Kinetics of Vapour Diffusion and Condensation in Natural Porous Cellulosic Fibre Web

Table 2

Characteristic parameters of the paper webs moistening.

Fibre sample no.	ρ p	𝑥𝑟𝑎×10^3	d 75	v75	𝑌𝑒(75%)	d 97	v97	𝑌𝑒(97%)
	(g cm^−3)	(m)		(kg L/(kg S day))	(kg L/kg S)		(kg L/(kg S day))	(kg L/kg S)
I	0.356	0.54	2.5503	3.40	0.1013	0.6999	6.88	0.2595
II	0.320	0.59	3.3286	3.08	0.1022	0.7366	7.32	0.2374
III	0.295	0.685	1.1161	3.73	0.1092	0.7066	7.19	0.2654
IV	0.299	0.685	0.4936	3.91	0.1051	0.7688	6.93	0.2678
V	0.321	0.6	0.6410	3.98	0.1105	0.6947	7.30	0.2657
VI	0.396	0.525	1.5485	2.44	0.0739	0.7724	5.12	0.1778
VII	0.362	0.59	0.4040	3.21	0.1029	0.6812	6.14	0.2158
VIII	0.322	0.63	1.8553	4.01	0.1224	0.6992	8.15	0.2763
IX	0.319	0.6	0.7419	4.03	0.1207	0.7370	7.55	0.2687
X	0.203	0.945	1.1401	4.69	0.1421	0.7211	9.08	0.2903
XI	0.336	0.6	2.2409	3.72	0.1117	0.6740	7.80	0.2936

Subscripts 75 and 97 relate to relative humidity of 75% and of 97%, respectively.