What is the use of Cochran boiler?
What Are the Applications of Cochran Boilers? Cochran boilers are used in power generation plants where large quantities of steam from 500 kg/s with high pressures approx. 160 bar and high temperatures reach up to 550o C.
What is the application of water tube boiler?
Water tube boilers can generate saturated or superheated steam, which is useful for applications such as steam turbine power generation. In addition, these boilers are commonly used in process industries, including chemicals , refining, and pulp and paper manufacturing.
What is Steam Boiler PDF?
A steam boiler is a closed vessel, generally made of steel, in which water is heated by some source of heat produced by combustion of fuel and ultimately to generate steam. The steam produced may be supplied at low pressure for industrial process work in cotton mills, sugar industries etc.
What is the area of the heating surface of a Cochran boiler?
A typical Cochran boiler, as illustrated, might be 15 feet (4.57 m) high and 7 feet (2.13 m) in diameter, giving a heating surface of 500 square feet (46.45 m2), and a grate area of 24 square feet (2.23 m2). Working pressure is between 100 and 125 psi (6.9 and 8.6 bar; 690 and 860 kPa).
What is the advantage and disadvantage of water tube boiler?
Disadvantage:
| SL NO | Disadvantage |
|---|---|
| 1. | Complex design and High maintenance cost. |
| 2. | A skilled operator is required for operation. |
| 3. | This is used in large power plants and it is uneconomical for use in small industries. |
| 4. | For the same power output, the cost of a water tube boiler is high. |
What are the disadvantages of boiler?
Disadvantages Of System Boilers
- Take Up Space – Although system boilers don’t need a cold water tank they still take up more room than a combi boiler.
- Limited Hot Water – The amount of hot water you have is limited to how much water your hot water cylinder is.
What are the applications of steam boiler?
The use of steam boilers in HVAC systems include water heating, sanitation, cooking, waste energy utilization, and central heating. Fire-tube boilers are used to warm the air which is transferred to the rooms of a house or warehouse.
Which of the following is boiler mountings?
Explanation: Steam stop valve, Man hole and pressure gauge are boiler mountings.
What is the function of boiler?
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.
What are the specifications of a Cochran boiler?
The following Specification of Cochran Boiler are: Efficiency is 75 percent. Heating Surface area 120 sq meter. Working pressure 7 bar and a maximum up to 15 bar.
What are the fire tubes in a Cochran boiler?
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.
How is ash collected in a Cochran boiler?
The coal is fed into the grate through the fire door and ash formed is collected in the ash-pit located just below the grate and it is removed manually. The furnace and the combustion chamber are connected through a pipe. The back of the combustion chamber is lined with firebricks.
What is the efficiency of a Cochran b oiler?
Every Cochran b oiler is third party insurance authority inspected prior to despatch. Efficiency Cochran boiler and economiser systems will operate up to 96% efficiency, based upon an NCV of 34828 kJ/m3for Natural Gas and Fan NCV of 35863 kJ/l for Distillate Fuel Oil.