Structural Optimization and Experimental Investigation of the Organic Rankine Cycle for Solar Thermal Power Generation - Li, Jing
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Compared to the conventional Rankine cycle using water, the ORC can create efficient expansion at low power, avoid superheater and offer higher thermal efficiency in low temperature application. Small-scale ORCs from several kWe to a few hundred kWe offer great potential for meeting the residential demand on heat and power, and are of growing interest in scientific and technical fields. However, one critical problem is the decreased device efficiency and cost-effectiveness that arises when the ORC is scaled down.
In this thesis, the ORC is combined with low concentration-ratio solar…mehr

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Produktbeschreibung
Compared to the conventional Rankine cycle using water, the ORC can create efficient expansion at low power, avoid superheater and offer higher thermal efficiency in low temperature application. Small-scale ORCs from several kWe to a few hundred kWe offer great potential for meeting the residential demand on heat and power, and are of growing interest in scientific and technical fields. However, one critical problem is the decreased device efficiency and cost-effectiveness that arises when the ORC is scaled down.

In this thesis, the ORC is combined with low concentration-ratio solar collectors. The background, research trend, merits and importance of the solar ORC are described. To reduce the thermodynamic irreversibility and the cost of the system, three innovative solutions are proposed: solar ORC without heat transfer fluid (HTF), which employs two-stage collectors and heat storage units; hybrid solar power generation based on ORC and amorphous silicon cells; osmosis-driven solar ORC. Heat collection, storage and power conversion are optimized. The design, construction and test of a prototype are conducted, demonstrating the feasibility of the ORC for small-scale cogeneration. Special attention is paid to the variable operation and parameter design with respect to the condensation temperature.
Autorenporträt
Chengbin SHI received his Ph.D. in Metallurgical Engineering from University of Science and Technology Beijing in January 2013. He is currently a professor, deputy director of the Institute of Advanced Steel, University of Science and Technology Beijing. His research interests focus on inclusion control and clean steel technology, electroslag remelting, tool steel and heat-resistant steel. He serves as board member for 3 international journals Metallurgical and Materials Transactions B, International Journal of Minerals, Metallurgy and Materials and Journal of Iron and Steel Research International, and committee member of The Electrometallurgy Association, The Chinese Society for Metals. He was awarded three provincial and ministerial science and technology awards. He has authored over sixty papers, one monograph, and is the holder of eight patents. Jing LI received his Ph.D. in Ferrous Metallurgy from University of Science and Technology Beijing in 1999. He is currently a professor at State Key Laboratory of Advanced Metallurgy, director of the Institute of Advanced Steel, University of Science and Technology Beijing. He serves as secretary general of the Electrometallurgy Association, the Chinese Society for Metals. His research fields include electroslag remelting technology, advanced metallic materials development, secondary refining, application of rare earth in steel and oxide metallurgy, BOF/EAF steelmaking. He was awarded the First Metallurgical Advanced Youth Science and Technology Award, The Chinese Society for Metals. He has formulated 1 national standard for metallurgical industry. Professor Li was awarded 11 provincial and ministerial level of scientific and technological progress awards, authored 16 patents, published 2 monographs and over 100 publications in peer-review research journals. Shufeng YANG received his Ph.D. in Ferrous Metallurgy from University of Science and Technology Beijing in 2011. He is currently a professor and deputy director at State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing. He serves as recipient of outstanding youth science foundation of National Nature Science Foundation of China, key reader of Metallurgical & Materials Transactions B, youth editorial member of IJMMM and JISRI. His research interests focus on clean steel production, smelting and preparation of Ni-based superalloys.