Radiant Panel Flame Spread Test Machine With ISO 5658 PC Control

Radiant Panel Flame Spread Test Machine with ISO 5658

Introduction:

IMO thermal radiation flame propagation tester is used for the combustion characteristics of building materials, high-speed train materials, and ship materials, and measures the flame spread speed, ignition heat, and total heat release according to distance and CEF (critical thermal radiation flux).

This test method is used to evaluate the combustion characteristics of vertically mounted test objects according to ISO 5658-2 and IMO Res.. 653. It also meets the GB/T 28752-2012 flame lateral spread test method on vertical surfaces. The test object is exposed to the appropriate heat dissipation area given by the heat plate gas combustion type, and then, when the combustion occurs, the signal value is measured in mV using a calibrated thermocouple. In addition, the ignition time is also recorded, and the flame burning time of the object under test is recorded according to the distance of the test object, and the flame spread speed is also recorded. Other test items include ignition heat (MJ/m2), continuous combustion heat (MJ/m2), critical thermal radiation flux (kW/m2), continuous combustion average heat, and total heat release (kW).

Test standards:

• ISO 5658-2-2006
• CSN EN 45545-2+A1:2015
• IMO FTPC Part 5,IMO Res.A.653(16)
• GB/T 28752:2012

EN ISO 5658-2 Flame Spread Test Machine -- test principle:

The sample method consists of two parts: exposing the sample to an area with a clearly calibrated radiation flux; measuring the ignition time, flame spread, and final extinction time.

The test sample is placed in a vertical position, adjacent to the radiation panel, and exposed to an area with a clearly calibrated radiation flux. The ignition flame approaches the test sample but does not touch the test sample, and the heated end of the sample is ignited by the evaporated gas on the surface.

After ignition, the development of the flame front is recorded, and the time it takes for the flame front to burn horizontally on the sample surface to reach each calibrated distance is recorded.

EN ISO 5658-2 Flame Spread Test Machine -- sample size requirements:

800mm*155mm*thickness

EN ISO 5658-2 Flame Spread Test Machine-- application:

Applicable to comparing the performance of materials with basically flat surfaces, such as single materials, composite materials and components used for exposed wall surfaces.

EN ISO 5658-2 test method composition:

1. The sample is exposed to an area with a clearly calibrated radiation flux.

2. Measure the ignition time, flame spread and final extinction time.

Main feature:

• 1. The test instrument consists of four main components: a set of radiation panel brackets and a set of sample brackets, which are connected together so that the test sample, radiation panel, sample rack, and ignition burner form the required structure.
• 2. The radiation panel provides a size of approximately 480 mm x 280mm radiation surface, and a wire mesh screen is provided in front of the radiation surface to increase the radiation degree.
• 3. A blower is used to provide the air source for the radiation plate, and a frequency converter is used for adjustment.
• 4. A propane mass flow controller is used to adjust the gas source, and a venturi mixer is used to mix it with air to provide the combustion gas source required by the radiation plate.
• 5. A multi-hole calibration plate and a sliding heat flux meter moving track are provided to detect whether the thermal radiation flux meets the standard requirements.
• 6. A water-cooled thermal radiation flux sensor is used to measure the thermal radiation flux curve of the radiation plate.
• 7. A portable water cooling circulation device can take away the heat from the surface of the heat flux meter.
• 8. A ceramic tube burner can directly act on the surface of the test sample with an open flame.
• 9. The rotor flowmeter is used for adjustment to provide a mixed combustion gas for the ceramic tube burner.
• 10. A mass flow controller can easily measure the heat of methane by measuring the critical heat flux.
• 11. According to the IMO test standard, a thermocouple device can be provided to measure related parameters such as the heat release rate.