Waste heat recovery from large marine engine block: energy, exergy, economic and environmental (4E) assessment

  1. Díaz Secades, Luis Alfonso 1
  2. González Rodríguez, Rubén 1
  3. Rivera Rellán, Noelia 1
  1. 1 Universidad de Oviedo
    info

    Universidad de Oviedo

    Oviedo, España

    ROR https://ror.org/006gksa02

Proceedings:
The 10th International Conference on Modeling and Diagnostics for Advanced Engine Systems (COMODIA 2022)

Publisher: The Japan Society of Mechanical Engineers (JSME)

Year of publication: 2022

Congress: International Conference on Modeling and Diagnostics for Advanced Engine Systems (COMODIA 2022) (10th. 2022. Sapporo, Japan)

Type: Conference paper

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Abstract

This study proposes an energy, exergy, economic and environmental (4E) method to examine the marine diesel engine, with emphasis on machines already in use. Real measurements and sampling of working fluids are taken in order to evaluate factual conditions of the engine studied. The analysis identifies and quantifies the amount of heat from the engine block and its attachments which is possible to recover, and looks into the cost reduction gained when this energy is reused. A cut in specific fuel consumption is directly reflected on the amount of CO2 and NOx emissions released and so are calculated.