An analytical and comparative study of the charging and ...
For considering this effect of the problem inside the solution method, the efficiency of the fins is determined as below (Bergman and Incropera, 2011): (3.11) η f. c t = q f t q max t (3.12) q f t = h pcm, c t P f, c k f, c A c, c θ t c o s h m h f, c-1 s i n h m h f, c and (3.13) q max t = h pcm t A f, c θ t where θ t = (T hpc …