Journal of the Japan Society of Erosion Control Engineering, Vol.61,No.1,2008
Heat transfer into shelter buried by pyroclastic flow and insulation methods
Takashi YAMADA
Abstract
Temperature conditions were evaluated inside the Kaliadem village shelter, which
was buried by the main body of pyroclastic flow from the Mount Merapi eruption
on June 14, 2006. Numerical analysis of one]dimensional steady state, two]dimensional
steady]state, and non]steady]state heat transfer into the shelter was performed
to determine the effectiveness of insulation materials lining shelter doors, the
changes in doors' thermal conductivity, and the effects of door thickness on temperature
reduction. Results show that average temperatures inside the shelter greatly exceed
human body temperature in every scenario except when doors are lined with cellulose
insulation. When the shelter is buried by a pyroclastic flow with a maximum temperature
of 800Ž, the average temperature inside the shelter can be reduced below human
body temperature if double doors are lined with at least 85cm of cellulose, or
triple doors are lined with at least 55cm of cellulose.
Key wordsFshelter, pyroclastic flow, heat transfer analysis, thermal insulation
Japan Society of Erosion Control Engineering
Sabo Kaikan Bekkan 3F, 2-7-5 Hirakawa-cho, Chiyoda-ku, Tokyo
Phone +81-3-3222-0747 Fax +81-3-3230-6759
http://www.jsece.or.jp/
Mail jimu@jsece.or.jp