Experimental verification of the inverse method of the heat transfer coefficient calculation
Authors:
- Piotr Duda,
- Mariusz Konieczny
Abstract
The purpose of this work is to formulate a method which can be used to solve nonlinear inverse heat conduction problems and to calculate the heat transfer coefficient distribution on the unknown boundary. The domain under consideration is divided into control volumes in polar coordinates, and heat balance equations are written. Based on temperature transients measured in selected points on the outer surface, temperature values in other points of the domain are determined. Finally, the heat transfer coefficient distribution on the inner surface with the unknown boundary condition is calculated from the presented heat balance equation. The proposed inverse method was verified experimentally using a collector that is part of a semi-industrial laboratory system. This collector is a horizontal, cylindrical thick-walled tank with flat side walls with outlets that enable oil supply and removal. Each side wall has an additional connector to ensure venting. The calculations made it possible to identify the phenomena occurring inside the collector during the experiment. The transient temperature distribution identified by the proposed inverse method was verified by a comparison of the calculated and the measured temperature transients in points inside the collector wall. Very good agreement is observed between the calculated and the measured temperature transients, which confirms the correctness of the identification. This proposed inverse method of the temperature and the heat transfer coefficient calculation is fast enough to apply in online thermal state monitoring systems. The proposed algorithm presented in this paper can easily be implemented industrially. The purpose of this work is to formulate a method which can be used to solve nonlinear inverse heat conduction problems and to calculate the heat transfer coefficient distribution on the unknown boundary. The proposed inverse method was verified experimentally using a collector being a part of a semi-industrial laboratory system. Heat transfer analysis belongs to technical thermodynamic analysis in the scientific discipline of Mechanical Engineering.
- Record ID
- CUTb283cdf0c90a40909e945b2d7c206e41
- Publication categories
- ;
- Author
- Journal series
- Energies, ISSN , e-ISSN 1996-1073, Biweekly
- Issue year
- 2020
- Vol
- 13
- No
- 6
- Pages
- [1-16]
- Article number
- 1440
- Other elements of collation
- rys.; wykr.; Bibliografia (na s.) - 15-16; Bibliografia (liczba pozycji) - 20; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 13, Iss. 6
- Substantive notes
- This article belongs to the Section: Energy Fundamentals and Conversion
- Keywords in English
- inverse problems, control volume method, diagnostic system, experimental verification
- DOI
- DOI:10.3390/en13061440 Opening in a new tab
- URL
- https://www.mdpi.com/1996-1073/13/6/1440/htm Opening in a new tab
- Related project
- Opracowanie metod identyfikacji nieustalonych zjawisk cieplno-wytrzymałościowych. . Project leader at PK: , ,
Projects financed by NSC [Projekty finansowane przez NCN] - Language
- eng (en) English
- License
- Score (nominal)
- 140
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUTb283cdf0c90a40909e945b2d7c206e41/
- URN
urn:pkr-prod:CUTb283cdf0c90a40909e945b2d7c206e41
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.