Basic Principles and Calculations in Process Technology

Chapter 11. Transport Phenomena: Heat Transfer

11.1 Heat Conduction

11.2 Convection

11.3 Combined Conduction and Convection

11.4 Radiation

11.5 Dimensional Analysis

11.6 Shell Balances

11.7 Cocurrent versus Countercurrent Heat Transfer

11.8 Concluding Comments

References

Problems

Processes need heat or cooling for temperature control. Chemical reactions can be endothermic or exothermic, consuming or generating heat, respectively. The separation process of distillation requires heat to boil the “bottoms” and cooling to condense the overhead reflux. Sometimes, even mixing two different liquids can result in a change of temperature due to the heat of mixing and there are times that the temperature of a material may be raised or lowered to facilitate ...