1MW Battery Thermal Release Test System

TESTech Instrument (Suzhou) Technologies is one of the leading manufacturers and suppliers of 1mw battery thermal release test system in China. Welcome to wholesale premium test equipment at competitive price from our factory. If you have any enquiry about quotation, please feel free to email us.

• This large heat release test system is developed with reference to the heat release measurement methods specified in ISO 9705, GB/T 20286-2006, GB/T 27904-2011, and GB/T 25207-2010, as well as large-scale foreign heat release systems.
• The theory of heat release measurement is based on the proportional relationship between pure combustion calorific value and oxygen consumption, where combustion of each kilogram of oxygen generates 13.1 MJ/kg of heat.
• Measured parameters include heat release of test gases, ignition time, oxygen consumption rate, CO generation rate, CO2 generation rate, and gas flow.
• The sampling system is designed with reference to foreign studies on airflow sampling methods, velocity distribution across exhaust duct sections, and flow stabilization sections, so as to ensure stable and accurate smoke gas sampling.
• The duct includes built-in temperature sensors, gas flowmeters, gas samplers, and multi-stage filtered sampling pipelines to ensure long service life of the analyzers.
• The Labview software control system in the Windows environment automatically acquires, analyzes, and records test data, and calculates heat release rate, total heat release, smoke density release, and related parameters while generating detailed test reports.

• The system consists of the exhaust system, specimen fixtures, ignition system, smoke sampling and pretreatment system, gas analysis system, integrated control cabinet, and computer analysis system.

• The exhaust system consists of collection hood, guide duct, mixing duct, and test flue sections.
• Collection hood and exhaust ducts are made of SUS304 stainless steel.
• Collection hood steel plate thickness: not less than 2 mm.
• 1 MW conical stainless steel collection hood bottom opening size: 3000 mm x 3000 mm.
• 10 MW conical stainless steel collection hood bottom opening size: 8000 mm x 8000 mm.
• 1 MW exhaust duct diameter: not less than 400 mm.
• 10 MW exhaust duct diameter: not less than 2000 mm.
• 1 MW straight exhaust duct length: not less than 6000 mm, fitted with motorized air valve.
• 10 MW straight exhaust duct length: not less than 30000 mm, fitted with motorized air valve.
• Exhaust duct steel plate thickness: not less than 2 mm.
• The gas mixer contains double-layer baffles to improve gas mixing effect and withstands temperatures not less than 1100 °C.
• The flue test section includes flue gas sampler, gas temperature measurement device, airflow measurement device, and photoelectric smoke density test system.
• An air valve is installed at the exhaust outlet to prevent rainwater from entering the duct, and it opens or closes automatically according to test status.
• The lower edge of the collection hood is equipped with a motorized fabric curtain made of high-temperature fire-resistant cloth; size for 1 MW is 3 m x 3 m, and for 10 MW is 8 m x 8 m.
• An operating platform is provided at the sampling section of the flue for convenient installation, maintenance, and servicing.

• The system consists of fan, frequency inverter, airflow probe, differential pressure gauge, and thermocouples.
• Three-phase variable-frequency fans control airflow so that all smoke produced by combustion can be collected, with adjustable air volume during testing.
• For 1 MW system, three-phase variable-frequency fan controls airflow at 12000 m3/h with adjustable test airflow.
• For 10 MW system, three-phase variable-frequency fan controls airflow at 200000 to 250000 m3/h, sharing the flue gas treatment end fan.
• Taiwan Delta frequency inverter is used for accurate flue airflow control.
• Bidirectional airflow probe is used for airflow pressure measurement.
• Imported U.S. differential pressure transmitter, range 0 to 2000 Pa, accuracy ±1% FS, hysteresis ±0.1% FS, maximum linear pressure 69 kPa, and 90% response time within 1 s.
• Imported OMEGA thermocouples monitor flue gas temperature in real time with temperature accuracy of 0.1 °C and fine wire diameter below 0.25 mm.
• For 1 MW configuration, one thermocouple is used; for 10 MW configuration, nine thermocouples are used.
• Airflow signals are automatically calculated and fed back to achieve closed-loop automatic control with stable airflow and strong anti-interference capability.

• Includes sampler, filters, cold trap, suction pump, drying tube, and flow control.
• Sampler is made of stainless steel with sampling holes arranged opposite to the gas flow direction.
• Three-stage filtration system includes soot particle filter, intermediate filter, and fine filter with filtration accuracy up to 0.2 um to ensure long analyzer life.
• Cold trap uses compressor-based refrigeration, controlled at 0 to 5 °C, and keeps sample gas collection temperature at 4 ±1 °C for improved analysis accuracy.
• Suction pump flow rate: 33 L/min, vacuum degree 700 mmHg, pressure 2.5 bar.
• Drying tube removes moisture and impurities.
• Imported flow controller provides stable sample gas flow to the analyzers for more stable and accurate analysis.

• Light source: imported 0.5 W helium-neon laser from the USA.
• Imported U.S. photoelectric receiver with wavelength range 350 to 1100 nm, peak response 0.65 A/W, maximum output current 100 mA, gain adjustment 70 dB, linearity not less than 99.8%, instability less than 0.1%, and light receiving accuracy 0.1%.
• Equipped with one-touch five-level optical path auto-calibration system and imported Thorlabs standard optical filters for more accurate smoke density measurement.
• Calibration compares calculated values with theoretical filter values, with deviation controlled within 3%.
• Compensation photoelectric detection system effectively prevents interference caused by light source fluctuation.

• The system includes gas piping, check valve, solenoid valve, mass flow controller, burner, and ignition controller.
• Gas piping is made of stainless steel.
• Sampling check valves, explosion-proof solenoid valves, and burner controller with flame detection ensure gas use safety.
• Mass flow controller and sandbox burner are used to perform stepwise heat release calibration through gas flow control.
• Ignition and gas flow can be controlled manually, while in calibration mode the system automatically controls ignition time and gas flow.

• According to UL 9540A clause 9.2.12, a dedicated heat capacity testing approach is included.
• The system includes dedicated internationally recognized methods for temperature measurement point positions, number of temperature measurement points, and system calculation compensation methods to ensure correspondence with the oxygen consumption measurement method.

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