1

The density of the total heat flux incident on the calculated area

q i n = q int + q i n r t + q i n s + q i n r s + q i c o n + q i c p

kW/m2

2

The fraction of power released in the gas volume of the torch

Р 1 : Р 2 : : Р n = T 1 3 V 1 : T 2 3 V 2 : : T n 3 V n

3

The density of the heat flux of radiation incident on the calculated area from the torch (the first law of heat radiation from cylindrical gas volumes)

q i n t = 1 n ϕ t j i P t j F i e k l

kW/m2

4

The density of the heat flux of radiation caused by the reflection of the torch radiation from the surfaces to the calculated area

q i n r t = 1 n P t j ψ j k ϕ t j k e k l F k

kW/m2

5

The density of the heat flux of radiation incident on the calculated area from the radiating surfaces

q i n s = 1 n ϕ j i Q j s F i e k l

kW/m2

6

The density of the heat flux of radiation caused by the reflection of radiation from the surfaces and incident on the calculated area

q i n r s = 1 n Q j s ( ψ j k ϕ j k ) e k l F k

kW/m2

7

The density of the convective flux from the torch and products of combustion on the calculated area

q i c o n = α c o n ( t g a v t p )

kW/m2

8

The density of radiation fluxes from products of combustion on the calculated area

q i c p = 1 n ϕ c p j i P c p j F i e k l

kW/m2

9

The flux of the corresponding surface radiation

Q j s = ε j c s ( T j / 100 ) 4 F j

kW