Gas and fuel analysis for engineers A compend for those interested in the economical application of fuel Prepared especially for the use of students at the Massachusetts institute of technology . e being nostopcocks to stick fast. As the Bunte and Elliott apparatus are also usedfor this purpose, they too will be described. Fischers apparatus, using mercury, is rather toodifficult for the average engineer; HempePs or More-heads* apparatus for the analysis of illuminating-gasmight also be used; it is, however, not customary. ORSAT APPARATUS. Description.—The apparatus Fig. 8, is enclosed ina cas
Gas and fuel analysis for engineers A compend for those interested in the economical application of fuel Prepared especially for the use of students at the Massachusetts institute of technology . e being nostopcocks to stick fast. As the Bunte and Elliott apparatus are also usedfor this purpose, they too will be described. Fischers apparatus, using mercury, is rather toodifficult for the average engineer; HempePs or More-heads* apparatus for the analysis of illuminating-gasmight also be used; it is, however, not customary. ORSAT APPARATUS. Description.—The apparatus Fig. 8, is enclosed ina case to permit of transportation from place to place;furthermore, the measuring-tube is jacketed withwater to prevent changes of temperature affecting thegas-volume. The apparatus consists essentially ofthe levelling-bottle A, the burette B, the pipettesP\ P\ P\ and the connecting tube T.* No. 143 Lake Street, Chicago. 12 GAS AND FUEL ANALYSIS. Manipulation.— The reagents in the pipettes shouldbe adjusted in the capillary tubes to a point on thestem about midway between the top of the pipetteand the rubber connector. This is effected by open-ing wide the pinchcock upon the connector, the. Fig. 8. —Orsats Gas Apparatus. bottle being on the table, and very gradually lower-ing the bottle until the reagent is brought to the pointabove indicated. Six inches of the tubing used corre-spond to but cc, so that an error of half an inchin adjustment of the reagent is without influenceupon the accuracy of the result. The reagents havingbeen thus adjusted, the burette and connecting tubeare completely filled with water by opening d andraising the levelling-bottle. The apparatus is now ANALYSIS OF CHIMNEY-GASES. 13 ready to receive a sample of gas (or air for prac-tice). In case a flue-gas is to be analyzed d is con-nected with i, Fig. 2, A lowered and about 102 the gas forced over by opening h; or d maybe connected with aT joint in the gas-stream; theburette after filling is al
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