a bomb calorimeter consists of a small cup to contain the sample, oxygen, a
stainless steel bomb, water, a stirrer, a thermometer, the dewar or insulating
container (to prevent heat flow from the calorimeter to the surroundings) and
ignition circuit connected to the bomb.
Bomb calorimeter in the food industry
A calorie is just a measurement of energy- the amount of energy
needed to raise 1 gram
of water 1 degree Celsius at standard atmospheric pressure. Calories in food
are actually measured in kilocalories, so 1000 actual calories for every 1
Manufacturers measure calories using a bomb calorimeter. This process involved
placing the food source in a sealed container filled with water, and burning
the food with electrical energy. After the food had completely burned up, a
measurement of the water temperature is done to see how many degrees it was
raised and thus how many calories were used.
The calorimeters can be used to determine the
calorific value of coal, coke, petroleum, cement black meal, solid biomass
fuels and other combustibles.
MRC's Conformance with Standards:
GB/T213-2008 Standard Test
Method for Calorific Value of Coal
ASTM D5865-2010 Test Method
for Calorific Value of Coal and Coke
ISO1928 Solid Mineral Fuels –
Determination of gross calorific value by the bomb calorimetric method and
calculation of net calorific value.