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Mar 21, 2013 · Typical specifications of Cochran boiler are: Size = 3 m diameter x 2 m high (evaporation 20 kg/hr) = 3 m diameter x 6 m high (evaporation 3000 kg/hr) Heating surface = 10 to 25 times grate area. Steam pressure = Up to 20 bar. Efficiency = 70 to 75%. The Cochran boiler is compact in design and there is good external and internal accessibility.
Get PriceC).Inclined boilers: If the axis of the shell of boiler is Inclined so the boiler is called as Inclined boiler. COCHRAN BOILER: Cochran boiler is a vertical, multitubular fire tube, internally fired, natural circulation boiler. Construction: Figure shows a Cochran boiler. It consists of a vertical
Get PriceCochran boiler should be explained clearly as a part of a steam power plant. The report should start with the basic information of steam power plant. Students should draw a neat labeled diagram for the boiler and then should mention further about the mountings and accessories of the boiler with a detail description.
Get PriceApr 22, 2020 · Mechanical Engineering: Cochran boiler. Cochran boiler. It is a multi-tubular vertical fire tube boiler having a number of horizontal fire tubes. T is the modification of a simple vertical . Ask Price View More; Notes on Cochran Boiler – ME Mechanical. Cochran boiler is a vertical, coal or oil fired, fire-tube boiler.
Get PriceCochran boiler is efficient than the simple vertical boiler and it was founded by Cochran & Co. of Annan. In this boiler, the fire tubes are placed horizontally and the hot gases are surrounded around them for the generation of steam. In this article, we will discuss Cochran Boiler: Definition, Parts, Working, Specification, Applications, Advantages & Disadvantages in a detailed way.
Get PriceNotes on Cochran Boiler - ME Mechanical. Cochran Boiler. Cochran boiler is a vertical, coal or oil fired, fire-tube boiler. It is the modification of a simple vertical boiler with increase in surface area. Cochran boiler consists of a cylindrical shell with its top in a spherical shape. The furnace of the Cochran boiler is in hemispherical shape.
Get PriceHere is a list of important steam boilers:- 1. Cochran Boiler 2. Lancashire Boiler 3. Locomotive Boiler 4. Babcock and Wilcox Boiler 5. Oil-Fired Packaged Boiler. 1. Cochran Boiler: Cochran boiler is one of the best types of multi-tubular vertical fire tube boiler. It has a number of horizontal smoke tubes.
Get Pricea. The boiler which produce steam at pressure below 80 bar are called low pressure boiler. ex. Cochran[Pressure less than 80 bar] b. The boilers which produce steam at pressure of 80 bar and above are called high pressure boiler. ex. Velox High pressure boiler [Pressure greater than 80 bar] 5. According to the method of water circulation a.
Get PriceExperiment No: 1 AIM:-To study the working and construction details of Cochran and Babcock & Wilcox Boiler. Apparatus: - Model of Cochran and Babcock & Wilcox Boiler. Theory:-Boiler: - A steam boiler is a closed vessel in which steam is produced from water by combustion of fuel. Classification of Boiler: Boilers are classified on the basis of following-
Get PriceThe accessories and mountings of the Cochran boiler are as listed below- 1. Safety valve. 2. Pressure gauge. 3. Water level indicator. 4. Stop valve . 5. Blow off cock. Construction- The credit of manufacturing Cochran boiler goes to Cochran & Co. of Anman. It is a vertical boiler having multiple horizontal tubes placed in it.
Get PriceApr 26, 2021 · Cochran Boiler Working Principle: Working of the Cochran boiler is from the grate the fuel gases or coal are used and that is inserted. From the firing door, the fire is provided to start the burning of fuel. The burning of fuel generates the hot flue gases and it comes to the combustion chamber.
