Finding the Ideal Heating Element

Yurteri, Kaan (2011) Finding the Ideal Heating Element. Other thesis, TED ANKARA COLLEGE FOUNDATION HIGH SCHOOL.

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This essay's main aim is to find an ideal resistance of the heating element and voltage for a simple water boiling kettle, if there exists, working under alternating current. By adjusting the size of the nichrome wire, which was selected as the heating element after research, the resistance of the heating element will be adjusted to desired values by changing its length while its resistance is measured by an ohmmeter. Resistances are to be 6Ω, 8Ω, 10Ω, 12Ω and 15Ω since this is the range of which commercial kettles' heating elements have. After all desired wires are achieved, these will then be put into the prepared circuit and be put under alternating current under different voltages. The voltages to be used are 200V, 220V, 230V and 240V because these voltages are also the range of which commercial kettles work under. When the circuit was completed, 0.5L of tap water started to heat up from the initial 20oC to the 100oC boiling point of the water. Using this method is a simple and effective way to determine an ideal heating element for a kettle in terms of greatest power output, which is the main goal of this essay. The experiment's resulting data showed that when the resistance of the heating element is equal to the total resistance of the circuit, which was taken as the internal resistance of the power source, the power output was maximum. This result proved to be correct through calculations based on the ohm's law and was further proven when the time required for each resistance value to heat water up to its boiling point, also was the shortest. Under the controlled variables of this essay, finding an ideal resistance value for the heating element is possible.

Item Type: Thesis (Other)
Additional Information: Supervisor: Özay Atay IB Notu: B
Uncontrolled Keywords: Physics, heating element, ideal resistance value
Subjects: Q Science > QC Physics
Depositing User: Kamil Çömlekçi
Date Deposited: 18 Jun 2011 08:59
Last Modified: 12 Apr 2019 10:55

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