2023 April

Engineered Systems Magazine

The April issue of Engineered Systems spotlights the most innovative, forward-thinking products showcased at the 2023 AHR Expo; showcases ASHRAE’s industry leadership; paves the path to energy-responsible pharma cleanrooms; visits the boiler room confessional; and much more.

Decarbonization Takes Center Stage at the 2023 AHR Expo

A list of the most innovative, forward-thinking products showcased on the AHR Expo’s trade show floor.

Herb Woerpel

April 3, 2023

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Legislators worldwide have set net-zero targets for the CO₂ expelled into the atmosphere. Companies and institutions are getting on board, looking for ways to meet their sustainability goals and reduce their carbon footprints.

The Path to Energy Responsible Pharma Cleanrooms

Chris Case

May 12, 2023

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Cleanrooms require the movement and filtering of air to remain clean, and lots of it. Here's what you need to know about it.

Understanding the Pump Curve Proves Crucial in a Hydronic System

Ionel Petrus, P.E.

May 11, 2023

One Comment

To understand how a pump is going to be controlled, one first needs to understand the pump curve.

Commissioning Better Management of BAS Alarms

Proper planning, attention to details helps avoid alarm saturation.

Miles Ryan P.E.

April 19, 2023

3 Comments

Far too often, building operators are overwhelmed with the number of alarms generated on their building automation systems (BAS).

Progression of viral hosts from a zoonotic source to a human pandemic

IAQ and Emerging Infectious Diseases

What is the influence of IAQ on human immune defenses.

Stephanie Taylor, M.D., M. Arch, CIC

April 4, 2023

One Comment

Barely three years after a pandemic disrupted life around the globe, reports of avian influenza infections moving from birds into mammals are surfacing.

Fast-Tracking a Texas Hospital's HVAC Upgrade Using Grooved Pipe-Joining Technology

The use of grooved pipe-joining solutions reduced the time needed to complete the project.

Chris Rathmann

April 5, 2023

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Since 1975, Valley Regional Medical Center has offered critical health services across more than 25 specialties to the community in Brownsville, Texas. After decades of use, the hospital’s existing cooling towers and piping displayed signs of deterioration. While maintenance teams performed work to control leaking, a replacement was necessary to prevent system failure.