| Title |
Estimation of Uncertainty of Measurement on Thermal Conductivity Test for Building Insulation Materials |
| Authors |
Jeong. Young-Sun ; Choi. Gyoung-Seok ; Lee. Seung-Eon |
| Keywords |
Uncertainty of Measurement ; Error ; Thermal Conductivity ; Test ; Insulation Materials |
| Abstract |
To correspond mutual recognition between nations of industrial products, it is very important that we estimate and express an uncertainty of measurement for confidence of tests and measurements. The study and spread of an uncertainty of measurement are becoming in various fields, but it is very difficult to find such a case study in thermodynamic field. The purpose of this study is estimating uncertainty of measurement on thermal conductivity test for building insulation materials. The factors of uncertainty on thermal conductivity test in this study are ①insulation material thickness(d) factor, ②quantity of heat(Qt) factor, ③high surface temperature(Tu) factor, ④low surface temperature(Tl) factor, ⑤test environment(temp. & humidity) factor and ⑥test result distribution(5 times test). The result of estimation of uncertainty on thermal conductivity test is 0.034 ±0.00096[W/(m?K)] ( 95%, k=2 ) in this study. |