Design and Implementation of a Test-Bench for Efficiency Measurement of Domestic Induction Heating Appliances

Javier Serrano, Jesús Acero, Rafael Alonso, Claudio Carretero, Ignacio Lope and José Miguel Burdío
Additional contact information
Javier Serrano: Department of Electronic Engineering and Communications, Universidad de Zaragoza, Zaragoza 50018, Spain
Jesús Acero: Department of Electronic Engineering and Communications, Universidad de Zaragoza, Zaragoza 50018, Spain
Rafael Alonso: Department of Applied Physics, Universidad de Zaragoza, Zaragoza 50009, Spain
Claudio Carretero: Department of Applied Physics, Universidad de Zaragoza, Zaragoza 50009, Spain
Ignacio Lope: B/S/H/ Home Appliances Group, Induction Division, Zaragoza 50016, Spain
José Miguel Burdío: Department of Electronic Engineering and Communications, Universidad de Zaragoza, Zaragoza 50018, Spain

Energies, 2016, vol. 9, issue 8, 1-11

Abstract: The operation of a domestic induction cooktop is based on the wireless energy transfer from the inductor to the pot. In such systems, the induction efficiency is defined as the ratio between the power delivered to the pot and the consumed power from the supplying converter. The non-transferred power is dissipated in the inductor, raising its temperature. Most efficiency-measuring methods are based on measuring the effective power (pot) and the total power (converter output). While the converter output power is directly measurable, the measurement of the power dissipation in the pot is usually a cause of inaccuracy. In this work, an alternative method to measure the system’s efficiency is proposed and implemented. The method is based on a pot with a reversible base to which the inductor is attached. In the standard configuration, the inductor is placed below the pot in such a way that the delivered power is used to boil water, and the power losses are dissipated to the air. When the pot base is flipped, the inductor is immersed into the water. In this case the losses in the inductor also contribute to heating up and boiling the water. The induction efficiency is calculated from the boiling rates in both configurations. A commercial inductor was tested under real working conditions with consistent results.

Keywords: efficiency measurement; induction heating; efficient power transfer; measurement station (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2016
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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