2 Main Types Of Heat Exchanger Use On board Ship
Generally, heat exchanger are defined according to it construction and/or it purpose. They are as follows; fluid heat exchanger, plate fin heat exchanger, plate and tube heat exchanger, plate heat exchanger, plate and shell exchanger, shell and tube heat exchanger,phase change, pillow plate,adiabatic wheel, etc.
Following these types of heat exchangers, there are mainly two types being use on board ship. They are ;
1. Plate type heat exchanger
This type of heat exchanger are designed with multiple parallel sets of plates which are being compressed to form the cooler unit, allowing fluid to pass between lines on the plate to the outlet holes. Further more, the exchanger gasket are been place on both side ends of the plate, which separates both substance from mixing up.
Use of Plate type heat exchanger
Plate type heat exchanger are mostly use for lube oil and engine jacket water cooling. From my experience, the plate type seems to be the best exhanger in the terms of cooling effect and/or easy maintenance. In the terms of cleaning, it seems difficult and takes time.
2. Shell and tube heat exchanger
Shell and tube heat exchanger are designed with bundle of tubes, which are placed inside the shell. This type of heat exchanger are being use on board the ship mainly on steam condenser, jacket water cooling, as well as lube oil cool.
On board ships built 1994-2000 year back, many of them uses the shell and tube heat exchanger. while that of 2000 years up wards are mainly installed the plate type.
Relating both exchanger, to my own opinion and statistics, the plate type heat exchanger is more effective and durability. But it durability and effectiveness depends on how its been managed.
The shell and tube heat exchanger has it advantages too, which includes ; easy to clean tubes, difficult to mix up except if the tubes leaks. While plate type can mix up easily if the gaskets are not place very well.
To bring to conclusion, as a seafarer, you man encounter any of the above exchangers while on board ship. The best way to manage them and have good cooling effects is to maintain proper cleaning of the coolers, check and allow recommended temperature , check, change the gaskets as required. With all these, you can have the exchangers save you better.
I hope this article helps and/or gives you more insight regarding this equipment. Share to reach your friends, who may need this article, also subscribe below for our weekly post.