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AB & CO - Thermal Oil Heating Systems
AB&CO thermal fluid heating systems are high temperature process heating systems, that uses a special thermal oil, a so-called Heat Transfer Fluid (HTF), as the circulating heat carrier.
These types of heating systems are used for high performance industrial processes - most often as an alternative to high pressure saturated steam.
For instance spray-drying systems often requires very high temperature to achieve maximum performance.
They become an attractive alternative to the steam - mainly due to much higher operating temperatures on the media (HTF), that maintain low system pressure (often atmospheric pressure).
In the temperature diagram below you can see the differences in this - between water/steam (vapour) and different kind of heat transfer fluids. As it appears here, the steam at high temperatures REQUIRES PRESSURIZED SYSTEMS, whereas thermal oil (HTF) can be operated atmospheric up to above 300°C. When pressurised, the HTF can be operated even up to 400°C.
There are numerous other advantages, including significant less overall operation costs. But also disadvantages, See more at "COMPARE STEAM AND THERMAL FLUID".
Despite the simplicity understanding the thermal oil heating system, it requires experts with high skills to get all things right. Unforetunately a lot of unsafe and poor designed system are seen, and thus sldo severe and fatal situation. Hot oil burns when it is not controlled 100%.