Journal Of Thermal Science And Technology, cilt.27, sa.2, ss.1-6, 2007 (SCI-Expanded)
Abstract: In this study, exergy destruction is studied theoretically in a methodological manner for flow systems. The
equation of the rate of flow exergy destruction is derived beginning from the definition of exergy for forced
convective flow through a duct. The second law of thermodynamics is applied on convective systems to investigate
the irreversibilities which are the indicator of the destruction of available work named also as exergy destruction.
Explicit form of exergy destruction equation for incompressible Newtonian fluid flow in two-dimensional Cartesian
coordinates is presented as an example. A new term for dimensional quantitative results of flow exergy destruction,
named exergy destruction factor, is also introduced. The study, being important for all academic researchers as well
as engineers in efforts of research and development, will be helpful for understanding exergy destruction with the
physics of incompressible transient laminar convection in ducts. The study addresses the fundamentals of
thermodynamics.