DocumentCode :
1159839
Title :
Steady-State and Dynamic Performance of an Otec Plant
Author :
Kayton, M.
Author_Institution :
Systems Engineering and Integration Division TRW Systems and Energy
Issue :
3
fYear :
1981
fDate :
3/1/1981 12:00:00 AM
Firstpage :
1148
Lastpage :
1153
Abstract :
Objectives of the computer simulations of TRW´s designs for the OTEC PSD-1 and PSD-ll plants were: 1) determine steady-state performance of plants at nominal and off-nominal conditions; 2) design steady-state control system; and 3) determine dynamic power response caused by ship´s heave. The simulations were constructed of modules that modelled the heat exchangers, turbine, ammonia pumps, water pumps, pipes, valves, and fittings in the steady-state, using a relaxation method. A simpler dynamic program, considering only the oscillatory heave motion of the ship and plant variables affected by ship motion using numerical integration, led to a quantitative understanding of the off-nominal system performance. Control mechanizations were developed for each plant that permit optimum full-power operation and economical part-power throttling of the plant. After being validated by small-scale test data and being updated to reflect new design information, the simulation models will be used to predict the performance of larger plants.
Keywords :
Computational modeling; Computer simulation; Control system synthesis; Heat pumps; Marine vehicles; Power system modeling; Predictive models; Steady-state; Turbines; Water heating;
fLanguage :
English
Journal_Title :
Power Apparatus and Systems, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9510
Type :
jour
DOI :
10.1109/TPAS.1981.316581
Filename :
4110709
Link To Document :
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