Get PriceMar 03, 2020 · The Cochran boiler was founded by Cochran & Co. of Annan. It is a vertical multi -rounded kettle and having various level fire tubes. It is the modification of simple vertical evaporator where the heating surface has been increased by means of a number of fire tubes. The productivity of this evaporator is obviously superior to the straightforward vertical heater.
Get PriceApr 26, 2021 · Cochran Boiler Definition: Cochran boiler is a fire tube boiler (Fire inside the boiler and water surrounding to them) in which coal or gases as a working fluid is used, for generating the steam and that steam further used for …
Get PriceMay 14, 2017 · Cochran boiler 1. Cochran Boiler Name:Shukla vivek En.NO:130990136056 2. • The Cochran boiler was produced by Cochran & Co. of Annan, Scotland. It is widely used in marine practice, either fired directly by coal or oil fuels, or else used for heat recovery from the exhaust of large diesel engines.
Get PriceME 416/516 Introduction There is a tremendous variation in boiler design and size- ranging from home heating size of capacity less than 100 Ibm/hr of steam to utility boilers in excess of 10 million Ibm/hr. The focus here will be on boilers sized in between these two extremes, which is also where there is the greatest diversity of design.
Get PriceNotes on Cochran Boiler - ME Mechanical. Cochran Boiler. Cochran boiler is a vertical, coal or oil fired, fire-tube boiler. It is the modification of a simple vertical boiler with increase in surface area. Cochran boiler consists of a cylindrical shell with its top in a spherical shape. The furnace of the Cochran boiler is in hemispherical shape.
Get Price4. a) With the help of neat sketch, explain Cochran Boiler. What are its special features? (5M) b) A nozzle is to be designed to expand steam at the rate of 0.10 kg/s from 500kPa, 2100C to 100kPa. Neglect inlet velocity of steam. For a nozzle efficiency of 0.9, determine the exit area of the nozzle. (5M) (OR) 5.
Get PriceBabcock and Wilcox boiler, Stirling boiler, La-mont boiler, Benson boiler, Loeffler boiler etc are some of water tube boilers. 2. According to the pressure of steam: a) Low pressure boiler: A boiler which generates steam at a pressure of below 80 bars is called low pressure boiler. Examples: Cochran boiler, Lancashire boiler etc.
Get PriceMar 25, 2020 · Cochran Boiler is a simple fire tube boiler with multiple fire tubes. It is a modification of a simple vertical boiler. In the Cochran boiler, the heating surface is replaced with multiple fire tubes that's why it is the modification of Simple Vertical Boiler. Cochran boiler has greater efficiency comparatively Simple vertical boiler.
Get PriceJul 03, 2011 · Cochran boiler: a vertical boiler with horizontal fire-tubes. Notes on Cochran Boiler – ME Mechanical Cochran boiler is a vertical, coal or oil fired, fire-tube boiler. It is the modification of a simple vertical boiler with increase in surface area. Cochran Boiler – Main Parts, Working, Advantages and … Cochran Boiler is a vertical drum …
Get PriceCochran Boiler. Cochran boiler is a vertical, coal or oil fired, fire-tube boiler. It is the modification of a simple vertical boiler with increase in surface area. Cochran boiler consists of a cylindrical shell with its top in a spherical shape. The furnace of the Cochran boiler is in hemispherical shape. The grate is placed at the bottom of
Get PriceMay 12, 2020 · Types of Artificial or Mechanical Draught. 6.1. 1. Steam Jet Draught. 6.2. 2. Mechanical or Fan Draught. Boiler draught is defined as the difference between absolute gas pressure at any point in a flow passage and the ambient (same elevation) atmospheric pressure. Draught is achieved a small pressure difference which causes the flow of air or
Get PriceCochran Boiler: A Cochran boiler is one of the best popular types of vertical multi-tubular, fire- tube boiler. The Cochran boiler is made in sizes upto 2.75 metre diameter and 5.8 metre height. It has a maximum evaporative capacity of 3640 kg of steam per hour, from cold feed, when burning 568 kg of coal per hour.
