Energy Efficiency Comparsion in Boiling Water using Gas, Electric, and Induction Cooktops and Determination of Container Emissivity Coefficient
A W Hasanah 1, A S Sunarya 2, S Viridi 3

1 Department of Electrical Engineering, Faculty of Electric Power and Renewable Energy, Institut Teknologi PLN, Jakarta 11750, Indonesia

2 Department of Manufacturing Automation Engineering and Mechatronics, Politeknik Manufaktur Bandung, Bandung 40135, Indonesia

3 Department of Physics, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Bandung 40132, Indonesia

Abstract

A 1.315 kg stewpan is used to boil 1 kg water using three different type cooktops, i.e. gas, electrik, and induction. Power of the electric cooktop is 600 W, gas cooktop uses maximum setting (large burner in control knob), and induction cooktop has maximum power of 1200 W. We have observed to two different setting of power: 600 W and 1200 W. In the first setting we compare induction and electric cookops, while in the second one induction and gas cooktops are compared. We obtain energy efficiency about 67.24% and 56.2% for the first setting and 74.03% and 38.55%, which show that induction cooktop always gives the better performance compared to the other cooktops. Besides this we always investigate to energy leak from the stewpan to the environment through radiation, which should be the same since all four observation were using the same container to boil the water.

Keywords: gas cooktop, electric cooktop, induction cooktop, energy efficiency, radiation, emissivity.

Topic: Physics