Cornish Boiler Working Pdf

Vertical tubular, Lancashire, Cochran, Cornish, locomotive fire box. Upon request we will supply boiler with a working pressure up to 12 bars. PowerPoint PPT. PPT boiler Power. Point presentation free to download. Title boiler 1. Steam Generator BoilerSEMINAR ONUnder Guidance of Prof. A. A. Kagwade. Presented By PATIL S. G. SHELAR S. V. Roll No. S. Y. DIPLOMA AUTOMOBILE P. V. P. I. T. BUDHGAON SANGLI 2. INTRODUCTIONClassification of boilers Fire tube boiler Water tube boiler Boiler accessories Essential of a good boilers Boiler capacity Boiler efficiency Selection of boiler 3steam generator a steam generator or boiler is usually a closed vessel made of steel. The steam produced may be supplied to power generation heating space heating hot water supply industrial processes sugar mills chemical industries 4. Classification of Boilers Relative position of hot gas and water Fire tube boiler Hot gasses pass through the tubes that are surrounded by water. Horizontal return tubular, vertical tubular, Lancashire, Cochran, Cornish, locomotive fire box, scotch marine etc. American-Cyclopaedia-11/images/Locomotive-Boiler.jpg' alt='Cornish Boiler Working Pdf' title='Cornish Boiler Working Pdf' />This ppt helps to know about the boiler. STREAM Presentation. Steam Boiler Working principle and Types of Boiler. Working Principle of Boiler The basic working principle of boiler. Definition Definition A boiler or steam generator is a device used to create steam by applying heat energy to water Although the definitions are somewhat flexible. Water tube boiler The tubes contain water and the hot gases flow outside Babcock and Wilcox, stirling boiler Lamont boiler Wilcox, boiler, la boiler, Benson boiler and Loffler boiler. Classification of Boilers Method of firing Internally fired boiler Lancashire, Locomotive, and Scotch Externally fired boiler Babcock and Wilcox Pressure of steam High pressure gt. Babcock and Wilcox Lamont etc Low pressure lt. Cochran, Cornish, Lancashire and Locomotive 6. Classification of Boilers According to the axis of shaft Vertical tubular Horizontal tubular Method of circulation of water Natural circulation Forced circulation 7. Classification of Boilers Nature of service to be performed Land boilers Portable boiler Mobile boilers Heat source Combustion of solid, liquid, or gas Electrical or nuclear energy Hot waste gases of other chemical reactions 8 Fire Tube Boilers A fire tube boiler is a type of boiler in which hot gases flue gases products of combustion from a fire heat source pass through one or more tubes running through a sealed container of water. Manual De Powerpoint 2007 Descargar Gratis. The heat energy from the gases passes through the sides of the tubes by thermal conduction, heating the water and ultimately creating steam. A fire tube boiler is sometimes called a smoke tube boiler or shell boiler or sometimes just fire pipe. Types of Fire Tube Boiler Cochran boiler, Lancashire boiler, Scotch marine boiler, Locomotive boiler etc 9. Fire Tube Boiler. Cochran Boiler Vertical Multi tubular Internally fired Natural circulation Favorable in small Plants Coal or oil burnt 1. Fire Tube Boiler Locomotive Boiler Horizontal Multi tubular Natural circulation Internally fired Fire tube Portable 1. Water Tube Boiler A water tube boiler is a type of boiler in which water circulates in tubes heated externally by the hot gases flue gases. Water tube boilers are used for high pressure boilers. Fuel is burned inside the furnace, creating hot gas which heats up water in the steam generating tubes. Types of water tube boiler Babcock Wilcox boiler, Sterling boiler etc. Fig. Schematic Diagram of a Water Tube Boiler 1. Water Tube Boiler Babcock Wilcox boiler 1. Comparison between Water Tube and Fire Tube Boilers. Fire Tube Boiler Water Tube Boiler. The hot gases from the furnace pass through the tubes which are surrounded by water in the shell The water circulates inside the tubes which are surrounded by hot gases from the furnace. It cannot handle high pressure It is a high pressure boiler. The rate of generation of steam is relatively low The rate of generation of steam is high. Overall efficiency is up to 7. Overall efficiency is up to 9. It is not preferable for fluctuating loads for a longer time period It is preferred for widely fluctuating loads. The operating cost is less The operating cost is high. The bursting chances are less but bursting produces greater risk to the damage of the property The bursting chances are higher but bursting doesnt produce any destruction to the whole boiler. It is generally used for supplying steam on a small scale and is not suitable for large power plants It is used for large power plants 1. Lenovo T420 Recovery Media on this page. Boiler Mountings Mountings are required for proper and safe functioning of the boiler which are generally mounted over the boiler shell. Water Level Indicator Pressure gauge Safety valves Steam stop valve Blow off cock Fusible plug Feed Check valve 1. Boiler Accessories Accessories are used for efficient running of the boiler Super heater Economizer Air preheated 1. Super heater 1. 7Economizer 1. Air Preheater. Fig. An Air Preheater 1. Essential of a good boilers 1. The boiler should be capable of generating steam at the required pressure and of the required quality quickly and with minimum fuel consumption. The initial cost, installation cost and the maintenance cost of the boiler should not be too high. The boiler should be light in weight, should need the least amount of brick work construction and should occupy small floor area. The boiler should meet the fluctuating demands or steam supply without being overheated 5. The different parts of the boiler should be easily approachable for repairs. There should be no deposition of mud and other foreign particles on the heated surfaces 7. The boiler should conform to the safety regulations as laid down in the Boilers Act 2. Boiler Capacity Evaporation or equivalent evaporation per hour may be taken as a measure of boiler capacity. It is generally measured in tons or kg per hour. Boiler Efficiency Efficiency of a boiler may be defined as the ratio of heat utilized for the generation of steam to heat supplied due to the burning of fuel. Boiler efficiency, ms be the mass of steam evaporated in a given time mf be the mass of fuel burnt at the same time HV be the heating value of fuel per unit mass h be the enthalpy per unit mass of steam h. HV 2. 2Selection of Boiler The selection of type and size of a boiler depends on the following factors The power required and working pressure The geographical position of the power house Quality of the fuel and water available Steam generation rate. REFERENCES 1. Analysis of the Industrial Boiler Population, Topical Report GRI 9. Energy and Environmental Analysis, Inc., for the Gas Research Institute, Chicago, Illinois, June 1. Rules for Construction of Power Boilers. Section I, ASME Boiler and Pressure Vessel Code, American Society of Mechanical Engineers, New York, 1. Packaged Boiler Engineering Manual, 2nd ed., American Boiler Manufacturers Association, Arlington, Virginia, 1. Rules for Construction of Heating Boilers. Section IV, ASME Boiler and Pressure Vessel Code, American Society of Mechanical Engineers, New York, 1. Alternative Control Techniques Document NOx Emissions from. IndustrielCommercial Institutional ICI Boilers, EPA 4. R 9. 4 0. 22, U. S. Descargar Libros Mario Benedetti Gratis. Environmental Protection Agency, March 1. Guideline for Gas and Oil Emission Factors for Industrial, Commercial, and Institutional ICI Boilers, American Boiler Manufacturers Association, Arlington, Virginia, 1. Energy Efficiency Handbook, ed. R. A. Zeitz, Council of Industrial Boiler Owners, Burke, Virginia, November 1.