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A system for providing air to electrical systems includes a conduit having a passageway, an inlet portion, and one or more exits. The conduit may couple with an opening in the raised floor. The inlet portion of the conduit may receive air from the sub-floor space and pass the air to the passageway.

A system for providing air to electrical systems includes a conduit having a passageway, an inlet portion, and one or more exits. The conduit may couple with an opening in the raised floor. The inlet portion of the conduit may receive air from the sub-floor space and pass the air to the passageway. The exits may direct air from the passageway through rack air inlets of a rack computing system.

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1. A system for performing computing operations, comprising: a computing room comprising a raised floor;a sub-floor space under the raised floor;one or more rack computing systems in the computing room, wherein at least one of the rack computing systems comprises: a rack comprising one or more rack

1. A system for performing computing operations, comprising: a computing room comprising a raised floor;a sub-floor space under the raised floor;one or more rack computing systems in the computing room, wherein at least one of the rack computing systems comprises: a rack comprising one or more rack air inlets; andone or more computing devices in the rack;one or more conduits, wherein at least one of the conduits comprises: one or more passageways;one or more inlet portions configured to couple with one or more openings in the raised floor, wherein at least one of the inlet portions is configured to receive air from the sub-floor space and pass at least a portion of the air to at least one passageway of the one or more passageways; anda plurality of nozzles connected to the at least one passageway of the one or more passageways and configured to direct air out of the at least one passageway across at least one gap to at least one rack air inlet of at least one of the rack computing systems, wherein a particular nozzle of the plurality of nozzles has an exit cross-sectional area that is smaller than an inlet cross-sectional area of the particular nozzle and a particular exit orifice having a particular exit orifice cross-sectional shape, and the particular nozzle is configured to provide a particular airflow pattern to a particular position of a particular rack computing system, wherein a different nozzle of the plurality of nozzles is configured to provide a different airflow pattern to a different position of the particular rack computing system, and wherein the different nozzle has a different exit orifice having a different exit orifice cross-sectional shape that differs from the particular cross-sectional shape of the particular nozzle. 2. The system of claim 1, wherein the one or more conduits are separate from the one or more rack computing systems. 3. The system of claim 1, further comprising an air moving device coupled to at least one of the conduits, wherein the air moving device is configured to draw air from the sub-floor space and move at least a portion of the air through at least one of the passageways. 4. The system of claim 1, wherein at least a portion of at least one of the conduits is configured to inflate from air in at least one of the passageways, wherein at least one of the plurality of nozzles is configured to direct air into the at least one rack air inlet when the at least a portion of the conduit is inflated. 5. A system for providing air to electrical systems in a rack, comprising: a conduit comprising: one or more passageways;one or more inlet portions configured to couple with one or more openings in a raised floor, wherein at least one of the inlet portions is configured to receive air from a sub-floor space and pass at least a portion of the air to at least one of the passageways; anda plurality of nozzles connected to the at least one passageway of the one or more passageways and configured to direct air out of the at least one passageway across at least one gap to one or more rack air inlets of the rack, wherein a particular nozzle of the plurality of nozzles has an exit cross-sectional area that is smaller than an inlet cross-sectional area of the particular nozzle and a particular exit orifice having a particular exit orifice cross-sectional shape, and the particular nozzle is configured to provide a particular airflow pattern to a particular position of a particular rack computing system, wherein a different nozzle of the plurality of nozzles is configured to provide a different airflow pattern to a different position of the particular rack computing system, and wherein the different nozzle has a different exit orifice having a different exit orifice cross-sectional shape that differs from the particular cross-sectional shape of the particular nozzle. 6. The system of claim 5, further comprising an air moving device coupled to the conduit, wherein the air moving device is configured to move air through at least one of the passageways. 7. The system of claim 6, wherein the air moving device is below the raised floor. 8. The system of claim 5, wherein at least a portion of the conduit is configured to inflate from air in at least one of the passageways, wherein at least one of the plurality of nozzles is configured to direct air into the at least one of the rack air inlets when the at least a portion of the conduit is inflated. 9. The system of claim 5, wherein at least a portion of the conduit is made of a fabric. 10. The system of 5, further comprising a variable flow device, wherein the variable flow device is operable to change a rate of air flow through the particular nozzle based on operation of an internal fan of a server that is configured to receive air from the particular nozzle, and wherein the server is supported by the rack. 11. The system of claim 5, wherein each of at least two of the plurality of nozzles is configured to direct air to a different rack air inlet. 12. The system of claim 5, further comprising a seal configured to inhibit leakage of air passing from the sub-floor space into the conduit. 13. The system of claim 5, wherein the conduit comprises a plurality of branches, wherein each of at least two of the branches is configured to direct air into rack air inlets of a different rack than at least one other of the branches. 14. The system of claim 5, further comprising a controller coupled to an air moving device or at least one variable flow device, wherein the controller is operable to change a rate of air flow through at least one of the plurality of nozzles. 15. The system of claim 5, further comprising at least one flow control device configured to cause air to flow through the particular nozzle at a particular rate and to cause the air to flow through the different nozzle at a different rate. 16. A method of providing air from below a floor in a room to a rack computing system in the room, comprising: conveying air from a sub-floor space below the floor into a conduit, wherein the conduit is configured to at least partially segregate the air in the conduit from air in an aisle of the room; and directing, via a plurality of nozzles coupled to the conduit, at least a portion of the air out of the conduit across a gap to a rack air inlet of the rack computing system, wherein a particular portion of the air is directed via a particular nozzle with an exit cross-sectional area smaller than an inlet orifice cross-sectional area of the particular nozzle having a particular exit orifice with a particular exit orifice cross-sectional shape, and wherein a different portion of the air is directed at a different portion of the rack via a different nozzle that has a different exit orifice with a different exit orifice cross-sectional shape that differs from the particular cross-sectional shape of the particular nozzle. 17. The method of claim 16, further comprising pressurizing at least portion of the air in the sub-floor space relative to ambient air in the room. 18. The method of claim 16, wherein conveying air from the sub-floor space comprises drawing the air from the sub-floor space into the conduit and forcing at least a portion of the air drawn from the sub-floor space into the conduit. 19. The method of claim 16, further comprising controlling a flow rate through at least a portion of the conduit based on one or more characteristics of air in the rack computing system or the room. 20. The method of claim 16, wherein conveying air from the sub-floor space below the floor comprises: cutting an opening in a tile in the floor; andcoupling the conduit with the opening such that at least a portion of air that moves through the opening is conveyed through the conduit to the rack air inlet. 21. The system of claim 1, wherein the sub-floor space comprises a sub-floor plenum, the system further comprising one or more air moving devices configured to pressurize the sub-floor plenum, wherein the at least one inlet portion is configured to receive air from the sub-floor plenum. 22. The system of claim 5, wherein the particular nozzle includes multiple air exits, each air exit having a corresponding exit cross-sectional area and the particular nozzle exit cross-sectional area comprises a sum of exit cross-sectional areas of the multiple air exits. 23. The system of claim 5, wherein the particular nozzle is configured to direct air at an angle relative to a direction perpendicular from a surface of the conduit. 24. The system of claim 5, wherein the particular nozzle is configured to have an adjustable angle of orientation.