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Feature | December 2016

Demand in the sector is dependent on Govt & Private Projects

Prabhakar R Acharya | General Manager, National Cooling Towers

What are the cooling tower segments you are present in?
We manufacture three different types of cooling towers, namely, FRP induced draft counter flow/pultruded FRP induced draft counter flow cooling towers, timber induce draft/cross flow cooling towers, and RCC induced draft/cross flow cooling towers. We also manufacture three different types of chilling plants, namely water cooled chilling plants, air cooled chilling plants and brine cooled chilling plants. Our products dominate in the plastic processing industries, refineries/petrochemical industries, sugar industries, fertilisers and chemical industries, food process industries, HVAC, pharmacy, and power project segments.

What are the advantages of your products?
Our cooling towers are designed as per CTI norms. Thus, the body of the tower will be light weight and compact, it will also have a long life and require zero maintenance. For our chilling plants, they utilise less power and comply with European standards, which significantly increases the life of the compressors and refrigeration items.

How has the segment grown over the last two years and what are the future prospects?
For the last two years, the cooling towers segment has seen 15 per cent growth, while the chilling plant segment has seen a 10 per cent growth. Over the next two years, we feel that the market for cooling towers will see around 25 per cent growth and that for chilling plant will witness 20 per cent growth.

What are the other challenges which affect this industry┬┤s growth?
The demand and supply for cooling towers is dependent and determined by government and private sector projects. However, as cooling towers and chilling plants are a neccessity for all major industries - be it the process industry or the power sector, there is steady business.

How is the segment placed in terms of technology?
Our cooling towers are manufactured as per CTI norms and as such take care of quality maintenance.

Explain the technology involved in converting once-through systems into cooling towers?
As per the new regulations, water flow for thermal power projects are required to be around 2,500 m3/hour, the hot water temperature around 320C and wet bulb temperature around 280C.

These parameters can be achieved by converting once-through systems into cooling towers.

What are the three techniques you use during O&M for cooling towers to improve efficiency?
Firstly, we have a direct driven fan motor which requires zero maintenance. For contaminated water we use bigger size 2.5-┬┤ diameter and ABS nozzle for non clogging, which again makes it maintenance free. Thirdly, for fills we use soft water 12 mm flute diameter and contamination water PVC v bars or timber patti type fills.

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