Cooling Groups

Chiller (coolant circulation device) is a general term for a device that controls temperature by circulating a liquid or air, such as water or heat medium, as a coolant whose temperature is set by the refrigerant cycle. In addition to maintaining the temperature of various industrial and laboratory devices, equipment and apparatus at a constant level, it is also used for air conditioning in buildings and factories. It is often called a “cooler” because it is used for cooling.

 

Chiller Group Consists of Four Basic Components:

• vaporizer
• Compressor
• Condenser
• One expansion unit

How Does a Chiller Work?

The process begins with a low-pressure refrigerant entering the evaporator. Inside the evaporator, the refrigerant is heated, thus undergoing a phase change to a gas. The gas refrigerant pressure increases, the compressor is activated. The high-pressure coolant goes to the condenser, which uses cooling water from a cooling tower or air from the environment to reject the heat and condense it into a high-pressure liquid.

 

The condensed refrigerant then goes to the expansion unit, which has a valve that acts as a metering device to limit the flow of refrigerant into the system. As a result, this reduces the refrigerant pressure and restarts the cooling process. The entire process is known as the cooling cycle.

 

Coolers are not all the same; They differ in terms of the features they have and the processes they offer. Therefore, it is crucial to carefully choose the right chiller for your application as it will help you save costs, reduce downtime and increase operational efficiency.

 

 

 

Differences Between Cooler and Freezer in Chiller

The role of a cooler is primarily cooling, but a freezer also serves a similar function. The differences between a cooler and a freezer are extremely subtle and some parts can be difficult to understand. However, strictly speaking, these are different devices, as you can tell from the different names. So, what are the differences between a cooler and a freezer?

 

Principles of a Refrigerator and Freezer

You can think of the principles of a cooler and freezer as almost the same. Since both are used to cool their intended objects, they both have cooling capacities. The basic principle of a cooler and freezer is to cool the intended object and lower the temperature, so there is little difference in this aspect. It’s hard to tell the differences between a cooler and a freezer, and it’s easy to get confused because the principles are nearly the same.

 

However, even if the principles are almost the same, several differences can be observed in the cooling mechanisms. In other words, if you can understand the mechanisms, you can begin to see the differences between a cooler and a freezer. Let’s take a detailed look at the mechanisms.

 

Key Differences;

First, let’s take a look at the mechanism of a cooler. The way a cooler works is that a liquid called a coolant circulating inside the cooler cools the intended object. Various liquids, including water, are used to produce the coolant, but in all cases, this coolant removes heat from the object and cools it. Coolant rotates inside the coolant, and removing heat from an object also means the temperature of the coolant rises.

 

The temperature of the coolant is reduced using water or air taken from outside, and the cooled coolant is reused to cool the intended object. By doing this, it ensures continuous cooling of the intended object. On the other hand, cooling with a freezer is achieved by creating cooled air by exchanging heat between the refrigerator and the air. Chilled air is created by the refrigerant without the use of any liquid such as circulating fluid. In this way, although both are devices used for cooling, the mechanisms are different. Both the refrigerator and the freezer use a compressor. Gas can be compressed and spread by the compressor.

 

In terms of their differences, in the case of a chiller, generally, all the equipment except the condenser is included in a single package, including the compressor. This is a unique feature of a cooler. In the case of the freezer, each appliance is not packaged in a single package and is discrete. Although subtle, these differences are used to distinguish between a cooler and a freezer.