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CO2-TiCl4 working fluid for high-temperature heat source power cycles and solar application

D. Bonalumi, S. Lasala and E. Macchi

Renewable Energy, 2020, vol. 147, issue P3, 2842-2854

Abstract: The application of CO2 power cycles has proved to be particularly advantageous to exploit high-temperature heat sources (500–800 °C) in the case of available low-temperature heat sinks (15–25 °C). Otherwise, the efficiency of these cycles is strongly reduced when cold sink temperatures are higher than 25 °C. This is the case, for example, of solar applications installed in desert areas whose cold sink is represented by available hot air. Due to these high temperatures of the cold sink, CO2 is inevitably compressed in the supercritical phase thus preventing its more efficient pressurization in the liquid phase.

Keywords: Rankine cycle; Supercritical CO2; Molten salt; Liquid metal; TiCl4; Solar plant (search for similar items in EconPapers)
Date: 2020
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DOI: 10.1016/j.renene.2018.10.018

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