Induction heating device and power generation system

An induction heating device that heats a heating medium, comprising:

• a rotor having a rotation shaft;
• a heating part disposed to be opposed to said rotor at a distance;
• a magnetic flux generating part provided at said rotor to generate magnetic flux for said heating part;
• a magnetic flux guide part provided on an opposed surface side of the heating part that is opposed to the magnetic flux generating part to guide the magnetic flux from the magnetic flux generating part to the heating part;
• and
• a flow passage provided in said heating part to allow said heating medium to circulate, wherein
• said magnetic flux guide part
• includes magnetic substance parts formed of a magnetic material and insulator parts formed of a non-magnetic and electrically insulating material, and
• has a structure in which said magnetic substance parts and said insulator parts extend along a direction from said magnetic flux generating part to said heating part and are alternately layered along a circumferential direction of said heating part.