Get PriceEXPERIMENT No. - 1 TITLE: To study the Cochran Boilers. OBECTIVE: The objective of the study is to know about the working procedure & parts of the Cochran boiler with the help of model. APPARATUS USED: Model of Cochran Boiler. THEORY: A boiler is a closed vessel in which steam is produced from water by combustion of fuel. The primary requirements of steam generator or …
Get Price3. Combustion Chamber: The burning of fuel takes place in the combustion chamber.. 4. Fire Tubes: Cochran boiler has multi tubular fire tubes.The hot flue gases from the combustion chamber travels to the smoke box through these fire tubes. The fire tubes helps in the exchange of heat from the hot flue gases to the water.
Get PriceNotes on Cochran Boiler - ME Mechanical. Cochran Boiler. Cochran boiler is a vertical, coal or oil fired, fire-tube boiler. It is the modification of a simple vertical boiler with increase in surface area. Cochran boiler consists of a cylindrical shell with its top in a spherical shape. The furnace of the Cochran boiler is in hemispherical shape.
Get PriceCochran Boiler •Vertical multi-tubular low pressure fire tube boiler. •Consist of cylindrical shell with dome shaped top for collecting steam. •Fuel is burnt on grate & ash collected is disposed of from ash pit. •Hot gases from fire box passes through flue tube to combustion chamber. Dept of ME, UEC Vallivattom Energy conversion devices
Get Price4. Fire Tubes: Cochran boiler has multi-tubular fire tubes. The hot flue gases from the combustion chamber travels to the smokebox through these fire tubes. The fire tubes helps in the exchange of heat from the hot flue gases to the water. 5. Fire …
Get PriceMar 21, 2013 · Typical specifications of Cochran boiler are: Size = 3 m diameter x 2 m high (evaporation 20 kg/hr) = 3 m diameter x 6 m high (evaporation 3000 kg/hr) Heating surface = 10 to 25 times grate area. Steam pressure = Up to 20 bar. Efficiency = 70 to 75%. The Cochran boiler is compact in design and there is good external and internal accessibility.
Get PriceCochran Boiler: Definition, Construction or Main Parts, Working
Get PriceNov 01, 2017 · Notes on Cochran Boiler – ME Mechanical Cochran boiler is a vertical, coal or oil fired, fire-tube boiler. It is the modification of a simple vertical boiler with increase in surface area. Water Tube Boiler | Cochran Industrial Boiler Solutions An industrial water tube boiler from Cochran is suitable for firing on all commercially available
Get PriceNotes on Cochran Boiler - ME Mechanical. Cochran boiler is a vertical, coal or oil fired, fire-tube boiler. It is the modification of a simple vertical boiler with increase in surface area. Learn More. BOILER CONSTRUCTION : D-type boiler construction | Marine. The boiler is protected from the high temperatures of combustion by the refractory.
Get PriceThe accessories and mountings of the Cochran boiler are as listed below- 1. Safety valve. 2. Pressure gauge. 3. Water level indicator. 4. Stop valve . 5. Blow off cock. Construction- The credit of manufacturing Cochran boiler goes to Cochran & Co. of Anman. It is a vertical boiler having multiple horizontal tubes placed in it.
