In today’s world of sustainable development, energy saving is an essential criteria for any power generating sector. Since the beginning of the century, every industrial sectors are taking measures to adopt energy efficient technology in order to meet the stringent standards of regulatory bodies.

The Induced draft cooling tower heat transfer effectiveness is highly affected by the overall CT fan efficiencies. The auxiliary power used by cooling tower fans forms between 2.21 – 3.06% of total auxiliary power (0.23 – 0.38% of plant load). Earlier Cooling tower fan blades are manufactured with different materials like aluminium, wood and Glass Reinforced Plastic (GRP). With the advancement in composite material technology, the current generation cooling tower fan blades are manufactured with Fibre Reinforced Plastic (FRP).

With continuous Research and Development in material technology, ENCON has achieved to produce highly energy efficient FRP Cooling Tower Fans. These fan blades are manufactured with high quality Epoxy Resin to resist the corrosive and abrasive operating conditions. Additional coating provide resistance to UV degradation. In addition to this, aerofoil profile blades achieves acoustic benefit and better performance.

ENCON’s R&D process is dedicated towards Aerodynamic designing of customise Fan blades to achieve the finest performance and suit the existing system. By careful selection of efficient Airfoil for high lift to drag ratio and optimization of geometrical parameters of fan blades improves the fan efficiency considerably. There are various factors which affect the cooling tower effectiveness and thermal capability.

The main parameters are inlet air wet bulb temperature, airflow through the cooling tower and energy consumed by the fan motors. ENCON’s high energy efficient axial flow fan improve the latter two parameters to enhance the overall Cooling tower performance which also directs the low Return of Investment (ROI) period. The Specific Energy Consumption with FRP fans decreases substantially because of power reduction as well as increased airflow in the cooling tower system. The ROI period can be estimated by improvement in two most important parameters. Firstly the increased fan efficiency and reduced weight of fan blades, reduces the electrical power input to the fan motor. Secondly, the improved airflow increases the cooling tower effectiveness which enhances the overall process. This results in improvement in condenser vacuum and reduction in Turbine back pressure. All this reduction in losses associated with circulating water temperature helps to generate additional power. Hence replacement of existing cooling tower fan with ENCON’s FRP fan not only enhances the energy savings but also reduces the anticipated payback period.