Phi-TEC II: A Bench-Top, Low Phi-Factor, Adiabatic Calorimeter

The Phi-TEC II is an adiabatic calorimeter, which supports the use of low Phi-factor test cells. This allows for manufacturing plant conditions to be fully replicated on a lab-scale thus allowing thermal runaway risks to be simulated and assessed.  Utilizing low-Phi factor cells means that the runaway rate is not tempered by the test equipment, and subsequently, the measured rate of pressure increase and final temperature (Tend) – along with the calculated Time to Maximum Rate (TMRd) and adiabatic temperature rise (∆Tad,d) – are representative of what would be expected to occur during a production-scale incident 

The impact of different operating scenarios can be explored using the Phi-TEC II, and the data generated can be utilized to determine appropriate safety controls for the manufacturing plant, such as:

  • Emergency and evaporation cooling
  • Quenching
  • Controlled depressurization
  • Vent sizing (in accordance with DIERS methodology)

Thus, the Phi-TEC II enables hazards to be fully evaluated, enabling their mitigation prior to scale-up.

Features and Options

Test Cells Types and Volumes

  • Thin-walled, 10ml to 110 ml, low Phi-factor test cells.
  • Also compatible with standard ARC-type high Phi-factor test cells, up to 10 ml volume.

Temperature Control 

  • Ambient to 500°C.

High Pressure and Vacuum Systems 

  • Pressure range 1 to 137 bar.

Sampling Systems 

  • Optional: gas sampling.

Reagent Addition

  • Optional: High-pressure liquid feed pump for dosing of a critical ingredient at a controlled rate to the reaction vessel.
  • Optional: High-pressure injector for rapid addition of a critical ingredient to the test cell, replicating plant-scale conditions. 

Stirring available 

  • Indirect agitation with magnetic stirrer bar as standard; fixed stirring rate of 300 rpm.
  • Optional: Direct overhead stirring available for metal test cells for effective agitation of highly viscous samples.

Intelligent Software Control and Analysis 

  • labCONSOL software control enables regular data logging, multi-step recipes, parameter control, and feedback loops. The software adds a responsive intelligence to the Phi-TEC II system and still delivers an intuitive interface that needs only minimal training to run quickly.
  • Customizable standard plans allow for easy running of the system with automated heating, detection of gas generation, and safety steps
  • Optional: High data rate acquisition available for characterizing extremely fast reactions (up to 10 000 Hz).
  • Optional: Bespoke testing methods.

Safety Features 

  • Automatic, user-configurable, event monitoring and shutdown procedures if a safety condition is exceeded to ensure user safety.
  • Automatic hardware and software fail-safes are installed on every system.

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