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Exergy control for a flat-plate collector/Rankine cycle solar power system.

Author(s) : MANFRIDA G., KAWAMBWA S. J. M.

Type of article: Article

Summary

A performance study is presented of a Rankine organic cycle powered by a low temperature solar collector. A two-phase collector is considered where the heat transfer fluid is vaporized and its saturated vapour expands in a turbine according to a Rankine cycle. A modified form of the Bliss equation is used to model the thermal performance of the collector in terms of thermal efficiency versus DTI. The system is analyzed by second-law analysis, and it includes several exergy losses of different types which determine the overall exergy balance. Different working fluids are considered, and optimization to a certain extent is demonstrated from this point of view. A simulation over a typical sunny day in Florence, Italy, allows the calculation of the expected daily performance.

Details

  • Original title: Exergy control for a flat-plate collector/Rankine cycle solar power system.
  • Record ID : 1993-0490
  • Languages: English
  • Subject: General information
  • Source: J. sol. Energy Eng. - vol. 113 - n. 2
  • Publication date: 1991

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