Measurement of gas calorific value using electric substitution method

Title
Measurement of gas calorific value using electric substitution method
Author(s)
임기원[임기원]전진용[전진용]이병준
Issue Date
201207
Publisher
SPRINGER
Citation
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, v.109, no.1, pp.487 - 494
Abstract
The calorific value is defined as the amount of heat which would be released by the complete combustion in air, in such a way that the pressure remains constant, all the combustion products except water are gaseous states and all the products returned to the temperature of the reactants. Recently, the mixed fuel like LPG, LNG, hythane, etc., become more popular. But the composition of these fuels changes with time and place where it was produced, which give direct impacts on the calorific value and performance of the heating apparatus. Therefore, the accurate measurements of the calorific value become an issue in the refinery industries and the national standardization fields. So, flame calorimeter was manufactured and characterized to measure calorific value of the gaseous fuel in the flow situations. Electric substitution method initiated by Alexandrov was adopted. Peltier elements were used to emit the heat supplied by a heater and a flame to the cooling water. Freon-11 was used as a heat carrier. To get the accurate calorific value by the experiments conducting in the normal laboratory conditions, correction methods were proposed to count variations in the experimental conditions such as temperatures, electric powers, etc. It was found out that the corrected calorific value of pure methane had 0.36% relative deviation to the standard value.
URI
http://hdl.handle.net/YU.REPOSITORY/27655http://dx.doi.org/10.1007/s10973-011-1688-1
ISSN
1388-6150
Appears in Collections:
공과대학 > 기계공학부 > Articles
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