ASHRAE Introduces Guide for Reopening Schools

ASHRAE Introduces Guide for Reopening Schools

School is back in (sort of) and the ASHRAE Epidemic Task Force is doing everything it can to help school districts and university campus environmental health managers, facility managers, administrators, technicians, and service providers navigate through these unprecedented circumstances. Most notably….

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Reducing the Transmission of Viruses with Humidification Part 2: Understanding Airborne Viruses

Reducing the Transmission of Viruses with Humidification Part 2: Understanding Airborne Viruses

The World Health Organization (WHO) made big news in early July by acknowledging increasing scientific evidence that COVID-19 (SARS- CoV-2) bears the risk of airborne transmission. But wait -- didn’t we already know that? The answer to that question is more complicated….

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Reducing the Transmission of Viruses with Humidification Part 1: Optimum RH Range

Reducing the Transmission of Viruses with Humidification Part 1: Optimum RH Range

Who would have imagined less than a year ago that our collective daily lives would be so greatly impacted by a single, air-borne virus? Yet here we are, recalibrating “normal” in the wake of COVID-19 (SARS- CoV-2). And while social distancing and masks dominate much of the public conversation, building humidification is the….

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How To Size A Waterside Economizer Part 6: The Key To Efficiency

How To Size A Waterside Economizer Part 6: The Key To Efficiency

Approach temperature and an AHRI 400 rating are probably the two most critical factors when it comes to selecting a plate and frame heat exchanger for maximum efficiency and guaranteed performance. Do yourself and your client a favor and…

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How To Size A Waterside Economizer Part 5: Why Plate & Frame Heat Exchangers Are Preferred

How To Size A Waterside Economizer Part 5: Why Plate & Frame Heat Exchangers Are Preferred

Waterside economizing typically involves the transfer of BTUs from an open loop cooling tower system to a closed loop chilled water system. Since these two hydronic systems must remain separate so we do not foul the chilled water systems, a heat exchanger is required to prevent mixing of the fluids, but what type of heat exchanger should you choose?

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