Download Boiler operator's handbook by Kenneth E. Heselton PE PDF

By Kenneth E. Heselton PE

This e-book was once written particularly for boiler plan operators and supervisors who are looking to decrease plant working expenses, in addition to tips to function vegetation of all kinds and sizes extra correctly. it really is newly revised with directions for HRSGs, mixed cycle structures, and environmental results of boiler operation. additionally incorporated is a brand new bankruptcy on refrigeration platforms that addresses the environmental results of inadvertent and intentional discharges of refrigerants.

Going past the fundamentals of "keeping the strain up," the writer explains in transparent phrases tips to set potent priorities to make sure optimum plant operation, together with making sure protection and continuity of operations, combating harm, handling environmental effect, education substitute plant operators, logging and maintaining historic info, and working the plant economically.

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Example text

All fluids have mass. Fuel oil normally weighs less than water. Natural gas weighs less than air but it still has mass. We can treat them all the same in general terms because what happens when they flow is about the same. Gas and air are a little more complicated because they are compressible, their volume changes with pressure. In practice the relationship of flow and pressure drop are consistent regardless of the fluid so we’ll cover the basics first. Flow metering using differential pressure is based on the Bernoulli principle.

In order for this edition of the book to be more meaningful for plant operators I’ll attempt to present some descriptions of steam and water cycles. For almost any plant there is a steam and water cycle; the exception being hot water heating boilers where steam is not generated. In hot water heating plants the cycle is simply heat in and heat out. It is added to the water in the plant boilers, the water is transferred by circulating pumps (or natural circulation) to radiators, convectors, kitchen equipment, etc.

Even though we can’t see the air, can understand buoyancy or how an air stream is diverted. Buoyancy is also evident in a block of wood floating on water. The wood is not as dense as the water so it is lifted up. The hot air the hawks ride is not as dense as cold air so it floats up in the sea of colder air around it. The movement of air and gases of different densities is important in a boiler plant, we refer to it as “natural draft,” movement of air that naturally occurs because air or gas of higher temperatures is lighter than colder surroundings and rises.

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