What powers the refrigeration system in trailer-mounted systems?

The refrigeration system in trailer-mounted systems is commonly powered by a separate diesel engine. This is because diesel engines are efficient and reliable, providing the necessary energy to operate the refrigeration unit independently from the main vehicle. This setup allows the trailer to maintain a consistent temperature for perishable goods while being transported, even when the main vehicle is not running.

While other power sources like electric generators or solar panels can be used in some refrigeration systems, they often do not provide the same level of continuous power and efficiency that a diesel engine can, particularly in demanding conditions. The use of a separate diesel engine ensures that the refrigeration system has a dedicated and robust power supply, allowing for extended use without relying on the vehicle's engine or battery.