Calorimetry the method of determining the heat value of mixed fuels. To electrical contact The temperature rise in the water is measured with a thermometer and recorded as a function of time By means of a spark from the wires, the material in the steel ball combusts and heats the bomb, which in turn heats the water Stirrer All of the energy liberated during the combustion is used to heat the water and the stainless steel bomb The heat energy is calculated as the temperature increase of the water times the mass of the water plus the bomb is placed into the bomb the two halves are screwed shut -Bomb UNEP Calorimetry the method of determining the heat value of mixed fuels. A sample of known weight is placed into the bomb the two halves are screwed shut By means of a spark from the wires, the material in the steel ball combusts and heats the bomb, which in turn heats the water Oxygen under high pressure the bomb is placed in an adiabatic is then injected into the bomb water bath with wires leading from the bomb to a source of electrical current The temperature rise in the water is measured with a thermometer and recorded as a function of time All of the energy liberated during the combustion is used to heat the water and the stainless steel bomb. The heat energy is calculated as the temperature increase of the water times the mass of the water plus the bomb