June 18, 2006
June 18, 2006
June 21, 2006
Energy Conversion and Conservation
11.862.1 - 11.862.30
Laboratory-Scale Steam Power Plant Study – Rankine CyclerTM Effectiveness as a Learning Tool and a Comprehensive Experimental Analysis.
The Rankine Cycler™ steam turbine system, produced by Turbine Technologies, Ltd., is a table- top-sized working model of a fossil-fueled steam power plant. It is widely used by engineering colleges around the world.
This is the second paper about the Rankine Cycler, continuing the work started in 2004-05. In the first paper two important objectives were met. First, to determine the effectiveness of the Rankine Cycler as a learning tool, an indirect assessment was performed (i.e., a measure of student opinion). The results were positive. Second, a parametric study of the effects of component losses on Rankine Cycler thermal efficiency was performed. The results showed that the range of component losses used in the parametric study accurately reflect experimental thermal efficiencies, and pointed to future experimental work.
For this paper, two more objectives are met, contributing to the conclusions and recommendations from the first paper. First, a direct assessment (and further indirect assessment) of the Rankine Cycler as a learning tool is performed. Student’s laboratory reports were evaluated, so that ultimately the equipment can be used in the undergraduate curriculum in the best possible manner.
Inevitably, when a power generation plant is scaled-down and it has few efficiency-enhancing components (e.g. lack of feedwater heaters, etc.), energy losses in components will be magnified, substantially decreasing the cycle efficiency. Although the Rankine Cycler is a useful tool for teaching fundamentals of thermodynamics, fluid mechanics, heat transfer, and instrumentation systems in an undergraduate laboratory, a comprehensive analysis of the equipment had not been completed. This analysis can be useful to faculty and students who use the equipment and can also be useful to potential customers of Turbine Technologies. Therefore, as a second objective, faculty and students at two different universities have continued a comprehensive analysis of the Rankine Cycler. Significant experimental work was performed to characterize the Rankine Cycler. Multiple steady state runs were performed to determine the optimum operating point (i.e., load at which turbine/generator performance is optimum). Also, methods for accurately measuring steam flow were studied. Finally, future work is outlined to complete a characterization of the Rankine Cycler.
Gerhart, P., & Gerhart, A. (2006, June), Laboratory Scale Steam Power Plant Study Rankine Cycler Effectiveness As A Learning Tool And A Comprehensive Experimental Analysis Paper presented at 2006 Annual Conference & Exposition, Chicago, Illinois. https://peer.asee.org/388
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