What is Cooling Tower System?
Cooling tower system is widely used in commercial sector, like hotels, corporate building, shopping malls etc, as part of the HVAC (heating, ventilation air conditioning) system. It supports water-cooled chiller to generate chilled water to supply to the centralised air-conditioning unit producing cool air for the spaces. Cooling water is used as the cooling media to cool down the refrigerant in the chiller condenser.
On the other hand, cooling tower systems also play an important role in industrial utility. Cooling water and chilled water are commonly used in industry as cooling medium in their process depending on process design and requirement.
As the cooling tower system is often the heart to HVAC system and utility system, it is essential to carry out preventive maintenance and servicing to take care the condition of the system to have longer service time and minimise unexpected breakdowns, although it is often overlooked or neglected.
Cooling Tower Water Treatment
Cooling tower water treatment is essential as part of the preventive maintenance, ensuring the water flowing in the system is as close to ‘neutral’ nature as possible is very important; neither too corrosive (low pH, high chlorine content, low alkalinity) or more prone to scale forming (high pH, high TDS and high alkalinity). Cooling water being corrosive will result in damaging the structure of the cooling tower systems, causing leakages across the system etc. Whereas, on the other hand, when the water is more prone to scale forming, it is like to affect the heat transfer efficiency and the operation of related equipment like water-cooled chiller/ heat exchanger if there is a layer of scale formed in the tubes.
Therefore, a good and well managed cooling water treatment programme is necessary. With our years of involvement and own formulated cooling tower water treatment chemicals, we are capable to assist to customised cooling water treatment based on each and own cooling tower system condition.
We help to calculate the dosage quantity and frequency (typically twice a month, or bi-weekly) based on the cooling tower system operating condition. And with taking on-site water pH and TDS reading during bi-monthly visiting, and monthly cooling water analysis, we analyse the effectiveness of the chilled water treatment programme and hence carry out adjustment on the dosage accordingly, if necessary.
Of course, we also offer the option of supplying the cooling water treatment chemicals (corrosion inhibitor, biocide, pH stabiliser) only, where the dosing is done by in-house technicians. We will provide training and suggest recommended dosage rate, followed by complimentary monthly water analysis.