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ADVANCED LOW PRESSURE CYCLE FOR CONCENTRATED SOLAR POWER GENERATION

Garg, Pardeep and Krishna, Sriram Hebbalguppe and Kumar, Pramod and Conboy, Thomas and Ho, Clifford (2014) ADVANCED LOW PRESSURE CYCLE FOR CONCENTRATED SOLAR POWER GENERATION. In: ASME 8th International Conference on Energy Sustainability, JUN 30-JUL 02, 2014, Seaport World Trade Ctr, Boston, MA.

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Abstract

Turbine inlet pressures of similar to 300 bar in case of CO2 based cycles call for redesigning the cycle in such a way that the optimum high side pressures are restricted to the discharge pressure limits imposed by currently available commercial compressors (similar to 150 bar) for distributed power generation. This leads to a cycle which is a combination of a transcritical condensing and a subcritical cycle with an intercooler and a bifurcation system in it. Using a realistic thermodynamic model, it is predicted that the cycle with the working fluid as a non-flammable mixture of 48.5 % propane and rest CO2 delivers similar to 37.2 % efficiency at 873 K with a high and a low side pressure of 150 and 26 bar respectively. This is in contrast to the best efficiency of similar to 36.1 % offered by a transcritical condensing cycle with the same working fluid at a high side pressure of similar to 300 bar

Item Type: Conference Proceedings
Additional Information: Copy right for this article belongs to the AMER SOC MECHANICAL ENGINEERS, THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
Department/Centre: Division of Mechanical Sciences > Mechanical Engineering
Depositing User: Id for Latest eprints
Date Deposited: 15 Oct 2015 06:54
Last Modified: 15 Oct 2015 06:54
URI: http://eprints.iisc.ac.in/id/eprint/52572

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