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The Lamont boiler is a type of forced circulation water-tube boiler that uses an external feed pump to circulate the water in the small diameter of the water tubes. In this type of boiler, the water is circulated inside the water tubes while the flue gases surround these tubes. In 1925, Walter Douglas La-Mont invented the Lamont boiler.
Natural circulation: If the circulation of water takes place due to the difference in density caused by the temperature of the water, then it is called a natural circulation boiler. Boiler with the natural circulation of water: Lancashire boiler. Babcock-Wilcox boiler.
When the circulation of water, in a boiler, is by convection currents which are set up during the heating of water, then the boiler is known as internally fired boiler externally fired boiler natural circulation boiler forced circulation boiler. Mechanical Engineering Objective
clarification: Natural circulation is used in the primary circuit of a Schmidt-Hartmann boiler and this is sufficient enough to affect the desired rate of heat transfer and to overcome the thermo-siphon head of height about 2 to 10 meters.
Steam boiler | Steam boiler Objective Type Questions and answers. 16. Which of the following is a water tube boiler.. A. Locomotive boiler. B. Cornish boiler. C. Cochran boiler. D. Babcock and Wilcox boiler. View Answer. D.Babcock and Wilcox boiler.
3 Types of Circulation In Boiler - Water Treatment Basics
Forced circulation boiler - Wikipedia
Which of the following is a single tube boiler? Q: In natural circulation boilers, water circulation takes place due to natural convection current produced by the application of heat.
What is Natural Circulation? - Definition from Corrosionpedia
A boiler is a closed vessel in which fluid (generally water) is heated. The fluid does not necessarily boil. The heated or vaporized fluid exits the boiler for use in various processes or heating applications,[page needed][page needed] including water heating, central heating, boiler-based power generation, cooking, and sanitation.
Steam Boilers, Engines, Nozzles and Turbines When the circulation of water, in a boiler, is by convection currents which are set up during the heating of water, then the boiler is known as Natural circulation boiler
Description : Which of the following boiler is best suited to meet the fluctuating demand of steam.. A locomotive boiler. Natural circulation c. Over-through d. Positive forced circulation Last Answer : a. Forced circulation process-engineering Boiler works from
5. When the circulation of water, in a boiler, is by a centrifugal pump, then the boiler is known as (a ) natural circulation boiler (b ) externally fired boiler (c ) forced circulation boiler (d ) internally fired boiler 6. Which of the following statement is wrong?
C. Prevent the heating water from circulating the wrong way in the system D. Keep non-combustible water from entering the drinking water system D A low water cut off device on an automatically fired hot water heating boiler rated at 350,000 Btuh (102 kW) is
2011/2/2 · ONCE-THROUGH BOILERS. These boilers, in contrast to recirculation or natural circulation units, are characterized by continuous flow paths from the evaporator inlet to the superheater outlet without a separation drum in the circuit. They are almost exclusively used for steam production in connection with utility electricity generation, and have
In natural or thermal circulation type boilers, the rate of circulation depends strongly on the density difference between the unheated water and the heated steam-water mixture. The overall circulation rate (flow) in natural circulation …
2015/1/13 · Natural circulation is the ability of a fluid in a system to circulate continuously, with the difference in density being the only driving force. In another way, natural circulation is caused by convection currents which result from the uneven heating of the water in a boiler. It may be either free or accelerated, and is primarily used in