- 3E Plus Software : https://insulationinstitute.org/tools-resources/free-3e-plus/
- HTRI Tutorial : Solving a Design problem for Shell and Tube Heat Exchanger in HTRI Software
- Experimental Investigation of a Double Pipe Heat Exchanger
Course Plan:
Class One Introduction Class Two Shell and Tube Heat Exchanger Class Three Problem Solving and HTRI Software Class Four Double Pipe Heat Exchanger Lab Visit (DPHX) Class Five Economic Consideration Class Six Insulation and 3E Plus Software Class Seven Mechanical Design Class Eight Cooling Tower Class Nine Presentation and Report Writing - Group Project
How to select right fluid for shell and tube side: High Pressure Tube side. Small Tube has a high Pressure Ratings Fouling Tube side. generally, Cleaning easier in straight tubes Corrosive materials Tube side . Only Tube-sheets, tubes needs expensive corrosive resistant alloys Low Pressure Drop Shell Side. Vapour Flow Shell Side. Vapour generally has higher volume and lower heat transfer coefficient. Condensing Flow Shell Side. Viscous Flow Complex to decide, preferably shell side . In tubes high pressure drops and low heat transfer.
Hairpin Heat Exchanger : A hairpin heat exchanger is a single-pass shell-and-tube unit that has been folded in half to give it a hairpin appearance. Advantages : It allows removable tube bundle, accommodate thermal expansion without requiring expansion or packed joints, high pressure closures for pressures up to 10,000 psi, because of U-tube construction expensive joints are not required.
Frictional Pressure Drop : Pressure Drop is the difference of total pressure between two points in pipe network. For the fluids circulating in the tube side of a heat exchanger pressure drop consists of – (i) The pressure drop along the tubes (ii) The pressure drop owing to the change in direction in the exchanger heads ( in the multipass heat exchanger). High flow velocities can create higher pressure drops across a pipe system.
Shell Side Pressure Drop = pressure drop in the cross flow section +pressure drop in an end cross flow section +pressure drop in a window section+pressure drop in both inlet and outlet heat exchanger nozzles . Note that, Pressure drop in shell side becomes complex due to Leakage stream which can modify the main stream of shell side.
References & Resources :
- Design and Optimization of Thermal Systems By Yogesh Jaluria
- Edward S. Gaddis, Volker Gnielinski ; Pressure drop on the shell side of shell-and-tube heat exchangers with segmental baffles
- Brogan, R.J.; SHELL AND TUBE HEAT EXCHANGERS ;DOI: 10.1615/AtoZ.s.shell_and-tube_heat_exchangers
- Why to Consider Using a Hairpin Heat Exchanger
- How to select right fluid for shell and tube side
- UMAKANTA B, C.N NATARAJ, STUDY ON INDUCED DRAFT COOLING TOWER PERFORMANCE ANALYSIS IN CAPTIVE POWER PLANT