Automation of Cooling Tower
Our FYP Project, Automation of a Cooling towers are actually a special type of heat exchanger that allows water and air to come in contact with each other to lower the temperature of the hot water during the cooling tower working process, small volumes of water evaporate, lowering the temperature of
2025-06-28 16:30:30 - Adil Khan
Automation of Cooling Tower
Project Area of Specialization Electrical/Electronic EngineeringProject SummaryOur FYP Project, Automation of a Cooling towers are actually a special type of heat exchanger that allows water and air to come in contact with each other to lower the temperature of the hot water during the cooling tower working process, small volumes of water evaporate, lowering the temperature of the water that's being circulated throughout the cooling tower and this all process is going to be automatic with the help of different sensing devices such as temperature sensor, PH sensor, chemical dosing etc.
Cooling towers are essential to power plant operation but are often overlooked as a source of savings. If not properly monitored and maintained, the towers and the cooling water they provide can adversely affect the reliability, efficiency and cost of the power generating process.
Equipment failures within a cooling tower can be costly to fix, because forced outages and create an unsafe environment for plant personnel. Additionally, a decrease in cooling tower efficiency raises the tower's water temperature which degrades performance and increases costs.
The smallest increase in water temperature can adversely affect the rest of the generation process while escalating energy consumption and costs.
So to overcome the above mentioned problem we have proposed a solution that through automated strategies help we can identify potential problems, schedule maintenance and prevent unplanned downtime.
Automatic systems can optimally operate towers and require limited operational work.
Raspberry pi Controller will be incorporated with various type of sensors to monitor the overall process of cooling tower.
User friendly human machine interface (HMI) will display the status of the overall process of cooling tower. Our project will be helpful in every field where the system requires cooling environment such as petroleum refineries, petrochemical plants, food processing plants and semi-conductor plants.
The process of automation of cooling tower will save time and reduce human efforts by controlling and monitoring the overall process. The whole internal process will be controlled through HMI or Raspberry Pie system. The design will be made as per the project requirement. Hardware will be design in such a way that it will show the complete process of cooling tower.
The controller will continuously monitor the overall process of cooling tower through different sensors and will send command according to the situation. The mobile application will be designed for monitoring and controlling purpose.
The application includes the various measurements of the sensor. Analog to digital converters, send value from sensor to microcontroller, then continue to display the value in application at Android. The application in Android will control the microcontroller. This will update the user by sending the value of sensor for monitoring and observing.
Project ObjectivesAs we know that the Cooling towers are primarily used for heating, ventilation, and air conditioning (HVAC) and industrial purposes. Cooling towers provide a cost-effective and energy efficient operation of systems in need of cooling. More than 1,500 industrial facilities use large quantities of water to cool their plants.
The purpose or the objective of our project is to provide everlasting and the most efficient automatic cooling tower especially required in industries where the generation is through generators which results in the rise of temperature which is dangerous for the generators as it will shut down the entire power house if the heating temperature boosts up so to prevent the rise of temperature cooling towers are designed to lower the temperature of the generator and keep it cool.
Mostly the design of cooling towers in most of the industries are manual based, their operation is controlled manually which is also considered as the consumption of time. So we have decided to design such a system which will become beneficial for the industries and will also limit the human effort.
Automation of cooling tower is our FYP project and we have decided to make this industrial based project capable in different fields or environments such as textile industries, petroleum refineries, petrochemical plants, food processing plants, semi-conductor plants etc. Also, cooling towers can be used to provide comfort cooling for large commercial buildings like airports, schools, hospitals, or hotels.
The process of automation of cooling tower will save time and reduce human efforts by controlling and monitoring the overall process. The whole internal process will be controlled through HMI or Raspberry Pie system. The design will be made as per the project requirement. Hardware will be design in such a way that it will show the complete process of cooling tower.
Project Implementation MethodThe prototype of cooling tower will be design. It will be design in such a way that it will show the complete process of cooling tower. The whole internal process will be controlled through Raspberry Pie controller and the data acquisition and control will be through mobile application. The design will be made as per the project requirement.
The controller will continuously monitor the overall process of cooling tower through different sensors and will send command according to the situation. The application will be designed for monitoring and controlling purpose.
The application includes the various measurements of the sensor. Analog to digital converters, send value from sensor to microcontroller, then continue to display the value in application at Android. The application in Android will control the microcontroller. This will update the user by sending the value of sensor for monitoring and observing.
