UGC Approved Journal no 63975

ISSN: 2349-5162 | ESTD Year : 2014
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Published in:

Volume 5 Issue 7
July-2018
eISSN: 2349-5162

UGC and ISSN approved 7.95 impact factor UGC Approved Journal no 63975

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Published Paper ID:
JETIRA006031


Registration ID:
185418

Page Number

184-190

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Title

INVESTIGATIONS ON THERMO-HYDRAULIC PERFORMANCE DUE TO ARC ANGLE OF BROKEN ARC RIB COMBINED WITH STAGGERED RIB IN A RECTANGULAR DUCT OF SOLAR AIR HEATER

Abstract

In this investigation, thermo-hydraulic performance of rectangular ducts roughened with a new configuration of ‘broken arc rib combined with staggered rib piece’ on one broad wall is determined. The duct has aspect ratio (AR) of 12 and the Reynolds number (Re) ranged from 2000 to 16000. To simulate the indoor testing of solar air heater, the roughened side of rectangular duct is heated with constant heat flux electric heater while the remaining three walls are insulated. These boundary conditions correspond closely to those found in solar air heaters. Five broken arc rib combined with staggered rib roughened plates having arc angle of 15°, 30°, 45°, 60° and 75° have been tested. The relative staggered rib size, relative staggered rib position, relative roughness height, relative gap size, relative gap position and relative roughness pitch were fixed as 4, 0.6, 0.043, 1.0, 0.65 and 10 respectively. The thermo-hydraulic performance parameter based on equal pumping power (η), friction factor (f) and Nusselt number (Nu), are found to be more at arc angle (α) of 30° than at other arc angles. The highest value of thermo-hydraulic performance is 2.33 corresponding to Reynolds number of 12000.

Key Words

Solar air heater, staggered rib, arc-angle, Nusselt number, friction factor, rib roughness

Cite This Article

"INVESTIGATIONS ON THERMO-HYDRAULIC PERFORMANCE DUE TO ARC ANGLE OF BROKEN ARC RIB COMBINED WITH STAGGERED RIB IN A RECTANGULAR DUCT OF SOLAR AIR HEATER", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 7, page no.184-190, July-2018, Available :http://www.jetir.org/papers/JETIRA006031.pdf

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2349-5162 | Impact Factor 7.95 Calculate by Google Scholar

An International Scholarly Open Access Journal, Peer-Reviewed, Refereed Journal Impact Factor 7.95 Calculate by Google Scholar and Semantic Scholar | AI-Powered Research Tool, Multidisciplinary, Monthly, Multilanguage Journal Indexing in All Major Database & Metadata, Citation Generator

Cite This Article

"INVESTIGATIONS ON THERMO-HYDRAULIC PERFORMANCE DUE TO ARC ANGLE OF BROKEN ARC RIB COMBINED WITH STAGGERED RIB IN A RECTANGULAR DUCT OF SOLAR AIR HEATER", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 7, page no. pp184-190, July-2018, Available at : http://www.jetir.org/papers/JETIRA006031.pdf

Publication Details

Published Paper ID: JETIRA006031
Registration ID: 185418
Published In: Volume 5 | Issue 7 | Year July-2018
DOI (Digital Object Identifier):
Page No: 184-190
Country: -, -, - .
Area: Engineering
ISSN Number: 2349-5162


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