Steam Engines

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General

Is steam power in your future- If you’re thinking steam is old-fashioned, consider this: Almost a century ago, steam cars and ships attained speeds and efficiencies which are still difficult to attain, even with today’s modern internal combustion engines.

Theory & Application

Basic Terms and Theory Thermodynamics. Lots more here too. Bring a lunch...

The Steam and Condensate Loop This Module of The Steam and Condensate Loop is intended to give a brief, non-technical overview of the steam plant. It offers an overall explanation of how the different parts of the steam plant relate to each other - and represents useful reading for anyone who is unfamiliar with the topic, prior to progressing to the next Block, or, indeed, before undertaking any form of detailed study of steam theory or steam plant equipment.

Urban Technological Systems Before Edison: Steam Heat and Power in Philadelphia by Morris A. Pierce. Although electricity and electrification has been a subject of broad inquiry, it is important to remember than electricity provides only a fraction of the energy used in the United States. In 1990, for instance, total American energy consumption amounted to 81.2 quadrillion British thermal units, or "quads" (10¹⁵ BTUs), of which utility electric companies provided only 29.6 quads, or 36.6% of total energy consumption. Furthermore, electricity utilities are not particularly efficient, for of the 29.6 quads of energy consumed in generating electricity, nearly 70% (20.3 quads) was considered "lost during generation, transmission, and distribution."

Reflections on the Motive Power of Heat and on Machines Fitted to Develop that Power, Translated by R.H. Thurston, New York, 1890. 260 pages, including 1 picture, tables, formulas, and supplementary material. Carnot's work was originally published in 1824 and, although long ignored, forms the scientific basis of modern thermodynamics. Very important book.

THE THEORY AND PRACTICE OF DRAINING STEAM MAINS [PDF] Steam main drainage is one of the most common uses of steam traps. It is different from most steam trap applications in that thermal efficiency is not the prime objective – safety being the first consideration in a steam main drainage installation. Inadequate drainage is a common cause of damaged controllers, steam traps and of leaking joints.

Troubleshooting Steam Heat Exchangers and Their Systems - Part 2 When a heat exchanger "stalls," condensate floods the steam space and causes a variety of problems within the exchanger. See also: Bell & Gossett Tech Help Check out their CAD and Software areas, too.

The Theory of Steam Engineering A series of reproduced articles from the 1800's trade journals

Lord Kelvin | On the Dynamical Theory of Heat with numerical results deduced from Mr Joule’s equivalent of a Thermal Unit, and M. Regnault’s Observations on Steam

Just Boilers & Pipes

Steam Distribution Efficiency article by Fred Hooper about calculating the efficiency of steam distribution systems, along with info about his trap-maintenance and system-efficiency software

Steam Conditioning Valves A producer of components.

The Boiler House : Spirax Sarco Learning Centre Lots of info on boilers see also: Steam Distribution : Spirax Sarco Learning Centre

Homeowners Clinic Monthly Q&A Column: May 2000 - Popular Mechanics Steam boilers are quite similar to those used to produce hot water. In some cases, old steam boilers are converted into hot-water boilers. But there are major differences between steam and hot-water heating systems beyond the boiler. In a hot-water system, the boiler and distribution piping are completely filled with water. On the other hand, a steam boiler is only 75 percent full of water. The remaining portion of the boiler, the distribution piping and the radiators are filled with air. They become filled with steam when the system is operating. The two systems use different valves, piping, radiators, safety components and controls.

Your guide to safer boiler operation [PDF]

Boiler Efficiency Wow! Big resource from the Natural Gas Consortium.

Boiler Basics by the State of Oregon

How Efficient Is Your Steam Distribution System? There's an old management saying, "If you don't measure it, you don't get it." Nobody measures their steam distribution system efficiency because there is no generally accepted method. So your system's efficiency is probably low -- not the 70-90% of the boiler, but instead the 30-60% of a neglected system. This paper proposes a method of measuring it.

Steam Distribution Systems A steam distribution system transports steam or hot water from a boiler to the various pieces of end-use equipment throughout a plant. Distribution heat losses can be from 5 to 15 percent of the total energy generated in a boiler system, and, consequently, should be regularly reviewed as part of your plant's overall steam system efficiency efforts. A thorough operations and maintenance program can reduce these losses and save fuel and money.

Steam Heat

Karl Schaeffer: Steam Generator (US Patent # 3791349) A technology is available that can effectively eliminate any need for using natural gas to heat water, homes or industry. It is a machine that can solve many of the energy problems which became so glaringly apparent last winter. The device is a steam generating machine invented by the late Karl Schaeffer of Chicago. Schaeffer's method of making super-heated steam is instantaneous and will economically eliminate all need for huge boilers and direct use of fossil fuels. Schaeffer's electrically powered steam machine also makes all the millions of constantly burning pilot lights obsolete. Among the ore than 500 applications for steam, the Schaeffer device can effectively heat a modern home with 20% less electricity than is now required. This machine makes super-heated steam from running cold water instantly and without burning up a great deal of energy.

Steam Power

Steam generation Steam and electricity are generated together. This is energy efficient because it makes use of the hot by-products put out by the generating process. The electricity is sold to the National Grid. However, the steam is all used on site.

T113-D.C. Power Stations ~ Steam engines In 1904, when the Bath Electric Tramways power station was constructed, steam turbines were still struggling to gain acceptance in power stations of this size. The BET station was designed for the tried and tested technology of reciprocating steam engines. The three main generators were powered by double-acting reciprocating engines made by Yates and Thom. They were compound engines with Corliss valve gear, a design which gave high efficiency.

