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41.3: Simulations of Temperature and Stress Distributions of Lamps for Projection Systems
Author(s) -
Lee W. T.,
Lin H. S.
Publication year - 2002
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1889/1.1830153
Subject(s) - projector , reflector (photography) , finite element method , projection (relational algebra) , stress (linguistics) , tube (container) , thermal , mechanics , quartz , materials science , field (mathematics) , optics , acoustics , physics , mathematics , thermodynamics , composite material , light source , linguistics , philosophy , algorithm , pure mathematics
Lamp cooling is a critical problem for thermal design in a projection system. In the present study, numerical simulations of temperature and stress of a HID lamp are performed under real situation in a projector. The velocity fields of cooling air and temperature distribution of reflector and quartz tube were calculated first. After that, the temperature distribution was mapped to a finite element mesh with the same geometrical model. And then, the stress field was calculated.