Hybrid Cooling Tower Control for Low-Water Process Cooling
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Solution Overview
Problem
Existing cooling systems, particularly in chemical industries, face challenges in controlling fluid temperatures efficiently while minimizing energy and water consumption, especially in regions with limited water availability, leading to high operational costs and environmental impact.
Innovation Solution
A hybrid cooling tower system utilizing a four-stage cooling process: heat exchange with ambient air, adiabatic humidification, surface evaporation, and water contact in a basin, controlled by intelligent temperature sensors and valves to optimize water and energy use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If conventional water-cooled heat exchangers are used, then effective temperature control is achieved, but water consumption is very high
Solution Approach 1:
The cooling system is divided into multiple independent heat exchangers with different cooling mechanisms (air-cooled, water-cooled, hybrid) that can operate independently or in combination, allowing selective use based on temperature requirements and water availability
Solution Approach 2:
The system changes the cooling parameter from continuous water cooling to intermittent or conditional water cooling by using intelligent control that activates water-cooled modes only when necessary, thereby reducing overall water consumption while maintaining temperature control
2Quantity of substance
If air-cooled heat exchangers are used, then water consumption is reduced, but cooling efficiency decreases in hot and humid zones
Solution Approach 1:
The system dynamically adjusts the cooling mode (air-cooled, water-cooled, or hybrid) based on real-time environmental conditions and temperature requirements, optimizing cooling efficiency while minimizing water consumption in different climatic scenarios
Solution Approach 2:
The hybrid heat exchanger system provides multiple cooling functions (air cooling, water cooling, and combined hybrid cooling) within a single integrated system, enabling it to adapt to various environmental conditions and maintain high cooling efficiency across different climates
3Temperature
If high water consumption is used for cooling, then temperature control is effective, but operational costs and environmental damage increase
Solution Approach 1:
The intelligent control system continuously monitors temperature, environmental conditions, and system performance, automatically adjusting the cooling mode and water flow rates to optimize temperature control while minimizing water consumption and operational costs
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Achieves significant reduction in water consumption by up to 90% compared to conventional systems, while maintaining effective temperature control across varying climates, using minimal energy and water only when necessary.
Implementation Method 1
heat exchange with ambient air
Implementation Method 2
heat exchange with ambient air as a cooling fluid
Implementation Method 3
adiabatic humidification
Implementation Method 4
adiabatic humidification
Implementation Method 5
surface evaporation
Implementation Method 6
heat transfer from hot fluid passageways to cooler fluids
Data Source
AI summary
The invention is an industrial cooling system to control the temperature of the water coming back from the process using a hybrid of air-cooled and water-cooled phases related to the cooling systems, including heat exchangers to reduce and control the temperature of the fluids. This invention is also a hybrid system of air-cooled and water-cooled heat exchangers and heat exchangers immersed in water, and features intelligent control of the fluids entering the process reactors. The invention is a type of cooling tower based on heat exchanges between the hot fluid and ambient air as a cooling fluid and also heat transfer from hot fluid passageways with cooler fluids such as water or cooled air with the help of water. The fluid enters a round trip cycle by entering the tube network and finned tubes of the main heat exchanger.