NDLI: Empirical models for liquid metal heat transfer in the entrance region of tubes and rod bundles

Content Provider	Springer Nature Link
Author	Jaeger, Wadim
Copyright Year	2016
Abstract	Experiments focusing on liquid metals heat transfer in pipes and rod bundles with thermally and hydraulically developing flow are reviewed. Empirical heat transfer correlations are developed for engineering applications. In the developing regions the heat transfer is in-stationary. The heat transfer at the entrance is around 100 % higher due to the developing process including the lateral exchange of energy and momentum than for developed flow. Developing flow is not physically considered in the framework of system codes, which are used for thermal–hydraulic analysis of power and process plants with a multitude of components like pipes, tanks, valves and heat exchangers. Therefore, the application to liquid metal flows is limited to developed flow, which is independent of the distance from the flow entrance. The heat transfer enhancement in developing flows is important for the optimization of components like heat exchangers and helps to reduce unnecessary conservatism. In this work, empirical models are developed to account for developing flows in pipes and rod bundles. A literature review is performed to collect available experimental data for developing flow in liquid metal heat transfer. The evaluation shows that the length for pure thermally developing pipe flow is much larger (20–30 hydraulic diameters) than for combined thermally and hydraulically developing flow (10–15 hydraulic diameters). In rod bundles, fully combined developed flow is established after 30–40 hydraulic diameters downstream of the entrance. The derived empirical models for the heat transfer enhancement in the developing regions are implemented into a best estimate system code. The validation of these models by means of post-test analyses of 16 experiments shows that they are very well able to represent the heat transfer in developing regions.
Starting Page	1667
Ending Page	1684
Page Count	18
File Format	PDF
ISSN	09477411
Journal	Heat and Mass Transfer
Volume Number	53
Issue Number	5
e-ISSN	14321181
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2016-10-18
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Engineering Thermodynamics, Heat and Mass Transfer Industrial Chemistry/Chemical Engineering Thermodynamics
Content Type	Text
Resource Type	Article
Subject	Fluid Flow and Transfer Processes Condensed Matter Physics

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
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Saturated flow boiling heat transfer correlation for carbon dioxide for horizontal smooth tubes

Numerical heat and mass transfer analysis of a cross-flow indirect evaporative cooler with plates and flat tubes

Transient behaviour of deposition of liquid metal droplets on a solid substrate

The experimental investigation and thermodynamic analysis of vortex tubes

Numerical and experimental investigations of heat transfer enhancement in circular tubes with transverse twisted-baffles

Theoretical modeling and experimental analysis of solar still integrated with evacuated tubes

Experimental investigation of turbulent heat transfer performance in internal flow using a star shape cross sectioned twisted rod inserts

Convective heat transfer for viscoelastic fluid in a curved pipe

Experimental study on performance of celdek packed liquid desiccant dehumidifier

Empirical models for liquid metal heat transfer in the entrance region of tubes and rod bundles

Similar Documents

Saturated flow boiling heat transfer correlation for carbon dioxide for horizontal smooth tubes

Numerical heat and mass transfer analysis of a cross-flow indirect evaporative cooler with plates and flat tubes

Transient behaviour of deposition of liquid metal droplets on a solid substrate

The experimental investigation and thermodynamic analysis of vortex tubes

Numerical and experimental investigations of heat transfer enhancement in circular tubes with transverse twisted-baffles

Theoretical modeling and experimental analysis of solar still integrated with evacuated tubes

Experimental investigation of turbulent heat transfer performance in internal flow using a star shape cross sectioned twisted rod inserts

Convective heat transfer for viscoelastic fluid in a curved pipe

Experimental study on performance of celdek packed liquid desiccant dehumidifier

Empirical models for liquid metal heat transfer in the entrance region of tubes and rod bundles