Papers Published

1. Bejan, A., EXTRACTION OF EXERGY FROM SOLAR COLLECTORS UNDER TIME-VARYING CONDITIONS., International Journal of Heat and Fluid Flow, vol. 3 no. 2 (1982), pp. 67 - 72 [0142-727X(82)90002-9] .
   (last updated on 2007/04/08)

   Abstract:
   This paper examines the trade-off between the storage and the immediate use of solar exergy, with the objective of maximizing 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.

   Keywords:
   HEAT EXCHANGERS - Heat Transfer;