Air Cooled Screw Chillers Manufacturer

Air Cooled Screw Chillers Manufacturer

Leading Air Cooled Screw Chillers System Provider | Geson Chiller

Geson Chiller is globally recognized as the top 300kw Air Cooled Chiller supplier. Our team of experts provides comprehensive solutions to meet all your chiller requirements.

Chillers are essential in industrial settings where they cool water before it circulates back to the cooling tower. Unlike water-cooled chillers that rely on water, air-cooled chillers use air for cooling.

Air-cooled chillers are pivotal in industrial applications like power stations, chemical plants, and food production facilities. They are also effective in smaller commercial settings like office buildings and homes. These chillers employ fans and coolants to deliver efficient cooling.

About Air-Cooled Screw Chillers

Air-cooled screw chillers utilize air and coolants to maintain effective cooling in commercial spaces such as grocery stores, warehouses, data centers, and hospitals. Their efficiency in energy usage makes them superior to water-reliant systems.

Geson Chiller stands out as a premier manufacturer of air-cooled screw chillers in China, providing valuable insights to inform your purchasing decisions.

How Do Air Cooled Screw Chillers Work?

Air-cooled chillers, used extensively in commercial and industrial contexts, process ambient air and extract unwelcome heat without necessitating water for heat dissipation.

The excess heat is pushed into a secondary condense loop before being expelled into a cooling tower, which leads to water loss—a step absent in air-cooled chillers. While this omission impacts the efficiency compared to water-cooled systems, air-cooled chillers offer energy-efficient cooling nonetheless.

Cooling Capacity of Air-Cooled Screw Compressor Chillers

At Geson Chiller, our air-cooled screw compressor chillers boast cooling capacities ranging from 300 to 1400kW, equivalent to 80 to 400 cold tons. Popular models include:

• 50 ton air-cooled screw chillers
• 115 ton air-cooled screw chillers
• 1 ton chiller
• 2 ton chiller
• 3 ton water chiller
• 10 ton chiller
• 20 ton chiller
• 50 ton chiller
• 60 ton chiller
• 100 ton chiller
• 200 ton chiller
• 500 ton chiller

Applications of Air-Cooled Screw Chillers

Air-cooled screw chillers are found predominantly in newer buildings, particularly smaller and medium-rise structures like exhibition halls and office blocks.

Industrial Applications

Industrially, air-cooled screw chillers are favored for their operational ease and efficiency over traditional water cooling towers. Despite a higher initial cost, their lower operational and maintenance expenses make them economically attractive.

Do Air Cooled Screw Chillers Need Cooling Towers?

Air-cooled chillers do not require cooling towers, unlike their water-cooled counterparts. They discard excess heat into the ambient air, necessitating strategic placement in buildings for optimal performance.

Typical Installation Locations

Typically, air-cooled chillers are installed outside buildings, often on rooftops or ground floors, to efficiently expel unwanted heat.

Working Principle of Air-Cooled Screw Chillers

Components of an air-cooled screw chiller include chiller pumps, main pumps, fan coil units, and risers. These units typically operate continuously to ensure consistent cooling throughout a building.

Efficiency of Air-Cooled Chillers

Air-cooled screw chillers are generally less efficient than water-cooled chillers, as determined by the EER value under specific conditions. The absence of a cooling tower diminishes their efficiency but simplifies their maintenance.

Main Components

• Condenser: Removes heat before entering the evaporator.
• Expansion valve: Lowers refrigerant pressure and increases volume.
• Compressor: Generates pressure to circulate refrigerant.
• Evaporator: Processes unwanted heat.
• Power Panel: Controls system power.
• Control Units: Manages the chiller system functions.

Role of Condenser Cooling Fans

Located at the unit's top, these fans draw in ambient air, directing it through the system to dissipate heat from the refrigerant.

Compressor in Air-Cooled Screw Chillers

Screw-type compressors drive refrigerants through the system's tubes, transitioning from high-pressure vapor to medium temperature liquid.

Expansion Valve

The valve lowers the refrigerant's temperature and ensures its proper flow to the evaporator.

Evaporator Function

In the evaporator, return water cools before re-entering the building, completing the cooling cycle repeatedly.

Chillers and Cooling Towers Interaction

Cooling towers enhance the chiller system's efficiency by facilitating heat exchange, crucial for water-cooled chillers but not required for air-cooled versions.

Air-Cooled Condenser Function

Air-cooled condensers, featuring finned tubes, condense steam at low pressure to ensure efficient cooling.

Differences Between Air-Cooled and Water-Cooled Chillers

Air-cooled chillers use fans to cool coils, whereas water-cooled chillers employ pumps. While water-cooled systems are more efficient, they incur higher costs and require more maintenance.

Types of Air-Cooled Chillers

Air-cooled chillers are available in stationary and portable models, catering to various needs.

Effectiveness of Air-Cooled Chillers

These units are effective under specific conditions, providing efficient cooling by releasing heated air outside, especially useful in winter for heating.

COP of Air-Cooled Chillers

The Coefficient of Performance (COP) varies, depending on the chiller type and refrigerant used. Generally, air-cooled chillers have COP requirements based on their cooling capacity.

Operational Mechanism

Air-cooled chillers operate continuously, utilizing refrigerants in a cycle controlled by a power and control unit.

HS Code for Air-Cooled Screw Chillers

For more detailed specifications, refer to the air chillers catalog from Geson Chiller.

Popular Features of Air-Cooled Chillers

These chillers are popular due to their compact size, easy installation, and suitability for medium to large commercial and industrial sites.

Comparison: Air-Cooled Module System vs. Air-Cooled Screw System

1. System Overview

Both systems consist of outdoor air-cooled air conditioners, terminal equipment like fan coils, and water piping systems, distributing hot and cold air to rooms.

2. Common Advantages

1. Investment Savings:

Both systems use water as a refrigerant, lowering construction and equipment costs. They also share cooling and heating capabilities, eliminating separate heating costs.

2. Versatility:

Suitable for a wide range of applications including villas, hospitals, and supermarkets.

3. Flexible Layout:

Different indoor units can be used to match varying décor styles, ensuring configuration adaptability.

3. Detailed Comparison

Differences between the two systems are highlighted, considering components, operating costs, and reliability.

1. Screw compressors offer high precision with low failure rates and efficient energy use, but at a higher initial investment.
2. Scroll compressors, used in modular units, are less efficient and incur higher maintenance costs but have a lower starting cost.

For buildings with cooling capacities ranging from 20kW to 400kW and smaller areas, modular systems are ideal. For larger capacities over 300kW, air-cooled screw units are more suitable.

Learn more about the How Does an Air Cooled Chiller Work. Explore our detailed guides or consult our experts today!

Additional resources:
DIFFERENCES BETWEEN AIR-COOLED CHILLER VS. ...