Thermodynamic Properties of Water and Steam for Power Generation

Technology Characterization: Steam Turbines  Steam turbines are one of the most versatile and oldest prime mover technologies still in general production. Power generation using steam turbines has been in use for about 100 years, when they replaced reciprocating steam engines due to their higher efficiencies and lower costs. Conventional steam turbine power plants generate most of the electricity produced in the United States. The capacity of steam turbines can range from 50 kW to several hundred MWs for large utility power plants. Steam turbines are widely used for combined heat and power (CHP) applications.

DTI - Heat recovery steam generators for power generation and ...
 

Steam Engines

Steam engine terminology and operating principles Johnson bar? Reversing gear? Double acting? Double expansion? Time for some steam engine terminology and operational basics.

Rotary Steam Engines. Early in the history of the steam engine, many inventors felt that conventional construction, with piston, connecting rod and crank was unduly space-consuming, and also far from perfect when it came to generating unbalanced reciprocating forces. A rotary steam engine, that used the expansion of steam to generate shaft rotation directly, promised to be far more compact, exactly as the Wankel rotary engine was intended to revolutionize the internal-combustion engine. Some versions claimed to give a uniform torque so that a flywheel was not required; but then again many of the designs shown here have conspicuously large flywheels.

The Miners Friend, or an Engine to Raise Water by Fire, London 1702. Thomas Savery, [Nicole Parson, Katrina Turner, Julian Woodard, Tesfa Myrie]

The Abortion of the Young Steam Engineer's Guide, 1805. 139 pages, tables and illustrations. Oliver Evans, [Joseph Timmons, Nora Di Matteo, Ben Cichy, and Don Aviv] An investigation of the principles, construction and powers of Steam Engines. A description of a Steam Engine on new principles, rendering it much more powerful, more simple, less expensive, and requiring much less fuel than an engine on the old construction. A description of a Machine, and its principles, for making Ice and cooling water in large quantities, in hot countries, to make it palatable and wholesome for drinking, by the power of Steam: invented by the author. A description of four other patented inventions.

The Steam Engine Explained and Illustrated; with an account of its invention and progressive improvement, and its application to Navigation and Railways; including also a Memoir of Watt. 7th edition, London, 1840. 522 pages, many illustrations. Dionysius Lardner, Written for a popular audience, but very complete. Unfortunately, the online presentation only includes chapters 13, 14 and the appendix.

e-Zee (Little) Steam Engines: A curriculum support site providing free lab-project plans for technical students, their teachers and others interested in applied mechanical engineering. You may freely copy and distribute these plans for non-commercial use……we have no interest in copyrighting them (most “copyrights” on the internet are fake anyway). You will notice that many of the prints have a “watermark” crediting our college department (CCM Engineering)……if you do make copies, we ask you to leave the “watermark” on.

Howstuffworks "How Steam Engines Work" Steam engines were the first engine type to see widespread use. They were first invented by Thomas Newcomen in 1705, and James Watt (who we remember each time we talk about "60-watt light bulbs" and the such) made big improvements to steam engines in 1769. Steam engines powered all early locomotives, steam boats and factories, and therefore acted as the foundation of the Industrial Revolution. In this article, we'll learn exactly how steam engines work!

A History of the Growth of the Steam-Engine New York, 1878. 490 pages, 147 illustrations and 15 portraits. Thurston was a prominent engineer, and the book is well written.

The Steam Turbine, Cambridge, 1911. 57 pages, about 40 pictures and technical drawings. Parsons was largely responsible for the commercial success of the steam turbine. [Corey Smith]

3RR The Inner Working of a Steam Engine The steam engine was invented in the late 1700s as part of the foundation of the Industrial Revolution. The first steam locomotive was developed in the early 1800s. The first use was to carry goods on tramways in the place of horses. Over the past 200 years, the principle of how a steam engine works has remained the same.

Other

The Obvious: Steam Rooms - Steam Baths - Steam Saunas

The Pneumatics of Hero of Alexandria from the original Greek, translated for and edited by Bennet Woodcroft. London, Taylor Walton and Maberly, 1851. 111 pages, about 50 illustrations. Written about AD300. First book describing a steam engine. [Peter Hark and Dan Sonneborn]

External Steam Agitation (ESA™) Technology Macerates Existing ... External Steam Agitation (ESA™) technology is specifically designed for the treatment and destruction of liquid and solid infectious waste. The technology uses a new process that renders the contents both biologically inert and visibly treated. The units are a jacketed pressure vessel equipped with a motor driven shaft. An arm assembly is mounted to the shaft that rotates to macerate the internal waste contents. Steam is injected into the jacket and heat is transmitted to the macerated waste. The ESA™ contains the infectious waste from the beginning of the process to the end of the sterilization cycle, once completed the chamber will then depressurize.

Use of High Pressure Steam in the Production of Maple Products High-pressure steam is a viable alternative processing method used for the production of maple products with considerable success and satisfaction. In recent years, many maple producers have found this method has a wide range of benefits and it is expected that the use of this technology will increase significantly.

Use steam to kill bed bugs It has been proven that vapor steam machines are the best way to kill and control bed bugs. It is impossible to identify all of the uses that dry steam cleaners can be put to. The range is almost boundless and is really only limited by any limitations of the surface to be cleaned and the imagination of the user.

Methods and Devices For Delivery of Ultra High Purity Steam, Jeffrey Spiegelman, August 2006

ALHN - America's Age of Steam This website is intended to provide an on-line visual record of the many ways America used (and continues to use) steam power and to provide this record freely to all, especially to the younger generation who may otherwise never see the diversity of steam power.

Who Uses Vapor Steam and High Pressure Steam?

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