In the mid-80s FAI introduced the RSST which was in 1998
was superseded by the Advanced Reactive System Screening Tool (ARSST). The
ARSST was brought out for hazards assessors who do not require the full data
that the VSP2 gives but do require basic information on process upset
conditions.
The ARSST is based upon a small (5-20ml) spherical glass
test cell. This test cell is then heated by a wrap around heater which can
bring the sample temperature to 400DegC. Due to the unique polynomial heating
method the sample is kept in a quasi-adiabatic mode and no heat is lost to the
surrounding. Also the test setup is results in a low phi factor and the data
can be applied directly to the process scale.
Description and Capabilities:
- Easy setup for fast test turnaround
- Quickly screen new and existing processes for thermal
hazards
- Lightweight glass test cell with good mixing
- Open or closed cell tests & small sample size
- Flow regime detector distinguishes between foamy and
non-foamy behavior
- Scanning and isothermal modes
The data that is directly collected from the reactive
system is
As the ARSST measures the temperature and pressure of
the system thus allowing the determination of
- Rate of temperature rise
- Rate of pressure rise
- Heat of reaction
- Heat of mixing
- Total adiabatic temperature rise
- Onset temperature
- Tempering temperature
- Self-accelerating decomposition temperature
- Time to maximum rate
| VSP2 |
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See also the information
about the VSP2 from Fauske |
For
further information and prices, please click
here.
Please also visit the Fauske website for further
information:
