Cooling the air exiting a computer

Abstract

Methods and arrangements for cooling the air exiting a computer are discussed. Embodiments include a method and apparatus to cool the air exiting a computer. The embodiments may also include blowing air out of an exhaust fan past one or more dilution air vents in the chassis of a computer. The embodiments may include pulling in air outside the chassis through the one or more dilution air vents, mixing the air pulled in from outside the chassis and the air blown through the exhaust fan, and blowing the mixed air through an exit vent. Other embodiments are described and claimed.

1 . A method of cooling the air exiting a computer, the method comprising:
 blowing air out of an exhaust fan past one or more dilution air vents in the chassis of a computer, the blowing air pulling in dilution air from outside the chassis through the one or more dilution air vents;   mixing the air pulled in from outside the chassis and the air blown through the exhaust fan; and   blowing the mixed air through an exit vent.   
   
   
       2 . The method of  claim 1 , wherein blowing air out of an exhaust fan comprises blowing air through a nozzle. 
   
   
       3 . The method of  claim 2 , further comprising:
 determining the area ratio of the nozzle, the determining based upon cooling the mixed air blown through the exit vent and based upon cooling components of the computer.   
   
   
       4 . The method of  claim 1 , wherein blowing air out of an exhaust fan past one or more dilution air vents comprises blowing air out of an exhaust fan past a pair of dilution air vents, the pair of dilution air vents lying on opposite sides of the computer. 
   
   
       5 . The method of  claim 1 , wherein blowing the mixed air through an exit vent comprises blowing the mixed air a distance of 5 mm to 15 mm between the fan exit and the exit vent. 
   
   
       6 . The method of  claim 1 , wherein blowing air out of an exhaust fan past one or more dilution air vents comprises blowing air out of an exhaust fan past a dilution air vent, the dilution air vent comprising one to five slits, the slits approximately 1 mm to 3 mm wide. 
   
   
       7 . The method of  claim 1 , wherein blowing air out of an exhaust fan past one or more dilution air vents comprises blowing air out of an exhaust fan past a dilution air vent, the dilution air vent comprising one or more slits, the slits approximately 20 mm to 80 mm long. 
   
   
       8 . An apparatus to cool the air exiting a computer, the apparatus comprising:
 a dilution section comprising one or more dilution air vents in the chassis of a computer, the dilution section to pull in air from outside the chassis in response to the blowing of air past the one or more dilution air vents;   an exhaust fan to blow air past the one or more dilution air vents;   a mixing section to mix the air pulled in from outside the chassis and the air blown past the one or more dilution air vents by the exhaust fan; and   an exit vent for the mixed air to exit the computer.   
   
   
       9 . The apparatus of  claim 8 , further comprising a nozzle, the nozzle located between the exhaust fan and the dilution section, the nozzle for air blown through the exhaust fan to blow through the nozzle. 
   
   
       10 . The apparatus of  claim 8 , wherein the dilution section comprises a pair of dilution air vents lying on opposite sides of the computer. 
   
   
       11 . The apparatus of  claim 8 , wherein the dilution section comprises one or more dilution air ducts comprising one to five slits, the slits approximately 1 mm to 3 mm wide. 
   
   
       12 . The apparatus of  claim 8 , wherein the dilution section comprises one or more dilution air vents comprising one or more slits, the slits approximately 20 mm to 80 mm long. 
   
   
       13 . The apparatus of  claim 8 , wherein the mixing section comprises a mixing section from 5 mm to 15 mm in length. 
   
   
       14 . The apparatus of  claim 8 , further comprising a dilution air duct to carry air over the one or more dilution air vents. 
   
   
       15 . The apparatus of  claim 14 , further comprising a mixing structure within the mixing section to perform active or passive mixing, wherein the mixing structure lies within the air duct.