Vessel Heat Bus

The heat bus is a network of pipes that distribute heat from the ship’s nuclear reactor to various systems that require it, such as the water treatment system. The heat bus is an essential part of the ship’s heating system, as it allows the ship to efficiently use the heat generated by the reactor to power various systems and keep the crew warm. This reduces power consumption and allows the ship to operate more efficiently.

The most notable systems powered by the heat bus are:

• Water treatment evaporator
• HVAC
• Water heating for showers and sinks

The heat bus gets its heat from a heat exchanger that sits inbetween the primary reactor coolant loop and the heat bus. The primary reactor coolant loop is a closed loop that circulates coolant through the reactor core to absorb heat generated by nuclear fission. The heat exchanger allows the heat from the primary loop to be transferred to the heat bus without mixing the two fluids, which is important for safety reasons.

The heat bus has a heat dump system that can be used to dissipate excess heat when heat demand is low or in the event of an emergency. The heat dump system consists of a heat exchanger that transfers heat from the heat bus to a seawater cooling system that ejects the heat into the ocean. The heat dump system is designed to be able to dissipate the full thermal output of the reactor, ensuring that the ship can safely manage its heat even in extreme conditions.