Advanced Search

Journal Navigation

Journal Home

Subscriptions

Archive

Contact Us

Table of Contents

CiteULike is a free service for managing and discovering scholarly references - click here to get started.

Sign In to gain access to subscriptions and/or personal tools.
Journal of Fire Sciences
This Article
Right arrow Full Text (PDF)
Right arrow References
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Add to Saved Citations
Right arrow Download to citation manager
Right arrowRequest Permissions
Right arrow Request Reprints
Right arrow Add to My Marked Citations
Citing Articles
Right arrow Citing Articles via Google Scholar
Right arrow Citing Articles via Scopus
Google Scholar
Right arrow Articles by Wang, Z.-H.
Right arrow Articles by Tan, K.-H.
Right arrow Search for Related Content
Social Bookmarking
Add to CiteULike   Add to Complore   Add to Connotea   Add to Del.icio.us   Add to Digg   Add to Reddit   Add to Technorati   Add to Twitter  
What's this?

Radiative Heat Transfer for Structural Members Exposed to Fire: An Analytical Approach

Zhi-Hua Wang

School of Civil and Environmental Engineering, Nanyang Technological University Singapore 639798, Singapore, Department of Civil and Environmental Engineering, Princeton University New Jersey 08544, USA, zhihuaw{at}Princeton.EDU

Kang-Hai Tan

School of Civil and Environmental Engineering, Nanyang Technological University Singapore 639798, Singapore

An analytical approach, as a reduced form of the more general multi-flux and discrete ordinates method for radiative transfer, is proposed in this article with clarified theoretical basis. The main assumption inherent in the proposed method is that the radiation intensities along positive and negative paths are isotropic and have constant values in each direction. A realistic nonisothermal absorbing/emitting medium with isotropic scattering is analytically treated between fire sources and structural members. General energy equations, including possible heat generation within the medium, can be adopted to solve for radiative flux and temperature distribution along the radiation path. The usage of the `optical length' can readily incorporate the compound and realistic extinction coefficient of a participating medium, including gas and particle absorption and particle scattering effects. Application of the proposed method to temperature predictions of unprotected steel members in fire yields good accuracy and reliable stability, especially for those with large section factors.

Key Words: thermal radiation • structures • fire • two-flux method • nonisothermal.

Journal of Fire Sciences, Vol. 26, No. 2, 133-152 (2008)
DOI: 10.1177/0734904107085746
Add to CiteULike CiteULike   Add to Complore Complore   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us   Add to Digg Digg   Add to Reddit Reddit   Add to Technorati Technorati   Add to Twitter Twitter    What's this?