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A cooling tower is a device that is used to reject the waste heat to the atmosphere by cooling down the water stream. It is one type of cooling tower material that is made up of reinforced plastic which is known for high corrosion resistance. Here is all the data you should know for making the right choice of FRP Cooling tower.<br>
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What should be selection criteria for FRP cooling tower? What What is is FRP A cooling tower is a device which is used to reject the waste heat to the atmosphere by cooling down the water steam. FRP stands for Fibre reinforced plastic, it is one type cooling tower material that is made up of reinforced plastic which is known for high-corrosion resistance. FRP cooling cooling tower? tower? What What should should be be selection selection criteria criteria of of FRP FRP cooling cooling tower? tower? 1. 1. Design Design criteria The size of the cooling tower depends upon flow, water at outlet and inlet temperature and also WBT (wet bulb temperature). The term ‘approach’ is defined by the difference between wet bulb temperature and outlet temperature. If the ‘approach’ is smaller, then it results in a large size tower. For cost-effective selection, the basic criteria are 4 degree Celsius ‘approach’. If we use small criteria ‘approach’ like 2.8, it will not be economical, also it will not be certified by the CTI board (Cooling technology institute). Additionally, if the selection is made using 4 degree Celsius ‘approach’, it will result in high condensing temperature, which will reduce efficiency. criteria – – Approach. Approach. 2. 2. National National Building The National Building Code of India lays a comprehensive set of regulations for structural building and installation of building systems, including HVAC equipment. Compared to older building codes, NBC is stringent with safety and efficiency standards. The code determines the structural integrity, operational capability, anchorage and seismic & wind load resistance. It is essential that the cooling towers and other equipment permanently installed on a building must be designed to meet safety provisions of NBC. Building Code Code of of India India The cooling tower should be certified by an independent agency to meet specified conditions. A typical value for the wind forces in the region is 2.8kN/gm or 110 Km per hour wind velocity.
3. 3. Types Types of of fan There are two variants in fan type of FRP and FRP INDUCED DRAFT using axial fans. fan in in the the cooling cooling system- system- Axial FRP cooling Axial or or Centrifugal Centrifugal cooling towers towers- FRP forced draft using a centrifugal fan Advantage Advantage of of using 1. It consumes lower energy, generally in the range of 50% 2. Easy to maintain 3. Less cost per tonne of heat rejection using Axial Axial fan fan in in cooling cooling towers towers are are – – The benefits of FRP INDUCED DRAFT cooling tower- axial type, makes it first of buyers. In the case where the cooling towers are required to be installed inside the building and the fans need to handle extra static pressure or to achieve a low sound level, only then centrifugal fan type cooling should be considered. In new-day technology, it is easy to build and install an axial fan unit which is suitable for operational efficiency of FRP COOLING TOWER. 4. 4. Calculate Calculate units While selecting a cooling tower, our first thought is to look for a cheaper cooling tower, but it can cost you much more if you don’t consider other key aspects apart from the price. It is essential for a buyer to learn about how much power is required by fans and other related parts. After evaluating all the cost, one needs to consider how much energy is used by FRP cooling tower to reject one tonne of heat. If the above parameters aren’t considered, you may end up spending more in the longer run than cooling tower’s actual price. units used used for for one one tonne tonne of of heat heat rejection rejection 5. 5. Construction Construction Material There is various material used for constructing cooling tower, such as galvanised steel, stainless steel, FRP (Fibreglass reinforced plastics) or combination of these. When cooling needs to operate in harsh conditions, then the galvanised steel is preferred with a special coating. Stainless steel is the best alternative of galvanised steel, as it provides high corrosion resistance in high chloride environment. FRP is the most cost-effective material for cooling tower. Moreover, it requires very less maintenance and there no risk of corrosion. However, it is advisable to cautiously choose the right FRP material by considering the flammability rate and its UV protection. TowerTech provides high- quality cooling towers. Material
6. 6. Types Types of of cooling 1) 1) FRP FRP ROUND ROUND COOLING Round Round bottle bottle shaped shaped cooling vibration compared to square type cooling tower. Additionally, round-shaped cooling towers have more strength, and it allows uniform air distribution which increases the heat rejection. The design of the round shaped cooling tower enables saving space, power and water consumption. cooling tower COOLING TOWER cooling tower tower TOWER tower is suitable to withstand high wind velocity, sudden shocks and 2) 2) FRP FRP SQUARE SQUARE COOLING FRP cooling tower operates on induced draft counter flow principle operation. The fan generates air movement vertically upwards on the tower overall in the fills opposite to the water flow. Square shaped cooling tower is designed in a way that lets it distribute water uniformly and perform excellent heat transfer. The cooling tower is designed with virgin honeycomb PVC fills and drift eliminator that boosts efficiency and maximise economy. COOLING TOWER. TOWER. 3) 3) Crossflow Crossflow type In crossflow crossflow cooling while the waterfalls are in the vertical direction. The splash type filling takes place in this type of cooling tower. Crossflow cooling towers are eligible and flexible for the applications where the capacities of holding suspended splashes are high. type cooling cooling tower cooling tower tower, the air which is flown towards the fills moves in a horizontal direction tower