gas cyclones are found; there are trends that temperature is getting lower from one side to another while relative humidity is in the opposite situation especially at low height near the ground. After estimating the given suggested case, relative humidity distribution is even worse therefore suggested case should not be adopted.en_US
dcterms.extentix, 60 leaves : ill. ; 30 cm.en_US
dcterms.isPartOfPolyU Electronic Thesesen_US
dcterms.educationalLevelAll Masteren_US
dcterms.LCSHHong Kong Polytechnic University -- Dissertationsen_US
dcterms.LCSHIndoor air qualityen_US
dcterms.LCSHTombs -- Conservation and restoration -- China -- Shaanxi Shengen_US
dcterms.accessRightsrestricted accessen_US

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