Development of an Advanced Cooling System for Motors and Generators

Typical cooling systems for high power density system include forced air or liquid convection. Problems associated with these single-phase cooling systems are the large thermal gradients that develop along the length of motor and generator stators. These large thermal gradients lead to inefficient systems and decrease overall power density of the machine. Mainstream proposes to develop an advanced thermal epoxy encapsulant and two-phase isothermal cooling system that will allow for the development of even higher power density motors and generators. In conjunction with the two-phase cooling system, Mainstream Engineering proposes developing a new thermal epoxy encapsulant that has a higher thermal conductivity. Mainstream has conducted preliminary research that resulted in an 1100% increase in thermal conductivities for epoxy resins.