Freon Evaporator | Components, Specifications, Design, and Selection

The ATE series Freon evaporator, available in a wide range from 3 to 70 kW, caters to various refrigeration requirements. If needed, customized Freon evaporators with specific capacities can be designed and manufactured upon request.

These evaporators are compatible with Freon-based refrigerants and are ideal for applications in subzero and above-zero cold storage environments. They are suitable for cold storage facilities for meat, poultry, fish, shrimp, fruits, vegetables, pharmaceuticals, and blast freezer. The system can achieve temperature ranges from -45°C to +5°C, making it versatile for a wide array of refrigeration needs.

 Introducing the ATE Series Freon Evaporator

The ATE series Freon evaporator is a highly efficient and versatile piece of refrigeration equipment widely used in industrial refrigeration systems and cold storage facilities. These evaporators are specifically designed for the evaporation of halocarbon refrigerants (Freons) and stand out for their robust construction, high performance, and flexible capacity options. Their design makes them an ideal choice for a wide range of refrigeration applications, delivering reliable cooling for various industries.

 Features of the ATE Series Freon Evaporator

The ATE series Freon evaporator comes with a range of features designed to enhance performance and durability:

– Various Capacities: ATE evaporators are available in a wide range of capacities, meeting diverse refrigeration demands across different industries.

– Compatible Refrigerants: These evaporators are compatible with several halocarbon refrigerants, including R507, R502, R134-A, R404-A, and R22.

– Strong and Hygienic Body: Built with pre-galvanized iron sheets and coated with electrostatic powder paint, the evaporator is highly resistant to corrosion and moisture, ensuring long-lasting durability.

– High-Efficiency Coil: Equipped with copper tubes and corrugated aluminum fins, the evaporator boasts a high heat transfer coefficient, significantly improving cooling efficiency.

– Flexible Design: Customization options are available, allowing the evaporators to be designed and manufactured with capacities tailored to specific project needs.

– Ease of Access: Both sides of the evaporator can be easily opened, simplifying maintenance and providing quick access to internal components.

  Advantages and Disadvantages of the ATE Series Freon Evaporator

In the table below, the advantages and disadvantages of the ATE series Freon evaporator are mentioned.

Types of Freon Evaporators

Freon evaporators come in various designs, each suited for specific needs and environmental conditions. Selecting the appropriate evaporator can optimize the refrigeration system’s performance and reduce costs. As technology advances and industries grow, these evaporators play an increasingly important role in different applications.

1. Tubular Evaporators (Shell and Tube)

   Shell and tube evaporators consist of Freon-filled tubes enclosed within a shell. The Freon flows through the tubes, absorbing heat from the water in the shell. These evaporators offer a simple design and are easy to repair, making them suitable for industrial applications and chillers with varying capacities. They are space-efficient and affordably priced, making them a popular choice.

2. Plate Evaporators

   Plate evaporators are made up of parallel metal plates through which both Freon and a hot fluid flow. This design increases the surface area for heat exchange, resulting in higher efficiency compared to other types. Plate evaporators are compact and lightweight, but they are primarily used for cooling water, not air in cold rooms.

3. Air-Circulation Evaporators (Forced Draft Evaporators)

   Air evaporators use fans to circulate air and lower its temperature. Hot air is drawn through the evaporator coil, where heat is absorbed by the Freon. These evaporators ensure uniform temperature distribution and provide efficient cooling performance. However, the fans can generate more noise during operation.

 Freon Evaporator Components

Freon evaporators are made up of several key components that contribute to their efficient operation and durability. Below is a detailed overview of the main parts of the ATE series Freon evaporator:

1. Freon Evaporator Body

   The ATE Freon evaporator has a solid, hygienic body compliant with the HACCP food production standard. It is constructed from pre-galvanized iron sheet coated with electrostatic powder paint, offering high resistance to corrosion and moisture. The body features two side panels that can be easily opened, providing convenient access to the refrigerant dispenser and defrost heater elements for maintenance. Two studs are installed on the upper part for ceiling mounting, while a sloped tray at the bottom collects and drains water during defrosting.

2. Freon Evaporator Coil

   The coil is made of copper tubes and aluminum fins, designed with sinusoidal wave patterns to optimize heat transfer. The distance between the fins can range from 4 to 12 mm, allowing the evaporator to perform in various environments with different temperatures and humidity levels. The mechanical expansion method minimizes the distance between the tubes and fins, further enhancing the heat transfer coefficient. The ATE Freon evaporator is compatible with a range of refrigerants, including R507, R502, R134-A, R404-A, and R22, and is pressure-tested with nitrogen gas up to 450 psi.

3. Freon Evaporator Fan

   The evaporator’s air circulation is managed by axial reverse-cycle fans from reputable brands like   Ziehl-Abegg or EBM from Germany, which operate with minimal noise. The fans are IP54-rated for protection against dust and water, and they come with a one-year warranty. Depending on the evaporator’s capacity, fan diameters range from 30 to 71 cm. The fans operate on electrical systems of either 380V/50Hz or 220V/50Hz, and they are connected through a distribution box mounted on the evaporator body.

4. Freon Evaporator Defrost

   The defrosting system in the ATE Freon evaporator is electrically powered. Electrical defrost hetaer elements are strategically placed in the coil and tray, activated by an operator or timer to melt ice that accumulates on the coil. The defrosting elements are made from stainless steel, ensuring longevity, and are housed in a partition box attached to the evaporator’s body. The defrost system ensures optimal performance by maintaining airflow and preventing ice buildup.

 HACCP compliant design

The ATE series Freon evaporator is designed with strict adherence to HACCP (Hazard Analysis Critical Control Points) standards, ensuring optimal hygiene for food production and storage environments. The evaporator coil is constructed to prevent the accumulation of bacteria and other harmful microorganisms, with a smooth surface that is easy to clean and maintain. Additionally, the body of the evaporator is designed without negative angles, eliminating areas where debris and contaminants might collect. This streamlined construction supports thorough cleaning and disinfection, ensuring compliance with food safety regulations while maintaining high performance in cold storage applications.