Raspberry Pi OS (Raspbian)software will be implemented to link with the hardware. Connection between raspberry pie and mobile app will be through internet link via USB dongle. Project controlling will be through raspberry pie and android app. This software will interface with all the sensors required in the project.
- Use of temperature sensor.
- Use of water level sensor.
- Use of PH & TDS sensor.
- Chemical dosing through solenoid valve.
- Use of Solenoid valve for Feeding & Draining water.
- Use of CFM sensor.
- We will use electric stove that will work as a heat exchanger.
The project is about the automation of cooling tower for future system can expand the features like auto industrial water addition based on level of tank, using TDS sensor for continuously sensing and monitoring the TDS of water.
For the continuous operation of the system, the automatic controlling and monitoring through Raspberry PI will increase the demand of our project. Human efforts will be minimized through the automation of cooling tower.
The benefits of this project can be seen in reduction or mitigation in the maintenance required by cooling towers and closed-loop fluid coolers — and the associated costs in terms of dollars and equipment downtime. Suffice to say, if more elements in the maintenance process are handled automatically, the healthier the system will be.
The concern for Eliminating or minimizing the microbial growth within various parts of the system reduces the time and effort required to maintain nearly all the components of a cooling tower.
Implementing smart solutions can give benefit and ease maintenance headaches. The major advantages we can get are:
- Reducing Manual Water Treatment.
- Automated Controls.
- Mitigating Vibration.
Building Autonomous System (BAS):
Beyond controlling water treatment systems, a building automation system (BAS) can be integrated with the cooling plant to provide maintenance benefits.
Often, a Building Autonomous System incorporates other data-collection and automation functions such as water-level metering, activation of makeup water treatment components and monitoring of water conductivity. The blow down of the cooling system is automated around the conductivity set point. All of this information can be accessed remotely by the owner or service provider to conduct maintenance.
The maintenance requirements of a water-cooled system are determined largely by water quality and treatment, using less water will inherently mean less maintenance. That, along with water conservation, are the reasons some manufacturers have begun offering hybrid cooling solutions.
Conclusion:
In conclusion, as automation and autonomy proliferate across all sectors of the heating and cooling industry, large cooling tower and closed-loop fluid coolers have not missed the trend. Because of the advancements made to these critical pieces of equipment, cooling systems have become even more economical to own and operate.
Technical Details of Final DeliverableOur final deliverable will include 3-ton cooling tower, Raspberry pi controller, temperature sensors, PH sensor, TDS sensor, water level sensor, CFM sensor, Solenoid valve for Feeding & Draining water and for chemical dossing, the data acquisition and control will be through Mobile Application.
The complete process of cooling tower will be continuously control & monitor from controller through different sensors. For example, the difference of inlet temperature and outlet temperature would be between 10-15 degree if the temperature difference is not in the range the controller will generate a command to drain out that water and feed fresh water to maintain the temperature difference. The PH & TDS of water and all other parameters will be control through the controller. Mobile application will display the status of the overall process of cooling tower. User can control and monitor through this app.
Final Deliverable of the Project HW/SW integrated systemCore Industry ManufacturingOther IndustriesCore Technology OthersOther TechnologiesSustainable Development Goals Industry, Innovation and InfrastructureRequired Resources| Item Name | Type | No. of Units | Per Unit Cost (in Rs) | Total (in Rs) |
|---|---|---|---|---|
| Total in (Rs) | 51800 | |||
| 3 Ton cooling tower | Equipment | 1 | 20000 | 20000 |
| Raspberry Pi | Equipment | 1 | 10000 | 10000 |
| Temperature Sensor | Equipment | 2 | 500 | 1000 |
| Water Level Sensor | Equipment | 1 | 500 | 500 |
| TDS Sensor | Equipment | 1 | 2500 | 2500 |
| PH Sensor | Equipment | 1 | 3500 | 3500 |
| Solenoid Valve | Equipment | 3 | 1500 | 4500 |
| CFM Sensor | Equipment | 1 | 800 | 800 |
| Electric Stove | Equipment | 1 | 1500 | 1500 |
| Electric Panel | Equipment | 1 | 1500 | 1500 |
| Electrical Components | Miscellaneous | 1 | 5000 | 5000 |
| Water pump | Equipment | 1 | 1000 | 1000 |