Cooling towers are common on business properties as part of massive air conditioning programs. Cooling towers use evaporation to cool sizzling liquids generated by the system. Then the recovered liquids are re-circulated through the AC system. This is an effective solution to cool fluids for air conditioners and make an AC system more power efficient. Nevertheless, there are a number of methods water is misplaced via a cooling tower system:
Typical colosed circuit AC cooling tower
Efficient Use of Cooling Tower Water
Cooling towers are an essential a part of an environment friendly commercial AC system, but they use lots of water. Listed below are just a few ways to reduce your water use.
Meter your Cooling Tower Proactively determine system points by metering water consumption. Elevated consumption typically signifies system issues. Be aware: Metering can be needed if you would like to avoid wasting money by applying for an “evaporative credit score,supplied by many utilities. You might already have metering in place by way of your chemical provider. Ask your cooling tower chemical provider if they have already got meters, and if that’s the case, how you can obtain data from them.
Avoid Leaks and Over Fill Cooling towers refill with fresh water when a float valve signifies that the water level is low. When that valve breaks, the system refills consistently. Check your meters repeatedly (manually, or via distant water administration) to catch this shortly.
Find the appropriate Water Treatment Associate The proper companion will stability system operation with water efficiency through chemicals or growing cycles of concentration. Since many vendors are paid primarily based on the quantity of chemicals they promote, you should choose vendors primarily based on “cost to treat 1,000 gallons of make-up waterand “highest recommended system water cycle of concentration.Remedy applications should embrace routine checks of cooling system chemistry accompanied by common service stories that provide insight into the system’s efficiency.
Maximize the Cycles of Focus Different systems can tolerate completely different cycles of concentration. Work together with your cooling tower water professional (who gives chemicals to your cooling tower water) to see in case your system could tolerate greater cycles of concentration without clogging or damage. Sometimes the use of different chemicals, including acid therapies, can allow for larger cycles of concentration.
Consider Retrofits that Enable for Greater Cycles of Concentration Filtering your water, protecting it from sunlight and mud can all make your system extra efficient. The Workplace of Vitality Efficiency and Renewable Energy offers an excellent record of retrofit choices on their web site.
Use Recycled Water Some properties have good options to use condensate water or other relatively pure water sources apart from potable city water. Water quality and the minerals present in any water source must be considered before integrating with your system. The San Diego County Water Authority has put together a superb information on using recycled water in cooling towers.
Many water utilities provide cooling tower credit to reduce sewage prices. You shouldn’t pay sewage costs for evaporated water. Contact your local utility to get a credit for evaporated water. You’ll want meters on your make-up and blowdown traces to quantify the credit score.
Be aware: Some citiesrebate applications require your cooling tower to be inside a certain range of cycles of concentration to qualify for your evaporative loss credit score.
Optimizing your cooling tower pays real dividends. It additionally extends the life of your equipment. To attenuate your water prices:
Banyan Water gives remote monitoring options that enable you obtain your goals.
Glossary of Cooling Tower Terms, courtesy of the U.S. Division of Vitality
Blowdown Water discharged to take away high mineral content system water, impurities, and sediment.
Cycles of Focus That is an oversimplification, but think of this because the number of instances water might be added to the system before needing to take away water by means of the blowdown. Higher cycles of focus means a more environment friendly system.
Alternate, technical, and more correct definition: Technical time period used to explain the mass circulate relationship between the amount of system feed water and the amount of blowdown despatched down the drain. Additionally referred to as focus ratio, cycles of concentration correlates to the effective use of water in your system to provide heating or cooling wants. High cycles of concentration are instantly associated to low ranges of water loss from your system.