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 ...

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 ...

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 ...