Conceptual Design and Performance Analysis of Waste Heat Recovery System for Intelligent Marine Diesel Engines. Part 2: Integrating Power Turbine into Whr Systems

Conceptual Design and Performance Analysis of Waste Heat Recovery System for Intelligent Marine Diesel Engines. Part 2: Integrating Power Turbine into Whr Systems

M. Zheshu Y. Dong 

School of Energy and Power Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, P.R. China

Page: 
121-130
|
DOI: 
https://doi.org/10.18280/ijht.300117
Received: 
N/A
|
Accepted: 
N/A
|
Published: 
30 June 2012
| Citation

OPEN ACCESS

Abstract: 

Intelligent Marine Diesel Engines have been state of the art main engines employed by value-added new ship including large container vessel. For intelligent marine diesel engines, it is clear that the very low exhaust gas temperature after the turbocharger has led the impracticable installation of traditional WHR systems—ordinary Rankine Cycle (RC) conceptional waste heat recovery system and Organic Rankine Cycle (ORC) conceptional waste heat recovery system—onboard. To deal with this dilemma, the way out is obtained from the increased exhaust gas temperature by integrating power turbine into WHR systems. Therefore, Thermo Efficiency System (TES system proposed by MAN B&W), TES-Organic Rankine Cycle (ORC) system and TES-Screw Expander Generator (SEG) system have been developed to improve such vessels energy efficiency. In this paper, thermodynamic models for TES, TES-ORC and TES-SEG matching 10S90ME of MAN B&W—a typical intelligent marine diesel engine—are derived and numerically calculated. Numerical results indicate that the above three systems are more feasible than traditional WHR systems. Though the total power yield of TES-ORC system is the highest, TES system and TES-SEG system are more advantageous for their system simplicity and safety consideration.

1. Introduction
2. Basic Performance Data of The Target Intelligent Marine Diesel Engine—10s90me Of Man B&W—After Adopting Tes Method
3. Results and Discussion
4. Conclusion
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