Refrigeration systems are devices that transfer heat from a lower temperature region to a higher temperature region, using a working fluid called refrigerant. The refrigerant undergoes phase changes from liquid to vapor and back to liquid as it circulates through the system, absorbing and releasing heat. One of the most common refrigerants used in refrigeration…
Refrigeration systems play a vital role in various industries, from food preservation to air conditioning. Among the key components within these systems are thermostatic valves. A thermostatic expansion valve (TXV) is a device that regulates the amount of refrigerant that enters the evaporator in a refrigeration or air conditioning system. It is designed to maintain…
Author: Daniel G. Teleoaca – Marine Chief Engineer Marine compressed air dryers are vital components used aboard ships and offshore platforms to remove moisture and contaminants from compressed air systems. These devices play a crucial role in ensuring the efficient operation of various pneumatic equipment and systems on board. In this article, we will delve…
Lately, I keep receiving on every social media group that I own and manage, different questions about ship’s refrigeration and air conditioning. The systems themselves are not very complicated, not difficult to understand, but still found a lot of engineers being “scared” when it comes to work on these systems. In most cases I found…
Every ship has a provision cooling plant, which can range from a refrigeration-cooling combination to 3 to 4 cold storage rooms depending on the ship size and type. Cold storage rooms on passenger ships can include up to 30 – 50 rooms, including dedicated storage rooms for wine, flowers, cigars, and so on.The purpose of…
Effective air-conditioning and ventilation systems on ships ensure passenger comfort and crew well-being. They must control temperature and humidity while preventing moisture accumulation to avoid health risks. The systems utilize air handling units (AHUs), refrigerants, and heat exchangers, requiring regular maintenance to operate efficiently and safely.