Author(s)

Élcio Nogueira

Department of Mechanics and Energy (DEM), State University of Rio de Janeiro (UERJ), Resende, Brazil.

The case study is about obtaining the flow rate and saturation temperature of steam that makes it possible to heat a solution of water and ammonia nitrate (ANSOL) in a shell and helical coil tube heat exchanger, within a time interval, without that the crystallization of the ANSOL solution occurs. The desired production per batch of the solution is 5750 kg in 80 minutes. The analysis uses the concepts of efficiency and effectiveness to determine the heat transfer rate and temperature profiles that satisfy the imposed condition within a certain degree of safety and with the lowest possible cost in steam generation. Intermediate quantities necessary to reach the objective are the Reynolds number, Nusselt number, and global heat transfer coefficient for the shell and helical coil tube heat exchanger. Initially, the water is heated for a specified period and, subsequently, the ammonium nitrate is added to a given flow in a fixed mass flow rate.

Thermal Efficiency, Thermal Effectiveness, Shell and Helical Coil Tube, Heat Exchanger, Ammonium Nitrate

Nogueira, É. (2021) Efficiency and Effectiveness Thermal Analysis of the Shell and Helical Coil Tube Heat Exchanger Used in an Aqueous Solution of Ammonium Nitrate Solubility (ANSOL) with 20% H₂O and 80% AN. Journal of Materials Science and Chemical Engineering, 9, 24-45. doi: 10.4236/msce.2021.96003.