Equipment Type: Cooling Tower

Medium: Water

Quantity: 4 Units

Project Description

This project is a cooling system engineering project for an industrial manufacturing project in West Asia. Four KCN series industrial cooling towers, including models were put into operation on-site. They primarily handle the circulating water cooling of process equipment throughout the industrial production process. 

The project is deeply adapted to West Asia's arid and semi-arid climate, extreme summer temperatures (reaching 47-48℃ in some areas), water scarcity, high water hardness, and frequent sandstorms. The design, manufacturing, and acceptance strictly adhered to West Asia industrial standards and local environmental and water conservation regulations. The equipment, relying on a highly efficient and enhanced heat exchange structure, a wide temperature range operation system, optimized water-saving and concentration ratio design, and long-lasting anti-corrosion technology, effectively solves industry pain points such as the significant impact of ambient temperature on the heat exchange efficiency of cooling towers in arid and high-temperature regions, strict water resource consumption control, and wind, sand, and corrosion. 

It ensures the safe, environmentally friendly, continuous, and economical operation of industrial production systems, helping customers achieve stable production capacity and cost reduction and efficiency improvement under stringent water resource constraints.

Situation

West Asia is an important industrial country in the Middle East, and in recent years has continuously promoted its industrialization process and infrastructure construction. In industrial production processes, smelting equipment, chemical plants, air separation units, and other process equipment generate significant amounts of heat during continuous operation, requiring continuous and stable circulating water cooling to ensure normal equipment operation and product quality.

West Asia's climate poses a significant challenge to outdoor cooling equipment. Most of West Asia has an arid and semi-arid climate, with extreme summer temperatures reaching 47-48°C. In some areas, due to high altitude and the cumulative effect of temperatures, stringent requirements are placed on the heat dissipation efficiency of cooling equipment. Water scarcity is a long-standing challenge for West Asia. 

Recent water crises have rendered existing steam power plants inoperable in some areas during the summer, making water resource constraints a core consideration in industrial project planning. Surface water and groundwater generally have high hardness. Cooling tower water, in direct contact with air, is highly susceptible to scale buildup and microbial growth, reducing heat exchange capacity and increasing the risk of pipe blockage and equipment corrosion. 

Furthermore, frequent sandstorms in parts of West Asia place additional demands on the weather resistance and corrosion resistance of outdoor equipment. 

Traditional cooling towers suffer severe heat exchange efficiency degradation under extreme high-temperature conditions. In water-scarce regions, they require large amounts of replenished water and have low water recycling rates, making it difficult to simultaneously meet multiple requirements such as high temperature and high efficiency, water-saving operation, scale prevention, and weather resistance. This has become a major challenge for project implementation.

The client for this project, BANA MACHINE CO, is a local industrial enterprise in West Asia. This project involves the construction of an industrial cooling system, which places high demands on the reliability, water-saving performance, and operational stability of the equipment under high-temperature and arid conditions.

Task

This project employs a parallel operation mode of four cooling towers to serve the cooling needs of the entire industrial production process. The equipment must be adapted to West Asia's high-temperature and arid climate and water resource constraints. The core challenges are divided into five major categories:

• Stable Heat Exchange at Extreme High Temperatures: Summer temperatures in West Asia can reach above 47-48℃. Under high-temperature environments, the air's moisture absorption capacity decreases, significantly reducing the evaporative heat dissipation efficiency of the cooling towers. The equipment must maintain stable cooling capacity under extreme high-temperature conditions, precisely controlling the process circulating water temperature to prevent overheating, shutdowns, or reduced production capacity due to insufficient heat dissipation.

• Water-saving operation under water scarcity: West Asia faces a severe water shortage problem. The cooling system must strictly control evaporation and windage losses, optimize the water circulation concentration ratio, minimize water replenishment and wastewater discharge, and comply with local water resource management policies.

• Scale prevention and water quality management in high-hardness water: Addressing the high hardness of West Asia surface and groundwater, inhibiting scale buildup and microbial growth in fillers and pipes, reducing pipe blockage and equipment corrosion, and lowering the frequency of routine maintenance.

• Weather resistance and corrosion resistance in windy and sandy environments: Parts of West Asia experience frequent sandstorms, with air containing dust and corrosive substances. The equipment frame, metal components, and electrical systems must possess excellent sealing and corrosion resistance to ensure reliable outdoor operation in all weather conditions.

• Multi-unit parallel and coordinated operation: Four cooling towers (two models) are centrally arranged, requiring uniform distribution of air volume, water pressure, and water flow, dynamic load balance, and ensuring that the failure of a single unit does not affect the overall system operation, thus guaranteeing continuous production in the factory.

Standardization Action

The Casen heat transfer solutions expert team conducted a comprehensive survey of West Asia's climate characteristics, water resource constraints, and industrial safety regulations. Combined with the customer's process cooling parameters, they tailored an integrated solution for four cooling towers, overcoming various challenges one by one. Casen cooling tower products have passed CTI (Cooling Technology Research Institute) certification, possessing internationally recognized heat exchange performance and product quality assurance.

• Extreme high temperature enhanced heat exchange optimization: Targeting the extreme high temperature conditions in West Asia summers, the cooling tower packing area is increased, and the internal air ducts and high-flow water distribution system are optimized to improve gas-liquid contact efficiency and compensate for insufficient evaporative heat dissipation under high-temperature conditions. Both the models are equipped with high-power fan systems, with the designed to handle larger water flow rates and higher heat dissipation requirements. The fan features a variable frequency drive (VFD) system that automatically adjusts its speed based on ambient and process return water temperatures. It operates at full load during periods of extreme high temperatures to ensure effective temperature reduction and achieves energy savings as needed during other periods.

