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Comparison of optimized roughness parameters of some artificially roughened solar air heaters

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Abstract

In this study, theoretical investigation derived from experimental correlations and the artificial bee colony optimization method are used to determine the optimum geometrical parameters which maximize the termohydraulic efficiency of some artificially roughened solar air heaters. Nine different roughness types are considered, i.e., transverse wedge-shaped rib roughness, protrusion roughness, multiple v-ribs roughness, rib-grooved roughness, metal grit ribs roughness, compound turbulators roughness, v-shaped rib roughness, arc-shaped wire roughness, and discrete v-down ribs roughness. The effects of the artificial roughness element parameters on the best thermal performance and the thermohydraulic performance are compared. Optimum results are obtained with multiple v-ribs roughness for the low mass flow rate (MFR = 0.1 kg/s) and with protrusion roughness for the high mass flow rate (MFR = 0.5 kg/s). Optimum roughness parameters and corresponding thermal and thermohydraulic efficiencies are tabulated for each solar collector type. As expected, increased roughness geometry leads to higher pressure loss and reduces thermohydraulic efficiency.

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Authors and Affiliations

  1. Vocational School, Aǧrı İbrahim Çeçen University, Merkez-Aǧrı, Aǧrı, 04100, Turkey

    Cihan Yıldırım

  2. Civil Engineering Department, Akdeniz University, Yerleşke, Antalya, 07058, Turkey

    Ibrahim Aydoǧdu

Authors
  1. Cihan Yıldırım
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  2. Ibrahim Aydoǧdu
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Corresponding author

Correspondence to Cihan Yıldırım.

Additional information

Cihan Yıldırım completed his Ph.D. at Engineering Science Department Middle East Technical University. He is working as an Associate Professor at Aǧrı İbrahim Çeçen University. He is currently working on solar energy conversion devices and desalination systems.

Ibrahim Aydoǧdu completed his Ph.D. at Engineering Science Department Middle East Technical University. He is working as an Associate Professor at Civil Engineering Department Akdeniz University. He is currently working on structural optimization and steel structures.

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Yıldırım, C., Aydoǧdu, I. Comparison of optimized roughness parameters of some artificially roughened solar air heaters. J Mech Sci Technol 36, 5267–5280 (2022). https://doi.org/10.1007/s12206-022-0939-3

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  • DOI: https://doi.org/10.1007/s12206-022-0939-3

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