Heat Release Tester

Heat Release Tester

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                        The test method is based on the observation that, generally, the net heat of combustion is proportional to the amount of oxygen required for combustion. The relationship is that approximately 13,1 × 103 kJ of heat are released per kilogram of oxygen consumed. Specimens in the test are burned under ambient air conditions, while being subjected to a predetermined external irradiance within the range of 0 kWm−2 to 75 kW m−2 and measurements are made of oxygen concentrations and exhaust gas flow rates.

 The apparatus is made of following parts,


Cone-shaped radiant electrical heater

Radiation shield

Irradiance control

Weighing device

Specimen holder

Retainer frame

Exhaust gas system with flow measuring instrumentation

Gas sampling apparatus

Ignition circuit

Ignition timer

Oxygen analyser

Heat flux meters

Calibration burner

Data collection and analysis system

side screens

Smoke system thermocouple


Technical Data:

Cone-shaped radiant electrical heater: 5 000 W at 230 VAC

Irradiance control: PID type upto 10000C

Weighing device: 1000 gm X 0.1 gm least count

Ignition circuit :spark plug powered from a 10 kV transformer

Oxygen analyser: paramagnetic type, with a range of at least 0 % oxygen to 25 % oxygen

Heat flux meters:upto (100 ± 10) kW m−2

Calibration burner: square orifice with an area of (500 ± 100) mm2

Data collection and analysis system: NI software


RELATED Standard

BS ISO 5660-1:2015

ISO 5660-1:2015(E)