Thermo-Hydraulic Characteristics Evaluation of a Triangular Solar Air Heater Duct Having Transverse Ribs With Gaps: An Experimental StudySource: Journal of Solar Energy Engineering:;2024:;volume( 146 ):;issue: 004::page 41001-1DOI: 10.1115/1.4064190Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An experimental investigation is carried out to analyze the thermo-hydraulic characteristics of a triangular solar air heater duct having transverse ribs with gaps. The roughness parameters, such as non-dimensional pitch (P/e or P¯) and non-dimensional height (e/Dh or e¯) are kept in the range of 4.88–20 and 0.021–0.044, respectively. Reynolds number (Re) is kept in the range of 4000–18,000. Two and three gaps of each of 0.01 m are provided to each odd and even number ribs, respectively. Non-dimensional primary width (w1/W) and non-dimensional secondary width (w2/W) are kept constant at 0.29 and 0.4, respectively. A maximum heat transmission of 3.14 times that of the base model is achieved for the transverse ribs with gaps having non-dimensional pitch and height of 9.76 and 0.044, respectively, at Re = 18,000. In the parametric range, the highest friction factor of 3.88 times the base model is encountered for the non-dimensional pitch and height of 4.88 and 0.044, respectively, at Re = 4000. The highest thermal enhancement ratio of 2.31 is reported for the non-dimensional pitch and height of 9.76 and 0.044, respectively, at Re = 18,000. The correlation for the Nusselt number and friction factor is formulated, agreeing with experimental data within ±12% and ±8% deviation, respectively.
|
Collections
Show full item record
contributor author | Mahanand, Yadaba | |
contributor author | Senapati, Jnana Ranjan | |
date accessioned | 2024-04-24T22:45:49Z | |
date available | 2024-04-24T22:45:49Z | |
date copyright | 1/9/2024 12:00:00 AM | |
date issued | 2024 | |
identifier issn | 0199-6231 | |
identifier other | sol_146_4_041001.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl1/handle/yetl/4295834 | |
description abstract | An experimental investigation is carried out to analyze the thermo-hydraulic characteristics of a triangular solar air heater duct having transverse ribs with gaps. The roughness parameters, such as non-dimensional pitch (P/e or P¯) and non-dimensional height (e/Dh or e¯) are kept in the range of 4.88–20 and 0.021–0.044, respectively. Reynolds number (Re) is kept in the range of 4000–18,000. Two and three gaps of each of 0.01 m are provided to each odd and even number ribs, respectively. Non-dimensional primary width (w1/W) and non-dimensional secondary width (w2/W) are kept constant at 0.29 and 0.4, respectively. A maximum heat transmission of 3.14 times that of the base model is achieved for the transverse ribs with gaps having non-dimensional pitch and height of 9.76 and 0.044, respectively, at Re = 18,000. In the parametric range, the highest friction factor of 3.88 times the base model is encountered for the non-dimensional pitch and height of 4.88 and 0.044, respectively, at Re = 4000. The highest thermal enhancement ratio of 2.31 is reported for the non-dimensional pitch and height of 9.76 and 0.044, respectively, at Re = 18,000. The correlation for the Nusselt number and friction factor is formulated, agreeing with experimental data within ±12% and ±8% deviation, respectively. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | Thermo-Hydraulic Characteristics Evaluation of a Triangular Solar Air Heater Duct Having Transverse Ribs With Gaps: An Experimental Study | |
type | Journal Paper | |
journal volume | 146 | |
journal issue | 4 | |
journal title | Journal of Solar Energy Engineering | |
identifier doi | 10.1115/1.4064190 | |
journal fristpage | 41001-1 | |
journal lastpage | 41001-12 | |
page | 12 | |
tree | Journal of Solar Energy Engineering:;2024:;volume( 146 ):;issue: 004 | |
contenttype | Fulltext |