The thermal diffusivity (alpha) of idli barter was determined experime
ntally assuming infinite slab geometry under transient heat transfer c
onditions. The value alpha of batter determined using batch (1.38 x 10
(-7) m(2) s(-1)) and continuous (1.1 x 10(-7) m(2) s(-1)) idli steamin
g units were compared with the value obtained using Riedel's equation
(1.42 x 10(-7) m(2) s(-1)) and Martens equation (1.47 x 10(-7) m(2) s(
-1)). (C) 1997 Elsevier Science Limited. All rights reserved.