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Energies 2016, 9(8), 636; doi:10.3390/en9080636

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

1
Department of Electronic Engineering and Communications, Universidad de Zaragoza, Zaragoza 50018, Spain
2
Department of Applied Physics, Universidad de Zaragoza, Zaragoza 50009, Spain
3
B/S/H/ Home Appliances Group, Induction Division, Zaragoza 50016, Spain
Current address: Universidad de Zaragoza, Maria de Luna, 1, Zaragoza 50018, Spain.
These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Academic Editor: K.T. Chau
Received: 13 May 2016 / Revised: 15 July 2016 / Accepted: 29 July 2016 / Published: 12 August 2016
View Full-Text   |   Download PDF [1279 KB, uploaded 12 August 2016]   |  

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. View Full-Text
Keywords: efficiency measurement; induction heating; efficient power transfer; measurement station efficiency measurement; induction heating; efficient power transfer; measurement station
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Serrano, J.; Acero, J.; Alonso, R.; Carretero, C.; Lope, I.; Burdío, J.M. Design and Implementation of a Test-Bench for Efficiency Measurement of Domestic Induction Heating Appliances. Energies 2016, 9, 636.

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