Project Planning Information For Indirect Heating; Heating System Design - Honeywell Ecomax Series Technical Information

Project planning information for indirect heating

7 Project planning information for indirect heating

7 .1 Heating system design

When designing a radiant tube heating system, it must
be ensured that the energy can be transferred to the
furnace chamber via the surface of the radiant tube
to avoid exceeding the maximum permissible flue gas
temperature at the recuperator inlet of the burner.
It must also be ensured that the permitted material
temperature of the radiant tube and, in the case of sin-
gle ended radiant tubes, of the flame tube used is not
exceeded.
Burner Max. flue gas temperature at recuperator inlet
ECOMAX..C
ECOMAX..M/ECOMAX..P
ECOMAX..F
The possible radiation output in the furnace depends
on the furnace temperature and the surface of the radi-
ant tube as well as the material that the radiant tube
and burner are made of.
The burner capacity also depends on how efficient the
burner is.
The heat exchange must be determined to ensure safe
design of a radiant tube heating system. To this end,
please consult a member of the sales team.
ECOMAX · Edition 10.17
[°C] [°F]
1250 2282
1150 2102
1050 1922
100
90
80
70
60
50
40
30
20
10
0
700 800 900
SER-C with ECOMAX..C
SER-M with ECOMAX..M
Depending on the system configuration, it may be nec-
essary to reduce the power input on the basis of the
furnace temperature, e.g. by reducing the duty cycle.
In this case, the combustion time should not exceed
2 minutes to avoid thermal overload of the radiant tube
and burner.
100 %
1000 1100 1200 1300
Furnace temperature [°C]
Furnace temperature
100
90
80
70
60
50
40
30
20
10
0
48