What does VacTran do?
Calculates the pump down time of a vacuum system, with and without gas loads
Models conductance elements such as pipes and elbows, and determine their effect on the delivered speed of the system
Models raw data conductance elements representing conductance vs. pressure
Calculates the rate of pressure rise for a vacuum vessel based on its gas load
Models vacuum pumps and raw data gas loads with full editing features, including a pump curve digitizer utility
Models surface outgassing, permeations, and leaks, and calculate the rate of rise for a vacuum vessel
Graphs a multitude of vacuum system calculations with flexible plotting parameters that are easily changed
Creates professional-looking graphs that can be used in publications or presentations or saved in standard graphics formats
Models conductance elements such as pipes and elbows, and determine their effect on the delivered speed of the system
Models raw data conductance elements representing conductance vs. pressure
Calculates the rate of pressure rise for a vacuum vessel based on its gas load
Models vacuum pumps and raw data gas loads with full editing features, including a pump curve digitizer utility
Models surface outgassing, permeations, and leaks, and calculate the rate of rise for a vacuum vessel
Graphs a multitude of vacuum system calculations with flexible plotting parameters that are easily changed
Creates professional-looking graphs that can be used in publications or presentations or saved in standard graphics formats
Typical applications
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Particle accelerators
Semiconductor production systems Infrared spectroscopy Space simulation chambers High-power laser systems Sputter coating systems Freeze drying equipment |
Scanning electroscopy
Uranium enrichment chambers Physical vapor deposition Plasma electrode Pockels cells Fusion target chambers Pump manufacturers Vacuum furnaces |
Core function: the System Model
Pump stations: one or more pumps working in parallel, plus one or more conductance elements in series. A system model can have up to six pump stations. A pump station can have an unlimited number of pumps and conductances.
Pumps: independent model files referenced by the pump station. Each pump model contains pump speed vs pressure information.
Conductance elements: piping components that have specific flow characteristics associated with their geometry.
Gas Loads: Gas Load elements are either parametric (calculated) or raw data (provided by user). Examples of parametric gas loads are permeation and out gas models. A system model can have unlimited gas load elements.
Pumps: independent model files referenced by the pump station. Each pump model contains pump speed vs pressure information.
Conductance elements: piping components that have specific flow characteristics associated with their geometry.
Gas Loads: Gas Load elements are either parametric (calculated) or raw data (provided by user). Examples of parametric gas loads are permeation and out gas models. A system model can have unlimited gas load elements.
Vacuum System calculations
VacTran creates graph output of vacuum system performance with numerous options.
What does VacTran not do?
Perform safety-related calculations, such as vessel structural stress or buckling
Draw CAD-like renderings of vacuum systems
Provide data acquisition or control interfaces with hardware (such as pressure gages)
Perform Monte-Carlo modeling or Computational Fluid Dynamics modeling
Calculate conductance of arbitrary, free form geometries
Model complex networks of piping or multiple vacuum vessels
Calculate back pressure effects at the exhaust side of vacuum pumps
Draw CAD-like renderings of vacuum systems
Provide data acquisition or control interfaces with hardware (such as pressure gages)
Perform Monte-Carlo modeling or Computational Fluid Dynamics modeling
Calculate conductance of arbitrary, free form geometries
Model complex networks of piping or multiple vacuum vessels
Calculate back pressure effects at the exhaust side of vacuum pumps
