Temperature and Velocity Changes Across Tube Banks in One-directional and Bi-directional Flow Conditions

  • Hasbullah Nurjannah
    Fakulti Kejuruteraan Mekanikal (FKM), Universiti Teknikal Malaysia Melaka (UTeM) Centre for Advanced Research on Energy, Universiti Teknikal Malaysia Melaka (UTeM)
  • Fatimah Al Zahrah Mohd Saat
    Fakulti Kejuruteraan Mekanikal (FKM), Universiti Teknikal Malaysia Melaka (UTeM) Centre for Advanced Research on Energy, Universiti Teknikal Malaysia Melaka (UTeM) Green Design & Manufacture Research Group, Center of Excellence Geopolymer & Green Technology, Universiti Malaysia Perlis (UniMAP)
  • Fadhilah Shikh Anuar
    Centre for Advanced Research on Energy, Universiti Teknikal Malaysia Melaka (UTeM) Fakulti Teknologi Kejuruteraan Mekanikal dan Pembuatan (FTKMP), Universiti Teknikal Malaysia Melaka (UTeM)
  • Johari Dahlia
    Fakulti Kejuruteraan Mekanikal (FKM), Universiti Teknikal Malaysia Melaka (UTeM) Akademi Laut Malaysia (ALAM)
  • Mohamad Firdaus Sukri
    Fakulti Kejuruteraan Mekanikal (FKM), Universiti Teknikal Malaysia Melaka (UTeM) Centre for Advanced Research on Energy, Universiti Teknikal Malaysia Melaka (UTeM)

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説明

The back-and-forth movement of flow in oscillatory flow condition that can be found in blood flow, thermoacoustic energy system and ocean wave can be categorized as bi-directional flow condition and heat transfer in this flow condition is not well understood. This paper reports an experimental investigation that compares temperature and velocity values between the one-directional (the usual flow condition) and the bi-directional flow conditions. The experiment was done using thermoacoustic’s standing wave rig with two different drivers to drive the one-directional flow and bi-directional flow conditions in the test rig. Results, that were recorded using piezoresistive pressure sensor, type-K thermocouple and hotwire anemometer, indicate that care should be exercised when calculating heat transfer in bi-directional flow conditions as the temperature and velocity changes are different compared to the one-directional flow condition. Differences were recorded to be within the range of 77% for temperature and 59.5% for velocity, presumably due to the different behavior of forced and natural convection effect as flow conditions changed.

収録刊行物

  • Evergreen

    Evergreen 8 (2), 428-437, 2021-06

    九州大学グリーンテクノロジー研究教育センター

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詳細情報 詳細情報について

  • CRID
    1390290700483387776
  • NII論文ID
    120007099196
  • DOI
    10.5109/4480725
  • ISSN
    24325953
    21890420
  • HANDLE
    2324/4480725
  • 本文言語コード
    en
  • 資料種別
    journal article
  • データソース種別
    • JaLC
    • IRDB
    • Crossref
    • CiNii Articles
  • 抄録ライセンスフラグ
    使用可

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