Capillary polypropylene exchangers for conditioning of museum aquariums (Tunisia)

The seawater extracted from a depth of 30 m has a constant temperature of about 18°C. This water can be used as cold source for the conditioning of Salammbô Museum aquariums (Tunisia). With this intention a passive system, using capillary polypropylene exchangers, is carried out. The tests show that this system has a good thermal efficiency of about 80%. In order to size this system, a numeric model is elaborated. The checking of this model shows a good agreement between the numerical results and measurements taken.

Mass flow (l.h-1) Fig. 9. Variation of the exchange coefficient according to the flow of circulation in the braids for a length equal to 0.8 m and a temperature 20–60°C.