Lithium battery heat release rate testing system
According to
ANSI/CAN/UL 9540A: 2019
The Lithium battery heat release rate testing system refers to UL 9540A and calculates the heat release rate based on the principle of oxygen consumption.
Used to detect the combustion behavior and performance of lithium batteries under thermal runaway conditions, and to measure key data such as heat release rate, total heat release, and smoke density. The combustion performance data of lithium batteries under thermal runaway conditions can be obtained through experiments, and the fire and explosion hazard characteristics of battery energy storage systems can be reflected through the testing of heat release rate.
This system is used in conjunction with pressure vessel testing equipment, Fourier sampling analysis system, total carbon hydrocarbon sampling analysis system, and hydrogen sensor, and can meet the requirements of UL 9540A Cell Different levels of testing requirements for Mod ule, Unit, and Installation.
Lithium battery heat release rate testing system consists of
· The smoke hood and smoke pipe are made of 304 stainless steel material, with a diameter of 400mm. A flow equalizer device is used before and after the smoke exhaust pipe to ensure uniform gas flow.
· The fan has a smoke exhaust capacity of 4kg/s and is equipped with an independent variable frequency control cabinet. The fan frequency can be continuously adjusted to reduce signal interference and includes a fan damping system.
· The testing section adopts a flexible interface, which can be used to connect temperature thermocouples, sampling tubes, differential pressure probes, optical systems, flow rate calibration devices, infrared temperature sensors, etc. It is easy to disassemble and maintain, and easy to operate.
· Equipped with OMEGA thermocouple for measuring the temperature of flue gas inside the smoke pipe and the ambient temperature.
· The optical system includes a transmitting end and a receiving end. The light source uses imported light bulbs and is equipped with a voltage regulator for power supply; The receiving end adopts an imported optical path receiver with stable and reliable signals, and has multi-level optical path calibration and verification functions.
· Measure pressure difference using bidirectional probes and SETRA differential pressure sensors that meet standard requirements.
· Equipped with a dedicated oil pan for verifying the stability and accuracy of the heat release testing system.
· Optional independent Kc verification device for measuring wind speed distribution inside smoke pipes.
· Optional heat flux testing system and temperature acquisition system to meet different levels of testing requirements.
· Adopting an independent standard gas sampling system with built-in multi-stage filtration, pressure regulation, and flow regulation devices, the gas is pre treated with an imported condenser and desiccant to ensure that the gas entering the analyzer is dry, clean, and stable. The pipeline is made of all stainless steel structure, which is aesthetically pleasing, generous, and has a long service life. Used in conjunction with the sampling tube in the testing section.
· Paramagnetic O₂ analyzer and infrared CO₂, CO analyzer, oxygen range 0-25%, CO ₂: 0-10%, CO: 0-1%; Oxygen accuracy<0.02%, repeatability<0.01%, CO ₂ accuracy 0.1 ppm, CO accuracy 0.1 ppm, repeatability 0.1 ppm. Response time<8s.
· The electrical control adopts the company's independently designed electrical cabinet, which is equipped with an integrated touch computer and SIEMENS control module to achieve functional control and data acquisition.The upper computer software is designed based on the NI Labview platform and is equipped with multiple calibration modes. It calculates and displays parameters such as volume flow rate, heat release rate, and smoke generation in real-time in waveform form, and can achieve functions such as data recording, calibration report and test report output viewing.
If you have a particular need for fire test instruments or are just in the planning stage, let's contact us.
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