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8.11) An oil stream is to be cooled from 200F to 100F by heating a kerosene stream from 80F to 160F. A fouling factor of 0.002hft2F/Btu is required for each stream, and fluid properties may be assumed constant at the values given below. Ten carbon steel hairpins are available on the company's used equipment lot. Each hairpin is 20ft long Heat Exchangers 99 with inner and outer pipes being 0.75 - and 1.5 -in. schedule 40 , respectively. Will these hairpins be adequate for this service? 8.11) An oil stream is to be cooled from 200F to 100F by heating a kerosene stream from 80F to 160F. A fouling factor of 0.002hft2F/Btu is required for each stream, and fluid properties may be assumed constant at the values given below. Ten carbon steel hairpins are available on the company's used equipment lot. Each hairpin is 20ft long Heat Exchangers 99 with inner and outer pipes being 0.75 - and 1.5 -in. schedule 40 , respectively. Will these hairpins be adequate for this service