Water Cooled Scroll Chillers

Water Cooled Scroll Chillers are reliable and efficient cooling systems designed to provide controlled chilled water for industrial and commercial applications. They are particularly suitable for facilities where consistent cooling, compact equipment, dependable operation and efficient heat rejection are important.

Reynold India offers Water Cooled Scroll Chillers in the 18 kW to 422 kW capacity range, with configurations suitable for applications requiring temperatures from approximately +30°C to -10°C, depending on the system design and operating conditions. These chillers use scroll compressor technology and a water-cooled condenser to remove heat from the chilled-water circuit.

Unlike air-cooled chillers, water-cooled systems reject condenser heat through a water circuit, normally connected to a cooling tower or another suitable heat-rejection arrangement. This makes them a practical choice for installations where a condenser-water system is available.

What Is a Water Cooled Scroll Chiller?

A Water Cooled Scroll Chiller is a refrigeration system that uses scroll compressors to produce chilled water while using condenser water to reject the absorbed heat.

The system has four primary refrigeration stages: evaporation, compression, condensation and expansion.

Warm process water enters the evaporator, where heat is transferred from the water to the refrigerant. The chilled water is then circulated back to the process or equipment that requires cooling.

The refrigerant absorbs this heat and enters the scroll compressor. The compressor raises the refrigerant pressure and temperature before sending it to the condenser. In the water-cooled condenser, heat is transferred from the refrigerant to the condenser-water circuit.

The condenser water carries the heat toward the cooling tower or other heat-rejection equipment. After condensation, the refrigerant passes through an expansion device, reducing its pressure and temperature before returning to the evaporator.

This cycle continues continuously to maintain the required chilled-water temperature.

How Does a Water Cooled Scroll Chiller Work?

The operation of a water cooled scroll chiller is based on the vapour-compression refrigeration cycle.

First, warm return water from the application enters the evaporator. Refrigerant circulating through the evaporator absorbs heat from the water, causing the water temperature to fall.

The cooled water is then pumped back to the connected application. The refrigerant, now carrying the absorbed heat, enters the scroll compressor. Compression increases its pressure and temperature.

The high-temperature refrigerant then enters the water-cooled condenser. Condenser water absorbs the heat from the refrigerant and carries it away from the chiller.

The refrigerant condenses into a high-pressure liquid and passes through the expansion device. Its pressure and temperature decrease, after which it returns to the evaporator to absorb more heat.

The process repeats as long as cooling is required.

Key Features of Reynold India Water Cooled Scroll Chillers

Reynold India's Water Cooled Scroll Chillers are designed for industrial and process applications where reliable cooling and ease of operation are important.

1. Multiple Refrigeration Circuits: Each compressor can operate with its own individual refrigeration circuit in multiple-compressor configurations. This arrangement provides operational flexibility and allows maintenance to be carried out on an individual module while other available circuits continue operating, subject to the system configuration.
2. Compact Skid-Mounted Construction: The equipment can be supplied as a skid-mounted package with integrated components such as the fluid pump and storage tank. This can simplify installation and reduce the amount of site assembly required.
3. Energy-Efficient Scroll Compressors: Scroll compressors are well suited to compact and medium-capacity refrigeration applications. Their relatively simple compression mechanism can provide reliable operation when properly selected and maintained.
4. Electronic Expansion Valves: For larger capacities, electronic expansion valves can be used for improved refrigerant control. They can help maintain appropriate refrigerant flow according to changing operating conditions and contribute to efficient and stable operation.
5. Process-Oriented Evaporator Options: Depending on the application, tube-in-tube and shell-and-tube evaporators are available. These configurations can be selected according to the required flow, pressure, temperature and process conditions.
6. PLC-Based Control: PLC-based automatic control is available for suitable configurations. Remote operation and data-logging capabilities can also be incorporated where required, making the system suitable for applications that require centralized monitoring.
7. Stepped Capacity Control: Multiple-compressor configurations can provide automatic stepped capacity control from approximately 33% to 100%, depending on the specific system configuration. This helps the chiller respond to changes in cooling demand.

Benefits of Water Cooled Scroll Chillers

• Efficient Heat Rejection: Water provides effective heat transfer, making water-cooled condenser systems suitable for installations where a cooling tower or condenser-water loop is available.
• Reliable Process Cooling: Stable chilled-water supply is important for manufacturing and process applications. Properly selected scroll chillers can provide dependable cooling for equipment and production processes.
• Compact Equipment: Scroll compressor technology allows the development of compact packaged systems, making these chillers suitable for locations where equipment space is an important consideration.
• Easy Maintenance: Individual refrigeration circuits in multi-compressor systems can provide operational flexibility. Depending on the configuration, a service activity on one circuit may not require the complete system to be taken offline.
• Suitable for Tropical Conditions: Reynold India's water-cooled scroll chiller range is designed for operation in demanding environmental conditions, including tropical climates, when correctly selected for the site conditions.
• Precise Temperature Control: Electronic expansion valves and appropriate control systems can help maintain stable operating conditions, particularly in process applications where water temperature needs to be controlled closely.

