Abstract
This paper proposes and implements an all-in-one induction heating system, which can accommodate both pan-shaped and wok-shaped utensils. Traditionally, the pan is heated by a planar induction cooktop while the wok is heated by a curved induction cooktop. In this paper, both magnetic inductive coupling and magnetic resonant coupling are utilized to achieve excellent heating performance of the wok based on a planar primary coil. The key is to flexibly employ a detachable frustum coil for heating the wok. Specifically, the theoretical models of the proposed induction heating system with and without using the frustum coil are derived to analyze the proposed system. Computational simulation results of the magnetic and thermal fields of the proposed system are provided to elaborate the heating performance of the wok. A 1500 W prototype is designed and built. The calculated, simulated and experimental results are all in good agreement, which validate the feasibility of the proposed induction heating system well.
Highlights
At present, energy crises and global warming have attracted urgent research attentions worldwide.Traditionally, heat energy is produced by burning combustible substances, which unavoidably leads to severe energy wastage and environmental deterioration
By adopting the charge small electronics such as hearing aids and an effective method to calculate the magnetic field in magnetic resonance coupling (MRC) mechanism [21], selective induction heating can be achieved by regulating the operating the air was proposed in [20]
When there is no frustum coil attached beneath the wok, it can be observed that a amount of magnetic flux does notdoes couple with the outer the wok the corresponding large amount of magnetic flux not couple withpart the of outer partowing of thetowok owing to the large air gap
Summary
Energy crises and global warming have attracted urgent research attentions worldwide. Apart from those pan-shaped vessels, wok-shaped vessels can be inductively heated by utilizing by adopting double-layer coils while operating at a constant resonant frequency [14]. Apart from those variable turn pitch coils to boost the heating performance [15]. By adopting the charge small electronics such as hearing aids and an effective method to calculate the magnetic field in MRC mechanism [21], selective induction heating can be achieved by regulating the operating the air was proposed in [20].
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