Adiabatic acceleration calorimeter (ARC 254)

• 1、 Instrument Introduction
• ●The fastest adiabatic tracking rate of ARC254 is up to 200K/min, which can provide a wider range of applications and more reliable data.
• ●Using specialized VariPhi ® Technology can fully or partially compensate for the thermal inertia of sample containers, even with small and safe sample sizes, and can achieve testing at low Φ values. This function can also be used for scanning calorimetry similar to DSC to detect the exothermic, endothermic transition, and specific heat of the sample.
• ●The instrument is powered by the powerful Proteus ® Software control seamlessly integrates with other Netzsch thermal analysis instruments in the laboratory.

ARC 254 can provide adiabatic thermal data in a safe and controllable laboratory environment. This information can help researchers gain a deeper understanding of the underlying physical processes involved. Starting from this, a variety of operational safety systems and processes can be developed to reduce the possibility of hazardous reactions in the reaction system.

ARC 254 synchronously measures temperature and pressure. The sealed pressure system allows users to evaluate the impact of different atmospheres on the thermal stability of the system.

At the end of the experiment, the gaseous reaction products can be analyzed to help identify and understand the relevant reaction mechanisms.

ARC 254 can model small-scale processes to simulate large-scale reactions. The testing principle is to heat the material to be tested in a certain volume of testing chamber until an exothermic effect is detected. The sample is in an adiabatic environment with no energy loss, and the temperature and pressure of the sample are measured and recorded by a calorimeter.

With just one experiment, the information obtained can be used for the following research:

• ●Thermal hazard assessment
• ●Pressure hazard assessment
• ●Thermodynamic analysis

Special consideration was given to user security in the design of ARC 254. Users are protected by a series of security systems that are completely independent of the control system and can protect users in the event of a main control system failure. ARC 254 is based on an easy to learn and use graphical interface that provides complete computer control and a high degree of automation. The system has an elegant and modern exterior design, and all commonly used functions are easy to use.

2、 ARC 254- Technical Parameters
●Temperature range: RT... 500 ° C
●Heat release detection threshold:<0.01 K/min
●Maximum temperature tracking rate in adiabatic mode: 200 K/min
●Sample container pressure range: 0... 200 bar
●Sample container specification: 0.5 .. 8.5 ml， Spherical or cylindrical; Standard equipment includes 8.5ml spherical shape, with a maximum optional 130ml spherical shape
●Sample container materials: titanium, Hastelloy, stainless steel, Inconel， Glass, etc
●Following ASTM standard: E1981
●Chemical application options: mixing, injection, discharge system
●Provide battery testing accessories that can perform tests such as thermal runaway, isothermal calorimetry, charge discharge cycling, puncture, etc

3、 ARC 254- Software Features
Absolute heat related software functions:
●Calculation of adiabatic temperature difference and heat release.
●Calculation of adiabatic temperature difference and heat release after correcting thermal inertia.
●TMR curve, TD24 calculation. (Supports both traditional zero order approximation extrapolation and Nike's unique nonlinear numerical solution algorithms)
●The TMR curve after correcting thermal inertia is compared with TD24 calculation.
●Simulate and calculate the adiabatic temperature rise curve at any specified thermal inertia and starting temperature.
●Display the first-order derivative curve of temperature and pressure: temperature change rate, pressure change rate.
●Display the relationship between pressure and time/temperature.
●Dynamics fitting calculation, supporting 14 different mechanism functions, directly obtaining kinetic parameters such as activation energy, pre exponential factor, reaction order, etc.
●...
Scanning calorimeter related software functions:
●Obtain the heat absorption and release power curve of the sample. Label the reaction peak temperature, starting point, ending point, reaction enthalpy, and other information on it.
●Peak area (enthalpy of reaction) annotation supports multiple baseline types (linear, inverse curve, tangent, horizontal left/right start, tangent left/right start, Bezier curve, zero baseline)
●Label the changes in pressure over time/temperature during the reaction process. The first-order WeChat business can obtain the pressure change rate curve.
●It can be compared and displayed in the same spectrum with other thermal analysis curves such as DSC and TGA.
●Specific heat analysis function.
●...
Other standard software features (Proteus characteristics):
●Dozens of test curves can be loaded and analyzed simultaneously within a working interval, and various measurement data such as ARC, DSC, TG, DIL, DMA, etc. can be analyzed and compared within the same working interval.
●Any number of sub windows can be established within a work interval to analyze various parts of the analysis object, and can be saved as a single analysis file.
●The curve can be arbitrarily enlarged/reduced and coordinate adjusted.
●Picture in picture and picture in picture switching function.
●Graphic splitting function.
●Level 16 smoothing function.
●Merge/split and fit connections for multiple temperature ranges.
●First order WeChat business and second-order WeChat business.
●Data point labeling function.
●Insert text and other object functions.
●Powerful data import function, capable of importing any ASCII code data in table format.
●The analysis chart can be exported as images PDF、 Output to clipboard or export as ASCII text file.
●Flexible and diverse customization settings.
●...