Adiabatic Accelerated Calorimeter

An Accelerating Rate Calorimeter (ARC) is a high-precision thermal analysis instrument that assesses the thermal decomposition behavior and safety risks of chemical substances by monitoring sample temperature, pressure, and thermodynamic parameters in real time under adiabatic conditions.

Application

Battery Safety Research: Evaluating the thermal runaway characteristics of batteries under abusive conditions, providing key parameters of the thermal runaway process, such as self-heating onset temperature and thermal runaway initiation temperature.

Material Thermal Stability: Studying the thermal stability and thermal decomposition behavior of materials, and evaluating the thermal safety of materials.

Chemical Reaction Thermal Analysis: Analyzing the thermal effects of chemical reactions, providing thermodynamic parameters such as reaction heat and activation energy.

Safety Standard Development: Assisting in determining the safe operating range and runaway hazards of materials and products, providing references for the development of safety standards.

Standards

T/CIS 17007-2023:

Since "T/CIS" is not a widely - known, globally standardized prefix like some international or well - recognized national standard - setting body abbreviations, without specific context about the issuing organization (CIS here might refer to a certain industry association or similar entity in China), a general way to name it could be "Technical Specification T/CIS 17007 - 2023" (assuming it is a technical specification; if it's a different type of standard, the description before the number can be adjusted accordingly).

JJF 1059.1-2012:

Evaluation and Expression of Uncertainty in Measurement - Part 1: General Rules (JJF is the code for metrological verification regulations in China, and this standard is about the evaluation and expression of measurement uncertainty)

JJF 1001-2011:

General Terms in Metrology and Their Definitions (JJF 1001 is a fundamental standard in the field of metrology in China that defines general metrological terms)

Features

1. Supports Heating - Waiting - Scanning (HWS) mode, constant - temperature mode, isochronous scanning mode, etc. 2. Equipped with professional data - analysis software, enabling automatic calculation of parameters such as exothermic onset temperature, adiabatic temperature rise, activation energy, and pre - exponential factor.

3. The software integrates the safety risk assessment methods and standards for reactions in the *Guidelines for Safety Risk Assessment of Fine Chemical Reactions* issued by the former State Administration of Work Safety, enabling one - stop assessment of the hazard level of reaction processes.

4. Key components are from well - known international brands, ensuring the long - term and stable operation of the instrument.

5. After the experiment, an inert gas can be introduced to rapidly cool down the furnace body.

6. Features an experimental status indication function, as well as overpressure and over - temperature alarm functions.

7. The furnace cover has an automatic lifting function, ensuring safety and facilitating operation.

8. With professional industrial design, it is simple and elegant, has a user - friendly human - machine interaction, and is easy to learn, understand, and operate.

9. The data - analysis software incorporates the differential conversion - rate thermodynamics calculation method, which has significant advantages in the calculation of the thermal decomposition kinetics of mixed materials and the prediction of thermal hazards.

Parameters

Accessoriess

Core measurement system components

Temperature control and insulation system components

Sample handling system components

Safety and protection system components, etc.

FAQ

1.How does an adiabatic calorimeter work?

In principle, an adiabatic calorimeter is one in which heat is confined to the calorimeter usually by surrounding it with an adiabatic shield maintained at the temperature of the calorimeter. In practice, temperature gradients in the calorimeter and shield cause a net heat exchange during the experiment.

2.What is the difference between adiabatic and isothermal calorimetry?

The major difference between these two types of processes is that in the adiabatic process, there is no transfer of heat towards or from the liquid. On the other hand, in the isothermal process, there is a transfer of heat to the surroundings to make the overall temperature constant.

3.What does arc accelerating rate calorimetry primarily measure?

Accelerating Rate Calorimeter (ARC®) is a specialized calorimeter used to study the thermal stability and runaway behavior of chemicals and batteries (lithium-ion, sodium-ion). Primarily it was developed to measure thermal behavior of chemicals but now it is commonly used to evaluate the thermal safety of batteries.

4.Does adiabatic mean no heat flow?

In an adiabatic process, the temperature change is due to work done by, or on the system; there is no heat flow at all. Because γ is always greater than unity for a gas, (γ − 1) is always positive.

5.What is the difference between isothermal and adiabatic calorimetry?

Like isothermal calorimetry, adiabatic calorimetry measures heat exchange. The most notable difference between these two techniques is that while isothermal calorimetry requires constant temperature maintenance, adiabatic calorimetry permits no environmental heat losses.