Abstract
The paper presents a new integrated model for calculating the thermophysical properties of marine heavy fuel oil (HFO). The model considers HFO as an equivalent one-component heavy petroleum fraction with undefined composition and requires as input four values of fuel bulk properties commonly measured at fuel bunkering. Thus, the model accounts for any HFO quality stored onboard a vessel. The model predicts a large set of fuel properties relevant for engine computational fluid dynamics (CFD) studies, including temperature dependence. First, model validation is performed by means of measurements of a number of properties for different HFO qualities. Next, the model is applied to calculate the thermophysical properties of seven widely used marine heavy fuel grades as prescribed by current standards. Finally, the model is tested with CFD simulations of nonreactive HFO spray flow in a large constant-volume chamber, and the results are compared against recent experiments. Computational results are in very good agreement with experiments. Overall, the present model is deemed very promising, yielding a solid basis for CFD studies of HFO combustion in marine engines.
| Original language | English |
|---|---|
| Article number | 04018059 |
| Journal | Journal of Energy Engineering |
| Volume | 144 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 13 Aug 2018 |
Bibliographical note
Publisher Copyright:© 2018 American Society of Civil Engineers.
Funding
The first author would like to thank the DNV-GL Classification Society for financing his doctoral thesis project. Additional financial support in the frame of the EU Marie Curie ITN ECCO-MATE project (Grant No. 607214) is gratefully acknowledged. The authors are grateful to Prof. Ch. Karayanni and Associate Prof. D. Karonis of the Department of Chemical Engineering of the National Technical University of Athens for their technical support and for the experimental facilities made available to them. The support and provision of facilities by the research staff of the European Bioenergy Research Institute (EBRI) at Aston University via the BRISK initiative is also gratefully acknowledged. The authors would like to extend their gratitude toward Dr. G. Weisser of ABB Turbo Systems, Prof. K. Herrmann of the University of Applied Sciences Northeastern Switzerland, and Dr. B. von Rotz of Paul Scherrer Institute for their valuable support and fruitful discussions. Finally, the authors would like to thank Prof. N. Kyrtatos of the National Technical University of Athens and Prof. K. Boulouchos of ETH Zurich for their support and helpful discussions.
Keywords
- Computational fluid dynamics (CFD)
- Constant-volume spray chamber
- Heavy fuel oil
- Marine engines
- Thermophysical properties