塞尔维亚热力工程师协会
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作者:Jordan Y. Hristov , Gregory J. Griffin
来源:[J].Thermal Science(IF 0.838), 2017, Vol.21 (5), pp.2177-2187塞尔维亚热力工程师协会
摘要:The melt/shrink effects on the fire behavior of low density thermoplastic foam have been studied in a cone calorimeter. The experiments have been performed with four samples of expanded polystyrene foams having different thicknesses and two extruded polystyrene foams. Decrease in...
作者:Jordan Y. Hristov
来源:[J].Thermal Science(IF 0.838), 2015, Vol.19 (3), pp.947-957塞尔维亚热力工程师协会
摘要:This work presents an attempt to apply the heat-balance integral approach to diffusion models with fading memories with weakly singular kernels resulting in closed-form solutions. The main steps are exemplified by solutions where the fading memory is represented by Volterra integ...
作者:Jordan Y. Hristov , Mohammed El Ganaoui
来源:[J].Thermal Science(IF 0.838), 2013, Vol.17 (2), pp.581-589塞尔维亚热力工程师协会
摘要:Simple 1-D semi-infinite heat conduction problems enable to demonstrate the potential of the fractional calculus in determination of transient thermal impedances under various boundary conditions imposed at the interface (x=0). The approach is purely analytic and very effective b...
作者:Jordan Y. Hristov
来源:[J].Thermal Science(IF 0.838), 2015, Vol.19 (2), pp.723-733塞尔维亚热力工程师协会
摘要:The communication presents a closed form approximate solution of the nonlinear diffusion equation of a power-law nonlinearity of the diffusivity developed by the heat-balance integral method. The main step in the initial transformation of the governing equation avoiding the Kirch...
作者:Jordan Y. Hristov
来源:[J].Thermal Science(IF 0.838), 2014, Vol.14 (2), pp.291-316塞尔维亚热力工程师协会
摘要:The fractional (half-time) sub-model of the heat diffusion equation, known as Dirac-like evolution diffusion equation has been solved by the heat-balance integral method and a parabolic profile with unspecified exponent. The fractional heat-balance integral method has been tested...
作者:Jordan Y. Hristov
来源:[J].Thermal Science(IF 0.838), 2016, Vol.20 (6), pp.1867-1878塞尔维亚热力工程师协会
摘要:A new approach to integral-balance solutions of the diffusion equation of heat (mass) with constant transport properties by applying time-fractional semi-derivatives and semi-integrals of Riemann-Liouville sense has been developed. The time-fractional semiderivatives and semiinte...
作者:Jordan Y. Hristov
来源:[J].Thermal Science(IF 0.838), 2016, Vol.21 (1A), pp.69-80塞尔维亚热力工程师协会
摘要:The paper addresses approximate integral-balance approach to a time-fractional diffusion equation of order 0 < μ < 1 with a time-dependent diffusion coefficient of power-law type D(t)=D0tβ where 0 < β < 1. The form of the solution spreading in a semi-infinite medium through ...
作者:Jordan Y. Hristov
来源:[J].Thermal Science(IF 0.838), 2016, Vol.21 (1A), pp.309-321塞尔维亚热力工程师协会
摘要:This paper presents approximate analytical solutions of an initial-boundary value problem of fractional partial differential diffusion equation with spatial Riemann-Liouville fractional derivative. The proposed approximate solutions are based on the concept of a finite penetratio...
作者:Mariana Hristova , Dimitar Damgaliev , Jordan Y. Hristov
来源:[J].Thermal Science(IF 0.838), 2013, Vol.17 (3), pp.905-910塞尔维亚热力工程师协会
摘要:Simple data correlation of flashpoint data of binary mixture has been developed on a basic of rational reciprocal function. The new approximation requires has only two coefficients and needs the flashpoint temperature of the pure flammable component to be known. The approximation...
作者:Jordan Y. Hristov , Liying Cao
来源:[J].Thermal Science(IF 0.838), 2013, Vol.17 (3), pp.785-792塞尔维亚热力工程师协会
摘要:Fire behaviour of a vinyl based lining material with and without anti-corrosion painting has been evaluated through 35 and 50kW/m2 cone calorimeter tests. The minimum heat flux requited for surface ignition was estimated. The data were compared by those provided by a revised...

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