|
Further Information
Further information on the Accelerating Rate Calorimeter and
EV-ARC™ including technical papers and brochures can be
accessed here
Sample Testing
As part of THT's commitment to providing a service to
everyone involved with hazard analysis we provide sample
testing and consultancy services.
Spares and Consumables
Spares and consumables for all accelerating rate
calorimeters can be found here along with specific upgrade
options.
|
Adiabatic Calorimetry the way it was meant to be.
An understanding of the energy release from
chemical reactions is
vitally important in the chemical industries. When the heat
generated by a chemical process is greater than the heat
removal then the temperature will rise with perhaps
catastrophic effect. On a laboratory scale, only an
adiabatic calorimeter can reliably evaluate such conditions
as it reproduces the worst case, zero heat loss conditions
of a large scale process.
The Accelerating Rate
Calorimeter is the most widely used and respected adiabatic
calorimeter in the world and provides a quantitative
analysis of the temperature and pressure generation for a
process. This allows optimum conditions to be employed
whilst ensuring inherently safe operation.
Developed by The Dow
Chemical Company, the Accelerating Rate Calorimeter is in
use in over 200 laboratories around the world and the
re-engineered instrument offered by Thermal Hazard
Technology extends the ease of use and application of the
original. In addition to a strong and durable calorimeter
and enclosure, options allow for vent sizing, gas sampling,
battery safety testing and low temperature testing. The
semi-automated data analysis yields temperature and pressure
rates, self-heat rate, time to maximum rate and temperature
of no return amongst other parameters.
The Accelerating Rate
Calorimeter is in use in a huge range of chemical processing
areas, from explosives to detergents and from batteries to
resins. It can detect exotherms from as little as 0.005
°C/min, corresponding to as little as 100W/tonne. It can
test all manner of materials from high energy solids to low
energy gases for safety applications in processing, storage
or transportation.
|
|
Specification |
| Temperature
range |
Ambient
to 500°C |
| Sub
Ambient Operation |
-40
to 400°C
with CSU option |
| Temperature
Precision |
0.01°C |
| Temperature
Accuracy |
0.1°C |
| Pressure
Range |
0-200
bar
0-10,000 bar by adding
alternative transducers |
| Detection
of Exotherm |
To
500°C 0.02°C/min
To 400°C 0.01°C/min
To 300°C 0.005°C/min |
| Phi
Value |
From
1.2 with standard
specification 'bomb'
From 1.1 with low phi
container |
| Tracking
Rate |
20°C/min
with standard
calorimeter
100°C/min with fast tracking
calorimeter |
| System
Requirements |
Electrical
200v 13A
Cooling Air 5 bar/75 psi |
| Footprint |
81cm
x 166cm x 71cm
(width x height x depth) |
| Power
Supply |
Single
phase |
|
|
|
Options |
| Low
Phi |
Sample
container for
Ø below 1.1 (depending
on sample Cp) |
| Fast
Tracking Calorimeter |
Tracking
to 100°C/min |
| Cryogenic
System |
Lowers
ambient
temperature to -40°C |
| Stirring |
Stirring
and agitation to
200rpm with low phi
container |
| Dosing |
Manual
or Automated
pressure dosing options |
| Vent
Sizing |
Option
to allow tempering
and blow down tests |
| Battery
Stufies |
Two
options for shorting,
aging, overcharging
abuse and use testing of
batteries |
ES-ARC calorimeter assembly
Selection of ARC bombs
See
also.....
|
thermal
hazard
