Extraction of exergy from solar collectors under time-varying conditions

Maximization of energy delivery is the fundamental problem in solar collector thermal design. This paper examines the trade-off between the storage and the immediate use of solar exergy, with the objective of maximising the long-term exergy output from a solar collector installation. It is demonstrated that a trade-off exists, and that for maximum exergy output the collector and the collector-user interaction must conform to a well-defined pattern. It is also shown that the practice of operating collectors at constant temperature, regardless of time of day, is responsible for a sizeable and steady exergy loss. © 1982.

Duke Authors

Cited Authors

  • Bejan, A

Published Date

  • 1982

Published In

Volume / Issue

  • 3 / 2

Start / End Page

  • 67 - 72

International Standard Serial Number (ISSN)

  • 0142-727X

Citation Source

  • SciVal