Digital Bomb Calorimeter is a high-precision device used to measure the heat of combustion of a substance. It operates by igniting a sample in a sealed, oxygen-filled chamber (the “bomb”) and digitally recording the temperature change in the surrounding water. This data is then used to calculate the energy content of the material, making it essential for fuel analysis, research, and educational purposes.
bomb calorimeter measures the heat of combustion (calorific value) of a substance, usually solid or liquid fuel, in a controlled environment.
🔧 Specifications:| Parameter | Specification |
| Temperature Resolution | 0.1°C |
| Temperature Accuracy | ±0.1°C |
| Temperature Detector | RTD (Resistance Temperature Detector) |
| Temperature Range | Room Temperature (RT) to 99.9°C |
| Display | 3 Digit LED |
| Calculation Method | Manual |
| Power Supply | 230V ± 10%, 50Hz |
| Water Equivalent (of Calorimeter) | Measured during calibration (manual method) |
| Sample Weight | Usually between 0.5–1.0 g (measured on a precision balance) |
| Accessories Included | Typically includes: bomb vessel, crucible, ignition wires, oxygen filling apparatus, thermometer or temperature sensor, water jacket, stirrer, and connecting cables |
Weigh the Sample: A known weight (e.g., 0.8g) of the fuel sample is placed in the crucible.
Assemble the Bomb: The sample is placed in the bomb vessel, oxygen is added (~30 atm), and the bomb is sealed.
Immerse in Water Jacket: The bomb is placed inside the calorimeter, which is filled with a known mass of water.
Ignite the Sample: An ignition current passes through the fuse wire, combusting the fuel.
Record Temperature Rise: The RTD sensor detects the temperature rise in the water due to combustion.
📦 Standard Accessories (Typically Included):Bomb vessel
Ignition wire (nickel-chromium or similar)
Crucible (nickel or stainless steel)
Oxygen filling kit
RTD temperature sensor
Water container/stirrer unit
3-digit LED temperature display unit
Power cable, fuse, and manuals
⚠️ Important Notes:Ensure calibration with benzoic acid or a standard reference material for accuracy.
Always follow safety precautions when handling pressurized oxygen and ignition.
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