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July-2018
eISSN: 2349-5162
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Journal of Emerging Technologies and Innovative Research ( An International Scholarly Open Access Journal, Peer-reviewed, Refereed Journal )
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UGC Approved Journal no 63975(19)
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UGC and ISSN approved 7.95 impact factor UGC Approved Journal no 63975
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Published Paper ID:
JETIRA006031
Registration ID:
185418
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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
ISSN
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
Page No: 184-190
Country: -, -, - .
Area: Engineering
ISSN Number: 2349-5162
Publisher: IJ Publication
Published Paper URL :: https://www.jetir.org/view?paper=JETIRA006031
Published Paper PDF: https://www.jetir.org/papers/JETIRA006031
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