Setup of examplary calculation Product: Central vacuum system with one R5 RA 1000 B Production time: 12 h/day (10 h/day production, 2 h/day breaks), 250 days/year Electricity costs: 0.15 €/kWh Comparing a conventional R5 RA 1000 B with a R5 RA 1000 B with VSD Conventional R5 RA...
A molecular vacuum pump comprises a hollow stator (1) in the axial opening (2) of which is mounted, with a gap, a rotor (3) the external cylindrical surface (5) of which is provided with at least one annular groove (7) and, on sections (8, 9, 10, 11, 12, 13) between the ...
calculationandexperimentmethodsforpumpingperformanceofasingle 系统标签: 真空泵贯穿vanevacuumpumpingpump 仪器仪表/检测/监控现代制造工程(ModernManufacturingEngineering)2014年第3期 贯穿式旋片真空泵的性能计算与实验分析 倡 郝伟 (广东机电职业技术学院汽车学院,广州510515) 摘要:介绍了贯穿式旋片真空泵的结构及工作原理...
(seeequation (7)) to obtaing. One findsconfirming the value of the anomalous moment predicted by theory (equation (3)above) to about ±15%. The error in the mass value (∼ 10−4) limits the already remarkable accuracy of this calculation, and further improvement is hardly to be ...
based on a thermal conversion calculation when the gas pressure in the suction side is about 380 Torr. When the vacuum pump operates with the suction side of the pump being closed, a cooling gas is introduced into a discharge side of the pump to cool its inside. The cooling gas is ...
For a free rubrene molecule, the total energy of a twisted rubrene is smaller than that of a planar rubrene by about 163~210 meV based on the electronic structures calculation8,17,18. Thus, in vapor phase or in thin amorphous films, rubrene molecules possess the low energy state of ...
In this paper, the apparatus, performance, and calculation of uncertainties of the generated pressure are described. The charac- teristics of UHV gauges tested by this system are reported. The calibration and measurement capability (CMC) of this system including the typical uncertainty originating ...
The repulsive part of the potential is proportional to 1/r.The dispersion potential is a result of energy density fluctuations and is proportional to −1/r6. A rigorous calculation involving quantum electrodynamics reveals the more complex and nonadditive character of this force and shows that the...
For the calculation of the heat transport, the initial conditions for the coil [Equation (11)] and the ambience [Equation (12)] are set. (10) (11) (12) The temporal course of the calculated mean temperature of the coil during the heating process is plotted in Figure 13. At ...
As a result of experimental calculation of invading gas amount in the vacuum heat insulator 40 of embodiment 4, as compared with the case of cutting off by Thompson punching device without melting, the invading gas amount from the end of the enveloping member was decreased by about 10%. Embod...