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In boiler when water is heated, if the water is hard then would contain salts. So on heating the water the water particles are evaporated by the time and the saturated salts are left behind. Now its the part of the boiler, if the inner walls are made up of non stick material or such then the salts which is left as a precipitate will not stick on the same and hence make the water thicker and thicker as more and more water will evaporate which would result in a very thick liquid substance having a lot of salt rather than water, this is known as SLUDGE. On the other hand if the inner walls of the boiler is not made up of such non sticking material then the salts would stick on them resulting a formation of a thick layer of salts on the walls, this is known as SCALE.
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What is the comparison between forced circulation and natural circulation boilers?
Natural circulationForce circulation1.In Natural circulation boiler the circulation is done by means of nature.In Forced circulation Boiler the circulation is done by the means of pumps.2.These type boilers are low capacity boilers.These type boilers are of high capacity boilers.3.The heating of boiler parts is not uniform, so, there are chances of differential expansion of parts and hence chances of cracks are maximum.The heating of boiler parts is uniform, so, there is no chance of differential expansion of parts and hence chances of cracks are minimum.4.These boilers take maximum time from cold start.These boilers take minimum time from cold start.5.There is a scale formation between the water tubes and hence blockage of pipes.There is no scale formation between the water tubes and hence no blockage of pipes.6.These boilers produce lesser steam and have low pressure steam.These boilers produce steam at 30 to 650 tons per hour, at the temp of temp. & 160 bar pressure.
What is the difference between large-scale aid project and appropriate technology?
The difference between a large-scale aid project and appropriate technology is that a large-scale aid is when a country receives a lot of aid, so it's basically given to the people, but an appropriate technology is developed by the people themselves without any aid.
What is difference between manufacturing plant and pilot plant?
A manufacturing plant basically manufactures a chemical on a mass scale however a pilot plant helps to develop the process on a small scale, before a manufacturing plant is built.
What is the difference between Safety Engineering Technology and Safety Engineering Science?
There may not be any science involved in engineering as it is a process of detailing based on available/validated science. engineering design is purely mathematical calculations and drawings as per scale after desdigning.
What is the difference between horticulture and agronomy?
Horticulture deals with plant cultivation, that is, to prepare the land for raising crops,[on a smaller scale that Agriculture], and Agronomy deals with using plants for food, feed, fuel, fiber, and pharmaceutical crops.
What is the difference between sludge and scale?
Sludge is a semi-solid residue formed by the accumulation of suspended solids in water, while scale is a hard deposit formed by the precipitation of minerals from water. Sludge usually forms in liquid form, while scale forms as a solid on surfaces like pipes or heating elements. Both can cause blockages and reduce the efficiency of systems like boilers or pipelines.
What is sludge and scale?
distance is the separation between two points and scale is the type of unit you adpt to measure anything.
What is the difference between bar scale and statement scale?
What is the difference between a bar scale and a statement scale
What are the difference between successive values on a scale?
The difference between the successive values on a scale is an interval.
The difference between one number and the next on the scale?
the difference between ine number and the next on the scale ?
What is the difference between Australia's hurricane scale and the United states hurricane scale?
the difference is that the australian scale has no category
Difference between returns to scale and constant return to scale?
differentiate between returns to scale and constant return to scale
What is the difference between moutians and hills?
Scale.
What is the difference between a microscopic picture and a macroscopic picture?
This is a big difference of scale; at microscopic scale more details are revealed.
What is the difference between a microscope picture and a macroscopic picture?
This is a big difference of scale; at microscopic scale more details are revealed.
What is the difference between the Richter scale with the moment of magnitude scale?
well nothing. they are the same
What is the difference between wg scale and gs scale?
GS=salary. WG=hourly.
