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KMID : 0895420090190030240
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Journal of Korean Society of Occupational and Enviromental Hygiene
2009 Volume.19 No. 3 p.240 ~ p.249
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Numerical Study on Ventilation Method for Temperature Control of HRSG Building
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Kim Chul-Hwan
Yoo Geun-Jong
Choi Hoon-Ki
Lee Jong-Wook
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Abstract
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HRSG(Heat Recovery Steam Generator) building is large enclosed structure included various heat sources. This building needs to appropriately keep internal air temperature for worker’s safety and operability of control devices. In this study, ventilation analysis is performed to find proper ventilation method for temperature control. Ventilation analysis is applied to entire internal space of the building with standard k-εmodel and enhanced wall treatment because of large size of the tructure. And the ventilation method is considered natural and forced convection with two louver structures which has damper or not. Louver structure affect directly air circulation in near HRSG and lower region of the building. Forced ventilation provides strong inertial force which cause upward airflow. From the analysis, it is found that design requirement for internal air temperature can be satisfied by forced ventilation method with louver structure without damper.
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KEYWORD
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ventilation, HRSG building, numerical analysis, k-εmodel, louver structure
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