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Jan 24, 2019 · 6. Characteristics of Cochran boilerCharacteristics of Cochran boiler It is vertical. It is portable. It is a fire tube boiler. The number of tubes are more (multi-tube). It is internally fired. It has natural circulation. Solid as well as liquid fuel can …
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Jul 19, 2021 · Cochran Boiler, Fire tube boiler, Multitube Boiler, Low pressure Boiler, Concept of Boiler, BOILER 00:00:00. Babcock and Wilcox Boiler, Water tube boiler, Working of Babcock and Wilcox Boiler, Boiler concept 00:00:00.
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Apr 05, 2015 · The fire tube boilers are classified as single tube and multi-tube boilers, depending upon whether the fire tube is one or more than one. …
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Aug 27, 2011 · Classification of boilers. 1. Horizontal, Vertical or Inclined Boiler. -If the axis is inclined it is called as inclined boiler. 2. Fire Tube and Water Tube. -In the fire boilers, the hot gases are inside the tubes and the water surrounds the tubes. Examples: Cochran, Lancashire and Locomotive boilers.
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A fire-tube boiler is a type of boiler in which hot gases pass from a fire through one or more tubes running through a sealed container of water. The heat of the gases is transferred through the walls of the tubes by thermal conduction, heating the water and ultimately creating steam.. The fire-tube boiler developed as the third of the four major historical types of boilers: low …
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Cochran Boiler | Cochran Boiler Working | Working Principle of Cochran
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Cornish boiler. Cochran boiler. Locomotive boiler. Lancashire boiler. Scotish marine boiler. Water Tube Boiler: In this boiler, the water is present inside the tubes and the hot flue gases surround them. They are high-pressure boilers and the operating pressure is about 250 bar. Stirling boiler. Babcock and Wilcox boiler.
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Oct 02, 2019 · Cochran Boiler is a modified form of the simple vertical boiler which has various firetubes which can exchange heat to water through convection The efficiency of this boiler is much better than the efficiency of simple vertical boiler. In this boiler flue gases will travel in the tubes which will be surrounded by water and water will be heated by convection from this tubes.
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This method is applicable in high-capacity water tube boilers. (iv) Single Tube and Multi Tube Boilers: The fire tube boilers may have single or multi tubes. Lancashire boiler is a fire tube boiler with a single tube in which hot gases move. Cochran boiler is a fire tube boiler called as multi tube boiler because it has large number of fire tubes.
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May 20, 2021 · In this video I have explained Cochran Boiler with following time codes: 0:00 - Basic Mechanical Engineering lecture series 1:02 – Features of Cochran Boile
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Cochran 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 much better than the simple vertical boiler. Parts of Cochran Boiler
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The disadvantages of Cochran Boiler are. The rate of steam generation in Cochran Boiler is low. As it is a vertically designed Fire Tube Boiler, which require more roof height. Due to the slow conversion of water into steam, the Fire Tube Boiler generates only Low pressure steam. Due to its design and construction, the maintenance of Cochran
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(c) Inclined boiler :-If the axis of the boiler is inclined it is known as inclined boiler.2. Fire tube and water tube boilers :-(a) Fire tube boiler : – The boilers in which the hot gases are inside the tubes and water is surrounding the tubes is called fire tube boiler. Example : Cochran, Lancashire and Locomotive (b) Water tube boiler : – The boilers in which the water is inside the
Get priceCochran Boiler: Definition, Construction or Main Parts, Working
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Aug 02, 2020 · cochran boiler working principle, cochran boiler parts, Generally, the Cochran boiler is one of the best types of vertical multi-tubular boiler. It is a fire tube boiler. It is a popular portable boiler. It occupies a very small floor area. The cost of construction is low. 3. It can be moved and set up readily in different locations.
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Fire-Tube Boiler (~1800) The fire tube boiler, the oldest design, is made so the products of combustion pass through tubes surrounded by water in a shell. The furnace/flame volume can either be inside or external to the shell that contains the water. The upper steam capacity of fire tube boilers is about 20,000 Ibm/hr, and the peak pressure
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Cochran boilers The modern vertical Cochran boiler has a fully spherical furnace and is known as the 'spheroid' . The furnace is surrounded by water and therefore requires no refractory lining. The hot gases make a single pass through the horizontal tube bank before passing away to exhaust.
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In this article, we will discuss Cochran Boiler: Definition, Parts, Working, Specification, Applications, Advantages & Disadvantages in a detailed way.. Cochran Boiler Definition: Cochran Boiler is one of the best types of vertical, …
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Nov 16, 2020 · It is a low-pressure boiler. you can use any type of fuel for running a Cochran Boiler. This is suitable for small capacity requirements. It has about 70% thermal efficiency with coal firing and about 75% thermal efficiency with oil …
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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.
