Accelerating Rate Calorimeter 254 (ARC®)

Accelerating Rate Calorimetry

  • More reliable data and a wider range of application due to the fastest tracking rate up to 200 K/min
  • Patented VariPhi® technology can realize low phi test even with a small and safe sample size. Effective detection of both exothermic and endothermic transitions and sample Cp can be achieved by the versatile operating modes on ARC® 254
  • Controlled by the same powerful Proteus® software which user can use to operate all other NETZSCH thermal analysis instruments in the lab. 

The Accelerating Rate Calorimeter 254 (ARC® 254) provides adiabatic calorimetry data in a safe, controlled laboratory environment. This information helps provide a sound understanding of the fundamental physical processes involved. From this understanding, various safe operating systems and procedures can be developed to mitigate the hazards posed by a reactive system.

The Accelerating Rate Calorimeter 254 (ARC® 254) simultaneously measures temperature and pressure. The sealed pressure system also allows the user to evaluate the effect of different gas atmospheres on the thermal stability of the system.

Gaseous reaction products may be analyzed at the end of an experiment to help identify and understand the reaction mechanisms involved.

The Accelerating Rate Calorimeter 254 (ARC® 254) is designed to model the course of a large-scale reaction on a small scale. A test material is externally heated in a fixed volume until exothermic activity is detected. Keeping that sample in an adiabatic environment where no energy is lost, the calorimeter then measures and records the sample temperature and pressure.

Accelerating Rate Calorimeter ARC® 254Accelerating Rate Calorimeter ARC® 254

A single experiment provides data for use in the following:

  • Thermal Hazard Evaluation
  • Pressure Hazard Evaluation
  • Thermokinetic Analysis

User safety is a key objective in the design of model 254. The user is protected by a series of safety systems that are completely independent of the control system. These safety systems work to protect the user in the event that the primary control system fails. Fully computer-controlled and highly automated, the Accelerating Rate Calorimeter (ARC® 254) features a graphical interface that is easy to learn and use.

The system is totally integrated into clean, modern designs in which all routinely used equipment is easily accessible.


Key Technical Data

(subject to change)

  • Minimum Detectable Slope:
    < 0.01 K/min
  • Temperature Range:
    RT to 500°C
  • Operating Test Cell Pressure Range:
    0 to 200 bar
  • Pressure Accuracy:
    0.35% of full scale
  • Sample container volume:
    0.5 ml - 8.5 ml
  • Tracking rate at adiabatic operation
    up to 200 K/min
  • Test cell materials:
    • Stainless steel
    • Inconel
    • Hastelloy
    • Glass
  • Stirring, injection, and vent capability (options)
  • ASTM standard:
    E1981

VariPhi®


Software

NETZSCH Proteus® Measurement software: Proven Technology Leader

  • Data is automatically saved to hard-drive throughout the run
  • Intelligent Firmware monitors the status and health of key operating sensors and active components
  • Safety integrated with hardware and firmware controls
  • Seamless integration of data files to Proteus® Analysis, NETZSCH Advanced Software Tools or 3rd party software
  • Data is automatically saved to hard-drive throughout the run
  • Intelligent Firmware monitors the status and health of key operating sensors and active components
  • Safety integrated with hardware and firmware controls
  • Seamless integration of data files to Proteus® Analysis, NETZSCH Advanced Software Tools or 3rd party software

Applications

Accelerating Rate Calorimeters can be used for the thermal analysis of solid or liquid chemicals or for gas/liquid, liquid/liquid, gas/solid, and liquid/solid mixtures. They can also be used for process simulation of batch and semi-batch reactions, battery testing, fire exposures, emergency relief venting, and physical properties measurement.


Accessories


  • Various sample vessels
  • Specific battery accessory: Heat-Wait-Search
  • VariPhi® sensor:  isothermal mode for 18650, D-cell, pouch cell.
  • Nail penetration test

Literature

Poster

Press

White Paper

White Paper

Lithium ion battery technology offers many advantages in portable power application but one major concern is safety – thermal runaway of the device in both normal and abusive situations. In the White Paper it will be shown that it is not only possible to test single components but also complete lithium ion batteries.

White Paper

Lithium Ion is becoming the technology choice for HEV, PHEV, as well as many stationary applications. The White Paper explains how the unique combination of adiabatic and isothermal testing are best suited for looking at thermal runaway of cells within packs for the design of safety features and to minimize the risks of internal shorting leading to thermal runaway.

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Accelerating Rate Calorimeter 244 (ARC®)

The cost-effective Accelerating Rate Calorimeter 244 (ARC® 244) is designed to safely measure the amount and rate of heat release associated with the processing or storage of chemicals with a sample volume of 0.5 ml to 7 ml. The key features are high performance, safety, usability, and flexibility with data integrity and robustness in a temperature range from ambient to 500°C.