Bomb Calorimeter
Introduction:
The oxygen bomb calorimeter can be used to measure the calorific value of solid or liquid samples. It measures the heat generated by the combustion of the sample in a closed container (oxygen bomb) in an environment full of oxygen. The measured results are called combustion value and calorific value. , BTU, etc.
Calorific value results have the significance of determining other values, can determine the quality of the sample, as a basis for calculating prices (such as coal), and can also obtain physiological (such as energy distribution in ecology, energy metabolism in animal nutrition research, etc.), physical and chemical conclusions.
working principle:1g of solid or liquid sample is weighed and put into a crucible, and the crucible is placed in a stainless steel container (oxygen bomb). Fill the combustion vessel/oxygen bomb with oxygen at a pressure of 30 bar (grade 3.5: theoretical purity 99.95%). The sample is ignited by the ignition wire and cotton wire in the oxygen bomb. During the combustion process, the central temperature of the crucible can reach 1200°C, and the pressure in the oxygen bomb increases at the same time. Under these conditions, all organic matter burns and oxidizes. Hydrogen produces water, carbon produces carbon dioxide, sulfur in the sample will be oxidized into SO2, SO3, and dissolved in water, releasing a certain amount of heat (heat of sulfuric acid generation), nitrogen in the air will have a small amount of nitrogen under the condition of high pressure and oxygen enrichment It is oxidized to produce NO2, and dissolves in water to release a certain amount of heat (heat generated by nitric acid). Fill the container (inner barrel IV) with water so that the water surrounds the oxygen bomb, and the heat generated during combustion will be transferred to the water around the oxygen bomb.
Standard:
• ISO 1716-2002
•GB/T 14402-2007
•GB/T8624-2012
Features:
1. The equipment mainly includes: calorimeter device, high pressure oxygen bomb, cold water device, microcomputer measurement and control system (which can record and display curves), LCD screen and software; the crucible is made of stainless steel;
2. The box body is painted; all internal parts are made of stainless steel, which is corrosion-resistant and easy to clean;
3. Automatic detection of broken ignition wire, automatic ignition;
4. The flame is automatically turned off during the test; the sound alarm prompts when the test is abnormal;
6. The control box is equipped with a USB/RS232 serial port, equipped with an external brand desktop computer or notebook operation control; the degree of automation is high, the test process is safe and reliable, and the operation is convenient;
Specification:
| Capacity of calorimetric bomb |
300±50 ml |
| Oxygen bomb pressure range |
0.5~3.5MPa, no air leakage. The pressure resistance of the calorimetric bomb is 21Mpa; |
| Crucible |
Φ25mm, height (14-19) mm, wall thickness 1mm; |
| Timer |
the accuracy is 0.5s |
| The maximum power used |
0.5KW |
| Ambient temperature |
(10~35)ºC, humidity≤80% |
| Instrument heat capacity |
about 10000J/K |
| Heat capacity repeatability error |
≤0.2% |
| Temperature measurement range |
(4.5-50) ºC |
| Temperature difference detection |
0.0001°C resolution, using PT100 sensor |
| Inner cylinder volume |
2000ml; Oxygen bomb tightness: Oxygenation pressure 2.5~3.5MPa, no air leakage |
| Stirring power |
3W; stirring speed: inner cylinder (375r/min) |
| Power supply voltage |
AC220V±10% 50Hz |
Automatic Oxygen Bomb Calorimeter
Bomb Calorimeter
ISO1716 Bomb Calorimeter
Audited Supplier 
){kind=link}