REMKO Fin-tube heat exchanger - Manual (Page 6)

6
REMKO
FIN-TUBE HEAT EXCHANGER
The compact design of the fin-tube heat
exchanger makes it possible to use high-
performance heating coils in the lowest
part of the tank.
This provides for the optimum use
of the tank's entire volume for heat
absorption. This also provides for
layering of the water in the tank that
facilitates heat exchange. The heating
coils also show little pressure loss inside
the tube.
Operation
To operate the fin-tube heat exchange
economically and to conserve energy,
the water temperature in the tank
should be set as low as possible.
A circulation pump that circulates the
heating medium between the heating
appliance and the heat coil is generally
needed to heat the tank.
Description
Fin-tube heat exchangers are designed
especially to provide hot water or
process hot water tanks with additional,
indirect heat, e.g. with a solar thermal
system.
The following heating media can be
used:
hot water, district hot water and district
steam, heat carriers such as Antifrogen
L, Antifrogen N, PKL 100 and PKL 300.
New tanks, whether these are
galvanised or clad with plastic, can be
equipped and existing systems can of
course be retrofitted with the built-in
fin-tube heat exchanger.
The SF-CU fin-tubes are made from
seamless tubing, and all connecting
points are hard-soldered with silver
solder. Once soldered, the heating
coils are galvanised, wrapped helically
and equipped with complete insulating
screw connections then mounted on an
enamelled flange plate in such a way
that they are electrically insulated.
A coated steel sheet cap lined with
a flexible foam insert covers the flange.
This reduces the heat emission.