A refrigerated trailer, commonly known as a reefer trailer, is a type of semi-trailer that is specially designed to transport and deliver temperature-sensitive goods. These trailers are used to transport a variety of perishable items such as food, pharmaceuticals, and other temperature-sensitive products. The technology behind a refrigerated trailer is fascinating, and in this article, we’ll explore how this technology works to keep the goods inside fresh and unspoiled.
refrigerated trailers work by controlling the temperature and humidity levels inside the trailer to preserve the perishable products. These trailers come with advanced cooling systems, insulation, and specialized equipment that is designed to maintain a specific temperature range. The cooling system in a refrigerated trailer comprises of two components: the evaporator and the condenser.
The evaporator is placed inside the trailer, and it extracts heat from the interior by converting liquid refrigerant into gas. The gas is cooled down, and it repeats the entire cycle to maintain a continuous cooling effect. The condenser, on the other hand, is mounted on the rooftop, and it ejects the heat from the refrigerant to the outside environment.
The cooling system in a refrigerated trailer is powered by a diesel engine or an electric generator. These power units run continuously to ensure that the temperature remains at the desired level. The temperature range is usually set based on the products being transported in the trailer. For instance, fresh produce like fruits and vegetables require a temperature range of 1-5°C, while ice-cream and frozen food require a temperature range of -18°C.
refrigerated trailers also come equipped with state-of-the-art technology like telematics systems, temperature sensors, and GPS devices. These systems help fleet managers keep track of the temperature and humidity levels inside the trailer while en route. They also allow fleet managers to monitor the trailer’s location and ensure timely delivery to the intended destination.
The telematics systems in refrigerated trailers provide real-time data that is accessible from anywhere through secure cloud-based software. This software platform allows fleet managers to track the condition of all the trailers in their fleet. They can access detailed reports on the temperature, temperature setpoints, and other environmental data related to the trailer.
refrigerated trailers are also equipped with temperature sensors that are installed throughout the trailer to monitor the temperature at various points. These sensors provide a real-time view of the temperature to the truck driver and the fleet operator. Any deviation from the set temperature by the sensors is immediately alerted through a notification. This feature ensures that the goods inside the trailer are protected from spoilage or damage.
GPS devices in refrigerated trailers help fleet managers track the location of the trailer and its temperature status in real-time. They can also receive alerts when the trailer reaches its intended destination. This feature is particularly useful for high-value cargo or perishable goods as it ensures the product arrives at its destination in optimal condition.
To keep the temperature and humidity levels stable inside a refrigerated trailer, proper insulation is required. High-density foam insulation is commonly used to keep the interior temperature stable. The insulation helps keep the cooler air from escaping and prevents warm air from entering the refrigerated space.
Some refrigerated trailers also come equipped with curtain systems that help maintain the temperature by reducing the amount of cold air that escapes when the trailer doors are opened. These curtain systems are designed to replace the traditional trailer doors.
In conclusion, a refrigerated trailer is a highly sophisticated vehicle that is designed to transport perishable cargo. It is equipped with advanced cooling systems, temperature sensors, and GPS devices that help maintain the required temperature and humidity levels inside the trailer. The state-of-the-art technology in these trailers ensures that perishable goods such as food, medicine, and other sensitive products are transported safely and arrive at their destination in optimal condition. The technology in refrigerated trailers continues to evolve, and we can expect to see even more advanced features and improvements in the coming years.