Compact 70 7 0
Compact 70 7 0
Compact 70 7 0
COMPACT 70-7-0
Technical datasheet
Mechanical features:
Size and weight: Primary exchange surface:
Duct
External
connexion
diameter:
on725
themm
Primary side: Projected
Length of surface:
the surface:
56 m²
Duct
Internal
connexion
diameter:
on275
themm
Secondary side: Gap between
Plates thickness:
plates:
3/10 mm
Overall
Connexion
dimensions:
pipes: DN40 Weight: 175 kg
Weight:
Technical features:
To estimate your recuperator performances, please apply the 5-stages procedure below.
1. 0,75 kg/s
2. 91,5%
1. Trace a vertical straight line through the two graphs
corresponding to the exhaust gas flow rate.
2. On the top graph, read the effectiveness from the black
dashed curve and the left axis.
3. Depending on the pressure of the compressed air, read the
3. 4,3% total pressure drop on the right axis.
4. On the bottom graph, read the air pressure drop on the left
axis from the curve corresponding to the pressure of the air.
5. Read the pressure drop on the exhaust gas on the left axis
from the black dashed curve.
4. 6000 Pa
Example:
Let’s consider an exhaust flow rate of 0.75 kg/s and an air
5. 3600 Pa pressure of 6 bars (a) :
Computation notes:
In the here above charts, the curves are designed with an equivalent gas and air flow rate
The recuperator thermal power and the outlet temperature can be computed from the charts by
resolving the following equations :
where: the flow rates are in [kg/s], the heat capacity in [J/(kg.K] and the temperature in [C] or [K]
When innovation Acts for savings...
Exchangers in parallel:
Exchangers in line:
If the drop in pressure on the fumes, calculated from the graph, is lower than the
acceptable value for your system, it is then possible to recover more heat by using
a second exchanger in line with the first one.
The pressure drop on the fumes is then double the initial value. In this case, please
contact us for an estimate of other values.
Notes:
1. The graphs shown above give the possibility of drawing up an initial technical validation from the values of
your thermal energy source. Please note that you are welcome to contact us for further technical details.
2. For any sizing where hot gas is used to reheat the air or for generating steam, please contact us directly.
ACTE-SA