Development and Validation of Tandem Capillary Tubes Method to Measure Viscosity of Fluids
-
- MIYARA Akio
- Department of Mechanical Engineering, Saga University International Institute for Carbon-Neutral Energy Research, Kyushu University
-
- Alam Md. Jahangir
- Graduate School of Science and Engineering, Saga University
-
- YAMAGUCHI Kotaro
- Graduate School of Science and Engineering, Saga University
-
- KARIYA Keishi
- Department of Mechanical Engineering, Saga University
この論文をさがす
説明
<p>The viscosity of working fluids is an essential thermophysical property to design heat exchanger, efficient processes, equipment, and simulation. Different types of conventional methods are used to measure the viscosity of fluids. The capillary tube method is based on the theoretical principle, and it is a reliable method. Nevertheless, it is tough to measure viscosity precisely because of problems involved in an equipment. In the present study, the tandem capillary tube method is proposed, and reliability of this method is explained. In this method, the pressure changes at the ends of the tube can be canceled, and the viscosity can be easily obtained from the Hagen-Poiseuille equation. A way to eliminate an effect of diameter difference between tubes is also proposed. The reliability and accuracy have been verified by comparing the measured viscosities of R134a to the reference values calculated by REFPROP ver.9.1. Most of the data agreed well within ±1.5 % deviation. These results show the validity of the proposed equation in the present viscosity measurement system. The expanded uncertainty of viscosity measurement was estimated as 2.2 %.</p>
収録刊行物
-
- 日本冷凍空調学会論文集
-
日本冷凍空調学会論文集 36 (1), 1-, 2019
公益社団法人 日本冷凍空調学会
- Tweet
詳細情報 詳細情報について
-
- CRID
- 1390846609819780992
-
- NII論文ID
- 130007822767
-
- NII書誌ID
- AA11125910
-
- ISSN
- 2185789X
- 13444905
-
- NDL書誌ID
- 029619331
-
- 本文言語コード
- en
-
- データソース種別
-
- JaLC
- NDL
- CiNii Articles
-
- 抄録ライセンスフラグ
- 使用不可