To facilitate an effective steam heating of the bitumen-saturated micromodel in the absence of an undesired heat loss, a high-precision vacuum test rig, capable of providing 10−6 torr of vacuum pressure was used as is depicted in Fig. 3.
A high-precision inverted-bell vacuum chamber was used to minimize the heat losses from the glass-etched micromodels to the surrounding environment while steam was injected under different superheating levels.
A novel method for heat loss prevention during the course of in situ bitumen recovery using the SAGD process was utilized with the aid of a high-precision inverted-bell vacuum chamber.
The objective of the study was to determine the seed spacing uniformity performance of a precision metering unit when vacuum plates with different number of holes were used.
This paper resumes the study of the development of high precision joints performed by vacuum brazing as part of the fabrication of accelerating structures and other parts of particle accelerators.
Further, past work looking at the utility of DBS has found the same level of precision and reproducibility as vacuum tubes and capillary pipettes [ 16], and DBS are considered a Food and Drug Administration registered in vitro class 11 medical device.
A single manufacturer should build ITER's vacuum chamber, a high-precision device that must operate with perfect symmetry.
At its core, densely packed high-precision equipment will encase a cavernous vacuum chamber, in which a super-hot cloud of heavy hydrogen will rotate faster than the speed of sound, twisting like a strand of DNA as it circulates.
The 100 µm-thick gas-permeable PDMS membrane was made by spinning premixed 10∶1 ratio of PDMS prepolymer and curing agent (Sylgard 184 kit, Dow Corning) on a thoroughly cleaned silicon wafer vacuum-adhered to a precision spinner (Laurel).
The auxiliary system includes a crusher, portal jib crane, air pump, vacuum pump, vacuum gauge, hydrogen precision pressure gauge, vortex flowmeter and pressure machine.