Get PriceCochran Boiler: Definition, Construction or Main Parts, Working
Get PriceFeb 13, 2017 · Mechanical Engineering Ebooks Download/ Mechanical Engineering Notes; Engineering Management notes; Results 1 to 5 of 5 . Thread: Engineering Management notes. Popular topic for study. COCHRAN BOILER . A vertical boiler with horizontal fire-tubes is a type of small vertical boiler, used to generate steam for small machinery. It is characterized
Get PriceNotes on Cochran Boiler – ME Mechanical. Mar 5, 2016 … Cochran boiler is a vertical, coal or oil fired, fire-tube boiler. … The hemi-spherical head of the Cochran boiler shell gives maximum … Safety Valve: The function of the safety valve is used to prevent the increase of steam … Chat Now; Boiler Details Part 2
Get PriceCochran Boiler || Definition, Main Parts, Working, Features, & Advantages
Get PriceFeb 13, 2009 · Discuss the constructional & operational details of Cochran Boiler. (Dec.2007) Q2(a). Enumerate the which should be considered while selecting a boiler. State the minimum number of safety valves to be used on a boiler. (b). Write a short note on Moilier chart. Derive a relation for mechanical advantage and velocity ratio for the system
Get PriceME 416/516 Introduction There is a tremendous variation in boiler design and size- ranging from home heating size of capacity less than 100 Ibm/hr of steam to utility boilers in excess of 10 million Ibm/hr. The focus here will be on boilers sized in between these two extremes, which is also where there is the greatest diversity of design.
Get PriceCochran Boiler furnace is also hemispherical in shape. square4 This boiler has dimensions from 1 m in diameter and 2 m height to 3 m diameter and 6m height. square4 The grate is placed at the bottom of furnace and ash-pit is located below the grate. square4 The gases passing through the fire tubes transfer heat to water by convection 30 12/5
Get PriceHigh Pressure and Low pressure Boilers: The boilers which produce steam at pressures of 80 bar and above are called high-pressure boilers Example Babcock & Wilcox, Velox, Lamont, Benson boilers. The pressure below 80 bar in a boiler is called low-pressure boilers Example; Cochran, Cornish, Lancashire, Locomotive etc.
Get PriceCochran Boiler is a multi-tubular vertical fire tube boiler having a number of horizontal fire tubes. It is the modification of a simple vertical boiler where the heating surface has been increased by means of a number of fire tubes. The efficiency of this boiler is …
Get Price2.8 Cochran Boiler or Vertical Multi tubular Boiler Cochran boiler is a vertical, multi tube boiler commonly used for small capacity steam generation. It is made in different sizes of evaporative capacities ranging from 150 to 3000kg/hr and working pressure up to 15 bar. Construction: This boiler consists of an external cylindrical shell and a
Get PriceThe fuel is burnt on the grate and hot gases go to the combustion chamber through a short flue tube. The combustion continues in the combustion chamber. 20/11 Fire-Tube Boiler Cochran Boiler: The hot gases pass through the fire tubes and …
Get PriceExperiment No: 1 AIM:- To study Low pressure Boiler and their mountings and accessories . Apparatus: - Model of Cochran and Lancashire Boiler Theory: -A steam boiler is a closed vessel in which steam is produced from water by combustion of fuel. Classification of Boiler: Boilers are classified on the basis of following - 1. According to contents in the Tube
Get PriceCochran boiler may be termed as multi-tube boiler because it has a number of flue tubes. NOTE: Babcock and Wilcox boilers use solid or gaseous fuel. Volex boilers use oil fuel. Saswata Baksi is an Executive editor of Learn Mechanical. He …
Get PriceDec 16, 2016 · 1. Elements of Mechanical Engineering COCHRAN BOILER & LANCASHIRE BOILER. 2. Index: Here _ words means hyperlink & cons. Means construction. 3. COCHRAN BOILER. 4. General It is one of the best types of vertical multi-tube type boiler. It is fire tube type boiler. It is popular portable boiler.
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Get PriceCHAPTER TWO: Boiler Operation Maintenance & Safety Study Guide 2.1 Boiler Design and Construction Boiler: A boiler is a closed vessel in which water is heated, steam is generated, superheated or any combination thereof under pressure or vacuum by the direct application of heat from combustible fuels or electricity. The steam produced is used for
Get PriceWilcox boiler and Cochran boiler. Babcock and Wilcox boiler Babcock and Wilcox is a water-tube boiler is an example of horizontal inclined tube boiler it also a High Pressure Boiler. Bachelor of Technology (B.Tech) The laboratory manual and/or instructor Page 25/31
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