Publisher's Synopsis
Excerpt from The Theta-Phi Diagram Practically Applied to Steam, Gas, Oil,& Air Engines
IN the following pages an attempt has been made to present in as simple and practical a manner as possible, the use of the temperature entropy diagram and the various methods of drawing it for different heat motors. That the subject presented peculiar difficulties, because of its unfitness for presentation in a popular manner, Will 'readily be granted but I venture to think that one of the principal reasons for the lack of knowledge upon the subject by draughtsmen, steam students, and others has been the want of an elementary work, not overcrowded With mathematics. Most of the literature upon the subject has presented the mathematical rather than the graphical side of the question, with the result that students have become afraid of tackling What they believe to be an intricate mathematical investigation.
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