Articles by Harvey Sachs Wilson Lin

Emerging Technology: Liquid Desiccant Air Conditioners

Ongoing economic and indoor environmental concerns require HVAC innovation. New liquid desiccant air conditioning systems offer substantial energy savings and greatly improved humidity control in applications where latent loads (moisture) are very high relative to sensible loads.
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Emerging Technology: Automated Fault Detection and Diagnostics for Rooftop Units

Smart HVAC equipment that recognizes when it is failing or has failed, or when conditions have drifted outside its optimum range, could save substantial amounts of energy if the equipment sent useful information to the building owner or contractor. This is referred to as automated fault detection and diagnostics (FDD).
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Emerging Technology: Commercial Energy Recovery Ventilation Systems

Energy recovery ventilation (ERV) systems exchange heat (often both sensible heat and water vapor) between the outgoing exhaust air and the ventilation air being brought in. Under appropriate conditions, this allows reducing the capacity of the HVAC system and saves energy.
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Emerging Technology: Advanced Rooftop Packaged Air Conditioners

Advanced packaged rooftop units (RTUs) are emerging with higher efficiencies and additional features designed to save energy off-peak and improve reliability. Features include improved fans and economizers; better controls for the fan, refrigerant cycle, and economizer; and advanced monitoring and diagnostics.
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Emerging Technology: Chilled Beam Cooling

Chilled beam systems provide savings by replacing fan energy with pump energy. They use pumped chilled water instead of blowing cold air. Water has much higher heat capacity, both by mass and volume. In typical pump and fan arrangements, this has been shown to translate into a reduction in fan energy by a factor of seven.
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2014 World Energy Engineering Congress

Scenes from the 2014 World Energy Engineering Congress in Washington, D.C.

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NEWSMakers: Kari Arfstrom

Kari Arfstrom, executive director of the HVACR Workforce Development Foundation, talks about the upcoming HVACR & Mechanical Conference. Posted on Jan. 23.

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