Twentieth century hand-book for steam engineers and electricians, with questions and answers .. . ust line be? 25. If the exhaust line of a diagram is above theatmospheric line, what does it show? 26. Where should the exhaust line of a diagram froma condensing engine be? 27. How is the M. E. P. ascertained by the plani-meter? CHAPTER XI ENGINE OPERATION Engine operation — Simple engines — Compound engines—Con-densing and non-condensing engines—Condensers—Surfaceand jet condensers—Starting a condensing engine—Rules forestimating quantity of condensing water required—The gov-ernor—Speed regulati
Twentieth century hand-book for steam engineers and electricians, with questions and answers .. . ust line be? 25. If the exhaust line of a diagram is above theatmospheric line, what does it show? 26. Where should the exhaust line of a diagram froma condensing engine be? 27. How is the M. E. P. ascertained by the plani-meter? CHAPTER XI ENGINE OPERATION Engine operation — Simple engines — Compound engines—Con-densing and non-condensing engines—Condensers—Surfaceand jet condensers—Starting a condensing engine—Rules forestimating quantity of condensing water required—The gov-ernor—Speed regulation—How to keep a governor in goodworking condition—Lubrication of an engine—Runningover or under—Oiling the bottom guide on horizontalengines—Oiling the crank pin and main bearings—Shaft gov-ernors—Keying up an engine—What to do with a hot pillowblock—Feed water heaters—Economy of using exhaust steamfor heating feed water—Changing the speed of an engine. The following general suggestions regarding theoperation of engines are made with the object in view. CROSS COMPOUND DIRECT CONNECTED . CORLISS ENGINE, ALLISCHALMERS CO. of assisting young engineers or those whose experiencehas been limited to one or two types of engines. In many cases a young man starts in as a fireman in266 ENGINE OPERATION 267 a certain plant, and by industry and a strict devotionto duty becomes able in course of time to handle notonly the boilers successfully, but is at times requiredto run the engine in the absence of the engineer. Hethus acquires the ability to operate that particularengine, while at the same time he may be compar-atively ignorant of the peculiarities of other an engineer may have had years of experience withsimple non-condensing engines, but if called upon tooperate a compound condensing engine, he would findthat he had a great deal to learn. TANDEM COMPOUND ENGINE, BUCKEYE ENGINE CO. Engines may be divided into two general classes,viz., s
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