A heat exchanger is used to heat flammable, volatile solvents, as shown in Figure 11-15. The temperature of the outlet stream is measured by a thermocouple, and a controller valve manipulates the amount of steam to the heat exchanger to achieve the desired set point temperature.
a. Identify the study nodes of the process. b. Perform a HAZOP study on the intention “hot solvent from heat exchanger.” Recommend possible modifications to improve the safety of the process.
FIGURE 11-15
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