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A datacenter cooling apparatus includes a portable housing having lifting and transporting structures for moving the apparatus, opposed sides in the housing, at least one of the opposed sides defining one or more air passage openings arranged to capture warmed air from rack-mounted electronics, oppo

A datacenter cooling apparatus includes a portable housing having lifting and transporting structures for moving the apparatus, opposed sides in the housing, at least one of the opposed sides defining one or more air passage openings arranged to capture warmed air from rack-mounted electronics, opposed ends in the housing, at least one of the opposed ends defining one or more air passage openings positioned to allow lateral passage of captured air into and out of the housing, and one or more cooling coils associated with the housing to receive and cool the captured warm air, and provide the cooled air for circulation into a datacenter workspace.

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1. A datacenter cooling apparatus, comprising: a portable housing having lifting and transporting structures for moving the apparatus,opposed sides in the housing, at least one of the opposed sides defining one or more air passage openings arranged to capture warmed air from rack-mounted electronics

1. A datacenter cooling apparatus, comprising: a portable housing having lifting and transporting structures for moving the apparatus,opposed sides in the housing, at least one of the opposed sides defining one or more air passage openings arranged to capture warmed air from rack-mounted electronics;opposed ends in the housing, at least one of the opposed ends defining one or more air passage openings positioned to allow lateral passage of captured air into and out of the housing; andone or more cooling coils associated with the housing to receive and cool the captured warm air, and provide the cooled air for circulation into a datacenter workspace,wherein the opposed sides each define one or more openings to engage with back-to-back computer racks. 2. The apparatus of claim 1, further comprising computer racks on opposed sides of the apparatus, and positioned to provide warm air to the apparatus. 3. The apparatus of claim 2, further comprising a space inside the housing between the opposed faces in the warm-air plenum whereby warm air may pass from one of the one computer rack to an opposed computer rack. 4. The apparatus of claim 1, further comprising skid mounts on the housing to permit movement of the apparatus using a mechanical lift. 5. The apparatus of claim 1, wherein the housing defines a width along the ends and a length along the sides that is greater than the width, and wherein the length is between about six feet and about eight feet. 6. The apparatus of claim 1, further comprising one or more fans mounted on the apparatus and positioned to circulate air from the electronics through the cooling coils and into the datacenter workspace. 7. The apparatus of claim 6, wherein the one or more fans are located near a top edge of the housing and are positioned to blow air vertically upward. 8. The apparatus of claim 7, wherein the one or more cooling coils are mounted horizontally below the fans. 9. The apparatus of claim 8, wherein the one or more cooling coils are rotatable into a vertical orientation for servicing. 10. The apparatus of claim 6, wherein the one or more fans are located on replaceable mounts with associated fan motor controllers. 11. The apparatus of claim 1, wherein the one or more cooling coils are arranged in a V formation and form a cool-air plenum that is separate from the warm air capture plenum. 12. The apparatus of claim 1, further comprising a wiring rack supported by the housing for holding networking cable in a position to be interfaced with the rack-mounted computers. 13. The apparatus of claim 1, further comprising anchors on the housing having attachment points for computer racks to provide seismic support for the racks. 14. The apparatus of claim 1, further comprising a barrier near a periphery of the housing, the barrier having sealed openings for permitting passage of cooling water piping to the cooling coils. 15. The apparatus of claim 14, wherein the openings are in a floor of the apparatus and define an opening longitudinal axis that forms a substantial angle with an apparatus longitudinal access so as to permit positioning of piping along a diagonal of the apparatus. 16. The apparatus of claim 1, further comprising rollers located near a bottom portion of the apparatus configured to engage tracks for permitting lateral movement of the apparatus. 17. A data center cooling system comprising a plurality of apparatuses as recited in claim 3, wherein the apparatuses are positioned in one or more end-to-end substantially linear arrangements, and computer racks are located on opposed sides of the apparatuses. 18. The system of claim 17, wherein the plurality of apparatuses define an apparatus pitch and the computer racks define one or more rack pitches, and wherein the apparatus pitch differs substantially from the rack pitches. 19. The system of claim 17, wherein two or more of the plurality of apparatuses are separated by an end-to-end distance. 20. A data center cooling system, comprising: a plurality of cooling modules aligned end-to-end in one or more rows;sides on the cooling modules defining openings for capturing warm air from electronics racks mounted to the cooling modules; andends on the cooling modules defining openings for passing air into and out of the cooling modules along a row of cooling modules,wherein the cooling modules in a row are positioned to have open spaces between adjacent cooling modules and wherein the spaces are sufficiently sealed from a data center workspace to form a warm air capture zone. 21. The system of claim 20, further comprising one or more cooling coils in each cooling module positioned between the warm air capture zone and a circulation fan suction zone. 22. The system of claim 21, wherein the cooling coil comprise a pair of opposed coils in a V formation. 23. The system of claim 21, further comprising one or more fans associated with each cooling module for drawing warm air through the cooling coils. 24. The system of claim 20, further comprising electronic equipment racks in rows on opposed sides of the cooling unit rows to provide warm air to the cooling units. 25. The system of claim 24, wherein the cooling units define a cooling unit pitch and the electronic equipment racks define one or more rack pitches, and wherein the cooling unit pitch differs substantially from the rack pitches. 26. The system of claim 20, wherein the warm air capture plenum is contiguous along an entire row of the data center. 27. The system of claim 20, wherein the cooling units in one or more rows are unevenly spaced along the one or more rows. 28. The system of claim 20, further comprising wiring racks supported by the cooling units for holding networking cable in a position to be interfaced with electronic equipment cooled by the system. 29. The system of claim 20, further comprising a plurality of support structures extending upward from a data center floor and forming a plurality of rows of support structures, wherein each of the rows of cooling units envelops a row of support structures so that the support structures are out of a working area of the data center. 