Environmental Considerations of Chillers For District Cooling Plants

1. Environmental Considerations of Chillers For District Cooling Plants

2. District cooling plants are becoming a more popular choice for providing cost-effective & efficient cooling. Many of these energy efficient cooling systems prefer to use water-cooled chillers in regions where there is a nearby source. As the name implies, water-cooled chillers utilise water to remove heat from process water and transfer it out of the plant via heat exchangers.

3. Environmental Considerations of Chillers for District Cooling Different chillers operate in varying ways and have a different impact on the environment. Being an energy efficient cooling system, the availability of water, refrigerants, and energy consumption are all aspects to consider while choosing a chiller for district cooling.

4. Water Use • Water and water conservation are important factors to consider while choosing a chiller. • During the selection process, the accessibility of natural cooling water to the District Cooling plant and local water conservation policies are essential factors to consider. • When water conservation standards are too tight for a water-cooled chiller, an air-cooled chiller with no water requirement may be preferred.

5. Refrigerants • To provide chilling, some chillers may require commercial refrigerants. • Chemicals in these refrigerants may cause global warming. • These molecules absorb infrared light and deposit it in the atmosphere, causing a gradual but steady rise in temperature. • When choosing a chiller it is important to carefully consider refrigerant use and consequences.

6. Power Consumption • We frequently think of power usage based on life cycle costs, but when choosing a chiller, environmental factors must also be considered. • A chiller that consumes more energy results in more carbon emissions from the power plant. • For an analogous comparison, the chiller and its ancillary equipment, such as pumps, must be included in the power consumption and carbon emissions assessment.

7. Benefits of Water-Cooled Chillers • Water-cooled chillers do not require huge amounts of chemical refrigerants, which are commonly used in air-cooled chillers and are harmful to the environment. • For water-cooled chillers, either freshwater or seawater can be employed. • These chillers are expected to have a lifespan of 10 to 20 years. • District cooling systems with water-cooled chillers are known to be eco-friendly cooling system.

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