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Single Fluid Heat Transfer

Single Fluid Heat Transfer Systems Are Gaining Importance

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The important parameters of the fluid property, which play role in selecting the system are:

  • Specific heat and density of the liquid over the full temperature operating range
  • Vapour pressure at the high end of the temperature range
  • Viscosity and pump ability at the low end of the range
  • Mass balance between cold and hot loops
  • Reduction in total cost.

It is critical to manage heat transfer between the two interconnected systems. The rate of heat transfer from reactor to the fluid in the jacket of the reactor depends on flow rate of the heat transfer fluid, temperature difference between the fluid and reaction mass, and properties of the fluid.

This fluid then exchanges the heat with steam or other cooling fluids in the heat exchangers of the single fluid system. These heat exchanges should be sized considering the heat transfer rate for the reactors. Since the system is a closed loop system, expansion tanks are to be provided to take care of density variation of the heat transfer fluid at high and low temperature to ensure the system is always flooded but not over-pressurised.

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