Fluence Rate in UV Photoreactor for Disinfection of Water: Isotropically Radiating Cylinder

Table 1

The values of fluence rate. The transmittance of 10 mm thick water layer is 60%.

mm	[mm]	The ray-trace procedure	The integration by the Simpson method			The integration by the Chebyshev method
		[m^−1]	[m^−1]	[m^−1]	[m^−1]	[m^−1]	[m^−1]
−16.0	5.0	11.199	11.197	11.143	0.054	11.143	0.054
−16.0	10.0	11.373	11.358	11.143	0.215	11.143	0.215
−16.0	15.0	11.712	11.627	11.143	0.484	11.143	0.484
−21.0	5.0	6.370	6.370	6.359	0.011	6.371	0.012
−21.0	10.0	6.406	6.404	6.359	0.046	6.371	0.046
−21.0	15.0	6.466	6.462	6.359	0.103	6.371	0.104
−26.0	5.0	3.854	3.851	3.851	0.001	3.863	0.001
−26.0	10.0	3.854	3.854	3.851	0.003	3.863	0.003
−26.0	15.0	3.854	3.857	3.851	0.007	3.863	0.007
−31.0	5.0	2.424	2.422	2.424	−0.002	2.434	−0.002
−31.0	10.0	2.416	2.416	2.424	−0.008	2.434	−0.008
−31.0	15.0	2.404	2.406	2.424	−0.017	2.434	−0.017
−36.0	5.0	1.565	1.566	1.568	−0.002	1.575	−0.002
−36.0	10.0	1.559	1.559	1.568	−0.009	1.575	−0.009
−36.0	15.0	1.546	1.547	1.568	−0.021	1.575	−0.021
−41.0	5.0	1.033	1.033	1.035	−0.002	1.040	−0.002
−41.0	10.0	1.027	1.027	1.035	−0.008	1.040	−0.008
−41.0	15.0	1.016	1.017	1.035	−0.018	1.040	−0.018