Phi-Tec adiabatic calorimeter

Figure 12-17. PHI-TEC adiabatic calorimeter. (Source Hazard Evaluation Laboratory Ltd.)...

Another development is the Phi-Tec adiabatic calorimeter (Figure 3.14). It is broadly similar to the VSP but the cell contents can be vented outside the equipment rather than into the containment vessel. 

The PHI-TEC II adiabatic calorimeter as shown in Figure 12-17 was developed by Hazard Evaluation Laboratory Ltd. (UK). The PHI-TEC can be used both as a high sensitivity adiabatic calorimeter and as multi-purpose vent sizing device [17,18]. The PHI-TEC employs the principles established by DIERS and includes advanced features compared to the VSP. It also provides important information for storage and handling and provides useful insight into the options suitable for downstream disposal of vented material. 

In this context, the term adiabatic refers to calorimetry conducted under conditions that minimize heat losses to the surrounding environment to better simulate conditions in the plant, where bulk quantities of stored or processed material tend to minimize cooling effects. This class of calorimetry includes the accelerating rate calorimeter (ARC), from Arthur D. Little, Inc., and PHI-TEC from Hazard Evaluation Laboratory Ltd. 

Adiabatic reaction calorimeter sample volume 7-11 ml. Phi-TEC II Different cells from 10 to 120 ml temperature range up to 500 °C pressure range up to 138 bat... 

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