Abstract: A micro environmental control system that can remove or add 30W from or to the near range personal microenvironment of a user. For cooling, the ?X uses a micro vapor compression system during the un-occupied period to freeze a phase-change-material in a thermal storage module. A fan then moves air over the phase-change-material to deliver cooled air. Heating is delivered by a small electric heater integrated into a condensing unit. The resulting system is inexpensive to build and uses a limited amount of energy.

Abstract: A micro environmental control system that can remove or add 30W from or to the near range personal microenvironment of a user. For cooling, the ?X uses a micro vapor compression system during the un-occupied period to freeze a phase-change-material in a thermal storage module. A fan then moves air over the phase-change-material to deliver cooled air. Heating is delivered by a small electric heater integrated into a condensing unit. The resulting system is inexpensive to build and uses a limited amount of energy.

Abstract: An aspect of the disclosure provides a method comprising: providing a first portion of an exhaust gas from racks of computer devices in an enclosed aisle arrangement for cooling in an air cooling device; and diverting a second portion of the exhaust gas from the racks of computer devices to an underfloor plenum for mixing with a cooled gas provided by the air cooling device, forming a mixed cooling gas in the underfloor plenum; and providing the mixed cooling gas to the racks of computer devices.

Abstract: An improved scroll compressor lubrication system includes a number of embodiments wherein a lubricant port in the orbiting scroll supplies lubricant to the compression chambers throughout its entire orbiting cycle. The lubricant port is aligned with a recess in a flange of the fixed scroll throughout its entire orbiting cycle. In a further embodiment, the lubricant port is exposed to the compression chamber throughout its entire cycle. In other embodiments, the fixed scroll is provided with recesses spaced from each other by approximately 180.degree.. The lubricant port moves sequentially into and out of communication with these spaced recesses to supply lubricant to the compression chambers.