Question

Water ackboard X C (L01, 2 Marks)-The following are heat loss data measured, collected and tabulated for What is the approximate boiler efficiency? (percentage, no decimals, no units) steam generator (Boiler) The Boler losses and their approximate locations are lustrated in the block diagram below Hoiler Loss source Value (%) 47 4.12 Loss due to dry flue gas (Sonsible heat) Loss due to hydrogen in fuel (H2) Loss due to moisture in fuel (H2 0) Loss due to moisture in air (H 2 0) Loss due to carbon monoxide (COTPartial combustion of C to CO) Loss due to surface radiation, convection and other unaccounted Other Losses due to unburnt ash 548 0 23 264 0 23 1.10 Steam Output 1. Dry Flue gas loss 2 H2 Josw 3 Meistare in foel 4 Mise i eo s 6. Surface loss 7.Fly ash loss Fuel Input, 100% Boiler Flue gas sample Air Bot ash lo os Jow The thermal officiency of the boler is (Percentage No decimals)

Answer 1

Let the Fuel input osses tn fuel Loss due to unsats fechrg burning f tueleg ihcomplete com bustron о? he chemico eumpesttren. heat, eg rodsoHos Wn ve ch on енс. Total lass A 21.35 21 .35 x Perc toge euz2aten ef uet Work preducad He at mput etftereney bortor Heat mpt Heat Input Q) SUsra Here 1.35 7 Atmespiere 7.65