A APU (auxiliary power unit) is a device found on semi trucks that provides power to the truck’s cab and other accessories without having to keep the truck’s engine running. It is an important part of fuel savings and emissions control for commercial vehicles. APUs are also known as idling elimination systems or idle reduction systems.
APUs are usually located on the back of the truck cab and work by providing heat, cooling, and electricity for cab comfort, air conditioning, lights, radio, and other items that would usually require the main engine to be running. APUs allow drivers to turn off their main engines while parked. This conserves fuel and reduces emissions since drivers no longer need to idle their trucks while they rest or wait in a parking lot.
APUs have many advantages such as reducing fuel costs, extending engine life by reducing wear on parts due to idling, and reducing harmful emissions by eliminating unnecessary idling. They also provide a more comfortable environment for drivers since they can run air conditioning or heating when needed without having to keep their engines running. APUs are becoming increasingly popular among semi-truck owners as they realize the benefits they can provide in terms of cost savings and environmental protection.
In addition to providing electricity, APUs also provide heating or cooling by running off either diesel fuel or electric power from an external source such as a generator or shore power connection. Diesel fueled APUs typically use diesel fuel from the truck’s main tank while electric powered ones use an external source of electricity such as shore power or an onboard generator.
Overall, APUs are becoming increasingly popular among semi-truck owners who want to conserve fuel and reduce emissions without compromising driver comfort. While there is some cost associated with purchasing an APU system for a truck, the long-term cost savings from reduced fuel consumption will more than make up for it in most cases.
In conclusion, APU stands for Auxiliary Power Unit, which is a device found on semi trucks that provides power to the truck’s cab and other accessories without having to keep the truck’s engine running. An APU helps conserve fuel costs and reduce emissions while providing a more comfortable environment for drivers since they can run air conditioning or heating when needed without having to keep their engines running.
