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http://dx.doi.org/10.5916/jkosme.2015.39.7.722

A study on an instantaneous angular velocity and torque fluctuation for marine diesel engine  

Jung, Gyun-sik (Department of Marine Engineering, Korea Maritime and Ocean University)
Lee, Ji-woong (Depratment of Marine Engineering, Korea Institute of Maritime and Fisheries Technology)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.39, no.7, 2015 , pp. 722-728 More about this Journal
Abstract
The demand for shipboard energy management is expected to gradually increase based on ship energy efficiency management plans (SEEMPs), which have been in use since January 1, 2013. Therefore, the fuel consumption of the main engine, which occupies the greatest portion of the energy used, along with elements related to the engine power, should be strictly monitored. There are many different methods for indicating the engine power. However, this study performed an experiment to monitor the status of a ship's engine power in real time using an encoder and a proximate switch, which are economical to purchase and easy to install. In the experiment, the angular velocity during one cycle of a two-stroke low-speed engine was measured, and the measured data were converted to the torque fluctuation. The angular velocity during an abnormal firing condition in the cylinder was also measured, and the torque fluctuation as a result of a misfire was considered. The results were compared with sea trial data to determine the reliability. In this study, the status of the engine power was determined using the torque fluctuation of the main engine in an operating ship.
Keywords
Instantaneous angular velocity; Torque fluctuation; Power monitoring; Marine diesel engine; Cylinder pressure;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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