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 Thomas Yoon (4,696)     
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56 Articles Total
Now Displaying Page 2, Articles 26 to 50
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| Crankcase Explosion One of the most frightening phenomenon for operators of diesel engines is the crankcase explosion. Although many force-lubricated, totally enclosed, reciprocating machines like diesel engines, steam engines, air compressors and many others had... ( added 3 years 133 days ago.) |
| Explosive Air Have you considered your air compressor as a potential bomb?
If you have not, then you better!
Although air compressors are built to withstand high pressures, and will have all the necessary relief valves to take care of normal occurring... ( added 3 years 133 days ago.) |
| Greasing Bearings - How Much is Enough? Previously, we have talked about using suitable greases for different applications. Basically, we want to use low temperature greases for low temperature applications and high temperature greases for high temperature applications. The reason is... ( added 3 years 319 days ago.) |
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| What You Should Know about SMAW In shielded metal-arc welding, the intense heat from an electric arc is used to melt and fuse metals to form a weld. It is one of the oldest and most widely used welding processes. Although used chiefly for joining iron and mild steels, shielded... ( added 3 years 355 days ago.) |
| Repairing Your Own Machine Components Many industrial concerns have workshops of their own. For the repair of worn shafts, the lathe machine is excellent. Keyway slots can be machined by using a milling machine, while a shaping machine can do machining of large flat areas. A drilling... ( added 3 years 355 days ago.) |
| Effective Fire Prevention Measures in the Home 1 Are you aware that you can lose all your personal belongings in a single fire?
It's very sad when fire strikes your home. You lose everything. You do not have a chance to save many belongings. You will be considered lucky if you escape with... ( added 3 years 355 days ago.) |
| Oil or Grease Lubrication? A lubricating grease is usually a mixture of 85 to 90 percent mineral oil or synthetic oil together with a thickener. In a majority of all greases, the thickener is a metallic soap. One example is lithium stearate for lithium soap.
The function... ( added 3 years 355 days ago.) |
| Lubrication Theory The function of a lubrication medium is:
1. To form a film between moving bearing components so that metal to metal contact is prevented. 2. To reduce friction and eliminate wear 3. To protect against corrosion 4. To seal against impurities... ( added 3 years 355 days ago.) |
| Lubrication Oil Change (A rough guide) In our previous issue, we discuss about the properties of lubricating oil and what to look for when buying or replacing them. http://www.free-engineering.com/fwezine33.htm
Today, we want to find out as to when to replace the lubricating oil. If... ( added 3 years 355 days ago.) |
| Shaft Alignment In the last issue, we discussed shaft seals and how liquid is prevented from coming out from the pump housing even though the shaft is rotating. http://www.free-engineering.com/fwezine30.htm
Some mechanical seals are made to very fine... ( added 3 years 355 days ago.) |
| Gland Packing In the last issue, we discuss about mechanical seals and how the various components work together to seal the liquid from escaping at the pump shaft area.
In this issue, we will focus on a much simpler way of sealing a rotating shaft of a... ( added 3 years 355 days ago.) |
| Mechanical Seals A centrifugal water pump contains a few basic components as follows:
1) The housing for containing the water. 2) The impeller attached to a rotating shaft that moves the water. 3) The coupling that transmits the rotating action of a motor (or... ( added 3 years 355 days ago.) |
| Naval Architecture Today, we are starting an entirely different subject - Naval Architecture. It's a field of study that involves Physics, Mechanics, Engineering and Legislation.
Architecture involves design of buildings.
Naval Architecture is slightly... ( added 3 years 355 days ago.) |
| Why 2-Stroke Engines? In our previous publication, we touched on the subject of 2-stroke diesel engines. Today, we ask why we choose to use 2-strokes?
As you might remember, for a 2-stroke engine, the piston has to move up, and then down to complete one cycle of the... ( added 3 years 355 days ago.) |
| Pump Trouble In any problem analysis, we have to specify the problem, check whether there is any deviation from the normal condition, identify the possible causes, evaluate the possible causes and then confirm the true cause.
Pumps or other machinery will... ( added 3 years 355 days ago.) |
| 2-Stroke Diesel Engines In our last publication, we touched a bit on 4-stroke diesel engine. Today, let's touch on 2-strokes.
What is a 2-stroke diesel engine?
As the name suggests, these engines work on reciprocating actions of pistons. One stroke means one linear... ( added 3 years 355 days ago.) |
| 4-Stroke Diesel Engines What is a 4-stroke diesel engine?
As the name suggests, these engines work on reciprocating actions of pistons. One stroke means one linear motion of the piston in one direction. When the piston moves in the opposite direction, that is counted... ( added 3 years 355 days ago.) |
| Engine Timing How does the engine know when to spray fuel, let in air, compress the air, and exhaust the spent combustion product?
Obviously, there must be a certain timing for these processes to follow in order for the diesel engine to work.
If the fuel... ( added 3 years 355 days ago.) |
| Diesel Engines One of the most reliable internal combustion engines around is the diesel engine. In many industrial installations, diesel engines are used as prime movers for the generation of electricity and for emergency air compressors.
It's true that they... ( added 3 years 355 days ago.) |
| Transducers Complex control systems all make use of signals that can be easily measured and altered remotely. Automatically operated machines or actuators need to be powered either by electrical motors, pneumatic or hydraulic cylinders.
The most common... ( added 3 years 355 days ago.) |
| Chemicals for Cooling Towers Cooling towers are used to cool down hot condenser water taken from chillers of air conditioning systems. The cooling effect of cooling towers are attributed to the evaporation of the water when it is blown through by air from the fans.
After... ( added 3 years 355 days ago.) |
| Centrifugal Chillers Centrifugal chillers are used for cooling large buildings in a centralized air conditioning system. There are other types of chillers using screw compressors and reciprocating compressors. These are usually smaller in size. Today's topic is about... ( added 3 years 355 days ago.) |
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| Cooling Towers - Workhorses of Industries Industrial Processes usually produces a lot of heat. Air-conditioning also removes heat from the indoor areas through heat exchangers.
Where does all the heat go?
All these heat has to be removed. If you are not near the sea, you have to use... ( added 3 years 355 days ago.) |
| Boiler Water Chemical Treatment A boiler is used for generating steam. It does this by heating water to its boiling point, after which steam will evaporate from it.
When you boil a kettle of water, you will shut off the fire or electric power when the water comes to a boil.... ( added 3 years 355 days ago.) |
| Boiler Soot Blower A boiler that has been running for a long time is sure to have soot deposits on its tubes and furnace.
This is especially prominent in boilers using heavy fuel oil for burning. Although the fuel will be heated and filtered before combustion... ( added 3 years 355 days ago.) |
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