The modern air cooled chiller is a special tool used to heat or cool a heat transfer fluid. Water or antifreeze (propylene or ethylene glycol) is used as a heat carrier. Depending on the principle of operation and heat dissipation, the chillers can be divided into air-cooled and water-cooled models. Air-cooled units are most often used.
In modern systems, air chillers act as heat carriers. The heat from the refrigerant is taken over by the evaporator, and the air condenser is responsible for dumping this heat outside. The simplest way to transfer heat to the outside is to transfer it to the outside air. This is exactly what the condenser in air chillers does.
The modern air-cooled condenser is presented in the form of a tubular-finned heat exchanger. The principle of operation is that the working substance flows through the pipes of the refrigeration circuit. Freon is often referred to as this substance.
Tubes and lamellas are blown with air from the outside. During the blowing process, the hot refrigerant pipes are cooled. It is also necessary to achieve high efficiency of the chiller itself to quickly cool the refrigerant. There are several ways to achieve this goal.
- First, special fins are placed on the tubes for cooling. For this, copper tubes are most often used in combination with aluminum fins.
- Fins thickness and frequency should be designed for system efficiency and maximum heat dissipation. This will allow you to achieve the most efficient operation of the entire system.
- Secondly, it is important to correctly design the features of the heat exchangers.
The wide force range makes it conceivable to utilize the chiller for cooling in rooms of different sizes: from private houses to workplaces and hypermarkets. Also, it is utilized in the food business for cooling water and drinks. In the medicine business – for cooling meds.