Patent ID: 8747060
Filing Date: 2014-06-10
Classification: F03D,F05B,Y02E,Y02T

Abstract:
1. A system to cool the air inside a nacelle of a wind turbine, comprising: an upper cooling circuit, having a reservoir disposed below the nacelle, the reservoir having (1) at least one pair of annular chambers, and (2) a lid that freely rotates about its axis and about the nacelle yaw axis, wherein coolant flows from a first annular chamber to a second annular chamber through a heat exchanger in the nacelle, thereby carrying heat from the nacelle to the second annular chamber; and a lower cooling circuit, having a coil that connects the first annular chamber to the second annular chamber and is exposed to an outside of the wind turbine, wherein the coolant flows from the second annular chamber to the first annular chamber through the coil, thereby dissipating the heat to ambient air.