Transporting perishable goods can be a challenging task. Whether it’s meat, dairy products, or floral arrangements, maintaining the right temperature is imperative to keep the products fresh and prevent spoilage. That’s where trailer refrigerators, popularly known as reefer trailers, come into the picture.
A trailer refrigerator is a temperature-controlled trailer designed to transport perishable goods over long distances. In this article, we delve deeper into this innovative piece of equipment and explore everything you need to know about trailer refrigerators.
Types of trailer refrigerators
There are two types of trailer refrigerators – diesel-powered and electric-powered. Diesel-powered reefer trailers feature a diesel engine that powers the refrigeration unit, while electric-powered reefer trailers connect to a power source, such as a plug-in or generator. Both types maintain the required temperature inside the trailer, but they operate differently.
Diesel-powered reefer trailers are more suitable for long-distance transportation, as they can operate independently, without relying on a power source. However, they require regular maintenance and monitoring to ensure the engine and refrigeration system work efficiently. Electric-powered reefer trailers, on the other hand, are more environmentally friendly and are often used for short-distance transportation.
Refrigeration Units
Refrigeration units are the heart of trailer refrigerators. They are responsible for cooling the contents inside the trailer and maintain the desired temperature in a range between -20°C to +20°C. Refrigeration units are available in three types of cooling systems:
1. Direct Expansion (DX) System: This system uses a compressor, a condenser, and an expansion valve to cool the air inside the trailer. It’s the most common type used in reefer trailers.
2. Evaporative Cooling (EC) System: This system uses water to cool the air inside the trailer. It’s ideal for transporting fruits and vegetables that require high humidity.
3. Eutectic Plate System: This system uses a flat metal plate filled with a eutectic solution that freezes. The plate is then placed inside the trailer, and it gradually releases the cold temperature.
Design and Construction
Trailer refrigerators are constructed with high-quality materials that can withstand extreme temperatures and weather. The body is generally made of insulated aluminum panels that provide maximum insulation and durability. The floors are reinforced to carry heavy loads and are designed with non-slip surfaces for safety. The doors are equipped with air-locks to prevent cold air from escaping and dust from entering.
The trailer refrigerators are designed to have ample storage space to accommodate a variety of products. Several sections can be partitioned to store different products that require different temperatures. This allows for better organization of products and prevents cross-contamination.
Installation
Installation of a trailer refrigerator depends on the type of cooling unit and the type of trailer. Installing a diesel-powered refrigeration unit may require modifications to the trailer’s fuel tank, as it operates on diesel. Electric-powered refrigeration units are easier to install since they only require a power source. Trailer refrigerators must be installed correctly for safe and efficient operation.
Maintenance
Regular maintenance is critical to keep a trailer refrigerator working at peak efficiency. Diesel-powered refrigeration units require regular oil changes and other engine-related maintenance. Electric-powered refrigeration units require monitoring of the electrical components and the power source. Refrigeration units of both types should have regular maintenance checks to ensure they are working correctly.
When not in use, trailer refrigerators should be properly cleaned and sanitized to prevent contamination and mold growth. It’s essential to allow air to circulate inside the trailer to prevent humidity buildup and to ensure the interior is dry before storage.
Conclusion
Trailer refrigerators play a crucial role in maintaining the freshness of perishable goods during transport. They are designed to maintain a constant temperature and can accommodate multiple products with different temperature requirements. Trailer refrigerators are available in different sizes, with varying features and options, depending on the intended use. They offer a reliable, efficient, and safe method for transporting perishable goods over long distances. Regular maintenance should be performed to ensure the trailer refrigerator remains in optimal condition.
In conclusion, investing in a trailer refrigerator is a wise choice for anyone involved in the transportation of perishable goods. With the correct usage, installation, and regular maintenance, you can ensure that perishable products arrive at their intended destination fresh and free of spoilage.