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- W1972068893 abstract "In this paper, we propose an integrated system, consisting of a heliostat field, a steam cycle, an organic Rankine cycle (ORC) and an electrolyzer for hydrogen production. Some parameters, such as the heliostat field area and the solar flux are varied to investigate their effect on the power output, the rate of hydrogen produced, and energy and exergy efficiencies of the individual systems and the overall system. An optimization study using direct search method is also carried out to obtain the highest energy and exergy efficiencies and rate of hydrogen produced by choosing several independent variables. The results show that the power and rate of hydrogen produced increase with increase in the heliostat field area and the solar flux. The rate of hydrogen produced increases from 0.006 kg/s to 0.063 kg/s with increase in the heliostat field area from 8000 m2 to 50,000 m2. Moreover, when the solar flux is increased from 400 W/m2 to 1200 W/m2, the rate of hydrogen produced increases from 0.005 kg/s to 0.018 kg/s. The optimization study yields maximum energy and exergy efficiencies and the rate of hydrogen produced of 18.74%, 39.55% and 1571 L/s, respectively." @default.
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- W1972068893 date "2012-12-01" @default.
- W1972068893 modified "2023-10-18" @default.
- W1972068893 title "Energy and exergy analyses and optimization study of an integrated solar heliostat field system for hydrogen production" @default.
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- W1972068893 doi "https://doi.org/10.1016/j.ijhydene.2012.09.174" @default.
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