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The Cochran boiler is an example of a single pipe boiler. In multi-tube boiler there are multiple pipes for the passage of water (or hot gases).Lancashire boiler, Benson boiler and Cornish boiler are all examples of multi-tube boilers. 12.
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Aug 27, 2011 · Classification of boilers. 1. Horizontal, Vertical or Inclined Boiler. -If the axis is inclined it is called as inclined boiler. 2. Fire Tube and Water Tube. -In the fire boilers, the hot gases are inside the tubes and the water surrounds the tubes. Examples: Cochran, Lancashire and Locomotive boilers.
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Cochran boiler definition. It is a vertical drum axis, fire tube boiler which has many horizontal tubes to increase heating surface area. It is categorized as a natural draft, natural circulation, low-pressure boiler.It has better efficiency than the simple vertical boiler.
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The steam generation rate in fire tube boiler is low, i.e.9 tonne per hour Cochran boiler can be divided into three parts such as fire box, combustion chamber and It is a multi tube boiler
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Mar 03, 2020 · Cochran Boiler. 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 …
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Oct 13, 2015 · Cochran boiler is modification of simple vertical boiler where heating surface has bin increased by increasing numbers of fire tubes. It is used for steam generation at low rate. It is a fire tube boiler. 3. Characteristics of boiler: A vertical, multi tubes, fire tube, internally fired, natural circulated boiler.
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Jun 10, 2021 · Cochran Boiler is a fire tube boiler in which coal or gasses are used as a working fluid, to generate steam and the steam is further used for various purposes. It is a multi-tubular vertical fire tube boiler having numerous …
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Sep 14, 2020 · The Cochran boiler is vertical, multi-tube boiler generally used for small capacity steam generation. Cochran boilers are made in different sizes of evaporative capacities ranging starting from 150 to 3000 kg/hr. and working …
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A Cochran boiler is a vertical axis, multi-tubular fire tube boiler that operates at low pressure having natural circulation. The Cochran boiler is portable and has a thermal efficiency of about 70% when coal-fired and 75 % when oil-fired. The Cochran boiler is a modified form of the simple vertical boiler and has higher efficiency than that of
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In fire tube boiler, the hot gases passes through the tubes and boiler feed water in the shell side is converted into steam.; Fire tube boilers are generally used for relatively small steam capacities and low to medium steam pressure. Fire tube boilers are competitive for steam generation rated up to 12,000 Kg/hour and pressures up to 10 Kg/cm 2 ; The fire tube boilers are available for
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Apr 05, 2015 · The fire tube boilers are classified as single tube and multi-tube boilers, depending upon whether the fire tube is one or more than one. …
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The Cochran boiler is a solid fuel-fired, multi-tubular, low pressure, natural draft, natural circulation, vertical drum shaft, fire tube boiler. It has an internally fired furnace. This type of boiler is an improved version of the simple vertical boiler. It …
Get priceSep 14, 2020 · The Cochran boiler is vertical, multi-tube boiler generally used for small capacity steam generation. Cochran boilers are made in different sizes of evaporative capacities ranging starting from 150 to 3000 kg/hr. and working pressure up to 15 bar. There is an external cylindrical shell and a firebox in the Cochran Boiler.
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Cochran Boiler is a vertical drum axis, natural circulation, natural draft, low pressure, multi-tubular, solid fuel fired, fire tube boiler with internally fired furnace. It is the modified form of simple vertical boiler. In this boiler, the fire tubes are …
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These types of boilers are most commonly utilized for applications that require low to medium steam pressure and a low rate of steam generation. A fire-tube boiler is not best for applications that require a high rate of steam applications. These boilers can generate steam pressure up to 10 Kg/cm 2 and steam production rate up to 12,000 Kg/hr.. The fire tube boiler has a furnace, …
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Fire Tube and Water Tube Boilers Cochran Boiler • Working Pressure 6.5 bar (max pressure 15 bar) • Steam Capacity 3500 kg/hr (maximum capacity 4000 kg/hr) • Efficiency 70 to 75% • Tubes diameter 6cm • One of the best types of vertical multi tubular boiler and has a …
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They are low-pressure boilers. The operating pressure is about 25 bar. Example to fire tube boilers: Cornish boiler. Cochran boiler. Locomotive boiler. Lancashire boiler. Scotish marine boiler. Water Tube Boiler: In this boiler, the water is present inside the tubes and the hot flue gases surround them.
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Cochran Boiler: Definition, Construction or Main Parts, Working
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Vertical Fire Tube Boiler. A vertical tube boiler is a simple boiler with a vertical cylinder design. It includes cross tubes, and the furnace is located at the bottom of the boiler. Combustion cases escape through the top of the unit via the flue. Cochran Fire Tube Boiler. The Cochran boiler is also a vertical-type boiler of multi-tubular design.
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