Variational formulation for a fractional heat transfer model in firefighter protective clothing
نویسندگان
چکیده
منابع مشابه
A Heat Transfer Model for Firefighters’ Protective Clothing, Continued Developments in Protective Clothing Modeling
In the year 2000, a paper entitled ‘‘A Heat Transfer Model for Firefighters’ Protective Clothing’’ was published in Volume 36, No. 1, of Fire Technology, and it received the 2001 Harry C. Bigglestone Award for Excellence in Written Communication of Fire Protection Concepts from The Fire Protection Research Foundation. Since the publication of this paper, there has been additional development of...
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Firefighting is a dangerous occupation that relies heavily on the effectiveness of protective clothing. This type of protective clothing must resist heat, flame, rough surfaces, and sharp objects as well as protect the wearer against biological/chemical surfaces. In order to address these issues, a survey was administered to firefighters to determine necessary changes that would make the presen...
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The aim of this study was to analyse the transfer of steam through different types of textile layers as a function of sample parameters such as thickness and permeability. In order to simulate the human body, a cylinder releasing defined amounts of moisture was also used. The influence of sweating on heat and mass transfer was assessed. The results show that in general impermeable materials off...
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Clothing is often made of materials that impede the flow of heat and moisture from the skin to the environment. Consequently, people may suffer from heat stress or cold stress when wearing clothing in different environmental conditions. Therefore it is important to quantify the thermal resistance and evaporative resistance of clothing materials and to consider these properties when selecting ma...
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We propose a variational formulation for the nonequilibrium thermodynamics of discrete open systems, i.e., discrete systems which can exchange mass and heat with the exterior. Our approach is based on a general variational formulation for systems with time-dependent nonlinear nonholonomic constraints and time-dependent Lagrangian. For discrete open systems, the time-dependent nonlinear constrai...
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ژورنال
عنوان ژورنال: Applied Mathematical Modelling
سال: 2016
ISSN: 0307-904X
DOI: 10.1016/j.apm.2016.05.035