| 摘要 |
<p>A bi -phase coolant rear door heat exchanger. Also, a method of cooling air which has passed over heat -generating equipment using a heat exchanger through which bi-phase coolant is passed. Also, a cooling unit comprising a first passageway through which coolant fluid is passed when the unit is in use, and a second passageway through which coolant fluid is passed when the unit is in use, portions of the first and second passageways being thermally coupled to one another so as to constitute a heat exchanger of the unit. The coolant fluid which passes through the said second passageway when the unit is in use is passed to at least one heat exchanger in a space which is to be cooled. Coolant fluid in the said second passageway is at least partially gaseous when the unit is in use. The heat exchanger of the unit is constituted by a condenser. The unit further comprises at least one pressure sensor connected to monitor the pressure in the said second passageway and a parameter adjuster connected to enable adjustment of a parameter of coolant fluid in the said first passageway. The coolant fluid in the said at least one heat exchanger is in a bi-phase state when the unit is in use. The unit further comprising a processor connected to receive signals from the said at least one pressure sensor, and to issue signals to the parameter adjuster to adjust a parameter of coolant fluid in the said first passageway. This changes the pressure in the said second passageway when the unit is in use, thereby to control the temperature of the coolant in the said at least one heat exchanger. Also, a method of cooling a space comprising passing coolant fluid through a first passageway when the unit is in use, and passing a coolant through a second passageway, portions of the first and second passageways being thermally coupled to one another so as to constitute a heat exchanger. The coolant fluid which passes through the said second passageway is passed to at least one heat exchanger in the space which is to be cooled. Coolant fluid in the said second passageway is at least partially gaseous and the heat exchanger constituted by portions of the said first and second passageways constitutes a condenser, the coolant fluid in the said at least one heat exchanger is in a bi -phase state. A parameter of the coolant fluid in the said first passageway is changed to change the pressure of the coolant fluid in the said second passageway, thereby to control the temperature of the coolant in the said at least one heat exchanger.</p> |
