Download EBOOK Steam Engines; A Thorough and Practical Presentation of Modern Steam Engine Practice PDF for free


Download EBOOK Steam Engines; A Thorough and Practical Presentation of Modern Steam Engine Practice PDF for free Category: Technology & Engineering
The author of the book: Llewellyn V Ludy
Format files: PDF, EPUB, TXT, DOCX
The size of the: 621 KB
Language: English
ISBN-13: 9781231166246
Edition: Rarebooksclub.com
Date of issue: 1 October 2012

Description of the book "Steam Engines; A Thorough and Practical Presentation of Modern Steam Engine Practice":

Excerpt: ...thus bringing the admission and expansion lines into the lower positions, as shown in dotted lines. The shaft governor is used almost universally on high-speed engines, and is shown in one form in Fig. 37 . It consists, in this case, of two weights W, hinged to the spokes of the wheel near the circumference 30 by means of suitable arms. Attached to the arms, as shown, are coil springs C. The ends of the arms beyond the weights are connected by means of levers L to the eccentric disk. When the engine speeds up, the weights tend to swing outward toward the PDF rim of the wheel, the amount of the movement being regulated by the tension of the springs C. As the arms move outward, the levers at the ends turn the eccentric disk on the shaft, the effect of which is to change the angle of advance and shorten the cut-off. When the speed falls below the normal, the weights move toward the center and the cut-off is lengthened. The effect of this form of governor on the diagram is shown in Fig. 39 . The full line represents the diagram at full load, and the dotted line when the ePub engine is under-loaded. Fig. 37. Shaft Governor for High-speed Engine Fig. 38. Action of Throttling Governor on Indicator Diagram Fig. 39. Effect of Shaft Governor on Indicator Diagram Fig. 40. Increasing Power of Engine by Condensing Fig. 41. Decreasing Steam Consumption by Condensing CHAPTER IV STEAM ENGINE ECONOMY Under the general heading of steam engine economy, such items as cylinder condensation, steam consumption, efficiency, ratio of expansion, under- and over-loading, condensing, etc., are treated. The principal waste of steam in the operation of an engine is due to condensation during the first part of the stroke. This condensation is PDF due to the fact that during expansion and exhaust the cylinder walls 31 and head and the piston are in contact with comparatively cool steam, and, therefore, give up a considerable amount of heat. When fresh steam is admitted at a high temperature, ..

Download EBOOK Steam Engines; A Thorough and Practical Presentation of Modern Steam Engine Practice PDF for free


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Llewellyn V Ludy

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Download EBOOK Steam Engines; A Thorough and Practical Presentation of Modern Steam Engine Practice PDF for free



Download EBOOK Steam Engines; A Thorough and Practical Presentation of Modern Steam Engine Practice for free

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