COOLING TOWER ENERGY ANALYSIS

CTP ENGINEERING 's vision is based on the experience of company employees who have worked in a very wide range of companies and is constantly trying to find new and technological ones with an innovative point of view that is questioning traditions. In this context, it has been determined that the air flow requirement in the water cooling towers is at a considerable cost input.

The roof and chimney diameters corresponding to the flow requirements, which are designed according to the costs rather than according to the necessities in the sector, were unfortunately made by taking profitability of the company rather than the interests of the country. These designs, made 25 years ago, have been a law in the sector and no one has been able to question these laws.

Two separate explanations will be made to realize this situation.

Fan diameter and engine power
It is normally possible to produce a maximum flow rate of 21 m3 / sec at a pressure of 120 kPa at 7.5 kW with a fan of 1450 mm diameter.

In a two-cell structure, a total of 2 fans can achieve a flow rate of 42 m3 / sec using a power of 15 kW.

However, when we bring this diameter to 2450 mm, a flow rate of 45 m3 / sec can be obtained at a pressure of 120 kPa (11 kW).

Produced flow rate is approximately 7% higher

Spent power difference is about 27% lower

So with a single fan we can generate 7% more flow with 11 kW power with 2 7,5 kW motors with 27% less power.

This system may come to mind why it has not been designed before. There are 3 reasons for this.

Material Factors: As the chimney and fan diameters increase in tower designs, the costs increase. In some cases, the cost increases because of the necessity of reducer usage. Therefore, designs are always tried to be reduced.
Learned helplessness: Tower firms generally know how to do this with the copy and paste mentality, what they do with the company they work in, they know it, they accept it, and they do it in the same way. And learned helplessness spreads from the company to the company like a contagious disease.
Physical Factors: Suppose any engineer has tried to put this advantage on the market and apply it, in which case the situation will be met.
New design studies for new adaptations (a long and costly process)
New investment cost for new molds (serious financial investment need)
are the factors that prevent this new innovation from occurring.

 

Smart tower system to make consumptions as needed

The water cooling huts are operated completely in accordance with the working principle of the outdoor environment. The formation of summer and winter, the formation of night and day, and the dryness of the air in the wet and dry areas seriously affect the efficiency of tower operation. However, since there is no automation in most of the 24/7 clubs, the tower works with the same water and energy consumption on the peak hot day of the season and on the coldest day.

However, with an easy automation, the tower pool can be kept constant at the desired temperature. According to the information received from the tower pool, when the tower fan speeds are required to keep the pool water temperature constant, the full load will automatically slow down to 40%, and if necessary, will automatically stop and if necessary, will start to work automatically from this stand-by condition and if necessary can go again to full load. This posture start-up deceleration and acceleration can be done entirely ramp-up and will not cause any damage to the engine and fan system. The speed of the fan can be slowed down according to the need, which will provide a serious electricity and water saving. With this automation, there will be no such thing as summer or winter, and the operator will only see the desired temperature level on the screen and automatically adjust the fan speed.

This possible slowdown in tower fan speeds will extend engine and fan life and reduce the cost of maintenance and repair.

The operational logic and efficiency of the radial fan-driven lifts with axial fans are already incomparable. Produced with 40 years old technology and

With its own propulsion (but not able to move far enough due to its low propulsion speed), the air re-absorption is not 1. The radial fan wheels that produce inefficiency
Due to the high suction speed, both the pushing (100% relative humidity) of the air and the higher suction speed cause the more particles in the environment to enter the tower and pollute the user much faster,
Radial fans have lower suction power than axial fans, higher energy requirements and higher maintenance costs are known disadvantages to almost everyone.
prepared

ELECTRICAL ELECTRONICS ENGINEER

EYÜP OLGAÇ