Patent ID: 9075582
Filing Date: 2015-07-07
Classification: G06F,H05K

Abstract:
1. A method of facilitating extraction of heat from an electronic subsystem, the method comprising: providing at least one heat sink to cool at least one electronic component of the electronic subsystem of an electronics rack, the at least one heat sink comprising at least one coolant-carrying channel for coolant to flow therethrough, the coolant providing two-phase cooling to the at least one electronic component and being discharged from the at least one heat sink as coolant exhaust with coolant vapor; providing a node-level condensation module in association with the electronic subsystem, and coupling in fluid communication the at least one heat sink and the node-level condensation module, the node-level condensation module receiving the coolant exhaust from the at least one heat sink, the node-level condensation module being liquid-cooled and facilitating condensing of the coolant vapor in the coolant exhaust; automatically controlling at least one of the liquid-cooling of the at least one heat sink or the liquid-cooling of the node-level condensation module; and providing a control valve directing coolant flow to the at least, one heat sink and to the node-level condensation module for the liquid-cooling thereof, the control valve being automatically controlled by a controller; and wherein the control valve divides liquid coolant flow received at the electronic subsystem from a rack-level coolant supply manifold of the electronics rack between the at least one heat sink and the node-level condensation module, the control valve being automatically controlled by the controller to automatically adjust a fraction of received coolant flow provided to the at least one heat sink based on a temperature associated with the at least one electronic component.