To install click the Add extension button. That's it.

The source code for the WIKI 2 extension is being checked by specialists of the Mozilla Foundation, Google, and Apple. You could also do it yourself at any point in time.

4,5
Kelly Slayton
Congratulations on this excellent venture… what a great idea!
Alexander Grigorievskiy
I use WIKI 2 every day and almost forgot how the original Wikipedia looks like.
Live Statistics
English Articles
Improved in 24 Hours
Added in 24 Hours
What we do. Every page goes through several hundred of perfecting techniques; in live mode. Quite the same Wikipedia. Just better.
.
Leo
Newton
Brights
Milds

From Wikipedia, the free encyclopedia

Sections of a steam locomotive showing the many fire-tubes which carry the hot gases of the fire through the boiler to heat the water and so create steam.
Sections of a steam locomotive showing the many fire-tubes which carry the hot gases of the fire through the boiler to heat the water and so create steam.

Boiler design is the process of designing boilers used for various purposes. The main function of a boiler is to heat water to generate steam. Steam produced in a boiler can be used for a variety of purposes including space heating, sterilisation, drying, humidification and power generation. The temperature or condition of steam required for these applications is different, so boiler designs vary accordingly.

YouTube Encyclopedic

  • 1/3
    Views:
    55 704
    27 925
    450 530
  • Boiler Basics Design and Application Differences - July 2014
  • Solidworks tutorial Design Boiler
  • Boiler Working Animation Steam Boilers, Waste Heat Boilers, Thermal Liquid Heaters

Transcription

Modern design benefits

Boiler in the steam technology center at College of Engineering, Pune
Boiler in the steam technology center at College of Engineering, Pune

Modern boiler design offers several benefits. In the past, improper design of boilers has caused explosions which led to loss of life and property. Modern designs attempt to avoid such mishaps. Further, mathematical modeling can determine how much space a boiler will need and the type of materials to be used. When the design specifications of a boiler are determined, design engineers can estimate a cost and time schedule for the construction.

Boiler design may be based upon:

  • Production of a maximum quantity of steam with minimal fuel consumption
  • Economic feasibility of installation
  • Minimal operator attention required during operation
  • Capability for quick starting
  • Conformity to safety regulations
  • Quality of raw water : how hard or soft the water is will determine the material of the boiler.
  • Heat source - the fuel to be burned and its ash properties[1] or the process material from which the heat is to be recovered.
  • Capacity/steam output required, usually measured in tonnes per hour or kg/s.
  • Steam condition - pressure, temperature, etc.
  • Safety considerations
  • Mechanical constraints
  • Cost restrictions
  • Monetary cost
  • Tensile strength of material must be considered while using any joining processes.[2]

Accessories and mountings are devices which form an integral part of boiler but are not mounted on it. They include economizers, superheaters, feed pumps and air pre-heaters. Accessories help in controlling and running the boiler efficiently. Certain common mountings (specifically those required by the Indian Boiler Act) include:

  • Feed check valve - regulates the flow of water into the boiler and prevents the back flow of water in case of failure of the feed pump.
  • Steam stop valve - regulates the flow of steam that is produced in the boiler to the steam pipe, and may also be used to stop the supply of steam from the boiler
  • Fusible plug - placed at the lowest level of water and above the combustion chamber, its function is to extinguish the fire as soon as the water level in the shell of the boiler falls below a certain marked level.
  • Blow-off cock - removes water from the shell at regular intervals to remove the various impurities that may be settled at the bottom of the shell.
  • Safety valves - automatically prevent the steam pressure from exceeding safe levels
  • Water-level indicators - indicate the level of water in the shell.

References

  1. ^ Brad Buecker (2002), Basics of boiler and HRSG design, p. 59, ISBN 978-0-87814-795-3
  2. ^ "Elements of Workshop Technology", S Hajra Choudhury, Nirjhar Joy

Bibliography

This page was last edited on 26 May 2018, at 06:20
Basis of this page is in Wikipedia. Text is available under the CC BY-SA 3.0 Unported License. Non-text media are available under their specified licenses. Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc. WIKI 2 is an independent company and has no affiliation with Wikimedia Foundation.