Stoichiometric air-fuel ratio control during transient operation requires an accurate estimate or measurement of the instantaneous air flow rate in an engine. Two methods are commonly used for ...

Your engine breathes through its air filter, and every drive depends on how freely that air can flow. A clean, well chosen ...

Most operators know that air should be kept out of a heat exchanger’s cooling water supply line. Air can collect in pockets and block flow, increasing velocities, increasing system resistance, ...

Most residential HVAC contractors and technicians want to do a great job for their customers. Nothing feels better than figuring out the cause of a homeowner’s issue and then implementing the right ...

In part one of this series (May 2003), we explained the need for personal sampling, reviewed passive monitors and personal sampling pumps, and examined OSHA's substance-specific standards and their ...

We independently review everything we recommend. We may get paid to link out to retailer sites, and when you buy through our links, we may earn a commission. Learn more› By Tim Heffernan Tim Heffernan ...

The human body is absolutely amazing. The average human has 60,000 miles of blood vessels. For every pound of fat you gain, the body creates seven miles of new blood vessels all by itself. No wonder I ...

The researchers noticed that, keeping the air flow from the compressor steady, the flame jet in the tube appeared to lengthen when the microwave power was increased. They set about trying to measure ...

Scientists in the United Kingdom have compiled a new database of adiabatic compressed air energy storage projects. Using this data, they were able to determine the experience rate and identify the ...