00:00Hello everyone. Welcome back to the Technova Channel Engineering Series.
00:05In today's video, we will understand one of the most commonly used industrial equipment,
00:10the shell and tube heat exchanger.
00:12We will explore all its parts, their functions, and how the heat exchanger actually works.
00:19Section 1. What is a shell and tube heat exchanger?
00:22A heat exchanger is a device that transfers heat between two fluids without allowing them to mix.
00:29In a shell and tube heat exchanger, one fluid flows inside the tubes,
00:34and the other fluid flows outside the tubes but inside the shell.
00:38Heat transfers through the metal walls of the tubes.
00:42Section 2. Major parts and their functions.
00:45One shell. This is the cylindrical outer body.
00:48The shell side fluid flows through this space.
00:51It also provides structural support to all internal components.
00:562. Tube bundle. The tube bundle is a group of many small tubes.
01:00The tube side fluid flows through these tubes.
01:04Most of the heat transfer occurs here.
01:063. Tube sheet. This is a thick circular plate.
01:10All tubes are fixed into the tube sheet.
01:12It separates the shell side and tube side fluids to prevent mixing.
01:164. Baffles. Baffles are metal plates installed inside the shell.
01:21They force the shell side fluid to flow across the tubes instead of flowing straight.
01:27This increases heat transfer and reduces tube vibration.
01:315. Baffle support rod. These rods hold the baffles in place and maintain alignment.
01:376. Channel slash head. This part directs the tube side fluid into and out of the tubes.
01:43It is usually located on the front of the heat exchanger.
01:477. Head cover. This is the removable cover attached to the channel.
01:52It allows inspection and maintenance of the tube side.
01:558. Gaskets. Gaskets create leak-proof seals between flanges to prevent leakage.
02:019. Bolts and nuts. These fasteners hold the channel and shell flanges together and ensure a tight, leak-free joint.
02:0910. Mounting supports. These supports keep the heat exchanger stable during operation.
02:1511. Lifting lugs. These are used to lift the equipment safely during installation or maintenance.
02:2112. Shell end body cover. This cover allows access to the tube bundle for maintenance or replacement.
02:28Section 3. How heat transfer happens. Let's understand the working.
02:331. Tube side fluid enters the channel. 2. It flows through the tubes.
02:393. Shell side fluid flows around the tubes inside the shell.
02:434. The two fluids do not mix.
02:465. Heat passes through the tube walls from the hot fluid to the cold fluid.
02:51This design is simple, efficient and suitable for high pressure and high temperature applications.
02:58Section 4. Industrial applications.
03:02Heavy check mark oil and gas refineries.
03:05Heavy check mark chemical plants.
03:07Heavy check mark power plants.
03:09Heavy check mark food processing industries.
03:11Heavy check mark marine applications.
03:14Thank you so much for watching.
03:16If you enjoyed this explanation, please like, share and subscribe.
03:20And don't forget to comment which engineering topic you want next.
