Open AccessStudy on dynamic measurement of fouling thermal resistance in a boiler
Author(s) -
Kairan Zou,
Ning Qiao,
jiaoling Wang,
Rong Si
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/721/1/012013
Subject(s) - fouling , thermal resistance , boiler (water heating) , materials science , heat transfer , thermal , dirt , environmental science , thermal transfer , composite material , process engineering , waste management , mechanics , thermodynamics , mechanical engineering , chemistry , engineering , biochemistry , physics , membrane , inkwell
A fouling thermal resistance method is introduced, for evaluating water quality in real time through measuring fouling thermal resistance on heat transfer surface. A simple device as a boiler heat transfer model was designed for measuring the deposition of dirt by the fouling thermal resistance method. The change in the thermal resistance of the fouling was measured with regard to samples with different water quality. The temperature-time curves were plotted with respect to the measured data of various temperatures over the whole process of temperature rise and fall to examine the feasibility of the method in evaluating the thermal resistance of the fouling contributed by the hardness of the water, finding that the fitted curve can characterize the fouling deposition of high hardness water. It has been shown that this experimental device can be improved further in the hope of being applied in practical use.