Microwave Heating

Microwave heating is a characteristic heating phenomenon that cannot be imitated by other heating methods; it can lead to internal heating, selective heating, formation of hot spots, local heating, superheating, and nonuniform heating—the penetration depth of microwaves is discussed. As well, a comparison is made in the use of microwaves with regard to heating efficiency, temperature control, environmental impact, low heat conduction sample, specimen geometry, and location of heat with other heat sources (electric furnace, gas, steam, high frequency, and infrared). If microwaves are used effectively, innovative heating can be executed by using microwaves. The chapter describes microwave heating mechanisms and microwave behavior toward liquids and solids, together with the characteristics of microwave heating against other heat sources and microwave proprietary heating phenomena based on specific cases. The coffee break talks about the engineering and style of microwave ovens.