30. The system of claim 29, wherein the cooling units comprise air cooling and circulation units having one or more air circulation fans and one or more cooling coils. 31. The system of claim 29, wherein the cooling units define spaces between adjacent cooling units, and the support structures are located in the defined spaces. 32. The system of claim 29, further comprising a plurality of computer server racks defining substantially linear rows on opposed sides of each of the rows of cooling units. 33. A modular data center cooling apparatus, comprising: a housing sized for over-the-road transport and having four sides, and a top surface and bottom surface, and defining an interior volume;one or more cooling coils arranged within the interior volume so as to thermally separate portions of the interior volume, so as to create a cool air plenum on one side of the coils and one or more warmed air plenums on opposed sides of the coils; andone or more fans positioned to circulate air through the cooling coils;wherein at least three of the sides and the top surface or bottom surface are open, so that substantial airflow may pass through the open sides or surfaces;wherein the open sides each define one or more openings to engage with computer racks that back up to the sides, so that the apparatus can circulate air through the computer racks. 34. The apparatus of claim 33, further comprising an open space inside the housing that connects a first side having an opening to engage with a computer rack, to a second side having an opening to engage with a computer rack. 35. The apparatus of claim 33, wherein the one or more fans are positions to circulate air from the computer racks through the cooling coils and into a data center workspace around the apparatus. 36. The apparatus of claim 35, wherein the one or more fans are located at or near the top surface of the housing and are positioned to blow air vertically upward. 37. The apparatus of claim 36, wherein the one or more cooling coils are mounted horizontally below the fans. 38. The apparatus of claim 33, wherein the one or more cooling coils are arranged in a V formation between the cool air plenum and the one or more warm air plenums. 39. The apparatus of claim 34, further comprising a barrier near a periphery of the housing, the barrier having sealed openings for permitting passage of cooling water piping to the cooling coils. 40. A data center cooling system comprising: a plurality of apparatuses positioned in one or more end-to-end substantially linear arrangements, each apparatus comprising: a housing sized for over-the-road transport and having four sides, and a top surface and bottom surface, and defining an interior volume, at least two of the sides and the top surface or bottom surface are open, so that substantial airflow may pass through the open sides or surfaces, the open sides each define one or more openings to engage with computer racks that back up to the sides, so that the apparatus can circulate air through the computer racks;one or more cooling coils arranged within the interior volume so as to thermally separate portions of the interior volume, so as to create a cool air plenum on one side of the coils and one or more warmed air plenums on opposed sides of the coils; andone or more fans positioned to circulate air through the cooling coils; andone or more computer racks located adjacent the open sides. 41. The system of claim 40, wherein the plurality of apparatuses define an apparatus pitch and the computer racks define one or more rack pitches, and wherein the apparatus pitch differs substantially from the rack pitches. 42. The system of claim 41, wherein two or more of the plurality of apparatuses are separated by an end-to-end distance. 43. A data center cooling system, comprising: a frame comprising four side openings, a top opening, and a bottom opening defining an interior volume;at least one cooling coil mounted within the interior volume and securable to the frame, the cooling coil thermally separating the interior volume into a cold air plenum adjacent a first face of the cooling coil and a warm air plenum adjacent a second face of the cooling coil opposite the first face;at least one sealing member mounted on the frame to substantially prevent airflow between the bottom opening and the top opening; andone or more fans mounted to the frame and arranged to generate airflow through one or more computer racks supporting electronics adjacent at least two of the side openings and through the at least two side openings to the top opening. 44. The system of claim 43, wherein the frame is configured to receive at least two of the one or more computer racks directly adjacent the at least two side openings. 45. The system of claim 43, wherein the one or more fans mounted to the frame are arranged to generate airflow through the four side openings and to the top opening. 46. The system of claim 43, further comprising skid mounts on the frame to permit movement of the system using a mechanical lift. 47. The system of claim 43, wherein the frame defines a width along two of the four side openings, and a length along the other two of the four side openings that is greater than the width, and wherein the length is between about six feet and about eight feet. 48. The system of claim 43, wherein the fans circulate air warmed by the electronics through the at least two side openings and into the warm air plenum. 49. The system of claim 43, wherein the one or more fans are located near a top edge of the frame and are positioned to expel air vertically upward away from the frame. 50. The system of claim 43, wherein the at least one cooling coil is mounted horizontally below the one or more fans. 51. The system of claim 43, wherein the at least one cooling coil is rotatable into a vertical orientation for servicing. 52. The system of claim 43, wherein the one or more fans are located on replaceable mounts with associated fan motor controllers. 53. The system of claim 43, wherein the at least one cooling coil comprises two cooling coils are arranged in a V formation, and wherein the cool air plenum is located in the middle of the V formation, and the warm air plenum comprises two warm air plenums located on the outside of the V formation. 54. The system of claim 43, further comprising a wiring rack supported by the frame for holding networking cable in a position to be interfaced with the electronics. 55. The system of claim 43, further comprising anchors on the frame having attachment points for the computer racks to provide seismic support for the racks. 56. The system of claim 43, further comprising rollers located near the bottom opening of the frame and configured to engage tracks for permitting lateral movement of the system. 57. The system of claim 43, wherein the frame comprises a first frame, the system further comprising a second frame comprising four side openings, a top opening, and a bottom opening defining an interior volume, and the second frame abuts the first frame at corresponding side openings of the first and second frames. 58. The system of claim 57, wherein the first and second frames are separated by an end-to-end distance. 59. The apparatus of claim 33, wherein the housing is sized for over-the-road transport in a fully assembled state. 60. The system of claim 43, wherein the frame is sized for transport by truck from a manufacturing facility to a data center.