(3): A collection of spherical particles with a density of 1200 kg/m3 has a number distribution given by n(d, ) =8x10 (d, -1) for particle diameters between 1 and 30 um, and is zero for all other particle sizes. In these relations, dp is in microns and n(d,) is in reciprocal microns. For particle diameters between 5 and 30 um the fractional collection efficiency in percent is given by na = 4d, -20, where do is in microns. Below 5 um the efficiency is zero, and above 30 um the efficiency is 100 percent. Determine the overall collection efficiency based on (a) number (b) mass. (3): A collection of spherical particles with a density of 1200 kg/m3 has a number distribution given by n(d, ) =8x10 (d, -1) for particle diameters between 1 and 30 um, and is zero for all other particle sizes. In these relations, dp is in microns and n(d,) is in reciprocal microns. For particle diameters between 5 and 30 um the fractional collection efficiency in percent is given by na = 4d, -20, where do is in microns. Below 5 um the efficiency is zero, and above 30 um the efficiency is 100 percent. Determine the overall collection efficiency based on (a) number (b) mass