Jan 16, 2019 · The individual gas-phase mass transfer coefficient is k Y’ a = 6000 kg/m 3 .h.∆Y’. The volumetric water-side heat transfer coefficient is given by h L a = 0.059 x L 0.51 x G S , in kcal/m 3 .h.K, where L and G S are mass low rates of water and air (dry basis). Determine (a) the dry air flow rate to be used, (b) the height of packing