The book How to Build Up Furnaces Efficiency was written by author Hays, Jos. W. (Joseph Weller), 1868- Here you can read free online of How to Build Up Furnaces Efficiency book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is How to Build Up Furnaces Efficiency a good or bad book?
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Assuming that you are a stranger to flue gas analysis and that your condi- tions are no better and no worse than the average, your percentage of CO 2 will be somewhere between 5 and 7. At 7 per cent, you are heating enough unnecessary excess air to keep a duplicate of your fur- nace plant going. At 5 per cent. CO2 34 Digitized by Google the excess would almost keep 2 addi- tional plants running; at 3 per cent., 4 plants; at 2 per cent, 6; and at i per cent., 14. I have seen furnaces operated wi...th less than i per cent. COj. Think of it! Knough air passed through one boiler furnace to keep fifteen of them going 1 The writer recently had occasion to visit a plant where conditions as to ex- cess air were about as bad as they make them. The gas analysis instrument showed about 2 per cent. COj, and enough obser- vations were taken to prove that this was a fair average under which the furnace was operating. It was a case of chain- grate stoker, a large boiler unit and very light summer load.
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