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Multi-level Coil Bundle for Efficient Cargo Tank Heating

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Abstract

This paper proposes and analyzes a novel heating coil bundle with the tubes arranged in a multi-level manner. The bundle generates a heated cargo large-scale circulation that enables a superposition of the circulation-driven forced convection on the buoyancy-driven natural convection, providing a more efficient mixed convection heat transfer mechanism. A simulation-based comparison of the proposed design and the conventional design is provided. The test case comprising an actual tank heating of an RMH 45 residual fuel oil by an 8-bar steam is simulated by a finite volume method and an OpenFOAM computational fluid dynamics software. The simulation results reveal that a 47.1% higher average heat transfer coefficient may be achieved, allowing a 32.0% reduction of the required heating coil area.

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Authors and Affiliations

  1. CADEA d.o.o., 21,000, Split, Croatia

    Gojko Magazinović

  2. Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, University of Split, 21,000, Split, Croatia

    Gojko Magazinović

Authors
  1. Gojko Magazinović
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Correspondence to Gojko Magazinović.

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Article Highlights

• The proposed design behaves significantly better than conventional design.

• Compact heating coil bundles reduce material, installation, and maintenance costs.

• The heated fluid cross-flow velocity through the bundle mainly determines the quantity of the heat transferred.

• The heating coil bundle position within the tank is of the utmost importance.

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Magazinović, G. Multi-level Coil Bundle for Efficient Cargo Tank Heating. J. Marine. Sci. Appl. 20, 467–476 (2021). https://doi.org/10.1007/s11804-021-00215-0

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  • DOI: https://doi.org/10.1007/s11804-021-00215-0

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