ARLINGTON, Va. — ACCA has announced the launch of its newest online certificate training program, Qtech: Duct Design Basics. Through Qtech, contractors can offer their employees on-demand training in ...

The fourth edition of HVAC Systems Duct Design presents the basic methods and procedures required to design HVAC air distribution systems. This manual provides the HVAC system designer detailed ...

The contaminants identified as cancer-causing include benzene, formaldehyde, butadiene, toluene, acrylonitrile and isocyanates, among others. These chemicals are emitted as gases and soot during a ...

Although the offshore industry lacks standardized guidelines, this article identifies some criteria that an engineer should consider in the design of offshore heating, ventilating, and ...