Steam Engines

Boiler power is not determined in megawatts. A boiler horsepower is determined as 33000 btus. That is equivalent to 34.5 pounds of steam from and at 212 F. Conversion of boiler conditions (factor of evaporation) output and horsepower to atmospheric steam conditions is the norm for determining boiler horsepower.

The ASME code contains several methods for determining boiler horsepower.

Megawatts are a determination of turbine-generator output.

The first railway engine was designed and built by Richard Trevithick in 1804. George Stephenson built his first engine, Blucher, in 1814 after seeing one of Trevithicks.

Used human or animal effort to get things done.

Newcomen's engine was heated with steam being admitted to it, then the cylinder was cooled causing the steam to condense, creating a vacuum that drew the piston down, driving a pump. Watt improved upon this by building a separate condenser to keep from heating and cooling the cylinder, which caused thermal stress and cracking. Later with the help of Matthew Boulton they designed an engine that used the power of the steam itself (rather than a vacuum) to drive the piston in both directions, creating the first double acting engine.

The needs that led to the spread of the steam engine in 18th and 19th century in Europe were the necessity for mass production, and the need to cut down the production costs.

It allowed for the first time in history a steady, reasonably reliable, prime mover for factory equipment and transport, with few geographical limitations on location. Prior to that the nearest steady power available was from water falling onto a water-wheel, for which of course you need a reliable river, so limiting its use to fixed plant alongside such rivers.

there was a shortage of available workers because of malaria outbreaks. the steam engine fixed this problem and made work easier for other workers

the first engine was made in 1878 by a company called burrell. in 1967 it was found in a bush in dorset and it has been at the great dorsetn steam fair since 2007.:)

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Exactly what it sounds like. A machine that sterilizes equipment by blasting it with hot steam, which kills bacteria.

well just imagine that you are building a car, or a train or an airplane and the metal you use for something starts to rust, if that's near the engine or something that leads to the engine than it could put set the car a light.

It did so directly only for miners. Savory's engine was a purely vacuum-driven device for pumping water from mines, the vacuum being developed by condensing steam, but it laid the foundations for developments including crucially, those of James Watt.

Should be 140 degrees if your home water supply is 140 or you have a water pre heater in the dishwasher. 140 degress is the public health standard for commecial business dishwashing. A lot of homes don't have water heat that high because of safety to the children in faucet wash water.

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They are inclined so that hot flue gases come in contact with hottest water.

Differential expansion means gap between fixed Blade & rotating blase of a turbine.. When steam enters into the turbine, rotor tends to expand towards generator side & casing tends to expand towards control valve side. If differential expansion increase then there is a possibility of reducing axial gap between rotor & fixed blades.

When differential expansion is positive its means rotor expand more than the casing expansion. There is a limit upto +ve 5. If increases than +ve 5 it means we have to check front side tie rods status.

Since the early 18th century, steam power has been applied to a variety of practical uses. At first it was applied to reciprocating pumps, but from the 1780s rotative engines (i.e. those converting reciprocating motion into rotary motion) began to appear, driving factory machinery such as spinning mules and power looms. Their use in agriculture led to an increase in the land available for cultivation.

The weight of boilers and condensors generally makes the power-to-weight ratio of a steam plant lower than for internal combustion engines. For mobile applications steam has been largely superseded by internal combustion engines or electric motors. However most electric power is generated using steam turbine plant, so that indirectly the wo

rld's industry is still dependent on steam power.

An interesting link to a website, placed below, will give you the complete history.

Steam boilers work by boiling water to generate steam. The steam then is used to heat the engine.

The sodium in the salt reacts with the zeolite in the softener stripping it of the calcium when you regenerate the softener. When the softener is in service the calcium more readily replaces the sodium on the zeolite resin beads softening the water.

machine that takes advantage of the fact that pressure is sorted out equally in all directions possible in a liquid. :)

Mineral deposits from use of hard water.

This cannot be answered. You will have to give me some choices to choose from.

The Steam-Engine as such was not patented, but assorted individual designs of the basic machine, and of its various parts, were patented by various manufacturers over the years.

Thomas Savery, in 1698, patented the first practical, atmospheric pressure, steam engine of 1 horsepower (about 750 watts)

It depends on other conditions too. There is a net suction head, which is the pressure from which the compressor is drawing the gas. An increase here will often improve the compressor's efficiency. There is also a net discharge head, which is the pressure the compressor is trying to maintain. An increase here will often decrease the compressor's efficiency. There is an efficiency curve for all compressors, and they are all different based on their design, it is dependent on the differential pressure (NDH - NSH) and load (air flow in SCFM, typically) of the compressor, at a certain load the efficiency peaks then drops as the load increases.

Newcomen and watt developed the steam engine