Problem destription: 
  Analysis of heat transfer in the capacity kiln.
Kiln consists of following parts:
1) outer - air
2) thermalite
3) chamotte porous
4) chamotte
5) inner - air
Geometry is as follows:
Width part inner-air    = 375mm
chamotte                = 455mm
chamotte porous         = 615mm
thermalite              = 815mm
Height part inner - air = 270mm
chamotte                = 350mm
chamotte porous         = 510mm
termalite               = 710mm
Parameters:
Heat conductivity of chamotte = 1[W/m*K]
porous                        = 0.1025 [W/m*K]
thermalite                    = 0.065[W/m*K]
air                           = 10[W/m*K]
Inner part:
temperature of heat sourte (air) = 1100 ~C
Outer surface:
temperature of air = 20~C
