Thermal management systems and methods thereof for marine vessels

A thermal management system for a marine vessel, the thermal management system comprising:

• a first closed loop circuit in which a first heat transfer fluid is circulated;
• a first refrigeration component cooled or heated by the first heat transfer fluid and configured to cool or heat air within a compartment on the marine vessel;
• a first open loop circuit;
• a first pump configured to pump water from a body of water in which the marine vessel is operating, through the first open loop circuit, and back to the body of water;
• a first heat exchanger configured to exchange heat between the first heat transfer fluid in the first closed loop circuit and the water in the first open loop circuit;
• a second closed loop circuit in which a second heat transfer fluid is circulated;
• a drive system with one or more components which are cooled or heated by the second heat transfer fluid;
• and
• a second heat exchanger configured to exchange heat between the second heat transfer fluid in the second closed loop circuit and the first heat transfer fluid in the first closed loop circuit.