temperature sensors for temperatures of -150 °C (-238 °F) and below
Cryogenics refer to temperatures of -150°C (-238°F) and under and is used to store some gases in liquid form. When in liquid form, the volume is compressed drastically. For instance, liquid natural gas (LNG) is 600 times more compact in liquid form compared to its gaseous state, while liquid hydrogen is 851 times more compact in liquid form, which makes it possible to store or transport much larger quantities. But cryogenic storage and transportation can be a dangerous affair, and temperature control is vital to ensure safe operations.
When dealing with liquified gas under cryogenic temperatures, sensors are an absolute must. Although sensors are a small part of the full gas storage installation, they are vital to ensure safe operations. Without them, the risk of slow reaction to undesirable temperature rise, and serious accidents as result, increases.
Inside the gas storage tank, sensors are used to monitor the temperature, while sensors placed in the tank’s insulation is used to detect leakage.
The interior temperature sensors are important to monitor stratification of the gases. Even in its liquid form, there will be a boil-off of lighter fractions, making the substance divide into layers with a risk of rollover. Rollover happens if the liquid surface density surpasses the density of the layers beneath, causing inversion of the tank substances. The sudden mixing of layers gives risk of volume expansion due to emission of heat and could potentially cause an explosion, linking temperature sensors directly to safety.
For further information contact Max Jensen, Global Sales Director, on +45 6389 2223 or maj@senmatic.com.
For further information contact Max Jensen, Global Sales Director, 0n+45 6389 2223 or maj@senmatic.com.
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