Applications of Water Cooled Scroll Chillers

Water Cooled Scroll Chillers are used in a wide range of industries where controlled cooling water is required.

• Plastic Industry: Plastic injection moulding, extrusion, blow moulding and other processes require cooling for moulds, machines and process circuits. Consistent chilled-water temperature can help maintain stable production conditions.
• Pharmaceutical Industry: Pharmaceutical manufacturing facilities may require chilled water for process equipment, HVAC systems and temperature-sensitive operations. Chiller selection should be based on the actual process requirements and required temperature range.
• Food and Beverage Industry: Water cooled scroll chillers can support process cooling applications in food and beverage production, including equipment and water-circuit cooling.
• Chemical Industry: Chemical manufacturing processes can generate significant heat and may require controlled cooling. A properly engineered water cooled scroll chiller can provide cooling for suitable process applications.
• Hospitals and Healthcare Facilities: Water-cooled chillers can be used for centralized cooling systems and selected equipment-cooling applications, provided the temperature, water quality and reliability requirements are correctly evaluated.
• Commercial Buildings: Hotels, offices, commercial complexes and other buildings can use water-cooled scroll chillers as part of a centralized chilled-water air-conditioning system.
• Manufacturing Plants: Industrial machinery, testing equipment, production lines and other manufacturing processes may require continuous or intermittent chilled-water cooling.

Water Cooled Scroll Chiller vs Air Cooled Scroll Chiller

The primary difference is how the condenser rejects heat.

An air-cooled scroll chiller uses fans and ambient air to remove heat from the condenser. A water-cooled scroll chiller uses condenser water, generally connected to a cooling tower.

Water-cooled systems can be advantageous where a suitable condenser-water infrastructure exists and efficient heat rejection is required. Air-cooled systems can be simpler where water availability or cooling-tower installation is limited.

The correct choice depends on the application, operating hours, ambient conditions, available space, water availability, maintenance requirements and overall lifecycle cost.

How to Select the Right Water Cooled Scroll Chiller?

Before purchasing a Water Cooled Scroll Chiller, it is important to evaluate the complete operating conditions rather than selecting the equipment only by nominal capacity.

Important parameters include:

• Required cooling capacity
• Chilled-water inlet temperature
• Chilled-water outlet temperature
• Required water flow rate
• Condenser-water temperature
• Condenser-water flow
• Process load profile
• Operating hours
• Ambient conditions
• Electrical supply
• Water quality
• Cooling tower availability
• Installation space
• Required control system
• Future expansion requirements

A proper heat-load calculation should be completed before finalizing the chiller size. Oversizing can increase capital and operating costs, while undersizing may result in insufficient cooling during peak demand.

Why Choose Reynold India?

Reynold India is an Indian manufacturer of industrial water chillers and cooling solutions, serving industries such as pharmaceuticals, plastics, food processing, power generation and other process applications. The company's product portfolio includes both air-cooled and water-cooled chillers along with customized cooling solutions.

For customers searching for a Water Cooled Scroll Chiller Manufacturer in India, Reynold India provides application-focused chiller solutions based on cooling capacity, process temperature, flow requirements, operating conditions and installation requirements.

Its Water Cooled Scroll Chiller range is also positioned for plastic-processing and other industrial applications where compact, reliable and controlled cooling is required.

Conclusion

Water Cooled Scroll Chillers provide a dependable solution for industrial and commercial applications requiring controlled chilled-water cooling. With scroll compressor technology, water-cooled heat rejection, multiple refrigeration circuit options, compact skid-mounted construction, process-oriented evaporator configurations and automatic control options, these chillers can be adapted to a wide range of cooling requirements.

Reynold India's Water Cooled Scroll Chillers are available in the 18 kW to 422 kW range and can be configured for applications requiring temperatures from +30°C to -10°C, depending on the specific design and operating conditions.

Whether the requirement is for plastic processing, pharmaceuticals, food and beverage production, chemical manufacturing, healthcare, commercial cooling or general industrial process cooling, proper chiller selection should be based on the actual heat load, temperature requirements, flow rate and site conditions.

Looking for a Water Cooled Scroll Chiller Manufacturer in India? Contact Reynold India to discuss your cooling requirement and select a chiller configuration suitable for your application.