• Water-saving structure and optimized concentration ratio: A high-efficiency water collector is installed at the top of the tower, strictly controlling windage losses within industry-leading standards and significantly reducing water mist entrainment losses. The circulating water loop is optimized to increase the water circulation concentration ratio. A scientific water replenishment and discharge strategy is implemented in accordance with West Asia water resource management requirements, minimizing water replenishment and adapting to industrial water constraints in arid regions.

• Integrated scale prevention and antibacterial water treatment: For the local high-hardness water, an automatic dosing device and a high-precision filter are installed in the water circulation system to continuously release scale inhibitors and antibacterial agents, inhibiting the growth of scale, algae, and microorganisms at the source. The water collection tank adopts a sloping structure and is equipped with an automatic sewage discharge device to periodically remove concentrated impurities and prevent pollutant accumulation. The packing material is made of a corrosion-resistant, scale-resistant modified material, suitable for complex working conditions with arid, high-hardness water.

• Weather Resistance and Corrosion Protection Design for Sandy Environments: The main frame, supporting components, and metal parts of the equipment adopt an overall hot-dip galvanizing anti-corrosion process. The zinc layer thickness exceeds local industry standards, effectively resisting corrosion from sandstorms, alternating wet and dry conditions, and industrial environments. The electrical system uses high-protection-level motors and control boxes with excellent dustproof sealing performance, ensuring long-term stable operation of the electrical system in sandy environments.

• Intelligent Parallel Control System for Four Units: The four cooling towers adopt a centralized pipeline layout, with a balancing pipe added to the main pipeline to ensure balanced water pressure and flow in each tower. Equipped with an integrated intelligent control system, the system enables synchronized start-up and shutdown of multiple units, automatic load distribution, real-time monitoring of operating parameters, and remote fault alarms. Maintenance personnel can centrally manage the entire equipment, reducing manual maintenance costs and ensuring uninterrupted production line operation.

Key Achievements

Commissioned, and put into operation at the West Asia industrial project site. Their performance under all operating conditions met design expectations, and the project achieved several significant results:

• Excellent performance under extreme high temperatures: Under the extreme high temperatures of West Asia summers, the equipment maintained stable heat exchange efficiency, process water temperature was controlled within the design range, and the process equipment operated continuously at full load without any abnormal shutdowns.

• Significant water-saving results: The high-efficiency water collector and optimized concentration ratio design significantly reduced the amount of makeup water compared to traditional cooling towers, and the wind loss rate was far below local control standards, effectively alleviating the constraints of water scarcity on industrial production.

• Outstanding Scale Prevention: The automatic dosing and water quality control systems operate smoothly. No serious scaling or algae growth issues have occurred since the equipment was put into operation. Pipeline and packing blockages have been significantly reduced, leading to a marked decrease in maintenance frequency.

• Meeting Weather and Corrosion Resistance Standards: The equipment has withstood the alternating winds and high temperatures of West Asia. Metal components exhibit excellent corrosion resistance, and long-term operation remains stable.

• Stable and Reliable Operation of Multiple Units: The four parallel cooling towers (a mixed configuration of two models) provide even load distribution. The intelligent control system responds promptly, and long-term operation remains stable, fully meeting the requirements of continuous industrial production.

SMART Metrics

Deliverables: All 4 cooling towers have been installed, commissioned, and connected to the grid.

Overall Energy Saving Rate: The variable frequency control system adjusts as needed, reducing overall operating energy consumption by ≥15%.

Extreme Operating Temperature: Stable long-term operation under extreme high-temperature environments of 47-48℃, with heat exchange efficiency meeting design specifications.

Water Resource Saving Rate: Optimized high-efficiency water collector and concentration ratio, wind loss rate ≤0.015%, significantly reducing makeup water consumption compared to traditional designs.

Scale Prevention and Antibacterial Effect: No large-area scaling or microbial growth failures throughout the year, significantly reducing maintenance frequency.

System Reliability: Real-time monitoring and fault early warning by the intelligent interconnected control system, multiple units serving as backups, system continuous operation rate ≥99%.

Compliance Certification: Equipment has passed local industrial equipment acceptance testing in West Asia, adapting to local climate, water quality, and power grid standards.

Reusability and Management Highlights

lndustrial Cooling Solutions for West Asia and Arid Middle East Regions: Developed to address the extreme heat, water scarcity, and high water hardness typical of West Asia and the Middle East, this standardized water-saving cooling tower solution can be quickly replicated and applied to various industrial manufacturing, petrochemical, and air separation projects in the region.

Comprehensive Cooling Tower Technology for High-Temperature and Arid Regions: An integrated design combining enhanced heat exchange, variable frequency energy saving, water-saving water collection, and anti-scaling and antibacterial properties, suitable for arid and hot Middle Eastern countries such as West Asia, Saudi Arabia, the UAE, and Iraq, and widely applicable in the energy, chemical, and manufacturing industries.

 ndustrial Water Saving and Concentration Ratio Optimization Technology:A highly efficient water collection and water circulation concentration technology solution developed for water-scarce regions, aligning with increasingly stringent industrial water use control policies in arid regions globally, possessing significant regional promotion value.

 Equipment Weather Resistance and Corrosion Protection Solution for Sandstorm Environments: Overall hot-dip galvanized construction + high-protection-level electrical design, suitable for outdoor industrial equipment projects in sandstorm-prone regions such as the Middle East and North Africa.

Multi-unit parallel intelligent control technology: A centralized pipeline optimization, load balancing, and remote monitoring system for mixed configuration of multiple cooling tower models, suitable for centralized cooling scenarios with multiple towers in parallel in various industrial manufacturing bases and industrial parks.