Combustion Bomb CC01/01

Combustion Bomb

The Combustion Bomb is the heart of the Bomb Calorimeter. It is the sealed chamber in which the sample is burnt in oxygen to find its calorific value. It is precision-machined on CNC machines from SS 316 grade stainless steel and has three parts: the Combustion Body, the Combustion Ring and the Combustion Lid.

Combustion Body: Machined entirely from a solid SS 316 rod, with a capacity of approximately 300 ml. Its curved bottom reduces pressure at the edges of the chamber. A groove on the body holds a neoprene O-ring gasket, which is durable and long-lasting.

Combustion Ring: The lid sits on the body, and the two are tightened together with an SS 316 combustion ring. Knurling on both the ring and the body gives a firm grip when opening and closing.

Combustion Lid: On top, the lid carries:

• Two brass terminals that carry the 24 V DC ignition supply, one of them insulated with Teflon bushes and a copper washer

• A brass valve body through which oxygen is filled and released

• An SS lifting hook for lifting the bomb out at the end of the test

On the underside, two SS 316 electrodes are fixed to SS 316 taper bushes. One bush also forms the gas passage into and out of the chamber. The other is insulated with mica sheet, and its electrode holds the SS 316 crucible stand on which the crucible sits. Both electrodes have SS 316 sleeves that lock the nichrome ignition wire in place.

Lid stand shown in the photos for display only; sold separately.