Method and apparatus for cooling with coolant at a subambient pressure

摘要

An apparatus (10) includes heat-generating structure (12) disposed in an environment having an ambient pressure, and a cooling system for removing heat (21,22) from the heat-generating structure (12). The cooling system includes a fluid coolant, structure which reduces a pressure of the coolant to a subambient pressure at which the coolant has a boiling temperature less than a temperature of the heat-generating structure (12); and structure which directs a flow of the liquid coolant at the subambient pressure so that it is brought into thermal communication with the heat-generating structure (12), the coolant then absorbing heat and changing to a vapor. To be accompanied, when published, by Figure 1 of the drawings.