where ^da1 and y/ da 2 were the specific exergy transfers at inlets and outlets, respectively; ha, s0 denoted the specific enthalpy and specific entropy at the temperature of dead state (T0), respectively; h1 and s1 denoted the specific enthalpy and the specific entropy at the temperature of drying air entering the dryer (Tda1), respectively; h2 and s2 denoted the specific enthalpy and the specific entropy of drying air at the temperature of the drying air exiting, respectively. The potential and kinetic exergies were negligible.
The heat transfer rate due to phase change was (Syahrul et al., 2002)
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Do we really want the one thing that gives us its resources unconditionally to suffer even more than it is suffering now? Nature, is a part of our being from the earliest human days. We respect Nature and it gives us its bounty, but in the recent past greedy money hungry corporations have made us all so destructive, so wasteful.