NDLI: Generalization of the heat transfer coefficient concept

Content Provider	IEEE Xplore Digital Library
Author	Mohamed-Nabil, S. Ossama, S.
Copyright Year	2008
Description	Author affiliation: French University in Egypt (Mohamed-Nabil, S.; Ossama, S.)
Abstract	The convection heat transfer coefficient h is a concept that is heavily used by all thermal engineers to solve practical problems. It allows them to approximately analyze complicated systems, without having to systematically perform detailed 3D simulations of all parts of any real system, which is always highly complicated. At least in the first design phase, engineers would appreciate a $handy¿ approximation, like that of h, which belongs to a larger category of what is called compact models. However, defining and using this quantity h for system simulation suffers from fundamental and conceptual problems that will be elucidated in this paper. Experienced thermal engineers know how to use it judiciously avoiding thus these problems, almost unconsciously. However as systems become more and more complicated, in terms of the number of its elements, automated calculations are becoming the rule. Hence, a$ black box¿ model of convection is needed for system level simulation and design, which would always give meaningful results in any situation. In this paper a solution is proposed based on the general theory of compact models, which has known recent breakthroughs leading to a general and rigorous theory. This theory has been applied so far for thermal modeling of conduction problems. It will be generalized here to convection problems. The result is a new concept that generalizes h such as to be able to correctly handle situations that were not adequately modeled before.
Starting Page	159
Ending Page	166
File Size	491052
Page Count	8
File Format	PDF
ISBN	9781424435760
DOI	10.1109/THETA.2008.5188777
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-12-17
Publisher Place	Egypt
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Analytical models Design engineering Temperature Thermal engineering Heat engines Thermal conductivity Performance analysis Heat transfer Research and development Finite difference methods
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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