The indirect cooling method can make the air from inside and outside perform indirect heat exchange to achieve the effect of cooling the wind generator cabin without bringing dust and corrosive gases from outside into the cabin.
The main component of the indirect cooling system is the BXB plate heat exchanger. In the BXB plate heat exchanger, two channels are separated by aluminum foil. The air in the cabin is closed circulation, and the outside air is open circulation. The two airs are doing heat exchange. The air in the cabin transfers heat to the outside air, which reduces the temperature in the wind generator. In addition, the air inside and outside the cabin will not be mixed due to the isolation of aluminum foil, which prevents dust and corrosive gases outside the cabin from being brought into the cabin.
Cooling effect analysis
Neem een 2 MW-eenheid als voorbeeld: de warmteontwikkeling van de motor bedraagt 70 kW, het circulerende luchtvolume in de machinekamer is 7000 m³/u en de temperatuur bedraagt 85 °C. Het externe circulerende luchtvolume is 14000 m³/u en de temperatuur bedraagt 40 °C. Met behulp van de BXB1000-1000 plaatwarmtewisselaar kan de luchttemperatuur in de cabine worden verlaagd tot 47 °C en kan het warmteafvoervermogen oplopen tot 72 kW. De relevante parameters zijn als volgt:
Introduction to indirect cooling system
