What do you think?
Rate this book
The Steam-Turbine Expansion Line on the Mollier Diagram, and a Short Method of Finding the Reheat Factor
Excerpt from The Steam-Turbine Expansion Line on the Mollier Diagram, and a Short Method of Finding the Reheat Factor
Let TO be the kinetic energy per unit mass at ao, of the axial component 1 of the velocity, and T the corresponding quantity at A. The channel at AO and A shall be varying in cross section so slowly that the kinetic energy of the radial velocity is negligible. If 1 per cent of the total kinetic energy is a negligible quantity, a total taper of one in four, for a cone, is permissible, so that no severe demands are made on the constancy of cross section at AO and A.
Subject to the foregoing restriction in the immediate vicinity of AO and A, the shape of the channel between AO and A is a matter of complete indifference. There may, if we please, be included, as forming a part of the channel or completely inclosed within it, a motor actuated by the flow of the fluid and delivering work outside the channel, or a pump actuated by the application of power from without and doing work on the fluid. The walls of the channel must be tight so as to prevent leakage of fluid, but they need not be thermally insulating. The fluid may be any liquid, vapor, or gas, but for concreteness we shall usually refer to it as steam.
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.
Let TO be the kinetic energy per unit mass at ao, of the axial component 1 of the velocity, and T the corresponding quantity at A. The channel at AO and A shall be varying in cross section so slowly that the kinetic energy of the radial velocity is negligible. If 1 per cent of the total kinetic energy is a negligible quantity, a total taper of one in four, for a cone, is permissible, so that no severe demands are made on the constancy of cross section at AO and A.
Subject to the foregoing restriction in the immediate vicinity of AO and A, the shape of the channel between AO and A is a matter of complete indifference. There may, if we please, be included, as forming a part of the channel or completely inclosed within it, a motor actuated by the flow of the fluid and delivering work outside the channel, or a pump actuated by the application of power from without and doing work on the fluid. The walls of the channel must be tight so as to prevent leakage of fluid, but they need not be thermally insulating. The fluid may be any liquid, vapor, or gas, but for concreteness we shall usually refer to it as steam.
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.
43 pages, Hardcover
Published November 24, 2017
Ratings & Reviews
Friends & Following
Create a free account to discover what your friends think of this book!
Community Reviews
No one has reviewed this book yet.