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http://dx.doi.org/10.7731/KIFSE.2012.26.3.079

An Investigation on the Thermal Characteristics of Heat-Responsive Element of Sprinkler Head  

You, Woo-Jun (Dept. of Mechanical Engineering, Chung-Ang Univ.)
Moon, Hyo-Jun (Dept. of Mechanical Engineering, Chung-Ang Univ.)
Youm, Moon-Cheon (Dept. of Test & Certification, Korean Fire Institute of Industry & Technology)
Ryou, Hong-Sun (Dept. of Mechanical Engineering, Chung-Ang Univ.)
Publication Information
Fire Science and Engineering / v.26, no.3, 2012 , pp. 79-84 More about this Journal
Abstract
In this study thermal characteristics of heat-responsive element considering conduction, convection and rate of change of element using Response Time Index (RTI) applied to sensitivity test of sprinkler head at home and aborad are theoretically investigated. Analytic solution of temperature distributions with radial direction and time is obtained form energy transport equations, non-homogeneous 2th order partial differential equation, applying to constant wall temperature and symmetric condition in order to analyze thermal characteristics of heat-responsive element for circular cylindrical geometry. Base on the results, the analytic method of this study is fundamental data to practical use for sensitivity test of sprinkler head and design of heat-responsive element.
Keywords
Heat-responsive element; Response time index; Sprinkler head; Sensitivity test; Energy transport equation; Wall temperature; Symmetric condition; Design method;
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