IDEAS home Printed from https://ideas.repec.org/a/gam/jsusta/v15y2022i1p753-d1021618.html
   My bibliography  Save this article

Influence of Exhaust Temperature and Flow Velocity of Marine Diesel Engines on Exhaust Gas Boiler Heat Transfer Performance

Author

Listed:
  • Dezhi Jiang

    (School of Engineering, Ocean University of China, Qingdao 266100, China)

  • Haoxian Yu

    (School of Engineering, Ocean University of China, Qingdao 266100, China)

  • Zhihan Wang

    (School of Engineering, Ocean University of China, Qingdao 266100, China)

  • Adam Glowacz

    (Department of Automatic Control and Robotics, Faculty of Electrical Engineering, Automatics, Computer Science and Biomedical Engineering, AGH University of Science and Technology, Al. A. Mickiewicza 30, 30-059 Krakow, Poland)

  • Grzegorz Królczyk

    (Department of Manufacturing Engineering and Automation Products, Opole University of Technology, 45-758 Opole, Poland)

  • Zhixiong Li

    (Department of Manufacturing Engineering and Automation Products, Opole University of Technology, 45-758 Opole, Poland)

Abstract

Due to the relatively cheap price of diesel, most Marine engines use diesel as Marine fuel, but its emissions contain a lot of carbon. To reduce carbon emissions, International Maritime Organization (IMO) has established an Energy Efficiency Design Index (EEDI) and Energy Efficiency Existing-Ship Index (EEXI). Currently, a popular way is to reduce EEDI by optimizing the heat transfer performance of exhaust gas boilers on new ships, but there is little research on the EEXI index of existing ships. For operating ships, the thermal conductivity of exhaust gas boiler materials and other parameters has been fixed, so the main factors affecting the heat transfer coefficient of the exhaust gas boiler are exhaust gas temperature and flow velocity. Therefore, this paper studies the influence of engine exhaust temperature and flow rate on boiler heat transfer coefficients and optimizes it to achieve the EEXI value required by IMO. Firstly, based on the conservation of mass and energy as the basic equation, a heat exchange model of the exhaust gas boiler is established by using the hybrid modeling method and lumped parameter method. Secondly, for the given boiler, since other parameters are basically unchanged, the input temperature and flow rate of the model are changed by the control variable method, and the temperature of the boiler outlet is simulated by the test algorithm. Through the simulation operation of an Aalborg OC-type boiler, the results show that when the exhaust gas flow velocity is 15 m/s, 17.2 m/s, 22.4 m/s and 25 m/s, respectively, the heat transfer coefficient at each flow velocity increases first and then slowly decreases with the increase of temperature, and there is an optimal temperature at each velocity, which is 230 °C, 227 °C, 225 °C and 224 °C, respectively. The innovation of this study lies in the research on the inlet temperature and flow rate of the exhaust gas boiler of the operating ship based on the EEXI, and the relevant results are obtained, which provides theoretical guidance for the operation management of the exhaust gas boiler of the operating ship.

Suggested Citation

  • Dezhi Jiang & Haoxian Yu & Zhihan Wang & Adam Glowacz & Grzegorz Królczyk & Zhixiong Li, 2022. "Influence of Exhaust Temperature and Flow Velocity of Marine Diesel Engines on Exhaust Gas Boiler Heat Transfer Performance," Sustainability, MDPI, vol. 15(1), pages 1-15, December.
    • Handle: RePEc:gam:jsusta:v:15:y:2022:i:1:p:753-:d:1021618
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/2071-1050/15/1/753/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/2071-1050/15/1/753/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Zhang, Wei & Wang, Suilin & Mu, Lianbo & Jamshidnia, Hamid & Zhao, Xudong, 2022. "Investigation of the forced-convection heat-transfer in the boiler flue-gas heat recovery units employing the real-time measured database," Energy, Elsevier, vol. 238(PA).
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Lianbo Mu & Suilin Wang & Guichang Liu & Junhui Lu & Yuncheng Lan & Liqiu Zhao & Jincheng Liu, 2023. "On-Site Experimental Study on Low-Temperature Deep Waste Heat Recovery of Actual Flue Gas from the Reformer of Hydrogen Production," Sustainability, MDPI, vol. 15(12), pages 1-19, June.
    2. Zhao, Qiaonan & Yang, Qiguo & Xu, Hongtao & Jiao, Anyao & Pan, Donghui, 2023. "Experimental study on pollutant emission characteristics of diesel urea-based selective catalytic reduction system based on corrugated substrate," Energy, Elsevier, vol. 267(C).
    3. Mu, Lianbo & Wang, Suilin & Lu, Junhui & Liu, Guichang & Zhao, Liqiu & Lan, Yuncheng, 2023. "Effect of flue gas condensing waste heat recovery and its pressure drop on energy saving and carbon reduction for refinery heating furnace," Energy, Elsevier, vol. 279(C).
    4. Mu, Lianbo & Wang, Suilin & Lu, Junhui & Li, Congna & Lan, Yuncheng & Liu, Guichang & Zhang, Tong, 2024. "Effect of hydrogen-enriched natural gas on flue gas waste heat recovery potential and condensing heat exchanger performance," Energy, Elsevier, vol. 286(C).

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jsusta:v:15:y:2022:i:1:p:753-:d:1021618. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.