Modern Engines and Power Generators, Vol. 2
Excerpt from Modern Engines and Power Generators, Vol. 2: A Practical Work on Prime Movers and the Transmission of Power, Steam, Electric, Water and Hot Air In this Volume the Heat Engine, in which the working fluid is a true gas or air, is described in all its forms. The simple "hot air" engine is described in its only useful types for small powers. It has still a field of usefulness, especially for water raising. The constant pressure gradual combustion type of internal combustion engine has, in the Diesel Engine, come again to the front; whether it is to be the permanent standard type or not, it has considerable scientific interest. We have also to note the new water piston engine of Volt's invention. This is a remarkable departure from common practice. The gas or internal combustion turbine is of vast interest, and is briefly referred to; many advanced engineers are engaged on the problem, but little is known of results obtained. Internal combustion Marine Engines for small powers are common, but no serious attempts have been made to introduce it for mercantile or naval shipping on any scale -its uses at present being mostly for pleasure or sporting purposes in launches- But the time is ripe for greater things. Gas can now be made with certainty, safety, and cheapness in gas producers. And these producers present no difficulties in the way of their application to marine propulsion by gas engines. The significant fact to engineers is that less than i lb. of common bituminous slack coal can do the work of 3 lbs. of the best Welsh steam coal, and a horsc-powcr obtained for one-twentieth of a penny per hour. This opens up a new field for the gas engine of enormous magnitude. Large gas engines arc now common enough on land working with producer gas and furnace gases with satisfactory results. The tncide of action and general design of gas and oil engines of different makes are all very similar, the difference is only in details; out of all the classes in use it should be possible at this date to eliminate a number of them and come to some Standard designs, embodying the good points of all of them. The larger engines arc more likely to arrive first at a standard type, the market for large powers is rapidly growing. No branch of manufacturing engineering business offers a more brilliant future than that of the internal combustion prime mover, not even electrical engineering. The internal combustion engine is a prime mover, - electrical engines are only power transmitters, replacing belts, pulleys, and shafting. The growth of the internal combustion engine, and the gas producer, providing gas at a very cheap rate, has been very slow but very sure. And at this moment no steam plant of any design or make can produce i horse-power-hour at the same low cost as the gas producer and engine. And the difference will be greater still in favour of gas when the turbine is perfected. This part of the work is therefore of great interest to all engineers and those concerned about the fuel supply of the future. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.