In accordance with the Indian boiler Regulations the following mounting should be fitted to boiler: Two safety valves, two water level indicators, a pressure gauge, a steam stop valve, a feed check valve, a blow off cock, an attachment for inspector's test gauge, a man hole and mud holes or sight holes. Boiler of Lancashire and Cornish type should be [...]
Most of the boilers are fitted with accessories. They either increase the efficiency of the boiler plants or help in their working. The following accessories are attached to a modern boiler: Boiler Accessory # 1. Economizers: The greatest item of heat loss in a boiler plant is the heat carried away in the flue gases up the chimney or stack. [...]
There are different types modern high boilers used: 1. La Mont Boiler 2. Benson Boiler 3. Loeffler Boiler 4. Schmidt-Hartmann Boiler 5. Velox Boiler. Type # 1. La Mont Boiler: The La Mont boiler is a first forced circulation boiler introduced by La Mont in 1925. This boiler is water tube type. The water circulation and schematic location of different [...]
The following article will guide you about how to calculate boiler efficiency by indirect method. Definition of Boiler Efficiency: The boiler efficiency is defined as the ratio of heat actually used for producing steam in a certain period to the heat supplied in the furnace during the same period. Both quantities being measured in the same units. The boiler efficiency [...]
In this article we will discuss about the performance test and efficiency calculation of boiler. Feed Water: The measurement of flow rate of feed water can be done by different methods. One of the best methods, if it can be arranged, is for the volume of feed water to be measured by means of two vented calibrated tanks of relatively [...]
In this article we will discuss about:- 1. Meaning of Boiler 2. Historical Development of the Boiler 3. Classification 4. Essentials 5. Introduction to IBR or Regulations for Chimney (with Reference to IBR/MSNC Bombay) 6. Boiler Calculations. Contents: Meaning of Boiler Historical Development of the Boiler Classification of Boilers Essentials of a Good Boiler Introduction to IBR or Regulations for [...]
Draught is the pressure difference which is necessary to draw the required quantity of air for combustion and to remove the flue gases out of the system. Thus the object of producing draught in a boiler is: (i) To provide sufficient quantity of air for combustion (ii) To make the resulting hot gases, to flow through the system (iii) To [...]
In this article we will discuss about the design and constructional details of various boilers used in power plants for steam generation. Design of Lancashire Boiler: It is fire tube, stationary, horizontal straight tube, internally fired, natural circulation boiler. Normal working pressure of this boiler is about 15 bar and steam generation capacity is upto 8T/hr. Constructional Details: The main [...]
Here is a list of twelve major mountings and accessories of a boiler. 1. Dead Weight Safety Valve: As the name implies, this valve is used to assure safe working of the boiler. When the pressure of steam inside the boiler drum increases beyond the safety valve, it may cause damage to the pressure part, or even a severe accident. [...]