Search results

Your safety valve should not be opening unless you are above of your design setpoint. You should be able to adjust it within a range. It may be operating correctly and you need a pressure gage to monitor what is happening. It may need more control of the grate and combustion air. The reason...

I make a suggestion here before you look at different fuels. If you have access to a oxygen meter and a temperature gage its possible to make a good guess at its performance. Better yet if you can get your hands on one of the newer combustion analyzers. So if you need more air it may mean...

Well I googled spherical separator and they were all quite large operating as dead space removal with entrained filters to capture oil and liquid products. None used the vortex principle as that requires the establishment of a low pressure area in the center. However did find similar designs...

I have three chain saws, two gas one electric. They all have their place but the electric has a real advantage when its near a source of power and the cord is less than 100 feet. Its lighter, always starts, much easier to handle, but still takes the same care from the drive sprocket to the...

A sphere is usually a poor shape for particulate separation and would not normally conform to separation physics. Has this geometry been tested for efficiency other then this one off use. Typically you inter with a high velocity and the walls pick up the particles and the exit is a much larger...

Hilsch vortex tube is in common use, especially in cooling instrument cabinets and hazmat suits which need cooling where the cool air is placed usually at the neck or helmet area. But energy use is quite high when considering you need high compressed air at least 100psi.

Well, let me present a counter argument. Motors will get to hot when they experienced a high current draw above their rating. So which protective device sees that condition first? I think that would be a fuse or circuit breaker. But on a side note if a DC motor got hot at lower speeds I would...

I would like to discourage you from operating that way. Because when heat builds up in a motor they tend to hold that heat longer, a lot longer then you realize and its better to nip it in the bud by cutting off the power before it gets hot in the upper range. I have experienced that only...

Well let me see if I can clarify that issue. The calculations are all the same based on the material specifications available. We then put a safety factor on those calculations based on the material and construction methods used. To account for the degree of unknowns we make a judgement call...

A blue flame is a result of complete combustion and it yields the highest temperature. If you do not allow flame impingement on the heat transfer surface there will normally be no problem provide the fuel does not contain sulfur or nitrogen compounds which form acids. You will make more NOX...

You might be interested to know that Hartford Insurance refused to let me use solid state design in a critical safety control panel. All relays all 120 volts all hard wired. Some DC was allowed because a battery room was available. Old school design but effective. The whole purpose was to...

It makes no difference on copper or any material. The design equations incorporate the values for whatever material you are using. The material will either meet the strength requirements at temperature and pressure or it will not.

yes, all kinds of devices. When the motor stalls its the same as a dead short similar to locked rotor current. Look for a circuit breaker or a fuse block. Hunt down someone who can size it for you. Another type of circuit would be a crowbar circuit but that should be built into the power supply.

I used to go with my father when he worked on engines in the field. He had a portable lapping and grinding tool which he often used. But most importantly before starting he would meticulously mike the cylinder bore. He said if a taper is there when you start it will be there when you finish...

Every vibration problem has an excitation force. With IC engines it is the firing of the cylinders that create the pulse. How close they are and where they are located determines the magnitude of the forces. Timing is is set by the design of the crank and once the crank is designed its...

Yes, it is possible but the vibration impulses would be very difficult to manage. Not sure how you compensate for that . The vibration dictates the firing order, whether its in line, opposed and even the shape of the V. Might get away with it at low rpms. But you probably will need a lot of...

Depends on how you cool the water. I would be tempted to modify a air conditioner for that service and use a glycol with a rust inhibitor. Basically a closed loop system. And if you are worried about solids put a filter in the line before the spindle.

Flywheels are used to store inertial energy to help balance engine vibration and force the crank past a dead center point. It smooths out the engine pulses. The amount of mass is calculated and will vary based on total mass of crank and other factors. For reliability purposes less gears the...

I would be tempted to reverse the angle iron to open up the air flow area and get rid of the dead spots where ash can accumulate. And if possible would make that grate so it can be moved a bit to shake clinkers lose so they go to the ash pan. This would allow more air to be evenly distributed...

There is a part of this story that is missing. It deals with the economics of standards and who sets them. The standards are often based on geometric mathematics as unit are specified in sizes that are reasonable for mass production. Who ever has the most adopted standard as a country has an...