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A New Accurate Model for Waste Heat Recovery System Using Power Turbine Generator: A New Approach to Shipboard Energy System
Author(s) -
Matsui Nobumasa,
Kurokawa Fujio,
Shiraishi Keiichi
Publication year - 2010
Publication title -
ieej transactions on electrical and electronic engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.254
H-Index - 30
eISSN - 1931-4981
pISSN - 1931-4973
DOI - 10.1002/tee.20597
Subject(s) - overshoot (microwave communication) , waste heat , dynamic simulation , transient (computer programming) , automotive engineering , turbine , power (physics) , diesel generator , engineering , diesel fuel , control theory (sociology) , computer science , simulation , mechanical engineering , electrical engineering , physics , heat exchanger , quantum mechanics , operating system , control (management) , artificial intelligence
The purpose of this paper is to present an accurate model of a waste heat recovery system using a power turbine generator (PTG) with respect to its dynamic characteristics. The PTG is the waste heat recovery type making use of the exhaust gas from the main shipboard diesel engines. However, with the PTG systems, the dynamic characteristics are not entirely clear. So, an accurate model is used to evaluate the safe operation of the PTG system. The simulation results are verified with a prototype constructed on the basis of simulation. As a result, in the transient response of the frequency, the frequency is overshot by 8% in both the simulated and measured models. Furthermore, in the startup process, the overshoot speed is 0.81 p.u. in the simulation and 0.83 p.u. in the measured models against 0.80 p.u. as per the design condition, at 100% output from the main diesel engine, which is considered as the most severe condition. The error between the overshoot speed in the simulated and measured data is less than 2%. The Instruments Society of America (ISA) Standard defines an error in dynamic plant simulation within 10%. Hence, it is confirmed that the proposed model has excellent property within standard. Copyright © 2010 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.