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The ARC is the world benchmark adiabatic calorimeter. It is focused on safety in handling, processing and storing of potentially hazardous materials.
The ARC provides realistic worst case simulations of exothermic runaway reactions.
The ARC is an adiabatic calorimeter, meaning
that during the run, no heat is exchanged
between the sample and the surrounding
environment. This allows for very accurate
calculations of how much heat is released
from a reaction that goes out of control, total
pressure that builds up, as well as the
temperature increase.
The ARC operates in a heat-wait-search mode.
First the external heater brings the
temperature to a starting point, then the system checks if there is a beginning exothermal which can heat up the sample with more than 0.005 ºC/min. This is the detection threshold for defining an exothermal. If none is found, the system heats up to the next level, waits and searches for an exothermal, and so on. When an exothermal has been identified, the system follows the heat development in the system, until the reaction is over or until it has reached a pre-set temperature. The containment vessel is designed to handle 7 grams of exploding TNT. In case the sample explodes.
The ARC calculate time to Maximum Rate, time to explosion, maximum pressure etc. These parameters can be used to design the safety precautions and rules around a particular material or process.
temperature to a starting point, then the system checks if there is a beginning exothermal which can heat up the sample with more than 0.005 ºC/min. This is the detection threshold for defining an exothermal. If none is found, the system heats up to the next level, waits and searches for an exothermal, and so on. When an exothermal has been identified, the system follows the heat development in the system, until the reaction is over or until it has reached a pre-set temperature. The containment vessel is designed to handle 7 grams of exploding TNT. In case the sample explodes.
The ARC calculate time to Maximum Rate, time to explosion, maximum pressure etc. These parameters can be used to design the safety precautions and rules around a particular material or process.
Specifications
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
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