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Numerical Investigation of Solar Air Heater Duct with Square Transverse and Inclined Ribs

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Advances in Fluid and Thermal Engineering

Part of the book series: Lecture Notes in Mechanical Engineering ((LNME))

Abstract

A numerical investigation has been carried out in order to investigate the effect of artificial roughness on heat transfer coefficient and pressure loss of air flow through an asymmetrically heated rectangular solar air heater duct with constant heat flux condition on absorber plate. Reynolds number is varied from 3000 to 15000. Artificial roughness in the form of transverse and inclined ribs is applied to the surface of the absorber plate. Heat transfer coefficient, friction factor and thermo-hydraulic performance parameter (THPP) are calculated for the range of roughness parameters; relative roughness pitch (P/e) from 11 to 25 at constant relative roughness height (e/D) of 0.8. RNG k- ε turbulence model has been selected for CFD simulation. Artificially roughened surface increased heat transfer coefficient at the expense of increased pressure loss of air flow through the duct.

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Author information

Authors and Affiliations

  1. Mechanical Engineering Department, Manipal University Jaipur, Jaipur, India

    Gaurav Lad, Nikhil Raghuvanshi, Pranshu Mehrotra & Ankur Srivastava

Authors
  1. Gaurav Lad
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  2. Nikhil Raghuvanshi
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  3. Pranshu Mehrotra
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  4. Ankur Srivastava
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Corresponding author

Correspondence to Pranshu Mehrotra .

Editor information

Editors and Affiliations

  1. Oak Ridge Institute for Science and Education, Oak Ridge, TN, USA

    Pankaj Saha

  2. Department of Mechanical Engineering, Indian Institute of Technology Delhi, New Delhi, Delhi, India

    P.M.V. Subbarao

  3. Department of Mechanical Engineering, Amity School of Engineering and Technology, Amity University Uttar Pradesh, NOIDA, Uttar Pradesh, India

    Basant Singh Sikarwar

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© 2019 Springer Nature Singapore Pte Ltd.

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Lad, G., Raghuvanshi, N., Mehrotra, P., Srivastava, A. (2019). Numerical Investigation of Solar Air Heater Duct with Square Transverse and Inclined Ribs. In: Saha, P., Subbarao, P., Sikarwar, B. (eds) Advances in Fluid and Thermal Engineering. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-13-6416-7_42

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  • DOI: https://doi.org/10.1007/978-981-13-6416-7_42

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-13-6415-0

  • Online ISBN: 978-981-13-6416-7

  • eBook Packages: EngineeringEngineering (R0)

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