Whether you’re considering renting or buying a Chiller, you need to consider a number of factors before you take the first step and make sure you get the right level of cooling the first time around. In this article, we will answer the 4 most common questions regarding renting or buying refrigeration units.
What is the difference between HVAC and Chiller?
HVAC stands for heating, ventilation, and air conditioning. It is a comprehensive set of technologies and solutions to provide the optimum heating, ventilation, and cooling required for residents, businesses, and organizations. Chillers are a subset of HVAC; more precisely, Chiller is one of the technologies that belong to the AC section of HVAC.
When you hear the term ‘AC’, the first thing that comes to mind is a shared window and air conditioner, commonly used to cool a room. In a way, refrigerators are similar to these devices, as both solutions are designed to cool a specific area. However, there are some key differences in the purpose, size, and capacity of Chiller hire compared to their standard household appliances.
Chillers are commonly used for large-scale applications and industrial facilities, such as hospitals, refineries, and power plants, where a constant level of cooling over a large area is required. . Depending on their purpose, they are much larger than conventional air conditioners and can provide over 1000 tons of cooling power, depending on the configuration. Home air conditioners are typically limited to cooling below 16°C, but refrigerators are designed to cool an area below 16°C as needed. Simply put, a refrigerator is one of many HVAC technologies specifically designed for large-scale applications and industrial facilities.
What are the different types of Chillers?
There are 2 main types of refrigerators that you need to know about: air-cooled refrigerators and water-cooled Chillers.
Both Chillers have the same cooling method and mechanism, including the use of compressed steam. The main difference is that water-cooled Chillers use a cooling tower to dissipate unwanted heat, while air-cooled Chillers use fans to dissipate heat.
Air-cooled Chiller
Air-cooled Chillers use air to remove unwanted heat by blowing heat moving along open condenser tubes.
Air-cooled Chillers are the best choice if the area to be cooled has limited space or does not have a constant source of clean water. These refrigerators have lower cooling efficiency than water-cooled Chillers but are quick, easy to install, and cheaper than water-cooled Chiller hire.
It is a type of system that delivers the wind to the heat exchanger and cools the refrigerant by air. The refrigerator has a built-in fan motor and is easy to install, but because waste heat is generated in the room, an exhaust device may be needed in tight spaces. The gas compressed by the freezer (compressor) is cooled and liquefied by the condenser (radiator). It consists of cooling air circulation and a water cycle, and the cooling gas is used as a thermal medium to cool the circulating water.
When the liquefied gas passes through the expansion valve, the pressure decreases and becomes the cooling gas, and the water cooler (heat exchanger) exchanges heat with the circulating water to cool the circulating water. Since there is no icing or clogging, maintaining aquarium cleanliness is easy. Even in the case of an air-cooled cooler, the heat evaporated by rainwater evaporation will lower the radiator’s temperature when the rainwater comes into contact with the cooling tower during rain and due to the drop in temperature. Due to the evaporation of rainwater around the air cooler, the cooling effect can be maintained. The cooling effect is improved even at high humidity.
Water-cooled Chiller
Water-cooled refrigerators use water to remove unwanted heat by forcing water through condenser tubes and dissipating heat through a cooling tower.
Because water-cooled Chillers use a cooling tower, this type of Chiller provides a higher efficiency rating than an air-cooled analog. However, these units require additional components such as an additional condenser and water pump on top of the existing cooling tower, which increases the total cost of these coolers.
